Jobs C# / .NET

Job Title: Senior .NET / C# Developer (MetaTrader 5 Integration & Power Platform)
Company: VCG Tech Limited
Location: Remote (Global)
Employment Type: Full-Time

Role Purpose

You will own the integration connector that links our trading platform to the backend systems powering our introducing-broker and partner program. This connector is the source of truth for moving trading and account data out of MetaTrader 5 and into the services that calculate and present partner activity, so its correctness, latency, and resilience directly shape what partners see and how they are rewarded. When this layer is reliable, the rest of the partner experience simply works; when it is not, the impact is immediate and visible, which is why this is a senior, ownership-heavy role.

Day to day you will design, build, and harden .NET/C# services that synchronise data between MetaTrader 5 and our backend, expose it cleanly to the partner platform, and stay healthy under production load. You will work closely with a primarily Java microservices backend team, agreeing on contracts and integration patterns across language boundaries, and partner with product and operations to keep data flows accurate and observable. You will work remotely within a focused product team and be expected to lead technically on everything connector-related, from design through production support. Beyond the connector, you will also extend our Power Platform (Dataverse) CRM with custom C# plugins, applying your .NET skills across both the trading-integration and CRM sides of the platform.

Key Responsibilities

Build and Own the Integration Connector

• Design and maintain .NET/C# services that synchronise trading and account data between MetaTrader 5 and backend systems
• Keep data flows accurate, idempotent, and consistent across sources, handling reconciliation and replay where needed
• Expose clean, well-versioned interfaces so the partner platform can consume trading and account data reliably
• Own the connector end to end, from design and implementation through deployment and production support

Reliability and Resilient Processing

• Engineer for production load with backpressure, retries, timeouts, and graceful degradation
• Implement asynchronous and message-based processing that recovers cleanly from failures and partial outages
• Establish safeguards against data loss, duplication, and drift between MetaTrader 5 and downstream systems
• Diagnose and resolve production incidents, then close gaps with durable fixes and follow-up improvements

Observability and Operations

• Instrument services with metrics, structured logging, and tracing so behaviour is transparent in production
• Define meaningful alerts and dashboards that surface integration health before users feel the impact
• Track latency, throughput, and error budgets, and act on the signals they reveal

Power Platform / Dataverse Plugins

• Build and maintain custom C# plugins for our Power Platform (Dataverse / PowerApps) CRM — server-side business logic, validation, and automation triggered by CRM events
• Integrate the CRM with trading, partner, and payment data so records stay accurate and actionable
• Package, register, and version plugin assemblies and support them to production with the same reliability bar as the connector

Cross-Team Integration and Quality

• Collaborate with a primarily Java backend team to agree on contracts, integration patterns, and data ownership
• Align on REST and messaging conventions that work cleanly across .NET and Java services
• Uphold engineering quality through tests, code review, and CI/CD pipelines
• Document integration behaviour and operational runbooks for the wider team

Required Experience & Skills

• Strong professional experience building production services in .NET / C# (modern .NET)
• Experience building C# plugins for Microsoft Power Platform / Dataverse (PowerApps), or strong server-side C# experience with the readiness to own Dataverse plugin development
• Proven track record designing and operating system-to-system integrations and connectors
• Depth in integration patterns using REST APIs and/or message-based, event-driven processing
• Solid SQL and relational database skills, including modelling for synchronisation and reconciliation
• Hands-on experience with asynchronous and reliable processing: retries, idempotency, backpressure, and failure recovery
• Demonstrated ownership of reliability and observability in production, using metrics, logging, and tracing
• Experience running services on AWS as the primary cloud, including containerised workloads
• Comfort collaborating across language boundaries with a primarily Java backend team
• Strong debugging and incident-resolution skills under production conditions
• Senior-level judgement on design trade-offs, with the autonomy to own a component end to end

Nice to Have

• Experience with the MetaTrader 5 Manager / Gateway API
• Hands-on experience administering or managing a Power Platform / PowerApps (Dataverse) CRM — solutions, model-driven apps, security roles, and Power Automate flows — is a strong plus
• Background in trading, brokerage, or CFD/FX fintech
• Experience integrating .NET services with Java microservices in production
• Familiarity with Docker and Kubernetes for packaging and running services
• Working knowledge of observability tooling such as Grafana, Prometheus, or CloudWatch
• Exposure to infrastructure as code with Terraform
• Experience with CI/CD pipelines and Git-based workflows
• Familiarity with introducing-broker or partner / affiliate program domains

We are looking for a Technical Lead / Lead Backend Developer (.NET) to join our growing team, working on a long-term engagement on an enterprise SaaS project specializing in Microsoft 365 governance.

DARLY SOLUTIONS is an international software development company delivering custom solutions across FinTech, MedTech, SaaS, AI, and other industries. Since 2018, we've successfully delivered 250+ projects for clients worldwide. 

Requirements:

• Strong backend engineering background in .NET / C#
• Proven leadership / team lead experience - able to guide and support a team of senior developers, not just strong individual technical skills
• Real, hands-on experience with the Microsoft ecosystem: Microsoft 365, Microsoft Graph, SharePoint, Microsoft Teams, Azure
• Experience working with GitHub-based workflows
• Experience building or maintaining complex B2B SaaS platforms
• Strong sense of responsibility and proactivity
• Comfortable working directly with engineering leadership on the project side
• Open-minded and receptive to feedback, collaborative and non-defensive in working style
• B2 English 
   

Your key accountabilities and responsibilities will include:

• Lead and mentor a team of 2 senior backend developers
• Structure and prioritize backend engineering work, review technical decisions and architecture
• Act as the main technical point of contact for the project's Head of Engineering / Engineering Manager
• Drive backend development for complex B2B SaaS features: API integrations, automation, rule-based systems, admin dashboards, analytics/reporting, access control and audit logging
• Contribute hands-on to backend development as needed
• Help the team integrate smoothly into the project's existing engineering workflow and product development process
• Communicate progress, risks, and technical decisions clearly to project stakeholders

Will be a plus:

• Experience with SharePoint or Teams customizations and compliance/governance tooling
• Experience working in outsourcing/outstaffing engagements with European clients
   

If you have what we are looking for and would love to join our Darly team, we want to hear from you!

We are looking for an experienced .NET Engineer to join our team and work on a healthcare research portal, following best Agile practices (two-week sprints, code review, daily standups).

You'll design, build, and own backend services on a modern .NET 10 stack running in Azure, working across the full lifecycle — from architecture and design through implementation, deployment, and production support. This is a hands-on role: you'll spend most of your time writing and reviewing code, but you'll also shape technical decisions, drive best practices, mentor other engineers, and partner closely with product, architecture, and other engineering teams.

About the Project

The project we are working on is a web-based application with over 25,000 current users, developed for the entire research community to review, monitor, and manage research portfolios. The main goal of the project is to unite distributed and complex organizational processes into one application and help alleviate administrative burdens.

A key focus of this role is modernizing this complex enterprise system — updating its architecture, platform, and data foundations to make it AI-ready and enable future AI-driven capabilities.

Requirements:

• 5+ years of professional software engineering experience, with strong proficiency in C# and the .NET platform (.NET Core / .NET 5+; .NET 10 a plus).
• Deep experience building backend services with ASP.NET Core.
• Strong SQL Server skills: schema design, complex queries, and query performance tuning. Experience with Azure SQL Managed Instance is a strong plus.
• Hands-on experience deploying and operating applications on Microsoft Azure.
• Solid grasp of asynchronous programming (async/await), dependency injection, and the ASP.NET Core request pipeline.
• Experience with Entity Framework Core, including migrations and performance tuning.
• English — Upper Intermediate or above
  
   

Will be a plus:

• Frontend or full-stack experience with React (a strong plus); experience with Blazor or Angular is also welcome.
• Observability: structured logging, distributed tracing, and metrics.

Responsibilities:

• Design, architect, and implement high-performance, scalable, and secure enterprise applications using the modern .NET ecosystem (e.g., .NET 8/10, ASP.NET Core).
• Architect and optimize database schemas, write complex queries, and manage data persistence using SQL Server, alongside ORMs like Entity Framework Core
• Establish development patterns and standards that enable AI empowered development across the platform.
• Lead and participate in rigorous peer code reviews to ensure adherence to coding standards, security protocols, and best practices
• Coach, mentor, and guide junior and mid-level developers, fostering a culture of continuous learning and technical growth within the team.
• Collaborate closely with Product Owners, Business Analysts, Scrum Masters, and UI/UX designers to translate complex business requirements into clear technical specifications
• Serve as an escalation point for complex production issues; perform root-cause analysis and implement long-term stability fixes.
• Set up and monitor system health, logging, and observability metrics using tools like Application Insights, ELK stack, Datadog, or Prometheus.

Наш клієнт, Growe, провідна консалтингова компанія та група сервісів у сфері iGaming і розваг. Вони створюють стратегії, що працюють, та рішення, які масштабуються. Поєднуючи стратегічне бачення з практичним досвідом, Growe допомагає бізнесам орієнтуватися в динамічній індустрії, відкривати нові можливості, виходити на нові ринки та досягати сталого зростання.

Ідеально для тих, хто прагне:

• Писати чистий, читабельний код;
• Виконувати як прості, так і складні ініціативи;
• Брати відповідальність за отримані завдання;
• Координувати взаємодію між командами в межах робочих задач.

Досвід, який стане твоєю перевагою:

• 4+ роки досвіду з .NET (C#) у продакшн-системах;
• Сильний досвід роботи з ASP.NET Core Web API та проєктування RESTful API;
• Глибоке розуміння HTTP (таймаути, повторні спроби, ідемпотентність, статус-коди);
• Досвід інтеграції із зовнішніми API;
• Вміння проєктувати інтеграційні шари та модульні системи (clean architecture / onion / прагматичне шарування);
• Глибоке розуміння мікросервісів та архітектури розподілених систем;
• Досвід асинхронної взаємодії та event-driven архітектури;
• Ґрунтовні знання реляційних баз даних (SQL, транзакції, індекси, оптимізація продуктивності);
• Досвід написання unit- та integration-тестів;
• Розуміння автентифікації та авторизації (OAuth 2.0, OpenID Connect).

Ми цінуємо:

• Відповідальність за результат;
• Сильні навички міжкомандної взаємодії;
• Проактивний та відповідальний підхід до роботи;
• Мислення та комунікація на рівні senior-спеціаліста.

Наші клієнти пропонують конкурентні переваги для підтримки вашого професійного та особистого зростання, зокрема:

• Орієнтація на здоров’я та добробут;
• Глобальне медичне страхування;
• Можливості для зростання;
• Програми бенефітів (компенсація спорту / стоматології / психолога тощо);
• Бонуси за досягнення результатів;
• Динамічне робоче середовище.

Долучайся — і нехай твоя історія зростання розпочнеться.

English version

Our client, Growe, is a leading business advisory and services group in iGaming and Entertainment. Сreators of strategies that work and solutions that scale. Combining strategic vision with hands-on expertise, Growe helps businesses navigate the fast-evolving industry, seize new opportunities, enter new markets, and achieve sustainable growth.

Perfect for those who aim to:

• Write clean, readable code;
• Execute both trivial and non-trivial initiatives;
• Take ownership of the received initiative;
• Coordinate cross-team interactions within the framework of task work.

Experience you’ll need to bring:

• 4+ years with .NET (C#) in production systems;
• Strong experience with ASP.NET Core Web API and RESTful API design;
• Strong understanding of HTTP semantics (timeouts, retries, idempotency, status codes);
• Experience with external API integration;
• Ability to design integration layers & modular systems (clean architecture / onion / pragmatic layering);
• Deep understanding of microservices and distributed systems architecture;
• Experience with asynchronous communication and event-driven architecture;
• In-depth knowledge of relational databases (SQL, transactions, indexing, performance tuning);
• Experience writing unit and integration tests;
• Understanding of authentication and authorization (OAuth 2.0, OpenID Connect).

It’s a perfect match if you have those personal features:

• Ownership and accountability;
• Strong cross-team collaboration skills;
• Proactive and responsible approach to work;
• Senior-level mindset in decision-making and communication.

Our clients offer competitive benefits to support your professional and personal growth, including:

• Health & Wellness Focus;
• Global Medical Coverage;
• Growth Opportunities;
• Benefits Programs (compensation for the gym/stomatology/psychological service & etc.);
• Performance-Driven Rewards;
• Dynamic Work Environment.

Apply, and let your growth journey begin.

Our client is a US-based remote-online-learning provider serving students through live digital instruction and operational student-support workflows. Together with Nucleus AI, the client is building the CCA Wellness Check Compliance Platform — a focused internal system for recording, tracking, and proving weekly student wellness checks.

The platform is designed to solve a concrete compliance and operations problem: the school needs a reliable way to confirm that weekly student wellness checks happened, maintain an auditable record, identify students who were not seen, and support escalation workflows when follow-up is required.

The MVP is time-sensitive and must be production-ready before the August teacher training window and September operational launch.

You’ll join a delivery team building a practical compliance platform from the ground up, working closely with product, engineering, QA, delivery, and client stakeholders.

Responsibilities

Fullstack Product Development

• Build and maintain end-to-end product features across backend services and frontend application layers.
• Work with frontend frameworks such as React, Angular, or Blazor to deliver user-facing functionality.
• Integrate frontend applications with backend APIs and ensure smooth client-server communication.
• Debug issues across the full application stack, including frontend behavior, API contracts, backend logic, database interactions, and deployment environments.
• Collaborate with product, design, frontend, backend, and AI/ML teams to translate requirements into working product features.
• Ensure frontend and backend changes are aligned, tested, and production-ready.

Backend Development & Architecture

• Design and build scalable backend services using .NET Core / .NET Framework.
• Develop RESTful APIs and microservices using ASP.NET Core.
• Apply clean architecture principles and enforce coding standards.
• Ensure systems are performant, secure, and maintainable.

Cloud & Infrastructure

• Build and operate services on Microsoft Azure, including App Services, Functions, Azure SQL, and AKS.
• Implement CI/CD pipelines using Azure DevOps or GitHub Actions.
• Work with containerized environments such as Docker and Kubernetes.
• Ensure system reliability, monitoring, and disaster recovery strategies.

Code Quality & Performance

• Conduct code reviews and enforce best practices across backend and frontend codebases.
• Implement unit, integration, and end-to-end testing where appropriate.
• Monitor, profile, and optimize system performance across application layers.

Security & Compliance

• Implement secure authentication and authorization using OAuth, JWT, or similar approaches.
• Follow OWASP best practices.
• Ensure data protection and system integrity.

Documentation & Improvement

• Document technical decisions, API contracts, system behavior, and development workflows.
• Continuously improve system design and development workflows.
• Stay current with .NET, frontend, and cloud ecosystem developments.

Requirements

• 5+ years of professional engineering experience, with strong commercial experience in .NET / C#.
• Strong experience with ASP.NET Core, Web API, Entity Framework, and SQL Server.
• Hands-on frontend experience with React, Angular, Blazor, or a comparable modern frontend framework.
• Ability to build fullstack features from database and backend logic through API design and frontend implementation.
• Experience integrating frontend applications with REST APIs and debugging client-server issues.
• Hands-on experience with Microsoft Azure.
• Experience with CI/CD pipelines and Git.
• Experience with Docker and Kubernetes.
• Strong understanding of SDLC, SOLID, and design patterns.
• Experience with unit testing frameworks such as xUnit, NUnit, or MSTest.
• Ability to debug and resolve complex issues across the full application stack.
• Strong communication skills and ability to work closely with cross-functional teams.
   

Nice to Have

• Experience with React or AngularJS.
• Experience with messaging systems such as RabbitMQ, Kafka, or Azure Service Bus.
• Familiarity with NoSQL databases such as Cosmos DB or MongoDB.
• Azure certifications.
• Experience in LMS, edtech, legal-tech, fintech, or data-heavy platforms.
• Experience working with AI-assisted systems, AI/ML integrations, or data-driven product features.

What Matters for This Role

• Ownership mindset — ability to take responsibility for features and systems end-to-end.
• Strong backend engineering foundation combined with practical frontend delivery skills.
• Comfort working in ambiguous, fast-moving environments.
• Strong engineering judgment and pragmatic decision-making.
• Ability to collaborate across backend, frontend, cloud, product, and AI/ML teams.

Hello! 
 

We are looking for an experienced Senior .NET Developer to take ownership of our OMS (Order Management System), Hub API infrastructure, and core backend services supporting mission-critical trading operations.

Responsibilities

• Develop, maintain, and improve backend services using C# and .NET.
• Support and evolve OMS, Hub API infrastructure, and related backend systems.
• Design scalable, high-availability APIs and distributed services.
• Manage AWS infrastructure, Docker environments, and deployment processes.
• Troubleshoot production issues and implement long-term solutions.
• Improve monitoring, logging, alerting, and system observability.
• Support broker, exchange, market data, and third-party integrations.
• Participate in architecture discussions, code reviews, and technical decision-making.

• Mentor team members and contribute to engineering best practices.

   

Requirements

• 8+ years of professional software engineering experience.
• 5+ years of experience designing, maintaining, and supporting large-scale production systems.
• Expert-level C# and ASP.NET experience.
• Deep understanding of distributed systems architecture.
• Strong AWS infrastructure experience.
• Strong Docker experience.
• Experience with Redis and high-performance caching systems.
• Experience designing REST APIs and service-oriented architectures.
• Experience with CI/CD pipelines and deployment automation.
• Experience supporting systems with strict uptime and reliability requirements.
• Experience leading technical design decisions and architectural reviews.
• Experience conducting code reviews and enforcing engineering standards.
• Strong troubleshooting, debugging, and production support skills.
• Strong communication, organizational, and problem-solving abilities.

• High level of ownership, accountability, and proactive decision-making.

   

Nice to Have

• Trading platform experience.
• OMS experience.
• Broker connectivity experience.
• Market data infrastructure experience.
• Financial technology experience.
• Real-time messaging systems experience.
• Multi-threaded and low-latency systems experience.
• Exchange connectivity experience.
• Experience working with algorithmic trading systems.

• Experience supporting mission-critical financial infrastructure.

   

Work Environment

• Fully remote, full-time position.
• Working hours aligned with U.S. Eastern Time.
• Fast-paced environment with significant technical ownership and responsibility.
   

Inviting Senior .NET Software Engineer to join a growing account in the medical devices industry domain. Our client is the global leader company of healthcare solutions, which contributes to human welfare by application of biomedical engineering in the research, design, manufacture, and sale of instruments or appliances that alleviate pain, restore health, and extend life for people around the world.

Our team is focusing on designing, developing, and testing embedded software for medical devices, where the software has strong restrictions for safety and quality, power management, and memory usage. Project for this position intends to extend medical device capabilities with PC application that will serve cloud services connectivity for existing device.

Job Description

• 4+ years of experience in C# application development
• Experience with AWS / Azure microservices and contenerisation
• Nice to have experience in Windows standalone appplication development
• Services integration experiences
• Upper-Intermediate English (be able to communicate with the client)
• Good communication skills
   

Job Responsibilities

• Design and development of standalone application that connects and uses AWS & Azure based services
• Develop AWS services
• Coopeare on architecture design
• Participate in new features implementation
• Communicate with the client

On behalf of our Client from France, Mobilunity is looking for .Net Engineer.
 

Our client is a table management software and CRM that enables restaurant owners to welcome their customers easily. The app is useful to manage booking requests and register new bookings. You can view all your bookings, day after day, wherever you are and optimize your restaurant’s occupation rate. Our client offers a commission-free booking solution that guarantees freedom above all. New technologies thus become the restaurateurs best allies for saving time and gaining customers while ensuring a direct relationship with them.
 

What you will do:

• Performance and stability work: Identify and resolve issues currently degrading the platform — missing or wrong SQL indexes on hot tables, N+1 Cosmos queries, EF Core query plans that fall off the optimiser, queue back-pressure, retry storms.
• Incident response: Act as the escalation point for the product support and dev team. Diagnose and fix issues spanning bookings, widgets, payments (Mollie / Bancontact / iDEAL), webhooks, SignalR notifications, Cosmos DB content, and SQL Server data.
• Production stewardship: Plan and execute releases to production, typically out of customer hours (releases usually go out late evening or around 2 a.m. CET to minimise blast radius). Own rollback strategies and smoke tests.
• Platform upgrade: Plan and execute upgrades to .NET, key NuGet packages (including private feeds), Azure services, and third-party integrations — without disrupting production.
• Targeted feature development: Pick up scoped backend features and changes and ship them safely.
• Internal tooling: Maintain and extend admin site
• Knowledge transfer: We want this role to actively reduce single-point-of-failure risk. You’ll pair with internal engineers, walk them through the system as you fix things, and leave behind enough context — in code comments, PR descriptions, short notes — that the platform is operable when you’re on holiday.
   

Tech Stack:

• .NET / C# (modern versions), Entity Framework Core, ASP.NET Web APIs
• Azure — App Service, Functions, SignalR Service, Service Bus / queues, Application Insights
• SQL Server (Azure SQL) with EF Core, plus direct query and index tuning
• Cosmos DB
• GitHub (Actions, private NuGet feeds), pre-prod and prod environments
• Mollie payments (Bancontact, iDEAL, cards) and other third-party integrations
   

Requirements:

• Deep Azure production ownership — ideally 8+ years where both the application layer and the cloud infrastructure are your domain. Azure is not a deployment target here — it’s part of the system you own.
• Strong DBA instincts. You can read an execution plan, recognise when EF Core is generating something the optimiser can’t use, and design indexes that match access patterns.
• Azure platform depth. Hands-on production experience with App Service / AKS, Azure SQL, Cosmos DB, Service Bus, Application Insights, and Key Vault. You know how to right-size resources, contain costs, and respond to platform-level incidents — not just application-level ones.
• Production maturity. Comfortable owning overnight releases, rollback plans, and the weight of a system where mistakes affect real restaurants in the morning service.
• Diagnostic mindset. At home in Application Insights, SQL DMVs, Cosmos metrics, and logs. Able to find root causes in a codebase you didn’t write, with significant historical complexity.
• Genuine AI-assisted developer. You use Claude Code, Cursor, Copilot, or equivalent daily — not occasionally. You know where the guardrails matter in a complex codebase, and you bring that judgment, not just the tool.
• Communication. Clear written English, transparent about risk, comfortable explaining technical trade-offs to non-technical stakeholders.
• Upper-intermediate to advanced English proficiency
   

Nice to have:

• Experience with restaurant tech, reservation systems, or any high-concurrency consumer-facing platform with payment flows.
• Experience leading the stabilisation or modernisation of a legacy .NET codebase.
• Familiarity with Mollie or similar PSPs and EU payment methods (Bancontact, iDEAL, SEPA).
   

In return we offer:

• The friendliest community of like-minded IT-people
• Open knowledge-sharing environment – exclusive access to a rich pool of colleagues willing to share their endless insights into the broadest variety of modern technologies
• Mobilunity Medical Insurance program designed to attend our teams’ needs
• Paid vacations and sick leaves, including 5 paid days per year that don’t require a sick note
• Perfect office location in the city-center (900m from Lukyanivska metro station with a green and spacious neighborhood) or remote mode engagement: you can choose a convenient one for you, with a possibility to fit together both
• No open-spaces setup – separate rooms for every team’s comfort and multiple lounge and gaming zones
• English classes in 1-to-1 & group modes with elements of gamification
• Neverending fun: sports events, tournaments, music band, multiple affinity groups
   

Come on board, and let’s grow together!

Are you a Senior Full-Stack Developer looking to work on impactful projects in the automotive industry? Join Sigma Software and contribute to cutting-edge solutions that help prevent production faults before they happen.

This is a Senior role with a Remote work format, offering full-time engagement and direct collaboration with Customer teams. At Sigma Software, we value innovation, ownership, and engineering excellence — and we’ve been delivering high-quality solutions for over 20 years.

Why join us? You’ll work with a modern tech stack, cloud-native environments, and AI-assisted development tools, all while contributing to solutions that make a real difference in production quality.
 

CUSTOMER
Our Customer is a well-known German automotive manufacturer with a global presence and a strong reputation for innovation, quality, and engineering excellence. Sigma Software has been collaborating with this Customer for over five years, delivering high-impact software solutions that support their production processes and operational efficiency.
 

PROJECT
The engagement involves three interconnected web-based solutions. The primary system aggregates data from multiple Customer systems, processes it, and transforms it into actionable insights. This data — covering organizational, technical, and operational aspects — is used preventively to detect and address potential faults in automotive production lines. In case of a fault, the system provides detailed information to facilitate root cause analysis.

Responsibilities 

• Work directly with Customer engineering and product teams to understand business needs, clarify requirements, and propose effective technical solutions
• Take ownership of end-to-end feature delivery from technical analysis and design to implementation, testing, and production support
• Design, develop, and maintain high-quality full-stack solutions using .NET, React.js, and cloud technologies
• Participate in architecture discussions, technical decision-making, and delivery planning
• Identify and recommend technical improvements, risk mitigation strategies, and optimization opportunities
• Develop scalable, reliable, and maintainable applications following engineering best practices
• Work with containerized environments and Kubernetes-based deployments
• Apply AI-assisted development approaches to improve productivity and code quality
• Collaborate closely with distributed teams (developers, QA, product owners, architects)
• Contribute to code reviews, technical documentation, and knowledge sharing
• Maintain transparent communication and strong alignment with Customer expectations

Requirements

• At least 5 years of professional software development experience
• Strong hands-on expertise with .NET / C# and modern web technologies
• Proven background in complex business domains and large-scale enterprise applications
• Solid experience with ASP.NET Core / Web API, Entity Framework Core, database design, and optimization
• Strong front-end skills with React.js, Redux, Material UI, TypeScript, and modern JavaScript practices
• Practical experience with cloud platforms (AWS, Azure, GCP)
• Knowledge of CI/CD processes, automated delivery pipelines, and code quality practices
• Experience working with containerized environments and Kubernetes
• Familiarity with AI-assisted development tools and practices
• Good understanding of software architecture principles, design patterns, and clean code
• Experience working in Agile teams

• Upper-Intermediate English level or higher

   

Personal profile

• Proactive, ownership-driven, and capable of working independently
• Strong analytical and problem-solving skills
• Comfortable collaborating with distributed, cross-functional teams
• Adaptable to changing requirements and priorities

Description

Our Client is a major provider of software and framework solutions for clinical trials for Pharma Companies. Many years of experience on the market and proprietary techniques and approaches allow for building cutting-edge solutions, which mitigate the trial risks and increase the potential and the success of the study results

Requirements

1. 5+ years of commercial experience working with primary technology stack: .NET Framework / .NET Core and Angular
2. Experience in database design and elaboration for complex systems
3. Experience in the development of scalable web applications. Practice in web application deployment
4. Solid understanding of the design and architectural patterns
5. Upper-Intermediate level of written and spoken English
6. Experience with Azure infrastructure will be a plus

Job responsibilities

1. Implement new features, unit tests, automated integration tests for the complex healthcare system
2. Participate in estimation and planning sessions
3. Investigate different complexity issues and debug code
4. Research architecture solutions for new features and refactoring of existing ones
5. Mentor and guide junior grades
6. Business communication and close collaboration with customer on a daily basis
7. Build work around the principles of the multicultural distributed team

About Us

We are a US-founded early stage start-up with an R&D team located in Europe. Our mission is to make learning accessible, relevant, and individualized to keep up with the changing world. We are developing a personalized virtual trainer experience, integrating generative AI and learning engineering to build a VR simulator for immersive hands-on skills training. Our learning engineering approach customizes content and feedback in real-time, directly improving learning outcomes.

We're looking for a Senior Unity engineer to help build the client-side infrastructure of our training platform. This is not just one-off application work. You will build the client foundation that powers VR training simulations today, and additional client targets over time, connecting it to our server according to a defined client-server architecture. The role demands strong application architecture, on-device services, and performance optimization skills.

The Role

This is a hands-on individual contributor role focused on building and evolving key components of our platform's client-side architecture. You will build client infrastructure against a defined server-client architecture in which the server owns authoritative simulation state and logic, connecting the client to the server per spec and reflecting server-owned behavior faithfully on the device.

Key Responsibilities

• Own and drive key components of the Unity VR client architecture so they generalize across training simulations and, over time, additional client targets, rather than serving a single application.
• Build client-side infrastructure that connects to the server according to defined contracts and reflects server-owned state and behavior on the device.
• Co-design the client-server API with the backend, defining the data contracts.
• Develop tooling that supports content creators and other developers working on the platform.
• Use AI coding assistants as part of day-to-day development, and build and maintain the pipelines and validation that make their output reliable.
• Make pragmatic architectural decisions and manage technical priorities effectively in a fast-paced, ambiguous startup environment.

Requirements

• Demonstrated professional Unity and C# experience, ideally 5+ years, with a track record of shipping complex applications or products.
• A portfolio demonstrating experience architecting and refactoring large-scale Unity projects.
• Direct experience building for VR, in particular Meta Quest.
• A track record of building generic, reusable infrastructure and frameworks, not just one-off features.
• Comfort working within a defined client-server architecture and with established API contracts.
• A proactive and adaptable mindset suited for the dynamic and evolving environment of an early-stage startup.
• Excellent communication and collaboration skills in English, with experience working effectively in a remote, culturally diverse team.
• A genuine interest in using technology to enhance learning and education.

Nice To Have

• Experience targeting additional client platforms such as WebGL.
• Experience with data-driven or reactive component systems.

What We Offer

• A high-ownership role with direct influence on product direction, architecture, and user experience, and on company culture.
• A senior opportunity to build a platform from the ground up and contribute to its growth and commercialization.
• The flexibility of a fully remote position, with working hours flexible across European time zones rather than tied to US hours.

About Us

We are a US-founded early stage start-up with an R&D team located in Europe. Our mission is to make learning accessible, relevant, and individualized to keep up with the changing world. We are developing a personalized virtual trainer experience, integrating generative AI and learning engineering to build a VR simulator for immersive hands-on skills training. Our learning engineering approach customizes content and feedback in real-time, directly improving learning outcomes.

We're looking for a Senior Unity engineer to help build the client-side infrastructure of our training platform. This is not just one-off application work. You will build the client foundation that powers VR training simulations today, and additional client targets over time, connecting it to our server according to a defined client-server architecture. The role demands strong application architecture, on-device services, and performance optimization skills.

The Role

This is a hands-on individual contributor role focused on building and evolving key components of our platform's client-side architecture. You will build client infrastructure against a defined server-client architecture in which the server owns authoritative simulation state and logic, connecting the client to the server per spec and reflecting server-owned behavior faithfully on the device.

Key Responsibilities

• Own and drive key components of the Unity VR client architecture so they generalize across training simulations and, over time, additional client targets, rather than serving a single application.
• Build client-side infrastructure that connects to the server according to defined contracts and reflects server-owned state and behavior on the device.
• Co-design the client-server API with the backend, defining the data contracts.
• Develop tooling that supports content creators and other developers working on the platform.
• Use AI coding assistants as part of day-to-day development, and build and maintain the pipelines and validation that make their output reliable.
• Make pragmatic architectural decisions and manage technical priorities effectively in a fast-paced, ambiguous startup environment.

Requirements

• Demonstrated professional Unity and C# experience, ideally 5+ years, with a track record of shipping complex applications or products.
• A portfolio demonstrating experience architecting and refactoring large-scale Unity projects.
• Direct experience building for VR, in particular Meta Quest.
• A track record of building generic, reusable infrastructure and frameworks, not just one-off features.
• Comfort working within a defined client-server architecture and with established API contracts.
• A proactive and adaptable mindset suited for the dynamic and evolving environment of an early-stage startup.
• Excellent communication and collaboration skills in English, with experience working effectively in a remote, culturally diverse team.
• A genuine interest in using technology to enhance learning and education.

Nice To Have

• Experience targeting additional client platforms such as WebGL.
• Experience with data-driven or reactive component systems.

What We Offer

• A high-ownership role with direct influence on product direction, architecture, and user experience, and on company culture.
• A senior opportunity to build a platform from the ground up and contribute to its growth and commercialization.
• The flexibility of a fully remote position, with working hours flexible across European time zones rather than tied to US hours.

Infozahyst is a Ukrainian scientific and production center that has been developing software and hardware solutions for Ukraine’s security and defense forces for over 20 years.
We are engineers, analysts, and researchers united by a common goal: to create technologies that ensure Ukraine’s security.

Requirements: 
• DSP fundamentals: FFT, windowing, FIR / IIR filtering, spectral analysis, I/Q data.
• Radio engineering and SDR: modulation types, channel and noise models, baseband vs passband,
link-budget analysis, SDR architecture and sample-streaming interfaces.
• 8+ years of professional C# / .NET, 4+ years in a Senior, Tech Lead or Architect role with cross-team
scope.
• Deep knowledge of the CLR (memory model, GC, JIT, allocation patterns, finalization) and core C#
(generics, LINQ, expression trees, async/await internals, synchronization contexts, etc).
• Working knowledge of modern C# (8+): pattern matching, nullable reference types, records,
switch expressions, etc.
• Practical experience with .NET Framework → modern .NET migrations.
• Strong expertise in WPF (MVVM) and data-intensive desktop applications: virtualization, binding
cost, Freezable, Dispatcher patterns, custom controls and ControlTemplate, high-DPI and screen
scaling, UI Automation.
• Solid experience with multithreading: TPL, TPL Dataflow, synchronization primitives, lock-free
patterns, ThreadPool tuning.
• Experience building applications that process real-time streaming data from devices, sensors, or
network endpoints.
• Solid understanding of network programming: TCP/UDP, binary protocols, framing, backpressure,
reconnect logic.
• Hands-on experience with low-allocation patterns and SIMD in .NET: Span<T>, Memory<T>,
ArrayPool<T>, System.Numerics.Vector<T>, hardware intrinsics.
• Strong database skills: MS SQL Server, T-SQL, execution-plan analysis, EF Core, Dapper.
• Strong grasp of software design and architectural review: SOLID, GRASP, DDD, separation of
concerns, clean architecture, design patterns, focus on maintainability, testability, performance.
• Solid foundation in algorithms and data structures: big-O notation, collections trade-offs, graph
and dynamic-programming techniques where applicable to signal-processing tasks.
• Experience with profiling and diagnostics: dotTrace, dotMemory, Visual Studio Profiler, ETW /
PerfView, BenchmarkDotNet.
• Hands-on experience with unit / integration testing (including TestContainers), CI/CD pipelines,
quality gates.
• Proficient with Git and modern branching / code-review practices.
• Track record of horizontal expert work: setting standards, cross-team reviews, mentorship,
ownership of domain artifacts (competency matrix, tech radar, coding standards, lessons learned,
etc).
• Experience as an independent technical evaluator in hiring and Performance Review.
• Excellent communication and mentoring, able to defend technical positions in writing and in
discussion.
• English: B2 or higher.

Preferred Skills:

• GPGPU (CUDA, OpenCL, ILGPU) for signal-processing workloads.
• Native interop in .NET: P/Invoke and C++/CLI for performance-critical code and hardware
integration.
• Public technical activity: articles, conference talks, open-source contributions, etc.
• Agile (Scrum / Kanban) with release-based planning.

Key Responsibilities:

• Co-own the .NET competency matrix and domain tech radar with the Head of Engineering
Excellence Center.
• Author coding standards, review templates, checklists and reference solutions contributing deep
cross-domain expertise.
• Build and run internal enablement: lectures, workshops, mentorship.
• Provide expert consultation and architectural review across projects.
• Drive root-cause analysis of complex defects across .NET projects.
• Define release-readiness criteria within the domain.
• Design and run technical interviews, calibrate ratings across interviewers.
• Act as independent technical evaluator in Performance Review, support IDP design.
• Support pre-sale (assumptions, risks, recommendations), contribute to Project Brief and Project
Cost without owning delivery.
• Surface project problems suitable for a research track and hand them to the Head of Research
Programs.
• Represent the domain externally (articles, talks, meetups, recruiting brand, etc).

Benefits:

• Employment in a stable and reliable company;
• Working remotely, but available to visit office in Kyiv once a month;
• Competitive salary;
• A 5-day work week with an 8-hour workday within the 9:00–20:00 time window;
• Support for personal and professional growth, including opportunities for training and reimbursement of its cost;
• Care for employee health through medical insurance, 18 working days of paid vacation, and sick leave coverage;
• Openness to new ideas and approaches, with healthy communication within the team;
• Unique and exciting projects;
• Involvement in a mission that brings us closer to victory!

Dear candidates, we will review your resume within 10 business days, and if the decision is positive, we will definitely contact you. If you do not receive feedback from us, it means that we are not ready to offer you this position at the moment.

Get to know us

Ideals is a global B2B SaaS product company recognized as the most highly rated and customer-centric brand in the secure business collaboration market. Trusted by over 2,000,000 users from 300,000 companies globally, we help people run high-stakes processes and make important decisions with less stress, higher quality, and shorter hours.

Ideals Virtual Data Room (VDR): Secure document sharing and collaboration for due diligence, fundraising, corporate reporting, licensing, clinical trials, and other complex transactions.

Ideals Board: Board and leadership collaboration platform for faster, safer, and more compliant decision-making.

The role

Ideals is an international B2B SaaS company building a leading Virtual Data Room (VDR) platform used globally for highly sensitive data exchange, including M&A, fundraising, legal, financial, and other business-critical processes.

Our Engineering organization comprises approximately 70 professionals across 9 cross-functional Agile teams. Each team owns a specific part of the product and consists of developers, QA engineers, a product manager, a designer, and an Engineering manager. Together they work on delivering meaningful improvements for our users.

We are looking for a Senior Backend Engineer (.NET) to join one of our teams working on the Ideals Virtual Data Room platform.

Our product provides an industry-leading user experience and already includes AI features across multiple areas, each owned by dedicated engineering teams. We continue to explore how AI can improve or even completely change user experience, document workflows, and engineering productivity.

To enhance engineering productivity and focus on high-impact challenges, we provide company-paid enterprise subscriptions to leading AI models. This allows our engineers to select the best vendors to accelerate routine work, improve code quality, and explore innovative solutions. We actively encourage integrating these tools into daily workflows to keep our focus on complex engineering tasks.

Tech stack: .NET Framework 4.7, .NET 8+, ASP.NET Core, Entity Framework, Web API, PostgreSQL, AWS, Docker/Kubernetes, ArgoCD, Git.

What you will do

• Participate in all phases of the SDLC as part of a cross-functional product team. This includes, but is not limited to, requirements analysis, design, implementation, testing (unit, integration, and service tests), building, deployment, and operation of new product increments, handling change requests, defect resolution, spikes, and proof-of-concepts
• Ensure high-quality solutions by maintaining acceptable test coverage aligned with the Definition of Done criteria
• Be a proactive team player, contributing actively to the group’s efforts to complete tasks and achieve goals
• Adhere to and drive modern software engineering practices through design reviews
• Engage in mentorship and knowledge sharing within the team and the Engineering organization

What you bring

• Over 5 years of commercial experience in backend development using .NET Framework and .NET 6+
• B2 level proficiency in English, both spoken and written
• Solid understanding of the SDLC, along with software design and architecture principles
• Expertise in writing both unit and integration tests while ensuring that best practices for testing are integrated into every phase of development
• Expertise in API design principles, with a solid understanding of REST, RPC, including security considerations
• Experience with relational databases (preferably MS SQL Server / PostgreSQL)
• Familiarity with cloud platforms (AWS is preferred)
• Product-focused approach, consistently striving to create value for users
• Strong sense of ownership, taking full responsibility for end-to-end development from design through to production support
• Proactive attitude and a growth mindset, with a strong orientation towards self-development and continuous learning
• Interest in AI-driven solutions, with openness to developing expertise in this area

Nice to have

• Experience in product or SaaS businesses
• Experience with .NET 8
• Experience with AWS (SNS, SQS, S3,EC2,OpenSearch) and Docker/Kubernetes
• Knowledge of security best practices in backend development

Our assessment process

• Screening call with the Talent Acquisition Specialist (45 mins)
• Technical interview and Live coding (2 hours)
• Engineering Competency-based interview with our Engineering Manager (2 hours)
• Interview with the Hiring Manager (60 mins)

What we offer

We highly value our people, so we will empower you with all the resources and support to help you reach your full potential.

For your best work

• Remote-first flexibility to shape your ideal workday
• Home workplace budget
• Resilient home budget for Ukraine-based teammates
• Resilient office in Kyiv & co-working expense coverage
• Individual IT budget for extra equipment
• Top-tier tech and AI-powered tools

For your growth

• Access to Ideals Academy with numerous courses
• Investment in external learning and development activities
• Guidance in Personal Development Plan creation
• Professional literature and subscriptions coverage
• Support of your passion as a speaker or writer
• Internal talent mobility opportunities

For your well-being

• Medical insurance and Wellness Package for sports activities
• Full coverage of mental health sessions for Ukrainian teammates
• Funding for sports competitions
• 20 business days of paid time off per year
• Unlimited health-related time-off

Extra perks

• Budget for meetups with your local team
• Generous internal referral program

Our culture

Commitment, Excellence, Collaboration, Trust and Care are core values to the Ideals team. For us, these are the principles that every Idealer lives and breathes. We are on the lookout for like-minded individuals who share our values. By doing so, we create a team where talents feel at ease and work to the best of their abilities.

Discover more.

Ideals is an equal opportunity employer

Ideals is made up of people from a wide variety of backgrounds and lifestyles. We embrace diversity and invite applications from people from all walks of life. We don’t discriminate against employees or applicants based on gender identity or expression, sexual orientation, race, religion, age, national origin, or citizenship.

Who we are  

We are a Ukrainian multiproduct company that creates database development and management tools, connectivity solutions, productivity tools, and data services for more than 500.000 clients from 120 countries. Since 1997, we have been streamlining data workflows for professionals and teams with our intuitive and efficient software products. We're committed to enhancing the experience of our customers across the globe by minimizing data-related tasks and enabling them to focus on more inspiring goals.  

Among our clients, you can find such legends as Microsoft Corporation, Oracle America, IBM, Intel, and many more companies that deserve their place in the Fortune 100 and Fortune 500. Whether it's global companies or individuals, we provide a customer-centric approach, delivering high-quality solutions and exceptional support.  

Driven by passion, we play a substantial role in shaping the future of data management. 

Product that needs your engagement  

Connectivity — An enterprise B2B product at the intersection of AI and corporate data infrastructure. It enables organizations to securely connect modern AI agents and LLM-based assistants to their internal data sources — relational databases, data warehouses, and SaaS systems — while maintaining strict governance, access control, and auditability. The product is deployed on-premise within the customer’s infrastructure, which makes security, compliance, and admin experience first-class concerns alongside end-user value.

Your future team of professionals 

You will be part of the Connectivity team and work with highly motivated professionals who are passionate about the project. You will collaborate with other .NET developers,  Product Owner, QA, and Support team. 

Impact you will make 

Product Management  

• Work closely with stakeholders to document business requirements, define user stories, and contribute to planning and execution  
• Collaborate with team members to ensure seamless implementation of UI/UX functionality, aligning with product vision and user needs  
• Verify requirements provided by a product management team and/or other stakeholders  
• Take part in preparing and prioritization of refactoring plans  
• Provide L3 support for clients (if applicable) 

Project Management  

• Decompose complex tasks into achievable work items  
• Interact with other teams involved in product development to optimize processes  
• Keep sprint workloads in an actual state 

People Management  

• Conduct coaching and mentoring activities to fulfill technical leadership for team members  
• Take part in technical interviews 

Software Development  

• Implement features of any level of complexity  
• Design tests (unit, integration, etc.)  
• Foster high quality standards for software development among team members by applying best practices  
• Conduct research while accepting features for implementation, decompose features into subtasks, providing accurate estimates  
• In collaboration with Head of Engineering and Solution Architect, design and implement architectural solutions within a project  
• Deliver features for testing and provide consultations to QA team during feature verification  
• Conduct code reviews 

Skills we are looking for 

• Deep knowledge and understanding of .NET Framework/.NET Core/.NET and C# 
• Deep knowledge and understanding of OOP and OOD (including SOLID and GoF design patterns)  
• Deep knowledge and understanding of data structures  
• Good algorithmic basis  
• Experience with relational databases and SQL  
• Experience with VCS (Git preferred)  
• Knowledge and understanding of issues lifecycle  
• Knowledge of approaches and methods of task estimation and decomposition  
• Experience with ALM systems (Jira preferred)  
• Experience with knowledge bases (Confluence preferred)  
• Understanding of basic CI/CD principles, experience with CI systems (Jenkins preferred)  
• Understanding of SCRUM principles and values  
• Experience with Entity Framework 
• Experience with ADO.NET  
• Essential experience with WinForms, preferred expirience with DevExpress WinForms components 
• Preferred expirience with SSIS, COM interop, unmanaged code interop 

Benefits you get 

Maintain your work-life balance 

• Take control of your workday with our flexible schedule. 
• 19 days of annual vacation granted on a pro-rata basis. 
• No overtime required. 

Hybrid/remote type of cooperation

Whether you prefer to work remotely in the comfort of your home office or from one of our 4 offices, you can help promote the global visibility of exceptional Ukrainian products from anywhere in the world. 

Stay healthy 

• Comprehensive medical insurance from a leading Ukrainian provider, including a wide range of services and special programs for relatives, and special options for those who live abroad. 
• 15 working days of sick leave per year – because your health is our priority. 

Grow with us 

• In-house English courses to increase your proficiency through our online courses and speaking clubs with a native speaker. 
• Online learning activities, including workshops, lectures, and webinars to enhance your leadership, management, and self-awareness skills. 
• Experience exchange with our team of professionals who eagerly share their deep expertise across various fields. 
• Opportunities for promotions, rotations, and transitions when you believe your skills could benefit a different role or team. 

Stand with Ukraine! 

We have an active pro-Ukrainian position! This means that we help our army, our servicemen, and their families not only through constant donations and volunteering but also through our military leave policy, special health insurance options, and financial assistance. 

We are a perfect match if you share our values 

We are professionals in our field. We know how to turn up our professionalism to the maximum because we are experts who enjoy solving complex tasks. We know how to focus on the product, think big, and, at the same time, delve deep into the details. 

We create a calm and friendly atmosphere within the company. We value the freedom of open and transparent communications. Radical honesty is embedded in the foundation of our culture. 

We are open to new things, constantly evolve, and practice regular knowledge sharing. Most importantly, the company creates an environment where we can fulfill our potential upon a solid foundation. 

Our Hiring process 

• Recruitment interview 
• Technical Interview 
• Offer Call