Jobs C# / .NET

We are looking for an AI Engineer to join a product engineering team focused on introducing LLM-based capabilities into enterprise software and building systems such as MCP servers and agents. The role involves working on AI-driven product features, backend services, and integrations that connect models with tools and data in a scalable production environment.

Location: Serbia (relocation support available), Croatia, Poland, Portugal

Tasks:

• Design and develop AI-powered product features with a focus on LLM-based capabilities;
• Build and maintain MCP servers and agent-based components;
• Develop enterprise-grade web services and backend integrations;
• Work with tools, data sources, and model interfaces across cloud environments;
• Collaborate with engineering teams to deliver production-ready AI solutions.

Requirements:

CORE

• AI Engineer profile with strong SDE background;
• Proficiency in C# or Python;
• Knowledge of Model Context Protocol (MCP) for connecting tools and data into models;
• Experience in developing enterprise-grade web services;
• Experience working with cloud platforms such as Azure, AWS, or GCP.

Nice to have

• Hands-on experience with LLM and RAG engineering, including retrieval design, chunking, vector stores, and structured outputs, using tools such as OpenAI, LangChain, or LlamaIndex;
• Experience in building and orchestrating agentic systems that call tools and reason over retrieved context, using frameworks such as LangGraph or AutoGen, and OpenAI tool calling or the Responses API;
• Familiarity with LLM evaluation and observability tools such as LangSmith or Langfuse;
• Experience with guardrails and security measures such as prompt injection defense and output validation.

On behalf of our client, we are looking for a Senior .NET Developer.

Responsibilities:

- Support and enhance existing .NET applications and internal systems

- Help migrate legacy code repositories from TFS to Git

- Contribute to DevOps / CI/CD pipeline setup and modernization

- Work on integrations between internal systems and third-party platforms

- Write, optimize, and troubleshoot MS SQL / T-SQL queries and stored procedures

- Debug application, data, and integration issues

- Document system logic, data flows, and technical decisions

- Collaborate directly with the client’s internal IT/development team

Requirements:

- 5+ years of commercial software development experience

- Strong experience with C# / ASP.NET / .NET

- Strong experience with MS SQL / T-SQL

- Experience with legacy systems and enterprise integrations

- Practical experience with TFS, Git, CI/CD, or DevOps pipelines

- Good understanding of relational databases and multi-tier application architecture

- Strong communication skills and ability to work independently in a client-managed environment

Nice to Have:

- COBOL.NET

- Java / JavaScript

- SQL Reporting Services / SSRS

- Insurance, fintech, or regulated industry experience

- Experience modernizing legacy enterprise systems

Company offers:

- Long-term employment with possibilities for professional growth

- Fully remote work

- Reasonably flexible schedule

- 15 days of paid vacation

- Regular performance reviews

About the Role

The company is a B2C gaming startup building a high-performance sweepstakes platform already serving real users. The system handles real-time transactions at scale in a regulated space — reliability, speed, and security are paramount. The company operates lean, with backend engineers owning their services from architecture to production. Engineers here don't just implement — they design, decide, and ship. The company is looking for a Senior Backend Developer with 5+ years of experience who wants real ownership over systems that matter. This isn't a ticket-taking role — you'll be driving system design, making tech stack decisions, and shaping the architecture of a live, real-money gaming platform. You'll design and build backend services using .NET 10, own features end-to-end from architecture through production, and work directly with product, business, and compliance stakeholders. You'll be expected to identify the right tool for the job — whether that's choosing between Postgres and MongoDB for a given flow, deciding when WebSockets beat HTTP, or deciding what doesn't need to be built at all.

Responsibilities

• Lead system design and architecture for backend services using .NET 10
• Choose the right tech stack for each problem and justify those decisions
• Architect scalable, secure, and high-performance APIs and real-time systems
• Design data models and flows across PostgreSQL and MongoDB based on access patterns, consistency needs, and scale
• Build real-time gameplay and transaction features using WebSockets and event-driven patterns
• Apply backend best practices — clean architecture, SOLID, KISS, testing, logging, and monitoring — pragmatically, not dogmatically
• Own features end-to-end — from architecture and implementation through deployment, monitoring, and iteration in production
• Manage CI/CD pipelines and AWS infrastructure for the services you own
• Collaborate directly with product, business, and compliance stakeholders to shape what gets built
• Use AI coding agents (Claude Code, Codex, Cursor, etc.) to raise both velocity and quality

Requirements

• 5+ years of backend development experience, with strong fluency in modern .NET (C# / .NET 6+)
• Demonstrated experience owning system design and architecture decisions on production systems
• Strong experience with both PostgreSQL and MongoDB — including schema design, indexing, and choosing between them based on workload
• Experience building real-time systems with WebSockets
• Track record of taking complex features end-to-end: design, implementation, deployment, and production ownership
• Ability to choose and justify a tech stack rather than just consume one
• Strong analytical and problem-solving skills, with a bias toward simple, correct solutions
• Comfortable with full ownership in a lean startup environment — no hand-holding, no hiding
• Experience with or strong willingness to adopt AI coding tools
• Independent, proactive, opinionated, and solution-oriented

Nice to Have: 

• Experience in gaming, sweepstakes, fintech, or high-scale B2C platforms
• Experience with AWS (ECS, RDS, etc.)
• Experience with message queues and event-driven / asynchronous architectures
• Experience designing for regulated environments (compliance, auditability, PII handling)

About the Company

The company is a B2C gaming startup building a high-performance sweepstakes platform already serving real users. The system handles real-time transactions at scale in a regulated space. They operate lean, with a small, senior team and minimal bureaucracy, allowing decisions to be made quickly. The environment is fast-paced and focuses on meaningful ownership over core systems.

About the Company
Digis is a European IT company (part of Fiverr) with 200+ specialists delivering high-load SaaS platforms, enterprise solutions, and cloud-native products for clients worldwide. We build long-term engineering teams and ensure transparency, stability, and professional growth for every talent.

About the Project
Our client is a hybrid insurance company and social movement, historically focused on supporting women and local communities since 1895.
This is a great opportunity for a developer who enjoys legacy modernization, enterprise systems, DevOps improvements, and practical problem-solving in a stable environment.

Responsibilities

• Migrate legacy repositories from TFS to Git.
• Help design and implement DevOps / CI/CD pipelines.
• Support and enhance existing .NET applications and integrations.
• Debug legacy application and data incidents.
• Write and optimize T-SQL queries and stored procedures.
• Document system processes, data structures, and integration logic.
• Support integrations between vendor products and internal policy / underwriting systems.
• Potentially advise internal developers on modernization best practices.

Requirements

• 5+ years of commercial experience with .NET/C#
• 2+ years of hands-on experience with MS SQL / T-SQL
• Basic JavaScript experience
• English level: Upper-Intermediate or higher

We Offer

• 20 paid vacation days per year
• 5 paid sick leaves per year (no medical documents required)
• Personalized development plan with training compensation
• English courses compensation
• Work equipment if needed (PC / laptop / monitor)
• Flat and transparent internal communication
• Opportunity to switch between projects and technologies within Digis
• Full accounting and legal support

If you’re interested, feel free to apply or contact us for more details.

Remote | Full-time  | ASAP start

Solum Health is looking for a Senior Full-Stack / Backend Lead Engineer to join a near-launch HealthTech product focused on nutrition and healthier shopping decisions for the US market.

This is an existing product (18+ months in development), not a greenfield project. We need someone who can quickly understand an existing architecture, take ownership of the backend, and help drive the product through launch.
 

Tech Stack

• .NET / C#
• Azure
• SQL & NoSQL databases

• APIs & third-party integrations

   

Responsibilities

• Take ownership of the existing backend architecture
• Develop and maintain backend services, APIs, and workflows
• Work with complex product and nutrition data
• Support integrations with external data providers
• Manage product scoring and recalculation logic
• Work with Azure-based infrastructure and databases
• Support receipt-processing and purchase-tracking workflows
• Collaborate with mobile developers and distributed teams

• Make pragmatic technical decisions in a fast-moving environment

   

Requirements

• Strong commercial experience with .NET and C#
• Solid backend development expertise
• Experience working with existing production codebases
• Strong SQL and NoSQL knowledge
• Experience with Azure backend systems
• Experience designing APIs and backend workflows
• Strong architecture and problem-solving skills
• Ability to work independently with minimal onboarding

• Experience supporting production or near-production systems

   

Nice to Have

• HealthTech / Nutrition / Retail / Grocery domain experience
• Barcode scanning or receipt-processing systems
• Scoring / recommendation engine experience
• React or React Native experience
• Startup or scale-up background

• Experience joining rescue or replacement projects

   

We’re looking for someone who:

• Can move fast and take ownership
• Is comfortable joining a project close to launch
• Knows when to improve, refactor, or leave things as-is

• Communicates clearly and works well with distributed teams

   

Engagement: minimum 3 months, with strong potential for long-term collaboration.

What’s In It for You?

• Career Growth — Opportunities to develop and advance.
• Performance Reviews — Regular feedback and support.
• Work Anniversaries — Special gifts to celebrate milestones.
• Flexible Work — Hybrid or remote (Lviv office available).
• Mentorship — Guidance from experienced professionals.
• Accounting Support — We handle the paperwork.
• Paid Time Off — 18 vacation days + 5 sick days per year.
• Extra Leave — 10 additional days off annually.
• Free Office Lunches — Enjoy meals on us.
• Team Events — Gatherings, gifts, and a welcoming atmosphere.

• Project Description:

  Luxoft, a DXC Technology Company, is a digital transformation services and software engineering firm providing bespoke IT solutions that drive business change. In financial services we deliver complex projects with highly skilled engineering talents. If you would like to help us build engineering solutions that make difference for our global financial industry clients, this may be your opportunity. We are looking for C# engineers with experience in scalable system designs, to join the team developing a firm-wide Risk platform for our client US multinational investment bank. Working in this project will let you:
  - learn more about financial markets, products and risks.
  - verify and grow your skills in global diverse team.

• Responsibilities:

  - Design and develop software components for Equity Risk Platform built on C# and C++
  - Coordinate efforts with local developers and wider global team.
  - Do scalability and performance optimizations.
  - Manage the software development life cycle, from planning and prioritizing to testing and release.
  - Review, test and debug team members' code
  - Document development phases
  - Identify and analyze user requirements.
  - Selection of the most suitable solutions for creating a product
  - Compliance with deadlines

• Mandatory Skills Description:

  - 4+ years of hands-on experience using .Net technology stack and providing high-quality solutions.
  - Solid core .Net, multithreading, concurrency, design patterns.
  - Experience with SQL
  - Ability to apply modern security protocols and best practices.
  - Good delegation and time management skills
  - Problem-solving abilities
  - The ability to prove their point of view to the customer.
  - Excellent communication skills

• Nice-to-Have Skills Description:

  - C++ knowledge
  - Investment Banking experience

• Languages:
  • English: B2 Upper Intermediate

N-iX is looking for Lead .Net Engineer to join the team

Position Overview:  

As a .NET Engineer you will drive the technical modernization of a large-scale system from .NET Framework 4.8 to .NET 10. Your work will span the full backend stack — replacing Windows-only dependencies, refactoring legacy patterns, migrating data access to EF Core, and ensuring every service is portable, containerizable, and ready for AWS cloud deployment. You will collaborate closely with DevOps and database engineers as part of a cross-functional Agile team delivering a phased, production-safe migration.

Responsibilities:

• Migrate a .NET Framework 4.8 application to .NET 10.
• Migrate a large database-first Entity Framework 6 model to EF Core 8 across multiple bounded contexts, one domain at a time.
• Identify and replace Windows-only libraries and assembly references that prevent building and running on Linux.
• Establish unit test coverage measurement and enforce quality gates as part of the migration pipeline.
• Collaborate with the DevOps engineer on Dockerfile authoring, environment configuration, and secrets injection.
• Participate in Agile/SCRUM processes, conduct code reviews, and document migration decisions.

Must-Have Qualifications:

• 5+ years of C# and .NET backend development with strong knowledge of ASP.NET and ASP.NET Core.
• Proven, hands-on experience migrating .NET Framework applications to .NET Core / .NET 10 in production.
• Solid experience with Entity Framework Core.
• Solid knowledge of DDD, CQRS, and repository patterns in layered .NET architectures.
• Familiarity with Docker multi-stage builds and Linux container fundamentals for .NET applications.
• Proficient with xUnit and Moq for unit testing; comfortable with container-wired test setups.
• Experience with AWS ECS / Fargate and ECR for deploying containerized .NET applications.
• Familiarity with MassTransit and RabbitMQ or Amazon MQ for event-driven messaging.
• Experience with Hangfire or similar background job processing frameworks.
• Proficient in Git and familiar with Agile/SCRUM team processes.
• Upper-Intermediate/Advanced English level 

Nice-to-Have Skills:

• Experience building CI/CD pipelines for .NET projects.
• Familiarity with micro-frontend architecture and Angular-based single-page applications.
• Experience with automated code coverage tooling and enforcing coverage thresholds in CI.
• Experience with performance optimization and scalable enterprise backend systems.

We offer*:

• Flexible working format - remote, office-based or flexible
• A competitive salary and good compensation package
• Personalized career growth
• Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
• Active tech communities with regular knowledge sharing
• Education reimbursement
• Memorable anniversary presents
• Corporate events and team buildings
• Other location-specific benefits

*not applicable for freelancers

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

Department/Project Description

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.

Luxoft, a DXC Technology Company, is a digital transformation services and software engineering firm providing bespoke IT solutions that drive business change. In financial services we deliver complex projects with highly skilled engineering talents. If you would like to help us build engineering solutions that make difference for our global financial industry clients, this may be your opportunity. We are looking for C# engineers with experience in scalable system designs, to join the team developing a firm-wide Risk platform for our client US multinational investment bank. Working in this project will let you:
- learn more about financial markets, products and risks.
- verify and grow your skills in global diverse team.

• Responsibilities:

  - Design and develop software components for Equity Risk Platform built on C# and C++
  - Coordinate efforts with local developers and wider global team.
  - Do scalability and performance optimizations.
  - Manage the software development life cycle, from planning and prioritizing to testing and release.
  - Review, test and debug team members' code
  - Document development phases
  - Identify and analyze user requirements.
  - Selection of the most suitable solutions for creating a product
  - Compliance with deadlines

• Mandatory Skills Description:

  - 4+ years of hands-on experience using .Net technology stack and providing high-quality solutions.
  - Solid core .Net, multithreading, concurrency, design patterns.
  - Experience with SQL
  - Ability to apply modern security protocols and best practices.
  - Good delegation and time management skills
  - Problem-solving abilities
  - The ability to prove their point of view to the customer.
  - Excellent communication skills

• Nice-to-Have Skills Description:

  - C++ knowledge
  - Investment Banking experience

Freelance Back-End Developer (.NET) — iGaming

About the Role:
We are looking for an experienced Back-End Developer (.NET) for freelance collaboration in the iGaming domain. The primary focus is supporting existing projects, developing new features, and working with game mathematics (RTP, simulations).



Technical Stack:

.NET 6 / C# 10
Backend services with IPC/protocol serialization patterns (paytable XML)
Deterministic RNG and probability-table driven logic
NUnit, FluentAssertions
Git, CI/CD, Argo, Kubernetes


Requirements:

3+ years of experience as a Back-End Developer (.NET 6 / C# 10)
Mandatory experience in iGaming (slots) — casino game server patterns
Strong understanding of backend service architecture and serialization/IPC patterns
Experience with deterministic RNG and probability-table driven game logic (paytable XML)
Solid unit & integration testing skills (NUnit, FluentAssertions), including deterministic tests for RNG-driven systems
Ability to propose safe fixes, add regression tests, and explain probabilistic side effects
Good Git habits, clean and reviewable code, test-first mindset
Upper-Intermediate English or higher (written communication, documentation)
Hands-on experience with AI tools as part of everyday work is a must


Personal Qualities:

Ability to onboard quickly into existing projects and codebases
Proactive and self-driven — comfortable working without micromanagement
Clear written communication and documentation habits
Analytical mindset with attention to probabilistic edge cases

Support and development of existing game backend projects
Design and implementation of new features and game mechanics
RTP testing and simulation runs
Performance optimization and system stability
Working with game logic and integrations

C++ interop or mixed-language system experience (project references C++ gating logic)
Performance profiling and low-latency optimizations
CI/CD, Argo, Kubernetes hands-on experience
Prior work on casino or gambling game logic

We are looking for a visionary Senior .NET Developer to take full ownership of the backend for our Cloud Analytics Platform. This role is perfect for a technical leader who is passionate about AI integration and wants to be a pioneer in using the Model Context Protocol (MCP). You will not only architect scalable solutions but also mentor other developers, ensuring technical excellence and driving the project’s success from day one.

The Project

You will be leading the development of a cutting-edge Cloud Analytics Platform that directly impacts the quality of medical training worldwide. The platform helps healthcare centers achieve prestigious SSH accreditation by leveraging AI-powered insights and secure data analytics. This is a mission-driven project where you will work with a leading-edge AI stack (Claude API, LLM agents) and high-standard security protocols.

Tech requirements:

• 5+ years of experience with C# / .NET 8 backend development.
• Mandatory experience with AI service integration (Claude API, LLM integration, or building AI-powered agents).
• Strong knowledge of Model Context Protocol (MCP) and building MCP Tool Servers using the .NET SDK.
• Proven track record of mentoring developers and conducting code reviews.
• Expertise in PostgreSQL and designing analytical data models (Star Schema).
• Strong understanding of RESTful API design, Dependency Injection, and Clean Architecture.
• Solid grasp of authentication (JWT + OAuth2) and strict multi-tenant isolation.
• Familiarity with CI/CD pipelines (GitHub Actions) and Docker.
• English — Upper-Intermediate (B2), Ukrainian — fluent.

Nice to have:

• Experience with reporting libraries like QuestPDF or ClosedXML.
• Knowledge of healthcare standards (GDPR, HIPAA, or SSH accreditation).
• Experience with Azure (App Service, Container Apps, Managed PostgreSQL).
• Experience with Python microservices for data exchange.

What you will do:

• Act as the Backend Owner, taking full responsibility for the technical design, scalability, and performance.
• Mentor and guide the Middle .NET Developer through regular code reviews and consultations.
• Design and maintain services for the Cloud Analytics Platform following Clean Architecture.
• Develop and optimize PostgreSQL databases (fact and dimension tables) for high-performance queries.
• Build and maintain the Metric Catalog as a single source of truth for business metrics.
• Develop MCP Tool Servers to securely expose metrics to the AI Query Assistant.
• Implement daily batch ingestion pipelines (ETL) using .NET Worker Services and Quartz NET.
• Integrate Claude API (via Microsoft.Extensions AI) for natural-language querying.
• Ensure GDPR compliance (PII pseudonymization, AES-256 encryption, audit logging).

What we offer:

• Access to internal and external training, certification reimbursement;
• 18 working days of paid vacation, 10 compensated public holidays, and up to 10 paid sick days;
• Partial reimbursement for external English classes / free internal courses / speaking clubs;
• Up to $180/year for sports activities;
• A strong culture of knowledge sharing with senior experts you can really learn from;
• New equipment provision, and accounting support if needed;
• Competitive market-level salary with regular performance and salary reviews;
• Extra perks such as an insurance fund, seasonal gifts, celebrations, and additional team compensations;
• A psychologically safe and supportive environment;
• Active social responsibility and continuous support for the Armed Forces.

📌 If you believe this role could be a great match for you, please send your CV — we will review it and get in touch with you if there’s a match.

N-iX is looking for a talented Middle .NET Engineer to join our team!  

Our client is one of Europe's fastest-growing mobile companies with over 5  million active customers, 1,000 employees worldwide, and operations in five countries. The client is using the mobile virtual network operator business model.

Responsibilities:

• Back-End development of product components, adopting industry Best Practices
• Work in a cross-functional team with developers, testers, and production support. Cooperate with BI developers, business and systems analysts, and solution architects.
• Confidently communicate in a multinational environment, where communication is in English.
• Design, build, and maintain performant, efficient, reusable, and reliable code
• Translate business logic into code and automate business processes
• Perform code reviews, write unit tests
• Troubleshooting, problem-solving, and root-cause analysis to streamline project development

Requirements:

• 3+ years of commercial .NET development in a microservice environment
• Knowledge of modern .NET 8/9
• Web API, ASP.NET Core, Microservices
• SQL, MS SQL, Entity Framework
• Good understanding of Docker and Kubernetes
• Strong software design fundamentals (SOLID, OOP, OOD, etc.),
• Experience with public cloud (Azure/AWS/GCP/etc.)
• Experience with Messaging or Evening (ServiceBus, RabbitMQ, EventHub, Kafka, etc.)
• REST API design, Async programming, Third-party integration.
• Being result-oriented, the ability to get things done
• Good communication skills in English, verbal and written

Would be a plus:

• Experience with microservice practices, i.e., Service mesh, Blue/Green deployments, ArgoCD, etc.
• Experience with stored procedures in MS SQL
• Experience with .NET Native AOT
• Experience with Monitoring (Azure Application Insights, Open Telemetry, etc.)
• Knowledge of functional application (Azure functions, Lambdas, etc)
• Azure Logic Apps, API Apps, AKS, Redis
• MS CRM / MS CRM Web service
• GIT / Azure DevOps

We offer*:

• Flexible working format - remote, office-based or flexible
• A competitive salary and good compensation package
• Personalized career growth
• Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
• Active tech communities with regular knowledge sharing
• Education reimbursement
• Memorable anniversary presents
• Corporate events and team buildings
• Other location-specific benefits

*not applicable for freelancers

About the Role:

• We are modernizing legacy line-of-business applications into scalable, cloud-native platforms using .NET 10, ASP.NET Core, and Microsoft Azure.

• Legacy source systems may include ASP.NET Web Forms, MVC, WCF, WinForms, classic ASP, and older .NET Framework applications. The goal is to transform them into modern, secure, and maintainable solutions running on Azure.

• The successful candidate will work on incremental modernization initiatives using the Strangler Fig migration approach, replacing legacy modules with modern components while ensuring production stability.

Key Requirements:

• 5+ years of experience with C#, .NET Framework, and modern .NET 6/8/10 development

• Hands-on experience with legacy technologies such as ASP.NET Web Forms, ASP.NET MVC, WCF, WinForms, or classic ASP

• Strong expertise in ASP.NET Core (MVC, Razor Pages, Minimal APIs, Blazor)

• Experience with Entity Framework Core, LINQ, dependency injection, and async/await

• Solid knowledge of SQL Server / Azure SQL, T-SQL, indexing, and query optimization

• Practical experience with Azure services including App Service, Azure SQL, Blob Storage, Key Vault, Managed Identity, and Azure Functions

• Experience using AI-assisted development tools such as GitHub Copilot, Claude, or ChatGPT

• Strong understanding of software engineering best practices, testing, Git workflows, and secure coding principles

• Ability to collaborate effectively with DevOps, QA, and product teams in an agile environment

• Excellent problem-solving and communication skills

Key Responsibilities:

• Analyze existing legacy applications and design modernization strategies for migration to .NET 10

• Migrate legacy UI components to Razor Pages, Blazor, and modern ASP.NET Core patterns

• Refactor legacy data access layers to EF Core 10 with code-first migrations and repository patterns

• Replace legacy authentication systems with ASP.NET Core Identity or Microsoft Entra ID

• Develop and maintain REST APIs using modern ASP.NET Core architecture and best practices

• Implement background processing and scheduled tasks using Azure Functions and Durable Functions

• Integrate solutions with Azure services such as Azure SQL, Blob Storage, Key Vault, Application Insights, and Service Bus

• Write and maintain unit, integration, and end-to-end tests using xUnit, NUnit, Playwright, or Selenium

• Leverage AI coding assistants to accelerate migration, refactoring, documentation, and testing activities while ensuring code quality and security

• Monitor, troubleshoot, and optimize applications using Application Insights, structured logging, and KQL queries

• Work closely with DevOps and QA teams on CI/CD pipelines, deployment readiness, environment management, and test automation.

Technical Skills:

• .NET Framework, .NET 6/8/10, C# (latest language features)

• ASP.NET Core, Razor Pages, Minimal APIs, Blazor

• Entity Framework Core, LINQ, dependency injection, async/await

• HTML5, CSS3, JavaScript (ES6+), TypeScript

• React, Angular, or Blazor experience

• SQL Server, Azure SQL, stored procedures, query tuning

• Azure App Service, Azure Functions, Blob Storage, Key Vault, Managed Identity

• Application Insights, Log Analytics, KQL

• GitHub Copilot, Claude, ChatGPT, AI-assisted development workflows

• Git, pull request reviews, trunk-based or GitFlow workflows

Nice to Have:

• Experience with Web Forms to Razor Pages or Blazor migrations

• Knowledge of Strangler Fig modernization patterns

• Experience with Durable Functions and event-driven Azure services

• Containerization using Docker or Azure Container Apps

• Knowledge of OAuth 2.0, OpenID Connect, and Microsoft Entra ID

• Performance profiling and diagnostics tools

• Experience in government, procurement, or enterprise modernization projects

Soft Skills:

• Strong analytical and problem-solving mindset

• Ability to balance modernization with business continuity

• Comfortable working in hybrid legacy and modern environments

• Excellent written and verbal communication skills

• Collaborative approach with cross-functional teams

• Mentorship mindset and willingness to support junior developers

• Focus on incremental, maintainable, and low-risk delivery

We are the company bringing together developers across various technologies, and currently we are looking for strong and experienced Senior .NET Developer, who can become a part of our progressive team. We are open for opportunities to expand our team and strength it with skilled specialists. We consider Ukrainian candidates both from abroad and from Ukraine.

Requirements 
- 5+ years in .NET development 
- strong knowledge of .NET / C# (ASP.NET, .Net Core, MySQL, MongoDB, PostgreSQL, etc.), Kubernetes, Docker 
- working with microservice architecture, RESTful APIs
- expertise in Azure (understanding of AWS, GCP will be a plus)
- good English skills (from Intermediate)
- experience with CI/CD will be a plus (Azure DevOps, GitHub Actions)

What we offer 
- working with us as an agency
- remote work and flexible schedule 
- career development: take courses
- English lessons 
- paid vacation and sick-leave days

Hiring steps: intro, technical interview or test task, meeting with CTO, offer. 

If everything mentioned below is about you - we are waiting for your application.

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.