Jobs C# / .NET

.NET Engineer- Microsoft Teams / Voice Platform

We are looking for a .NET Engineer to join a product team developing a voice communication and call recording platform.

The role is focused on backend development and integrations with Microsoft Teams, including calls, meetings, recordings and communication data.
 

What you'll work on

• Develop backend services using C# / .NET
• Build and maintain Microsoft Teams integrations
• Work with calls, meetings, recordings and communication data
• Develop and maintain REST APIs and integration services
• Troubleshoot production issues related to Teams and voice integrations
• Contribute to architecture, scalability and reliability of the platform
   

What we're looking for

• 3+ years of commercial C# / .NET development experience
• Strong backend development experience with ASP.NET Core
• Hands-on commercial experience with Microsoft Teams integrations
• Experience with Microsoft Graph API
• Experience with Teams calls, meetings, recordings or communication APIs
• Experience with third-party API integrations
• Good knowledge of SQL and backend architecture
• English - B2+
   

Nice to have

• Microsoft Graph Communications / Calls & Meetings APIs
• Microsoft Teams compliance or call recording experience
• Voice / VoIP / contact center experience
• Real-time audio or media processing
• WebRTC, SIP, RTP, SignalR / WebSockets
• Azure

What We Offer

• Long-term product project
• Transparent compensation
• Paid vacation and sick leave
• Learning and professional development support
• High-quality equipment
• Paid office lunches
• Anniversary gifts and baby bonus

Domain: Banking & Finance
Experience: 8+ years
Project Duration: October 1, 2026 – March 30, 2027
Format: Hybrid
Location: Wrocław, Poland

About the Project

We are looking for an experienced Senior .NET Application Developer to join a dynamic technology team based in Wrocław.

The role focuses on designing, developing, and maintaining scalable enterprise-level applications using .NET and Microsoft Azure. You will work closely with cross-functional teams in an Agile environment and contribute to technical solutions and continuous improvement of the development process.

Responsibilities

• Design, develop, and maintain scalable enterprise applications using C# and .NET
• Build and integrate RESTful APIs and microservices
• Develop cloud-native solutions using Microsoft Azure
• Contribute to application architecture and technical design decisions
• Work with Azure DevOps, CI/CD pipelines, and source control systems
• Ensure application quality through development best practices, testing, and code reviews
• Troubleshoot and resolve complex technical issues
• Collaborate with cross-functional teams in an Agile/Scrum environment
• Contribute to continuous improvement of development processes and solutions

Requirements

• 8+ years of professional software development experience
• Strong proficiency in C# and .NET, including .NET Framework, .NET Core, and .NET 8
• Solid hands-on experience with Microsoft Azure and cloud-native application development
• Practical experience designing and developing RESTful APIs and microservices
• Strong understanding of object-oriented programming, software design principles, and development best practices
• Experience with Azure DevOps, CI/CD pipelines, and Git or similar version control systems
• Good knowledge of relational databases, particularly Microsoft SQL Server
• Previous experience working in Agile/Scrum environments
• Strong analytical, troubleshooting, and problem-solving skills
• Excellent written and spoken English

Nice to Have

• Microsoft Azure certifications
• Experience with Docker, Kubernetes, or other containerization technologies
• Knowledge of event-driven architectures and Azure messaging services
• Exposure to modern frontend frameworks and technologies

Tech Stack

• C#
• .NET / .NET Core / .NET 8
• Microsoft Azure
• RESTful APIs
• Microservices
• Azure DevOps
• CI/CD
• Git
• Microsoft SQL Server
• Agile / Scrum

Preferred Technologies

• Docker
• Kubernetes
• Azure Messaging

We’re looking for a Senior Microsoft Dynamics 365 CE Developer to join a project focused on extending and maintaining an existing, heavily customized Dynamics 365 Customer Engagement solution.

What you’ll do

• Develop and maintain customizations for Dynamics 365 CE / CRM.
• Work with C#/.NET, plugins, Custom APIs and Dataverse SDK.
• Design and optimize Dataverse data models.
• Develop JavaScript/TypeScript form scripts and PCF controls.
• Work with Model-driven Apps and Power Platform.
• Build and maintain integrations with Azure services and external systems.
• Troubleshoot production issues and optimize performance.
• Manage solutions and ALM across Dev/Test/Prod environments.
• Perform data migrations and work with security configurations.
• Make technical decisions and independently estimate and break down tasks.

Requirements

• 5+ years of experience with Dynamics 365 CE / CRM.
• Strong C# / .NET experience.
• Solid knowledge of Microsoft Dataverse.
• Experience with JavaScript / TypeScript.
• Experience with PCF, React.
• Strong understanding of Dynamics 365 Model-driven Apps.
• Experience with Power Automate.
• Knowledge of Dynamics 365 security model.
• Experience with REST / Web API, OData, FetchXML.
• Experience with Azure Service Bus, Webhooks, Azure Functions.
• Knowledge of Entra ID / Azure AD, OAuth 2.0.
• Experience with performance optimization and troubleshooting.

• Experience with data migration tools such as Configuration. Migration Tool, KingswaySoft / SSIS or Data Import Wizard.

   

Nice to have

• Power Pages / Portals.
• Git, Azure DevOps / GitHub Actions, Power Platform Build Tools, pac CLI.
• Azure Functions, Logic Apps, Key Vault, Application Insights, API Management.
• SQL Server, Azure Synapse Link / Microsoft Fabric.
• Dynamics 365 Sales, Customer Service or Field Service.
• Dual-write / Dynamics 365 F&O integrations.
• FakeXrmEasy, EasyRepro or Playwright.
• SSRS / FetchXML reporting, Power BI.

We Offer:

• Remote work and flexible working hours.
• Legal support.
• Paid sick leaves.
• Paid vacations.
• Medical insurance. 
• Free English classes.

We are looking for an experienced Senior .NET / Azure Solution Architect to join the project and take a key role in defining and delivering scalable, secure, and high-quality software solutions.

The successful candidate will work closely with the customer, development teams, and other technical stakeholders to translate business and technical requirements into robust architectural solutions. You will provide technical leadership throughout the software development lifecycle, ensuring that solutions meet both functional and non-functional requirements.

About the Client

Our client is one of the Big Four accounting firms and the world’s largest professional services network. Headquartered in London, the organisation operates across 150+ countries with more than 460,000 professionals, delivering a broad range of services across audit, tax, consulting, and advisory.

Project & Technology Stack

• Cloud: Microsoft Azure
• Architecture: Microservices, Distributed Systems
• Backend: .NET 8, ASP.NET Core
• Databases: MongoDB, Azure SQL
• Frontend: Angular 18, Kendo UI
• DevOps & Development: GitHub Enterprise, GitHub Copilot

Key Responsibilities

• Work closely with customers and stakeholders to understand and clarify functional and non-functional requirements.
• Analyse business and technical requirements and translate them into scalable, maintainable, and secure system architectures.
• Define and document solution architecture, technical designs, and architectural decisions.
• Provide architectural guidance and technical leadership to development teams, including clear blueprints and implementation guidelines.
• Collaborate across multiple teams to evaluate and define optimal technical solutions.
• Ensure architectural decisions and implementations align with relevant technical strategies, policies, standards, and engineering best practices.
• Provide technical expertise across application development, system integration, cloud services, and distributed systems.
• Create, present, and explain high-level solution specifications, architecture diagrams, and technical design documentation to both technical and non-technical stakeholders.
• Evaluate different technologies, architectural approaches, and implementation alternatives to identify opportunities for improvement.
• Monitor solution implementation and provide architectural oversight to ensure the delivered system remains aligned with the agreed design and requirements.
• Support development teams in delivering high-quality, scalable, resilient, and secure solutions.
• Contribute to technical decision-making and help balance architectural quality, delivery timelines, business priorities, and pragmatic engineering considerations.

Required Skills & Experience

• 10+ years of professional experience in .NET application development.
• Strong experience designing and delivering large-scale enterprise applications and products.
• Solid understanding of and hands-on experience with microservices architecture and distributed systems.
• Strong expertise in .NET / ASP.NET Core, preferably with recent experience in .NET 8.
• Practical experience with MongoDB and/or SQL Server/Azure SQL.
• Strong experience with Microsoft Azure and its cloud services, including technologies such as:
• Azure Service Bus
• Azure Blob Storage
• Azure Cache for Redis
• Other relevant Azure PaaS/SaaS services
• Proven experience creating technical architecture and solution design documentation.
• Experience providing technical leadership to development teams and guiding them in delivering secure, scalable, and high-quality solutions.
• Ability to translate complex functional and non-functional requirements into practical technical solutions.
• Strong understanding of software engineering principles, architecture patterns, integration, security, scalability, and reliability.
• Pragmatic approach to balancing engineering best practices, delivery constraints, processes, and flexibility.
• Excellent organisational and time-management skills, with the ability to independently structure work, prioritise activities, and meet deadlines.
• Strong communication and stakeholder-management skills.

Nice to Have

• Hands-on experience with Microsoft Graph API, particularly for document retrieval, document management, and related workflows.
• Experience integrating with document storage and collaboration platforms such as:
• SharePoint / SharePoint Online
• Azure Blob Storage
• Amazon S3
• Dropbox
• Experience with Angular, particularly Angular 18.
• Experience with Kendo UI.
• Bachelor's or Master's degree in Computer Science, Software Engineering, or another relevant technical discipline.

Language Requirements

• English: Advanced / C1 level or higher

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. 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.

Since 1997, we have been streamlining data workflows for professionals and teams with our intuitive and efficient software products. We’re committed to enhancing our customers’ experience across the globe by minimizing data-related tasks and enabling them to focus on more inspiring goals. Whether it’s Fortune-100 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 

You will be at the heart of building a new generation web-based application fully powered by AI technologies. This product is envisioned as a cutting-edge tool that redefines how professionals interact with complex data and workflows. We’re not just adding AI features into an existing app — we are designing an AI-first experience from the ground up, where automation, personalization, and intelligence are embedded in every interaction. The application will combine scalability, intuitive UX, and deep AI integration to create a solution that is both technically robust and delightful to use.

Your future team of professionals 

You will join an ambitious and growing team that values collaboration, ownership, and thoughtful engineering. You will work closely with Backend and Frontend Engineers, a Product Manager, and a QA Engineer, contributing to the development of the product and helping shape its technical direction as the team continues to grow.
 

Your future challenges & opportunities

Opportunities

• Direct involvement in the launch of a new product, with real impact on architecture and technical decisions.
• Hands-on experience building DWH integrations and MCP-based AI pipelines — one of the most in-demand skill sets in 2026.
• Work at the intersection of backend engineering and AI, expanding expertise beyond traditional .NET development.
• Opportunity to define integration patterns and technical standards from the ground up, rather than maintaining legacy code.

• Exposure to the full product lifecycle: from data modeling and API design to production deployment and optimization.

   

Challenges

• Proactively learn and adopt MCP, a recently introduced standard, keeping pace with a fast-evolving ecosystem.
• Design and implement DWH integrations with careful data modeling and schema planning — early mistakes can be costly.
• Balance product launch deadlines with the need to maintain clean, scalable, and maintainable architecture under pressure.
• Work across multiple technical domains simultaneously: data pipelines, API development, and AI tool integration.

• Validate and responsibly apply AI-assisted development tools, avoiding over-reliance on generated output.

   

Impact you will make 

• Design, build, and maintain scalable back-end services and APIs using C# and the .NET ecosystem, ensuring high performance, reliability, and maintainability.
• Ensure security, performance, and reliability across server-side components by applying SOLID principles, established design patterns, and back-end best practices.
• Write clean, testable, and well-documented code that meets team coding standards and supports efficient code reviews.
• Collaborate closely with front-end developers to design and integrate RESTful or GraphQL APIs that power seamless user experiences.
• Participate in code reviews and contribute to the continuous improvement of team engineering practices and standards.
• Optimize application performance, database queries, and system throughput to handle high-load environments efficiently.

• Conduct thorough testing and debugging to deliver high-quality, production-ready software.

   

Skills we are looking for 

• At least 5 years of experience as a .NET Developer (ASP.NET Core, Entity Framework Core), preferably in a tech-focused environment.
• Higher education in Computer Science, Information Technology, or a related field (relevant certifications are a plus).
• Deep understanding of software principles: SOLID, IoC, OOP, design patterns, and client/server architecture.
• Experience designing and building RESTful APIs and microservices.
• Experience with version control using Git and collaborative workflows (branching, pull requests, reviews).
• Familiarity with authentication concepts and secure application development (OAuth2, JWT).
• Experience with relational databases and ORM tools (SQL Server, PostgreSQL, Entity Framework Core).
• Experience with testing frameworks (xUnit, NUnit, Moq).
• Knowledge of Docker/docker-compose and basic CI/CD processes.
• Performance optimization skills: profiling .NET applications, identifying bottlenecks, and improving throughput.
• Ability to effectively use AI-assisted development tools (GitHub Copilot, ChatGPT, etc.), understand their limitations, and responsibly apply them in the development workflow.

Benefits you get

• Maintain your work-life balance

Manage your own working hours with our flexible schedule

19 days of annual vacation granted on a pro-rata basis

No overtimes required

• Hybrid 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 still take part in increasing the world`s awareness about quality Ukrainian products from any part of the world

• Stay healthy

Medical insurance from one of the top insurance companies in Ukraine with a wide range of included services, as well as special programs for relatives; and special options for those who live abroad.

15 working days of sick leave per year — because your health is a priority.

• Grow with us

In-house English courses — increase your proficiency through our online courses and speaking clubs with a native speaker

Online learning activities — workshops, lectures, and webinars to enhance your leadership, management, and self-awareness skills

Experience exchange — we are proud of our team of professionals who gladly share their deep expertise in all kinds of fields with the rest of the team

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, and that means 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 help

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 and constantly develop and practice regular knowledge sharing, which helps us evolve continuously.

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

We strive to ensure transparency and openness in the hiring process, and we understand the importance of providing timely feedback. If your resume meets the job requirements, we will contact you to clarify details and schedule an interview within 2 weeks after your application is submitted.

The timeframe for feedback between interview stages may take up to 2 weeks.

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 8, 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.

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.

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

Full Stack .NET Engineer (Voice / Telephony Platform)

We are looking for a .NET Engineer to join a product development team working on a voice communication and conversation analytics platform.

The product supports real-time voice communications, call recording and processing, and integrations with telephony providers, contact center solutions, and CRM platforms.

The role is primarily focused on backend development with C#/.NET. We are looking for an engineer with solid backend expertise who is comfortable working with APIs, integrations, databases, and real-time systems.

Experience in telephony, VoIP, WebRTC, SIP, UCaaS/CCaaS, or contact center solutions would be a strong advantage.

Tech Stack

C# / .NET 6+ · ASP.NET Core · MS SQL · REST APIs · SignalR · WebSockets · Twilio · WebRTC · Azure · React.js / TypeScript

Responsibilities

• Develop and maintain backend services using C# / .NET
• Build new functionality for voice communication and call recording
• Work with end-to-end call flows, including call initiation, routing, recording, storage, and retrieval
• Design, develop, and maintain REST APIs
• Build integrations with telephony providers, communication platforms, contact center systems, and CRMs
• Develop real-time functionality using SignalR, WebSockets, WebRTC, and Twilio
• Work with relational databases and optimize data access
• Troubleshoot issues related to call flows, third-party integrations, and real-time communications
• Improve application performance, reliability, and scalability
• Participate in technical discussions, estimations, and code reviews

• Collaborate with Product, QA, and Engineering teams throughout the development lifecycle

   

Requirements

• 3+ years of commercial software development experience
• Strong commercial experience with C# / .NET
• Good knowledge of ASP.NET Core
• Solid understanding of backend development and client-server architecture
• Experience developing and integrating REST APIs
• Experience with relational databases and SQL
• Good understanding of asynchronous programming and concurrency
• Experience working with integration-heavy and/or real-time systems
• Understanding of software architecture principles, design patterns, and clean code practices
• Experience with Git and modern development workflows

• English — B2+

   

Key Experience

• Experience with telephony, VoIP, UCaaS/CCaaS, contact center, or voice communication products
• Knowledge of SIP and RTP
• Experience with WebRTC
• Experience with call recording, audio/media processing, or real-time media streaming
• Experience with Twilio or similar communication APIs
• Experience with SignalR / WebSockets
• Integration experience with RingCentral, Microsoft Teams, Zoom, Cisco Webex, Avaya, 8x8, Genesys, Five9, or similar platforms
• Experience troubleshooting network, connectivity, or voice communication issues
• Experience with Azure
• Experience with microservices or distributed systems
• Docker and CI/CD experience
• React.js / TypeScript knowledge
• Experience with transcription, speech-to-text, conversation analytics, or AI/NLP solutions

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.

Our client is a proven Nordic alarm and event handling software company specializing in Personal Care, Personal Security, and IoT. We are looking for a skilled Full-stack Developer passionate about building reliable, scalable software solutions. If you enjoy working with modern technologies, solving complex integration challenges, and taking ownership of your work, this role is for you!
In this role, you will collaborate directly with the development team on the client’s side, actively participating in all phases of the software development lifecycle.

What you’ll do in this role

• Develop and maintain full-stack applications using C#/.NET and React
• Design and implement scalable cloud-native solutions on AWS
• Build new features and improve existing functionality across the platform
• Collaborate with product managers, designers, and engineers in an agile environment
• Optimize application performance, reliability, and security
• Write clean, maintainable, and well-tested code
• Contribute to architecture discussions and technical decisions
• Explore and leverage AI-assisted development tools to improve engineering productivity

We’re looking for

• 4+ years of commercial experience with C#/.NET
• Hands-on experience with React
• Experience working with AWS and cloud-based applications
• Solid knowledge of SQL and relational databases
• Experience designing and consuming REST APIs
• Understanding of modern software engineering practices and Agile development
• Upper-Intermediate or higher English level

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 8, 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.

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.

Job Description

Primary Backend Skills:

Framework: Deep expertise in the .NET 8 Framework, specifically for building Web APIs.
API Development: Solid experience creating and managing endpoints using GraphQL for .NET.
Data Access: Proficiency with Entity Framework for ORM.
Testing: Skills in writing unit tests for backend services using XUnit.
API Documentation: Experience using Swashbuckle to generate and maintain Swagger documentation.

Cloud & DevOps Experience:

Platform: In-depth knowledge of the Azure platform is required.
Containerization: Experience with Docker for creating and managing containerized applications.
Hands-on experience deploying microservices to Azure Container Apps.
Understanding of hosting frontend applications on Azure Static Web App.
Experience managing and interacting with Azure SQL Database.
Experience with NoSQL databases, specifically Cosmos DB.
Core Azure Services: Managing customer identity with Azure AD B2C, Using Application Insights for service monitoring, Experience with Azure API Management.

Preferred, Not Required Skills

Familiarity with our modern frontend stack is a strong plus. This includes: Core Technologies: React, Typescript, and Material UI. State Management & Data: Redux toolkit and Apollo Client for GraphQL.
Tooling: Experience with Vite as a build tool, Vitest for testing, and Zod for schema validation.
Navigation: Understanding of React Router.
Version Control: Proficiency with Git and GitHub.
Collaboration: Experience working with Jira and Confluence.
API Testing: Hands-on experience with Postman, particularly within a team workspace.
Development Environment: Experience with development tools like Eslint, Prettify (Prettier), and Husky is beneficial. While the choice of IDE is flexible, experience with
Visual Studio Code is preferred.

Job Responsibilities

Working in Scrum team and perform function of senior software developer doing software modules architecture, design, development, unit and integration testing and deployment.

Department/Project Description

Developing a cloud-based platform designed for managing latest generation of IoT devices.

The core part of the system provides a centralized location for remotely monitoring, upgrading, and configuring devices. It also offers an application marketplace, allowing users to deploy and customize applications for their devices.

At the moment it is extensively extending with services that deal with telemetry provided by the connected devices and services. These services are designed in two forms. First is the predefined set of data connectors and visualisation widgets, and the second is a framework that let customers to design own connectors and widgets.

Skill Category

.NET

Keyskills - Must Have

• .NET
• Azure
• GraphQL
• Entity Framework
• MS SQL Server

We are an IT services company based out of San Francisco, USA. ​​We build and acquire expert engineering teams to help our clients meet their business needs and solve their operational challenges.

We are looking for a Senior Software Engineer for long-term contract work to join one of our client’s Development Product Teams. This is a hands-on engineering role. You will write the code, review it, deploy it, and be on the hook when it misbehaves. There is no layer between you and production, and no layer between you and the people who depend on the platform.

This position may require working between the hours 12:00 PM to 8:00 PM Kyiv time. 

Tech Stack: 

• Backend: C# / .NET (ASP.NET Core Web API), Entity Framework, xUnit, REST APIs
• Azure: App Service and deployment slots, Azure SQL, Redis, Key Vault, Functions/WebJobs, Service Bus, Event Grid, Application Insights / Log Analytics, Azure DevOps pipelines
• Edge: Cloudflare (WAF, Workers, cache and redirect rules)
• Integrations: Salesforce (REST and SOAP APIs, OAuth, Connected Apps), OIDC-based member identity, learning and event platforms
• AI & Developer Tooling: GitHub Copilot, ChatGPT, Claude, or similar AI-assisted development tools

Requirements: 

• 8+ years building and running production C#/.NET web applications and APIs, including ownership of what you shipped.
• Strong, current Azure experience as a developer who operates their own environments: App Service and slots, Azure SQL, Key Vault, managed identities, and diagnosing problems from logs and metrics rather than guesses.
• Comfort in a small team with a wide surface area: you can pick up unfamiliar code, work without a spec, and ask the sharp question early.
• Must have experience applying AI within development. More detailed experience with AI-Native development and AIDLC preferred.

Would be Preferred:

• Azure DevOps (or comparable) pipelines — you have built and fixed CI/CD, not just pushed the button.
• Integration work against third-party SaaS APIs — OAuth flows, rate limits, sandbox data, and the failure modes that only appear in production.
• Salesforce platform integration experience (Connected Apps, client-credentials OAuth, staging test data).
• Automated testing as a habit, not a phase: unit, integration, and end-to-end, and the judgement to know which one a given risk deserves.
• Microsoft Azure certification — Azure Developer Associate (AZ-204) or a comparable Azure credential.

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.

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CUSTOMER

Our customer is a leading FinTech company providing embedded financing solutions for platforms and marketplaces. Their mission is to enable businesses to offer flexible credit products to customers, helping SMEs access funding quickly and efficiently.
The customer is recognized for innovation in embedded finance, serving thousands of businesses globally and partnering with major platforms. They operate in a regulated environment with a strong focus on scalability, performance, and security.

PROJECT

The project involves enhancing and expanding customer’s embedded finance platform, which integrates directly into partner services to deliver fast, flexible funding to SMEs. You’ll work on a modern tech stack, building features that improve customer and partner experiences while ensuring reliability in production.
Key Technologies: C#, .NET Core, Angular 18, AWS, CI/CD, Docker/Kubernetes, Kafka/RabbitMQ, Datadog, relational & NoSQL databases

Job Description

• Design, build, and deliver features and projects across C#, .NET Core, and Angular stack
• Write clean, maintainable, and well-tested code (unit/integration/e2e)
• Take ownership of features from requirements breakdown to deployment
• Deploy and monitor services in AWS cloud-native environments
• Handle production issues and incidents with accountability
• Collaborate with Product, Design, and Engineering teams in Agile practices
• Contribute to continuous improvement of systems and processes

Qualifications

• 5+ years of experience in software development with strong OOP and system design skills
• Solid hands-on experience with .NET (C#) and Angular
• Understanding of software testing concepts and practices
• Expertise in cloud-native and DevOps practices (CI/CD, automation, monitoring)
• Experience with relational and NoSQL databases
• Knowledge of non-functional requirements (performance, security, availability)
• Proven experience in FinTech, payments, banking, or regulated financial environments
• Upper-Intermediate English level or higher

WILL BE A PLUS

• Experience with Docker/Kubernetes
• Familiarity with event-driven architectures (Kafka, RabbitMQ)
• Proficiency with observability tools (Datadog or similar)
• Knowledge of domain-driven design (DDD) and complex domain modeling

PERSONAL PROFILE

• Growth mindset, curiosity, and proactivity
• Strong problem-solving skills balancing complexity and simplicity
• Feedback-oriented, open to giving and receiving constructive input
• Ownership & accountability in delivering commitments
• Team player with strong collaboration skills
• Adaptability to changing priorities
• Excellent communication skills across disciplines

Job Description

5+ years of experience in software development, with a focus on C#, React, and .NET Core.
Strong knowledge of object-oriented programming, design patterns, and modern software architectures (e.g. serverless, microservices, containerized, etc.).
Proficiency in front-end development using React.js and modern JavaScript/TypeScript frameworks.
Experience with cloud platforms (e.g., Azure, AWS, or GCP). - Azure preferred
Experience with CI/CD pipelines, unit testing, and deployment automation tools.
Excellent problem-solving skills and ability to work in a fast-paced, agile environment.
Experience working with Azure DevOps for task tracking and code repository would be a plus.
Experience working with AI-based productivity tools would be a plus.
Experience with NextJS and Syncfusion UI component library would be a plus.

Job Responsibilities

Perform as part of a team in designing, developing, and deploying high-quality applications using C#, React, and .NET Core working on one of the workstreams on the project in Healthcare domain.

Conduct code reviews and support junior team members to ensure technical excellence and professional growth.

Department/Project Description

Client is a leading global Contract Research Organization (CRO) that provides Phase I-IV clinical trial management, market access, and technology solutions with over 30 years of experience.