Jobs C# / .NET

Project - 
​Developing the application for working with laboratory equipment. Work within the client's team, and full participation in the team means high level of responsibility and initiative.

Responsibilities

• Design, develop, and maintain cloud-based using Microsoft .NET and C#.
• Collaborate closely with a multi-disciplinary, international team to deliver high-quality software solutions.
• Ensure adherence to clean code principles and contribute to elegant and pragmatic software designs.
• Participate in all stages of the software development lifecycle, including requirement analysis, architecture design, coding, testing, and deployment.
• Lead or contribute to the implementation of new features, enhancements, and bug fixes.
• Work with Docker, Kubernetes, or similar containerization tools to deploy scalable applications (experience in these technologies is a plus).
• Collaborate in a multi-site setup, ensuring smooth communication and alignment across teams.

Requirements

• Bachelor or Master Degree in Electrical Engineering, Computer Science, or equivalent
• Excellent programming skills in Microsoft .NET / C#.
  Knowledge about Blazor or Javascript is a plus.
• A passion for clean code and pragmatic, elegant design
• At least five years and in best case 10 years plus of professional experience engineering cloud or web solutions.
  Knowledge in Kubernetes, Docker or testing frameworks is a plus.
• Fluent in English to work comfortably in an international environment.
• Quality mindset and at least 3 years of experience in bigger SW development teams (>= 10 people)
• Ideally, experience working in a multi-site teams setup

Solead Software is looking for an experienced .NET AI engineer to join our growing team to extend our custom software platform for information management industry with modern AI capabilities.

The primary goal is to make information management services more efficient and reduce manual work by means of introducing AI automation. The existing software platform is built on MS .NET and SQL Server technologies, using Azure services and integrations with multiple third-party systems. Multiple AI assistants and agents should be added into existing architecture via MS Agent Framework and Azure AI Foundry. The first practical tasks will be in building an AI powered PDF invoice parser and creating an AI agent for customer support via email.

Currently, Solead team consists of seven professionals split into three small subteams, and tightly collaborating with team mates in Europe and USA. Agile workflow assumes intense collaboration within the team, regular communication with project stakeholders, daily code commits and weekly releases. The entire software engineering process is based on GitLab environment with AI assistants and very high attention to code quality and documentation.

Join our amazing team and work on a large-scale project utilizing best practices and approaches in software development industry. You’ll meet great people and software professionals who will share with you valuable knowledge and expertise. You’ll be creating real software for real users, and seeing how your products help them in daily work.

This is a full-time position in Lviv, Ukraine. We combine work in our modern and spacious office with work at home.

Technology Stack

• Frontend: React, TypeScript, TanStack Query, Tailwind CSS, ASP.NET MVC, Bootstrap, jQuery, WPF, XAML
• Backend: .NET 10, C# 14, ASP.NET Core Web API, REST, Entity Framework Core, RabbitMQ, JWT Bearer Authentication, SQL Server, Microservices, Docker, Azure Cloud
• Tools: Consul, Swagger, GitLab, CI/CD, Visual Studio, Teams, MS Copilot / GitLab Duo

• AI: MS Agent Framework, Azure AI Foundry, LLM, RAG, MCP

   

Duties and Responsibilities

• Design, implementation and maintenance of various AI automation capabilities for the existing .NET based custom software platform
• Following well-established development process and practices, such as code review and documenting, code testing and merging, etc.
• Participation in Agile/Scrum workflow, iteration planning, team meetings, technical brainstorming, peer reviews, etc.
• Regular communication to other team members and project stakeholders, work progress and status reporting

• Proactive suggestions on how to improve the product, optimize workflow and enhance usability

   

Skills and Qualifications

• B.Sc. or M.Sc. degree in computer science, applied math, or similar
• 7+ years of experience in building commercial software systems
• Strong expertise in modern AI models, techniques, frameworks and engineering practices to build AI solutions and automate business workflows
• Good understanding of different LLMs, RAG and MCP technologies
• Experience in creating AI agents and assistants using MS Agent Framework and Azure AI Foundry
• .NET (Framework/Core) and C# programming skills
• Solid expertise in modern cloud technologies and software integration methods
• Git/GitLab and CI/CD working experience
• Agile/Scrum approach knowledge and practice
• High attention to details, accuracy, analytical and troubleshooting skills
• Smartness, agility and ability for quick ramp-up
• Upper-intermediate or better English communication skills (B2+)

Job Title:

Senior Windows Engineer

Who we are:

Adaptiq is a technology hub specializing in building, scaling, and supporting R&D teams for high-end, fast-growing product companies in a wide range of industries.

About the Product:

Our customer is an established international technology company developing a mature commercial software product used by organizations across different markets.

 

The product has been evolving for many years and combines well-established functionality with continuous development of new capabilities. The engineering organization is focused on extending the platform, improving existing areas, and gradually modernizing its technical foundations while maintaining the stability and quality expected from an established product.

 

Engineers work with a substantial production codebase and solve a broad range of technical challenges. The work requires understanding existing behavior, investigating complex problems, evaluating different approaches, and introducing improvements carefully without disrupting established functionality.

About the Role:

We are looking for a Senior Windows Software Engineer to join an experienced engineering team responsible for an established commercial product.

This is a hands-on role with significant individual ownership. You will develop and improve Windows-based software, solve complex engineering problems, and contribute to the performance, reliability, and long-term quality of the product.

You will be expected to work independently, make sound technical decisions, and take solutions from investigation through implementation and production support while collaborating with engineers across the broader product organization.

Responsibilities

• Develop, maintain, and improve Windows-based software, primarily using C#/.NET.
• Design and implement new functionality while improving existing components.
• Investigate technically complex issues across an established production codebase.
• Analyze software behavior and identify opportunities to improve performance and efficiency.
• Design reliable and maintainable solutions for production environments.
• Work with existing components written in other languages, including C++, when required.
• Take ownership of technical problems from initial investigation through implementation, validation, and production support.
• Collaborate with engineers across different areas of the product on features and technical improvements.
• Contribute to the gradual modernization and improvement of existing software.
• Use AI-assisted development tools as part of your daily engineering workflow while critically reviewing and validating generated solutions.

Required Competence and Skills:

• 9+ years of professional software engineering experience, with strong hands-on expertise in C#/.NET.
• Extensive experience developing and maintaining Windows-based software.
• Strong understanding of software engineering principles and building reliable production systems.
• Experience identifying and resolving performance and efficiency issues in complex applications.
• Experience working with large, mature production codebases.
• Strong debugging and problem-solving skills, including the ability to investigate unfamiliar technical areas independently.
• Ability to take substantial individual ownership and operate effectively with minimal supervision.
• Willingness to work with existing C++ code when necessary; 
• Practical experience using modern AI coding tools 
• Strong communication and collaboration skills.

Nice to Have:

• Experience developing endpoint agents, background services, or other long-running desktop software.
• Hands-on C++ development experience.
• Experience with virtualized desktop environments.
• Experience with macOS development.
• Experience with embedded web-based interfaces in desktop applications.

Why Us:

We provide 20 days of vacation leave per calendar year (plus official national holidays of a country you are based in).

We provide full accounting and legal support in all countries we operate.

We utilize a fully remote work model with a powerful workstation and co-working space in case you need it.

Job Title:

Senior Windows Engineer

Who we are:

Adaptiq is a technology hub specializing in building, scaling, and supporting R&D teams for high-end, fast-growing product companies in a wide range of industries.

About the Product:

Our customer is an established international technology company developing a mature commercial software product used by organizations across different markets.

 

The product has been evolving for many years and combines well-established functionality with continuous development of new capabilities. The engineering organization is focused on extending the platform, improving existing areas, and gradually modernizing its technical foundations while maintaining the stability and quality expected from an established product.

 

Engineers work with a substantial production codebase and solve a broad range of technical challenges. The work requires understanding existing behavior, investigating complex problems, evaluating different approaches, and introducing improvements carefully without disrupting established functionality.

About the Role:

We are looking for a Senior Windows Software Engineer to join an experienced engineering team responsible for an established commercial product.

This is a hands-on role with significant individual ownership. You will develop and improve Windows-based software, solve complex engineering problems, and contribute to the performance, reliability, and long-term quality of the product.

You will be expected to work independently, make sound technical decisions, and take solutions from investigation through implementation and production support while collaborating with engineers across the broader product organization.

Responsibilities

• Develop, maintain, and improve Windows-based software, primarily using C#/.NET.
• Design and implement new functionality while improving existing components.
• Investigate technically complex issues across an established production codebase.
• Analyze software behavior and identify opportunities to improve performance and efficiency.
• Design reliable and maintainable solutions for production environments.
• Work with existing components written in other languages, including C++, when required.
• Take ownership of technical problems from initial investigation through implementation, validation, and production support.
• Collaborate with engineers across different areas of the product on features and technical improvements.
• Contribute to the gradual modernization and improvement of existing software.
• Use AI-assisted development tools as part of your daily engineering workflow while critically reviewing and validating generated solutions.

Required Competence and Skills:

• 9+ years of professional software engineering experience, with strong hands-on expertise in C#/.NET.
• Extensive experience developing and maintaining Windows-based software.
• Strong understanding of software engineering principles and building reliable production systems.
• Experience identifying and resolving performance and efficiency issues in complex applications.
• Experience working with large, mature production codebases.
• Strong debugging and problem-solving skills, including the ability to investigate unfamiliar technical areas independently.
• Ability to take substantial individual ownership and operate effectively with minimal supervision.
• Willingness to work with existing C++ code when necessary; 
• Practical experience using modern AI coding tools 
• Strong communication and collaboration skills.

Nice to Have:

• Experience developing endpoint agents, background services, or other long-running desktop software.
• Hands-on C++ development experience.
• Experience with virtualized desktop environments.
• Experience with macOS development.
• Experience with embedded web-based interfaces in desktop applications.

Why Us:

We provide 20 days of vacation leave per calendar year (plus official national holidays of a country you are based in).

We provide full accounting and legal support in all countries we operate.

We utilize a fully remote work model with a powerful workstation and co-working space in case you need it.

Creatio is a global vendor of an agentic CRM & workflow platform with no-code and AI at its core. We help organizations automate customer and operational workflows achieving the fastest time-to-value and the highest ROI on the market. Millions of workflows run on Creatio daily, supporting thousands of clients in over 100 countries. Genuine care for our clients and partners is at the heart of our DNA. 

We’re proud to be recognized by top industry analysts as a Leader and Strong Performer in multiple Gartner and Forrester reports. 

In 2025, Creatio was named to Inc.’s Best Workplaces list, recognizing our commitment to employee wellbeing and a strong workplace culture.

Who We’re Looking For:

We invite an experienced Technical Lead to join our ALM Domain for collaborating within Scrum teams. ALM Domain teams build platform-level tools and capabilities that support the full Application Lifecycle of Creatio applications. This includes development and packaging frameworks, versioning, configuration management, delivery pipelines, testing, monitoring and alerting, building and integrating CI/CD tools, and lifecycle automation for internal teams and external customers/partners. The focus is on making application development and delivery and maintenance on Creatio predictable, repeatable, and safe across environments.

Team composition: 3 Developers, 1 QA, 1 Technical Lead, 1 Agile Coach, 1 Product Owner

Responsibilities:  

• Lead the design and development of architectural solutions and prototypes alongside the system architect and development team.
• Build, test, and debug high-quality back-end and front-end code.
• Support seamless product operation by addressing customer cases and ensuring system reliability.
• Continuously monitor and optimize development processes to enhance team productivity and quality.
• Drive adoption of innovative tools, standards, and best practices in software development.
• Collaborate closely with product managers, stakeholders, and leadership to align technical vision with business goals.

• Conduct technical interviews, mentor developers, and facilitate onboarding and professional growth.

   

Requirements: 

• Minimum 6 years of software development experience with full-stack expertise in .NET and Angular.
• At least 1 year in a technical lead or team lead role, guiding teams successfully.
• Strong mastery of object-oriented programming and solid application of KISS, SOLID, and DRY principles.
• Proficient in C# and modern .NET runtime environments (.NET 6+), including ASP.NET MVC, Core, and Web API development.
• Hands-on experience with microservices, containerization, Kubernetes, and Helm for orchestration.
• Deep knowledge of Angular 15+ with ability to build new components and optimize existing ones in a monorepo using RXJS and pipeline operators.
• Skilled in JavaScript, TypeScript, DOM manipulation, CSS/SASS, and UI styling per design specifications.
• Experience using Git and SVN with workflows involving branching, merging, and rebasing.
• Strong unit testing background including NUnit, mocking frameworks, and API testing with Postman.
• English proficiency at Upper-Intermediate level or above, both spoken and written.

What to expect from us: 

• Growth & Development: Clear career paths, mentorship opportunities, and access to continuous learning to help you reach your full potential.
• Flexibility & Well-Being: We provide flexible work arrangements and initiatives that empower you to manage your schedule effectively, stay productive, and thrive both personally and professionally.
• Recognition & Impact: A culture that celebrates achievements, values your ideas, and empowers you to make real contributions from day one.
• Innovative Culture: Be part of a company that embraces new ideas, modern technologies, and bold thinking to stay ahead of the curve.
• Benefits & Rewards Package: We provide competitive compensation and benefits designed to support you and your family. Our rewards approach goes beyond salary, recognizing your contributions and commitment. The exact package may vary depending on your country of residence and employment type. 

Creatio is an AI CRM and workflow platform where people and AI agents work together — with no limits on users, agents, or scale. We help midsize and large organizations run customer workflows in the AI era. With a global team and a large ecosystem of partners, Creatio serves thousands of customers in over 100 countries and automates tens of millions of workflows daily. Genuine care for our clients and partners is at the heart of our DNA.

We’re proud to be recognized by top industry analysts as a Leader and Strong Performer in multiple Gartner and Forrester reports.  

In 2025, Creatio was named to Inc.’s Best Workplaces list, recognizing our commitment to employee wellbeing and a strong workplace culture.

Who We're Looking For:

You'll join the team responsible for the engineering foundation of the Creatio platform, the core layer that powers every product and feature built across the ecosystem. This organization owns the platform runtime, data access layer, core services, performance-critical infrastructure, platform APIs, and extensibility framework.

The team's mission is to build highly scalable, reliable, and backward-compatible platform capabilities that enable dozens of engineering teams to innovate efficiently. Success in this role means designing and evolving the low-level architecture that serves as the backbone of the entire Creatio platform, balancing performance, maintainability, and long-term technical sustainability.

Responsibilities:

• Development of architectural solutions and development of prototypes together with the team.
• Regular monitoring of the effectiveness of development processes, their optimization, and improvement.
• Implementation of innovative tools, approaches, and standards in product development.
• Facilitation of team meetings (backlog refinement, sprint review (demo), planning).
• Execution of backlog tasks: pair programming, development, consultations on complex tasks).
• Control of the work of the incident team on the 4th line, responsibility for resolving incidents within the framework of the SLA.
• Designing, coding, testing, and debugging software according to specifications and requirements.
• Collaborating with stakeholders, product managers.
• Conducting unit tests, integration tests, and system tests.

Requirements:

• 6+ years of overall programming experience, strongly focusing on .Net.
• 1 year of experience in a leadership/mentor role.
• 2+ years of experience with Web applications.
• Knowledge of OOP, C#, and .NET.
• EntityFramework, WebAPI, ASP.NET MVC, ASP.NET Core., NUnit, Mock. DOM, CSS/SASS.
• Experience working with databases (MS SQL Server, PostgreSQL, Oracle).
• English level - Upper-Intermediate (spoken and business writing) or higher.

What to expect from us:

• Growth & Development: Clear career paths, mentorship opportunities, and access to continuous learning to help you reach your full potential.
• Flexibility & Well-Being: We provide flexible work arrangements and initiatives that empower you to manage your schedule effectively, stay productive, and thrive both personally and professionally.
• Recognition & Impact: A culture that celebrates achievements, values your ideas, and empowers you to make real contributions from day one.
• Innovative Culture: Be part of a company that embraces new ideas, modern technologies, and bold thinking to stay ahead of the curve.
• Benefits & Rewards Package: We provide competitive compensation and benefits designed to support you and your family. Our rewards approach goes beyond salary, recognizing your contributions and commitment. The exact package may vary depending on your country of residence and employment type.

Position overview
As a Senior .NET Engineer on the Fintech Core project, you will drive the development of key product modules within a modular white-label fintech platform designed for rapid deployment of digital banking and payment solutions. You will take ownership of technical implementation, architectural decisions, integration approaches, and engineering quality within one of the platform’s major client deployments.
 

The role requires deep expertise in backend engineering, distributed systems, and fintech integrations, with strong focus on scalability, reliability, security, and maintainability. You will work closely with Architects, Product Owners, DevOps Engineers, and cross-functional development teams to design and implement high-performance microservice-based solutions that support complex financial operations.
 

This position is ideal for a proactive and technically strong engineer with hands-on experience in fintech or banking systems, who is capable of leading module-level development initiatives, mentoring engineers, and driving engineering excellence across the project.

Your Background

• 6+ years of commercial experience with .NET backend development
• Experience with fintech, banking, or payment systems
• Experience leading engineers as a Technical Lead, Team Lead, or Senior Engineer with ownership responsibilities
• Experience mentoring developers, conducting code reviews, and supporting technical growth
• Strong understanding of microservices architecture and distributed systems
• Experience with ASP.NET Core, REST APIs, and gRPC
• Hands-on experience with Docker and Kubernetes
• Experience with PostgreSQL, Redis, MongoDB, RabbitMQ, and Kafka
• Strong knowledge of software architecture, clean coding principles, and engineering best practices
• Experience participating in architecture discussions and driving technical decisions
• Experience working closely with Product Owners, Architects, and cross-functional teams
• Experience with AWS is a plus
• English level: Upper-Intermediate or higher

Responsibilities

• Lead the development of key backend modules within the Fintech Core platform
  Design, develop, and maintain scalable backend services using .NET and ASP.NET Core
• Design and evolve microservice-based solutions and distributed architectures
• Develop and maintain REST APIs and gRPC integrations
• Drive technical decisions and contribute to the overall system architecture
• Own module delivery from technical design through production release
• Mentor engineers, perform code reviews, and promote engineering best practices
• Support estimation, task decomposition, and technical planning
• Collaborate closely with Product Owners, Architects, QA, DevOps, and other engineering teams
• Ensure system reliability, scalability, performance, and security
• Identify technical risks and proactively propose improvements
• Contribute to continuous improvement of development processes and engineering standards

Technologies

.NET 10, ASP.NET Core, gRPC, Entity Framework Core, PostgreSQL, RabbitMQ, Docker, Kubernetes, OpenTelemetry, Prometheus, Serilog, AWS, GitHub Actions

WE OFFER 
-20 billable days off in the first year of cooperation, all next years — 25 billable days off 
-Fair and competitive compensation 
-Friendly team and enjoyable working environment 
-Clearly described business processes in the company that really work -Regular updates on company news and Q&A sessions with top management 
-Flexible work schedule 
-Remote work mode 
-Ability to transfer unused vacation days to the next year

We're seeking a talented .NET Developer to help shape the future of blockchain technology in innovative startup. If you're ready to make a real impact in a cutting-edge industry, we'd love to hear from you!
 

Core Competence:
 

• At least 2 years of professional experience in software development with a strong foundation in C#, ASP.NET Core, and Entity Framework.
• Proficiency in managing IIS, MS SQL, Visual Studio, and Docker environments.
• Familiarity with ODBC, LINQ, NUnit, xUnit, NuGet, and RESTful APIs, alongside Git for version control.
• Sound understanding of client-side and server-side architectures.
• Strong analytical thinking, with a structured, math or engineering-oriented mindset and a focus on delivering results.
   

Preferred Qualifications:
 

• Knowledge of ReSharper, experience with Azure, and familiarity with NoSQL databases.
• Experience with AWS and Linux system administration is an asset.
• Active participation in hackathons demonstrates innovative thinking and problem-solving skills.
• Upper-intermediate level of English for clear and effective communication in a global team.
   

What We Offer You:
 

• Competitive Compensation: Your skills and experience will be rewarded with a salary aligned with industry standards and your career ambitions.
• Innovative Work Environment: Be part of a forward-thinking FinTech startup with a culture of continuous learning, including tech talks and participation in hackathons.

• 20 paid vacation days, 3 paid sick days, and a flexible schedule for work-life balance.

   

Inception-1 is a product company that creates AI-driven B2C products designed to help people feel more connected and less alone. Our mission is to build meaningful digital experiences that blend technology with empathy and to prove that technology can be both human and transformative.
GetHoney is our AI-driven product, and we’re looking for a Senior Product Engineer with a strong C#/.NET background and commercial frontend experience with React or another modern JavaScript/TypeScript framework.
This is not a feature-delivery role. We’re looking for an engineer who wants to understand the user problem, challenge solutions, make technical and product decisions, ship features end-to-end, and evaluate their impact after release.
You’ll be responsible for solving complex user problems and delivering meaningful product value end-to-end — from understanding the problem and shaping the solution to implementation, deployment, and post-release analysis.

If you want to own product outcomes, not just implementation, and build with an AI-first mindset, we’d love to hear from you!
 
Must-have skills:
 

• Proven ability to own and ship user-facing product features end-to-end — from problem definition and technical decisions to release and post-launch analysis.
• Strong hands-on experience with C#/.NET and building production backend systems.
• Commercial frontend development experience with React or another modern JavaScript/TypeScript framework.
• Experience working in a product company and building software used by real customers.
• Hands-on experience integrating LLMs and AI APIs into production applications.
• Hands-on experience with agentic engineering — designing and using AI-agent workflows, coding agents, and LLM-based automation in real development processes.
• Product development skills:
  • Strong grasp of product analytics;
  • Product features design and testing experience.
• Solid system design fundamentals. 

Key responsibilities for the first 6 months:
 

• Ship 15–20 meaningful product experiments.
• Implement agile but stable solutions for engaging conversational model, voice generation, interactive calls, etc.
• Improve retention and activation metrics.
• Design and maintain an experimentation framework (A/B testing, rapid iteration).
• Work across product, design, and research to turn insights into shipped features.
• Participate in user interviews and discovery sessions.
   

What makes you successful in this role:
 

• You have a strong product mindset and take ownership from idea to impact.
• You’re comfortable working in ambiguity and early-stage environments.
• You have high emotional intelligence and empathy for users.
• You care not only about shipping fast, but about shipping the right thing.
   

What we offer:

• Flexible work schedule and remote-friendly culture.
• Online services of a corporate doctor, and after the probationary period — health insurance in Ukraine.
• 20 working days of paid vacation per year, unlimited sick leave.
• All equipment necessary for work.
• Compensation for the best courses on the market, corporate online meetups and lectures, a large library, business and management schools for employees.

As a Senior .NET Developer, you'll design, build, and ship AI-powered features across our platform. You'll work closely with product, data, and design teams to turn cutting-edge AI capabilities into reliable, production-grade applications. This is a hands-on role where you'll influence architecture, tooling, and best practices for how we build with AI.

What You'll Do

Design and develop scalable applications and APIs using C#, .NET 8+, and ASP.NET Core

Build and orchestrate cloud-native, distributed applications using .NET Aspire, including service composition, configuration, and local development environments

Integrate large language models (e.g., OpenAI, Azure OpenAI, Anthropic Claude) into production systems

Build retrieval-augmented generation (RAG) pipelines using vector databases and embedding models

Develop AI agents and orchestration workflows using frameworks such as Semantic Kernel or Microsoft.Extensions.AI

Implement ML models in .NET applications using ML.NET or ONNX Runtime where appropriate

Engineer and evaluate prompts, and build testing frameworks to measure AI output quality and reliability

Use Aspire's built-in observability (OpenTelemetry, the Aspire dashboard) to monitor and troubleshoot AI-powered services, including LLM calls and latency

Optimize AI features for latency, cost, security, and responsible use

Deploy and maintain services on cloud infrastructure (Azure preferred) with CI/CD pipelines

Mentor team members and contribute to code reviews and technical standards

What You Bring

Required:

5+ years of professional software development experience with C# and .NET

Strong experience with ASP.NET Core, Entity Framework Core, and RESTful API design

Hands-on experience with .NET Aspire for building, orchestrating, and deploying distributed applications, including the AppHost, service defaults, and integrations (e.g., Redis, PostgreSQL, Azure OpenAI, vector stores)

Hands-on experience integrating LLMs or generative AI services into real-world applications

Working knowledge of RAG architectures, embeddings, and vector databases (e.g., Azure AI Search, Pinecone, Qdrant, pgvector)

Experience with Semantic Kernel, LangChain, or similar AI orchestration frameworks

Solid understanding of cloud platforms, preferably Azure (App Service, Functions, AI Foundry, Cognitive Services)

Familiarity with SQL and NoSQL databases

Strong grasp of software design principles, testing, and clean architecture

Nice to Have:

Experience deploying Aspire applications to Azure Container Apps or Kubernetes using the Azure Developer CLI (azd) or Aspire's deployment tooling

Experience with ML.NET, ONNX, or training and fine-tuning models

Knowledge of Model Context Protocol (MCP), function calling, and agentic AI patterns

Experience with Python for data or ML tasks

Familiarity with Docker, Kubernetes, and infrastructure as code

Understanding of AI safety, data privacy, and responsible AI practices

Front-end experience with Blazor, React, or Angular

Relevant certifications (e.g., Microsoft Azure AI Engineer Associate)

We are looking for Senior .NET developer with some skills in Angular to join our team working with stable , commercially succesful customer with working offline business. 

This is a long term , full time position for the candidates located OUTSIDE OF UKRAINE.

Timezone that candidate must be ready to work in is EST timezone. 

So ONLY candidates who are ready to work FULL TIME working hours WITHIN EST timezone will be considered. 

Must have skills :
- experience with multi-tenant systems and data isolation between tenants
- DDD targeted development mindset
- experience with eventual consistency architecture
- EF Core and SQL Server experience, including strong understanding of relational DB principles and ability to review and optimize raw T-SQL
- ability to design and extend behavior-level test suites, not only isolated unit tests

Nice to have skills:
- experience working in a partially refactored codebase, where legacy and target architecture coexist
- modular monolith experience
- understanding of authentication and authorization in distributed APIs, token handling, secure-by-default endpoints
- experience with background and scheduled processing, idempotency and retries
- Angular basic knowledge — enough to read the client code and understand how contract changes break it
- experience integrating with unstable third-party APIs (rate limits, versioning, partial failures)
- experience in ERP, order management, inventory or CRM projects

Will be an advantage:
- experience with AI agents as a part of workflow is appreciated
- experience with reporting and analytics pipelines (Power BI, aggregated data sync)
- working knowledge of Azure (Functions, Blob/Queue Storage, Key Vault, App Configuration, Application Insights)

Project tech stack:

- .NET (C# 12), ASP.NET Core Web API
- MS SQL Server, EF Core 8, linq2db
- Quartz.NET, Azure Functions, SignalR
- Azure (Blob/Queue Storage, Key Vault, App Configuration, Application Insights)
- xUnit, Moq, FluentAssertions
- Angular
- External: NAGS, QuickBooks, Twilio, Power BI

Meet the YozmaTech

YozmaTech isn’t just another tech company – we’re a global team of go-getters, innovators, and A-players helping startups and product companies scale smarter and faster.
We build dedicated development teams across 10+ countries, creating strong, long-term partnerships based on trust, transparency, and real impact.
Here, every idea counts. We value people who are proactive, open-minded, and ready to grow. If you’re passionate about building meaningful products and want to join a team that feels like family – you’ll feel right at home with us.

Our client is the recognized leader in omnichannel ad serving, creative automation, and dynamic personalization, powered by our Agentic AI orchestration platform, Flight Control. Them technology helps advertisers, & agencies to scale with speed, intelligence, and automation across creative versioning, activation, ad serving and performance insights.

Key Requirements:
🔹 5+ years of professional software development experience, primarily in backend development;
🔹 Strong experience designing and building production-grade services and APIs;
🔹 Strong software engineering fundamentals, including system design, data structures, clean code, and scalable architecture;
🔹 Strong experience working with C# / .NET ;
🔹 Strong experience with SQL and relational databases, preferably MySQL;
🔹 Experience working with AWS or other cloud platforms;
🔹 Experience with distributed systems, high-scale environments, and production troubleshooting;
🔹 Experience integrating with complex external APIs and third-party platforms;
🔹 Strong ownership mindset — comfortable taking a problem from initial definition through production;
🔹 Strong communication and collaboration skills;
🔹 Ability to independently explore unfamiliar domains and technologies and quickly turn them into working solutions;
🔹 English – Upper-Intermediate or higher.

We are looking for someone who:
 

🔹Uses advanced AI coding tools and agents as an integral part of the software development lifecycle.

🔹Knows how to use AI effectively for coding, debugging, testing, code exploration, refactoring, documentation, and technical research.

🔹Can design effective workflows around AI rather than relying on simple prompting.

🔹Can identify engineering tasks and processes that can be automated or significantly accelerated with AI.

🔹Understands both the capabilities and limitations of AI-generated code and applies strong engineering judgment when reviewing and deploying it.

🔹Bonus: has built internal AI tools, agents, automation workflows, or AI-powered product capabilities.
 

What you will do:
🔹 Design, develop, and own scalable backend services and APIs supporting our social advertising capabilities;
🔹 Build and maintain integrations with leading social platforms such as Meta, TikTok, YouTube, and other advertising ecosystems;
🔹 Take end-to-end ownership of features — from technical design and implementation through production rollout, monitoring, and optimization;
🔹 Work with complex third-party APIs, authentication flows, data models, platform limitations, and constantly evolving external integrations;
🔹 Build reliable, high-scale distributed services operating in a cloud production environment;
🔹 Develop a deep understanding of the product and business use cases, and contribute to product and technical decisions — not only implementation;
🔹 Identify opportunities to simplify systems, automate processes, and improve engineering velocity;

Interview stages:
🔹 HR Interview YozmaTech;
🔹 Technical Interview;
🔹 Live Coding Session;
🔹 Interview with CTO;
🔹 HR Interview;

Why Join Us?

At YozmaTech, we’re self-starters who grow together. Every day, we tackle real challenges for real products – and have fun doing it. We work globally, think entrepreneurially, and support each other like family. We invest in your growth and care about your voice. With us, you’ll always know what you’re working on and why it matters.

From day one, you’ll get:
🔹 Direct access to clients and meaningful products;
🔹 Flexibility to work remotely or from our offices;
🔹 A-team colleagues and a zero-bureaucracy culture;
🔹 Opportunities to grow, lead, and make your mark.

After you apply

We’ll keep it respectful, clear, and personal from start to offer.
You’ll always know what project you’re joining – and how you can grow with us.

Everyone’s welcome

Diversity makes us better. We create a space where you can thrive as you are.

Ready to build something meaningful?

Let’s talk. Your next big adventure might just start here.

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 C# developer for our music software

( work in Lviv or Kyiv,

remote work possibility ):

www.MusConv.com

About the project:

MusConv is b2c music software which helps people synchronize their music between music services: Spotify, Apple Music, YouTube Music, Amazon Music, Tidal and others.

We offer:

Challenging interesting project

Professional growth and development program

Flexible schedule

Team of highly talented individuals

Access to developer courses like https://www.pluralsight.com

Mentor: code reviews, studying( fiddler, postman, asynchronous programming, etc.)

5% of sources is simple gui based on xaml( avalonia similar to wpf )

95% of sources is regular .net standard( backend to interact with different music services )

We are looking for C# developer to implement new features

We’re looking for a .NET Engineer to join a product team developing a platform for voice communications and Microsoft Teams integrations.

You’ll work primarily on the backend, building services that support Teams calls, meetings, recordings, and communication data. A key part of the role is integrating the product with Microsoft Teams and ensuring these integrations remain stable and reliable in production.

What you’ll do

• Build and enhance backend services with C#, .NET, and ASP.NET Core
• Develop integrations with Microsoft Teams
• Work extensively with Microsoft Graph API and Teams communication APIs
• Implement functionality related to calls, meetings, recordings, and communication data
• Create and maintain REST APIs and integrations with external services
• Investigate and fix production issues related to Teams and voice functionality
• Help improve the platform’s performance, reliability, and scalability
• Contribute to architectural discussions and technical improvements

What we expect

• 3+ years of commercial experience with C# / .NET
• Strong experience building backend applications with ASP.NET Core
• Proven commercial experience integrating products with Microsoft Teams
• Hands-on knowledge of Microsoft Graph API
• Experience with Teams calls, meetings, recordings, or communication APIs
• Experience building integrations with third-party systems and APIs
• Solid understanding of SQL, databases, and backend architecture
• Ability to troubleshoot and solve technical issues independently

• English — B2+

   

Good to have

• Microsoft Graph Communications / Calls & Meetings APIs
• Experience with Teams compliance recording or call-recording solutions
• Previous work with VoIP, telephony, voice, or contact center products
• Knowledge of real-time audio or media processing
• WebRTC, SIP, RTP
• SignalR / WebSockets
• Azure

You’re a backend-oriented .NET Engineer who has already worked with Microsoft Teams integrations in a commercial environment and understands the challenges of communication-focused products.

Beyond strong .NET skills, we’re looking for someone familiar with the practical side of calls, meetings, recordings, and voice integrations, including supporting and troubleshooting them in production.

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.