Senior .NET Software Engineer with strong AI Engineering experience

We're looking for a Senior .NET Engineer who builds production agentic systems and works the AI-native way: coding agents, specs, and evals are part of the daily workflow. You'll design scoped AI agents and the tools and MCP servers behind them, measure their quality, and ship them as reliable, observable and secure .NET services.

Responsibilities

• Agent and Tool Development: Build, test, and maintain scoped AI agents (e.g., Resource Optimization, Metadata, Contract Management). Create custom agent tools, system prompts, and structured JSON output parsers
• MCP and API Engineering: Implement read-only data access tools on MCP servers to bridge agents with the data access layer safely. Apply least-privilege access and OAuth2 service accounts
• Observability & Health: Implement standardized /health and /ready probes, structured JSON logging, W3C trace propagation (OpenTelemetry) and real-time agent execution status monitoring. Track latency, cost and token usage per run
• Evaluations: Test and evaluate agentic workflow performance and quality, and tool-call trajectory. Improve RAG Retrieval and Generation precision and quality; work with evaluation metrics; define and use golden datasets
• AI-native delivery: Use coding agents (GitHub Copilot, Claude Code) and spec-driven development in daily work. Review and verify generated code for correctness, security and maintainability. Codify what works as reusable agents, skills, prompts and workflows for the team
• Collaborative Development: Co-locate unit and integration tests with capability modules, take part in peer code reviews, and share AI-engineering practices with teammates

Requirements

• Experience: 3+ years of production .NET (C#) development, and 1+ year building LLM integrations and multi-agent workflows in production
• Agent frameworks and tool calling: Hands-on experience building agents with at least one framework, ideally Microsoft Agent Framework or Semantic Kernel (or LangChain/LangGraph, Google ADK, Strands or equivalent). Solid tool/function calling
• Agentic RAG and context engineering: Hands-on work on retrieval, agent memory, planning and routing. Practical context-engineering skills, including managing context across multi-step tasks
• Multi-agent solutions: Orchestration patterns and guardrails
• LLM APIs: Experience with at least one stack (Azure OpenAI / AI Foundry, AWS Bedrock, Vertex AI or LiteLLM) and Microsoft.Extensions.AI
• MCP and integration: Building MCP servers or tools, ideally with the C# MCP SDK on ASP.NET Core. RESTful API design, OAuth2 service accounts, event-driven communication, microservices
• Observability and evaluation: OpenTelemetry and structured logging for services. Basic LLM evaluation (metrics, golden datasets, tool-call checks)
• Data: SQL (e.g. SQL Server, PostgreSQL) and at least one NoSQL store (e.g. Cosmos DB, MongoDB, Redis)
• Security: OWASP Top 10 for LLM, PII handling, input/output validation, MCP security
• AI-assisted engineering: Daily use of at least one coding agent (GitHub Copilot or Claude Code), and a habit of reviewing and verifying generated code for correctness, security and maintainability

Nice to have

• Spec-driven development (OpenAPI/JSON Schema as the source of truth), and codifying what works as reusable agents, skills, prompts and workflows for the team
• Agentic Context Engineering (ACE)
• Azure/AWS (App Service/AKS, Azure DevOps), Docker/Kubernetes, CI/CD
• Vector databases (pgvector, Azure AI Search), LLM-as-judge and red-teaming experience

We offer

With us you can:

• Work on a flexible schedule remotely or from any of our comfortable offices or coworking spaces in Ukraine
• Receive the necessary equipment to perform your work tasks
• Change projects and technology stacks within EPAM
• Gain experience in various business domains (Insurance, E-commerce, Healthcare, Finance, Travelling, Media, Artificial Intelligence, and more)
• Relocation opportunities may be available for eligible candidates, depending on the role and openings at other EPAM locations
• Participate in volunteer, charity programs and communities (both technical and interest-based)

We focus on your professional growth:

• You can plan your individual career path together with your manager
• Receive regular feedback from colleagues
• Improve your English for free with certified teachers (Speaking Clubs, client interview preparation courses, etc.)
• Get the opportunity to undergo free training and certification in AWS, GCP, or Azure Clouds
• Use the internal E-learn training program (18,200+ specialized training and mentoring programs)
• Access corporate accounts on LinkedIn Learning, Get Abstract and other partner resources
• Study at EPAM Solution Architecture School with the instructors who are practicing architects
• Develop as a leader, join Delivery Management, Resource Management, Leadership Essentials school and more
• Participate in internal communities (500+ meetups, technical discussions, brainstorming sessions, online events and conferences annually)

What we offer:

• Vacation and sick leave (including a sick leave without a medical certificate)
• A wide range of Voluntary Medical Insurance programs providing both medical treatment and various preventive options (including sports activities)
• Medical insurance for family members at corporate rates
• Company support during significant life events (childbirth or adoption, marriage, etc.)
• Support for psychological comfort: discounts on services from mental health specialists or coaches, thematic training
• E-kids program - a free programming language training program for EPAMers' children

Kindly note that this role supports remote work, but only from within Ukraine.

Kindly be advised that the set of benefits, including learning, certification, and other opportunities, may vary depending on the role you apply for. Our recruiter will be able to share more details about the specific opportunity during your general interview.

EPAM strives to provide its global team of over 62,350 professionals in more than 55 countries with opportunities for professional growth from day one of collaboration. Our colleagues are the source of EPAM's success, so we value cooperation, strive to always understand our clients' business and aim for the highest quality standards. No matter where you are, you will join a dedicated, diverse community that will help you realize your potential to the fullest.

Remote in Ukraine