We are seeking a Senior .NET Developer to join our team, focusing on the development of AI agents and supporting backend and frontend applications in a high-impact environment. You will play a key role in shaping innovative solutions that drive business value and client success. If you are passionate about AI and eager to make a difference, we encourage you to apply! Responsibilities Design and implement backend and full-stack applications, AI agents and platform components Build developer tooling, CI/CD and observability for safe, fast iteration Apply secure SDLC and privacy-by-design practices Perform TDD and BDD as part of everyday engineering practices Collaborate with cross-functional teams to deliver customer-focused solutions Use current LLM patterns (RAG, retrieval, routing, tool-use, evals) to deliver reliable, efficient AI systems Requirements 5+ years of professional software engineering experience Strong full-stack development skills (C#, .NET Core, and ASP.NET Core, TypeScript, Angular and/or ReactJS) Experience with AI agents and implementing AI Software Development Life Cycle with maturity 2.5+ Cloud experience (AWS/Azure/GCP) Skills in designing and implementing REST APIs Understanding of CI/CD principles and tooling Understanding of DevSecOps concepts, secure coding, and automated quality gates Excellent problem-solving and communication skills English proficiency at an Upper-Intermediate level (B2) or higher Nice to have Experience with LangChain/LangGraph, vector/RAG systems or OpenSearch ML experience (training, deployment, monitoring) Understanding of LLMs, fine-tuning and model adaptation Bulgaria Opportunity to Engineer your Future and to drive the world’s digital transformation with top industry clients Personal development program that will allow you to be valued for your strengths Wide range of professional trainings and workshops Being part of a collaborative, fast-growing, and innovative design team Established and accelerated growth toward different career paths, competencies, and roles Broad projects variety and possible mobility between projects over the time Collaboration in a multicultural environment and exchange of best practices with colleagues around the world Varied social benefits, Sports, Transportation and Health programs Work-life balance and flexible schedule, team buildings and sport opportunities Modern office/collaboration spaces (incl. new Infinity Tower business center, Sofia) Hybrid By Design - we provide you with the best productivity options from the 2 worlds.
Meet, socialize and enjoy F2F time with your colleagues, while working from the modern EPAM's office for a few days per week and benefit from the EPAM's virtual working environment - making you able to be productive and work from remote for the rest of the week
Job description provided by EPAM Systems.
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