Lead AI Engineer with .NET

About the role

EPAM is looking for a Lead AI Engineer to own the architecture and delivery of AI‑based features for measurement products. You will work remotely from anywhere in Armenia, collaborating with a small engineering team to integrate natural‑language queries, summarisation, validation, and workflow assistance into an established AI/data platform.

Key responsibilities

• Design and ship AI features such as natural‑language query, summarisation, intelligent validation, exception handling and workflow assistance.
• Establish reusable AI patterns for retrieval, evaluation and guardrails, preventing duplication across products.
• Implement end‑to‑end Retrieval‑Augmented Generation (RAG) pipelines, including chunking, embeddings, hybrid search, reranking and citation‑based responses.
• Drive prompt and context engineering, including multi‑step and agentic flows that add product value.
• Define evaluation discipline with golden datasets, offline suites, LLM‑as‑judge approaches and regression checks.
• Lead, mentor and take accountability for a small team working on LLM integration and evaluation.
• Manage cost, latency and reliability through caching, token budgeting and graceful degradation.
• Integrate with platform services such as model gateway, prompt registry, vector stores and embedding pipelines.

Required profile

• 8+ years of software engineering experience in .NET (C#) and/or Python with proven lead‑level ownership of AI feature architecture.
• Hands‑on experience shipping LLM‑based features to production, including tool/function calling, structured outputs and streaming.
• Proficiency with Azure OpenAI, Azure AI Foundry, OpenAI or Anthropic APIs.
• Solid understanding of modern AI/data platform components (model gateway, prompt registry, vector stores).
• Strong SQL fundamentals and API integration skills.
• Upper‑Intermediate English proficiency (B2) or higher.

Required skills

• .NET (C#)
• Python
• Azure OpenAI / Azure AI Foundry
• OpenAI API
• Anthropic API
• SQL
• Azure DevOps Wiki documentation
• Application Insights
• Serilog
• GitHub Copilot or Claude for AI‑driven coding assistance

What we offer

• Fully remote work with flexibility to work from any location in Armenia.
• Opportunity to work abroad for up to two months per year.
• Leadership development, career advising and soft‑skills programs.
• Certifications (GCP, Azure, AWS) and unlimited access to EPAM’s internal learning database.
• Free English classes with certified teachers.
• Employee Stock Purchase Plan participation and referral bonuses.
• Comprehensive medical and family care package, fitness club discounts and four trust days per year.