Senior .NET Engineer (Data Platform & AI Agents)

Quick Facts

• Role: Senior .NET Engineer (Data Platform & AI Agents)

Description

Design and develop data platform services for a multi-tenant SaaS architecture using .NET and PostgreSQL. Build tooling that generates performant, customer-specific queries with a focus on performance and cost optimization. Develop agentic tools (custom skills/sub-agents and MCP tools exposing internal APIs) and collaborate with Data Platform, Analytics, Support, and Product to ensure high-quality AI-generated code.

Requirements

• Senior-level (5+ years) experience building production, performant, scalable backend services in .NET/C# (preferably multi-tenant SaaS)
• Strong SQL and PostgreSQL skills (schema design, query optimization)
• Performance/memory awareness (streaming vs buffering, profiling, load testing) and understanding of .NET architecture
• Daily experience working with AI/agents (turn requirements into agent-executable specifications and review outcomes for hallucinations, architectural drift, and security issues)
• Testing and quality discipline (unit/integration tests)
• Excellent written communication (architecture documentation, specifications, PR descriptions)
• Fluent English (C1)
• Eligibility to work in Poland (citizenship, residence card, visa)

Benefits

Not specified in the provided text.