Job VC
Senior Python Engineer (AI / Automation)
About the project
US-founded media company operating email newsletters at scale – millions of subscribers across finance, health, and business verticals. Small engineering team, flat structure, direct ownership, fast iteration. No layers of approval, no large org to navigate.
You'll own the AI layer of the automation platform alongside a counterpart engineer who handles integration and infrastructure.
What you'll work on
AI-driven content generation and management workflows at production scale
Agent systems coordinating multi-step operational tasks: content, QA, validation, reporting
RAG pipelines over internal knowledge bases and operational data
Prompt architectures designed for reliability, cost control, and measurable output quality
Evaluation and regression testing for LLM systems — "it looked fine when I tested it" isn't good enough
Real production systems, not demos. The work removes hours of manual operational work daily and needs to be reliable enough that people actually trust it.
Requirements
6+ years of development experience
4+ years of production Python
2+ years shipping production systems with LLMs and agents
Solid understanding of what happens underneath the frameworks: tokenization, context windows, function calling, when RAG helps and when it doesn't
Hands-on with agent orchestration: LangChain, LangGraph, MCP, or equivalent
Clean, maintainable Python – frameworks support your thinking, not replace it
Tech stack
Python · FastAPI · PostgreSQL · LLM APIs (OpenAI, Anthropic) · LangChain / LangGraph / MCP · vector databases · Playwright · Docker · proxy infrastructure
Conditions
B2B contract, full-time
Warsaw office (onsite preferred, remote considered)
Direct collaboration with technical PM and small senior team
Fast-moving environment: ambiguity, shifting priorities, growing scope