Senior Backend Engineer – AI/LLM Systems
PubNub
full-time
Posted on:
Location Type: Remote
Location: Poland
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Salary
💰 PLN 26,000 - PLN 35,000 per month
Job Level
Tech Stack
About the role
- Ship AI-powered features into production
- Integrate LLM inference, build evaluation and observability tooling
- Own the full lifecycle of AI services
- Design low-latency inference pipelines for high-throughput message streams
- Implement model routing, prompt and retrieval patterns (RAG), caching, batching, and fallbacks
- Build internal frameworks, APIs/SDKs, and tooling
Requirements
- Work mainly with TypeScript, Python, or Rust
- Use modern AI-assisted tools (Copilot, Cursor, Claude, etc.)
- Communicate clearly in English
Benefits
- Competitive monthly compensation: 26,000 – 35,000 PLN + VAT
- Remote-first within Poland
- Flexible time management focused on outcomes
- Access to modern tools and infrastructure required to perform the role effectively
- Equity participation opportunity
- Optional access to our centrally located Katowice office
Applicant Tracking System Keywords
Tip: use these terms in your resume and cover letter to boost ATS matches.
Hard Skills & Tools
TypeScriptPythonRustAI-powered featuresLLM inferencelow-latency inference pipelinesmodel routingprompt and retrieval patternscachingbatching
Soft Skills
clear communication