Senior Python Back-End Engineer with Gen AI experience
Zabłocie 43B, Kraków
N-iX
We’re looking for a backend-focused software engineer with a strong interest in applied AI to help us integrate LLMs, RAG pipelines, and agentic workflows into our SaaS products. This role is not about building models from scratch - it’s about engineering production-grade systems that harness existing AI models and frameworks to deliver real product value.
You’ll collaborate with product managers, LLM specialists, and domain experts to design, build, and scale intelligent features powered by modern AI technologies.
Responsibilities:
Design and implement backend services that integrate LLM APIs (e.g., OpenAI, Claude) and retrieval-augmented generation (RAG) architectures
Build and maintain prompt orchestration logic, agent frameworks, and tool integrations
Work with vector databases (e.g., Pinecone, Weaviate, pgvector) to enable semantic search and retrieval
Collaborate with product and validation teams to ensure outputs are reliable, safe, and aligned with domain expectations
Implement monitoring, observability, and fallbacks for AI-driven services in production
Contribute to internal SDKs, templates, and documentation for reusability across product teams
Requirements:
3 - 5+ years of experience as a backend or platform engineer
Strong skills in Python, TypeScript/Node.js, or similar backend stack
Hands-on experience with AI/LLM APIs, RAG frameworks (LangChain, LlamaIndex), or vector stores
Understanding of prompt engineering, agent design, or AI system patterns
Comfort working with non-deterministic systems and building safeguards around them
Strong software engineering fundamentals: clean architecture, testing, CI/CD, logging
Nice to Have:
Experience with agentic AI tools (LangGraph, CrewAI, etc.)
Familiarity with LLM evaluation techniques or AI observability platforms
Exposure to regulated environments (e.g., clinical, financial, legal tech)
N-iX is a global software development service company that helps businesses across the globe create mind-blowing software products. Founded in 2002, today we’re a team of 2,200+ tech-savvy professionals working on innovative projects for global industry leaders and Fortune 500 companies.
Senior Python Back-End Engineer with Gen AI experience
Senior Python Back-End Engineer with Gen AI experience
Zabłocie 43B, Kraków
N-iX