AI Engineer – LLM Agentic Systems f m x - Szczecin

Overview

We are building a new AI team within a project in the digital healthcare and data‑driven marketing domain. We are looking for both a Tech Lead and Senior Engineers who will work together as one cohesive team. The role focuses on designing and delivering production‑grade AI systems powered by LLMs in a real‑world, regulated environment.

Responsibilities

• Design and develop production‑ready AI systems based on LLMs and agent‑based workflows.
• Build and maintain data pipelines for retrieval, orchestration, and evaluation.
• Implement solutions using frameworks such as LangChain, LangGraph, LlamaIndex, or custom approaches.
• Develop and optimize RAG pipelines (chunking, embedding, retrieval, reranking).
• Integrate LLM models (OpenAI and open‑source) and support model selection decisions.
• Collaborate with Data Science teams to productionize ML models.
• Build evaluation frameworks (metrics, test sets, regression tests) and monitor system performance.
• Create and maintain scalable AI infrastructure in a cloud environment.

Qualifications

• Minimum 5 years of commercial experience in software development or AI/ML engineering.
• Strong Python skills with solid software engineering practices (modular design, testing, code reviews).
• Hands‑on experience with LLM frameworks such as LangChain, LangGraph, or LlamaIndex.
• Experience with vector databases (e.g., Pinecone, Weaviate, pgvector, OpenSearch).
• Practical experience building RAG pipelines and working with unstructured data.
• Experience working with SQL and cloud‑based data systems.
• Availability to start within 2 weeks due to a fast project kickoff.
• Fluency in English.
• Residing in Poland required.

What we offer

• Great Place to Work since 2015 – thanks to feedback from our workers.
• Employment stability – revenue of PLN 2.1BN, no debts, since 2006 on the market.
• Profit sharing – over PLN 76M has already been allocated for this aim since 2022.
• Attractive benefits package – private healthcare, benefits cafeteria platform, car discounts and more.
• Comfortable workplace – ClassA offices or remote work.
• Dozens of fascinating projects for prestigious brands worldwide.
• PLN 1000000 per year for your ideas – supporting passions and voluntary actions of our workers.
• Investment in your growth – meetups, webinars, training platform, and technology blog – you choose.
• Fantastic atmosphere created by all Sii Power People.

If you want to work on systems with high operational significance — apply now!