Senior AI Full Stack Developer

Senior AI Full Stack Developer needed to drive full‑stack development and production readiness for an AI product including feature development, infrastructure and DevOps, and client integrations.

• Strong Python experience.
• Hands‑on experience with LLMs, agentic systems, prompt engineering, and fine‑tuning.
• DevOps skills including CI/CD, Docker, Kubernetes, infrastructure as code, and automated deployments.
• Proven track record making systems resilient, low‑latency, and observable.
• Experience integrating services with client systems and building client‑facing APIs/SDKs.
• Familiarity with model evaluation metrics, monitoring, and data integrity practices.
• Ability to collaborate with product and client teams and document technical decisions.

• Implement and deploy new Python features and improve existing ones.
• Maintain CI/CD pipelines and automate model training, deployment, and monitoring.
• Integrate AI solution with customer‑facing products and environments.
• Ensure reliability, performance optimization, error handling, and observability.
• Fine‑tune LLMs and apply advanced prompt engineering to boost performance.
• Build or improve in‑house systems to track model quality and metrics.
• Run short research projects to explore new techniques and tools.

Location: Remote (with occasional visits to Łódź). Employment type: 2 months initial contract - to be extended.