AI Engineer

Pretius is a Polish software company founded in 2006 in Warsaw. It has 19 years of experience in developing dedicated software systems. The company works with market leaders in need of enterprise solutions. It has over 180 specialists and offers services from business analysis, design, and development to long-term maintenance. In 2016, it founded a sister company IN Team specializing in body leasing, and in 2021 launched the Pretius Low-Code brand.

• Strong proficiency in Python or TypeScript with a full-stack mindset, including experience with modern backend frameworks and frontend development (React/Next.js)
• 3+ years of experience in full stack software development
• Hands-on experience building AI Agents and multi-agent systems using LangChain and LangGraph, as well as production-grade LLM applications
• Ability to integrate LLMs with external APIs, tools, and vector databases, and to design scalable AI workflows based on complex business logic
• Understanding of cloud environments and containerization (AWS/Azure/GCP, Docker/Kubernetes) is a strong advantage
• Excellent English (min. C1)

• Design and implement stateful, multi-agent architectures using LangGraph
• Build and maintain robust data pipelines and chains using LangChain primitives
• Develop full stack applications (frontend & backend) enabling interaction with AI agents
• Integrate LLMs with external tools, APIs, vector databases, and enterprise systems
• Optimize agent performance, context handling, and output quality (including evals in LangSmith)
• Manage automated deployments and cloud infrastructure for AI-based services
• Collaborate with international teams to translate business logic into scalable AI workflows