Senior AI/ML Developer (f/m/x)

We are looking for an experienced AI/ML developer to join a project focused on designing, building, and deploying solutions based on Agentic AI and LLM. You will work in a team dedicated to creating architectures that enable AI agents to interact with enterprise systems, APIs, and tools. Your task will be to ensure that AI solutions are reliable and production-ready, applying best practices in LLM evaluation, monitoring, and responsible AI deployment. If you are passionate about modern AI technologies, this offer may be ideal for you.

Your tasks

• Designing and developing solutions based on Agentic AI and LLM
• Building agent workflows using LangGraph
• Integrating AI agents with APIs, tools, and enterprise systems using MCP and A2A protocols
• Implementing LLM evaluation, monitoring, and observability solutions
• Implementing AI security, content safety, and responsible AI mechanisms
• Integrating solutions with AWS Bedrock and/or Azure AI Foundry
• Supporting production deployment, optimization, and technical documentation

Requirements

• Minimum 7 years of experience in building and deploying AI/LLM-based solutions
• Practical knowledge of Agentic AI architectures and design patterns
• Experience in LLM evaluation methods, frameworks, and best practices
• Familiarity with AI monitoring and observability solutions, such as LangSmith and Datadog
• Strong experience with at least one major AI-as-a-Service platform, preferably AWS Bedrock or Azure AI Foundry
• Practical knowledge of A2A (Agent-to-Agent) and MCP (Model Context Protocol) protocols
• Knowledge of REST API design principles, WebSockets, and RPC, as well as best practices for API documentation and integration
• Advanced English language skills
• Residency in Poland

Nice to have

• Knowledge of event-driven architecture (EDA) patterns
• Experience working with OpenAI API and streaming interaction patterns
• Skills in technical documentation and architecture

Job no. JOB-743DY

Sii ensures that all hiring decisions are made solely on the basis of qualifications and competence. We are committed to equal and fair treatment of all, regardless of legally protected characteristics. At Sii, we promote a diverse and inclusive work environment, in full compliance with applicable anti-discrimination laws.

Benefits For You

• Great Place to Work
• Solid financial situation
• Contracts with the biggest brands
• Centre of internal trainings
• Many experts you can learn from
• Open and accessible management team
• Profit sharing
• Passion Sponsorship program
• Regular integration events and trips
• Comfortable and well-equipped offices
• MySii app
• Medical care