Senior Python Engineer (AI, React)

Design and build scalable AI agent platforms, with a real impact on architecture and technical decisions.
We are looking for a Senior Python Engineer (AI Platforms) who combines deep backend expertise with strong architectural thinking and a passion for solving complex engineering challenges.

The role is primarily focused on Python backend development and building scalable enterprise systems for managing and governing AI agents. Beyond writing production-quality code, you will have a meaningful voice in architectural decisions and help shape the platform's technical direction.

You will:

• design, build and deploy on Kubernetes  a Python backend with React frontend, and pi AI agents;
• shape software architecture, evaluate technical trade-offs and contribute to key design decisions;
• design governance capabilities, including authentication, authorisation and access control;
• drive engineering quality through code reviews, technical discussions and mentoring other developers
• work with our UX designer to understand user needs and provide deep product understanding and insight

Role focus:

• - approximately 30% Python backend development;
• - approximately 30% Pi agent development
• - approximately 30% architecture design, team management and code reviews
• - approximately 10% React frontend development

What we’re looking for:

• strong software architecture and system design skills, including the ability to evaluate trade-offs between microservices, macroservices and other architectural approaches;
• at least 5 years of experience with Python;
• hands-on experience designing or building AI agents.
• commercial experience with Django, FastAPI or a similar web framework;
• experience building, deploying and maintaining production web applications;
• good understanding of governance and security patterns, including authentication, authorisation and access-control;
• working knowledge of React and modern frontend development;
• strong communication skills and the ability to explain technical decisions clearly;
• professional working proficiency in English;

You will be working with the following technologies:

• Python, Django and related backend ecosystem;
• Pi agent harness (pi.dev).
• Docker and Kubernetes;
• React and modern frontend tooling

What do we offer ?

• hybrid model job (1-3 days per week from office at Zabłocie 43A in Cracow)
• salary range -  B2B contract: EUR 300–500 per day, depending on experience;
• plenty of opportunities to learn, share knowledge and grow professionally;
• real influence on the architecture and future direction of the platform;
• a supportive working environment;
• A good work-life balance -we believe that well-rested people do their best work.

Recruitment process:

1. Discovery Call with our Recruiter;
2. Online meeting with the leadership team;
3. Technical discussion.