AI Full-Stack Product Engineer (React/TypeScript) - Warsaw onsite

• Strong Mid/Senior-level experience building and shipping production web applications.
• Strong experience with React and TypeScript or an equivalent modern web stack.
• Solid backend development experience, including designing and implementing APIs, business logic, and data flows.
• Experience with Node.js, Python, or both is a strong advantage.
• Strong product mindset and ability to identify unnecessary complexity and improve user experiences.
• Ability to work independently and make sound decisions when requirements are incomplete or ambiguous.
• Experience taking ownership of features or product areas from concept to production.
• Good understanding of software architecture, testing, performance, and production quality.
• Security-conscious approach to software development, especially when working with sensitive data.
• Strong communication skills and ability to collaborate effectively with Engineering, Product, and Design teams.
• Practical experience using AI tools as part of everyday software development.

Nice to have:

• Experience building AI-powered products, such as AI chat interfaces, AI search, recommendation systems, workflow automation, AI agents / agentic systems.
• Experience with Python and/or Node.js on the backend.
• Experience owning product areas with limited supervision.
• Strong knowledge of web performance and accessibility.
• Experience working with complex enterprise applications.
• Experience with observability, instrumentation, logs, traces, or developer tooling.

• Build and deliver end-to-end product features across frontend and backend.
• Develop high-quality user-facing experiences using React and TypeScript.
• Design and implement APIs, backend logic, and data flows.
• Translate ambiguous product requirements into practical and scalable technical solutions.
• Work closely with Product and Design to shape and deliver new features.
• Take ownership of features from problem discovery through development, release, and production support.
• Improve product usability, performance, reliability, accessibility, and overall UX.
• Make sensible decisions around scope, architecture, and technical trade-offs.
• Instrument and monitor features to understand their behavior in production.
• Maintain high standards of code quality, testing, security, and maintainability.
• Use AI development tools such as Codex, Claude Code, and AI agents as part of daily engineering workflow.
• Contribute to improving internal engineering tools, workflows, and development practices.

Willingness to work from the Warsaw office.