Software Engineer (AI Engineer)

Allegro is the most popular shopping platform in Poland and the largest e-commerce platform of European origin. It operates a marketplace model with over 135,000 merchants and more than 250 million offers across key categories. The platform reaches 22 million customers monthly, offers fast and free deliveries under Allegro Smart!, and includes modern financial services and a wide pickup network.

• 2-5 years of commercial experience in AI/ML or Software Engineering with a proven track record of developing and deploying robust systems to production.
• Strong proficiency in Python and familiarity with CI/CD pipelines, containerization, and basic observability.
• Familiarity with AI-assisted development tools like Cursor or Copilot.
• Understanding of distributed systems and microservices architecture.
• Experience in building and maintaining RESTful APIs in a cloud environment.
• Deep practical understanding of Prompt Engineering, Context Window Management, and interacting with Large Language Models as API endpoints.
• Analytical mindset to debug complex issues in non-deterministic AI systems.
• English proficiency (B2+ level).

Nice to have:

• Containerization
• Observability

• Design, implement, and scale stateful, multi-turn workflows using frameworks like Agent Developer Kit, managing complex user intents.
• Build production-grade APIs to expose AI capabilities, implement emerging interoperability standards, and secure transactional layers (MCP, A2A, ACP).
• Systematically measure system performance, optimizing core metrics such as User Success Rate and Hallucination Rate.
• Collaborate with Data teams to build and maintain data-serving layers that enrich AI agents with real-time enterprise data.
• Maintain high code quality through rigorous testing, active code reviews, and full-stack observability using tracing tools like LangFuse.
• Monitor the rapidly evolving landscape of Generative AI and Agentic Systems and propose how to apply these advancements to Allegro's ecosystem.