Lead Backend Engineer & Architect (Node.js | TypeScript | AI)

People More sp. z o.o. sp.k. is a technology-focused company working with a large client base domestically and internationally. They build projects from scratch or partially (UX, UI, frontend, backend, mobile), working directly for clients and supporting partners. The role involves working on diverse projects with clients worldwide.

• 7+ years of commercial backend development experience.
• Expert knowledge of Node.js, TypeScript, and NestJS in production environments.
• Proven experience designing and operating high-scale distributed systems serving hundreds of thousands of users.
• Strong architectural background with demonstrated ownership of backend platforms and technical decisions.
• Expert knowledge of PostgreSQL, including query optimization, execution plans, indexing, transactions, and use of raw SQL.
• Experience designing asynchronous and event-driven systems, including queues, retries, idempotency, and background job processing (e.g. BullMQ).
• Strong understanding of backend security, including OAuth 2.0, RBAC/ABAC, OWASP, audit logging, secrets management, and permission boundaries.
• Experience implementing multitenant architectures, data isolation, and Row-Level Security (RLS) style patterns.
• Experience writing Architecture Decision Records (ADRs) and leading technical design decisions.
• Practical experience using AI-assisted or agentic coding workflows while maintaining high engineering quality standards.
• Very good English and Polish language skills (C1).

• Design and build scalable backend services using Node.js, TypeScript, and NestJS.
• Drive architectural decisions and document them using Architecture Decision Records (ADRs).
• Design and implement distributed, event-driven systems.
• Optimize backend performance, reliability, and scalability.
• Design efficient PostgreSQL data models and optimize complex queries.
• Own backend security, authentication, authorization, and data isolation strategies.
• Collaborate on AI-powered features and backend integrations with large language models (LLMs).
• Mentor engineers and establish engineering best practices.
• Contribute to technical strategy while remaining actively involved in software development.

Informujemy, że administratorem danych jest People More P.S.A. (dawniej: People More sp. z o.o. sp. k.) z siedzibą w Krakowie, ul. Orląt Lwowskich 8. Podanie danych obowiązkowych jest niezbędne do realizacji procesu rekrutacji. Dane osobowe będą przetwarzane do czasu zakończenia postępowania rekrutacyjnego i przez okres możliwości dochodzenia roszczeń, z prawem do wycofania zgody w dowolnym momencie.