Architect - Staff Software Engineer

Invia x Travelplanet.pl x Wakacje.pl is one of the largest travel groups in Europe. Every year we help more than 6 million people plan their trips. Behind that sit teams in IT, Product, Data, Marketing, HR, Finance, Sales and Customer Experience, who build the tools and services those travelers use.

Whichever team you join, your work shows up in how people plan and experience their holidays. Your next stop: Solutions Architects form a guild that provides end-to-end architectural coverage across our systems and customer journey steps. Each Architect owns a defined slice — a system (e.g., search, booking, payments) or a journey step (e.g., checkout, post-booking) — and is the named technical authority for that area.

Together, the guild ensures every critical part of our estate is owned, coherent, and moving toward a clear target state. This is a hands-on technical leadership role. You will set architectural direction, make and document decisions, and ensure those decisions are understood and adopted in practice — not just written down.

What lies ahead on your journey: ​ Own the end-to-end architecture of an assigned system or customer journey step — maintain a current-state assessment, a target architecture, and a sequenced, costed roadmap between them. Produce and keep current all architectural documentation for the slice: C4 models (L1/L2), Architecture Decision Records (ADRs), ERDs, and sequence diagrams. Every material decision has a written rationale; undocumented architec