Staff Software Engineer - mobile (m/f/n)

InPost has revolutionised e-commerce parcel delivery in Poland and is now one of Europe’s leading out-of-home (OOH) e-commerce enablement platforms. Founded in 1999 by Rafał Brzoska. InPost provides delivery services through a network of over 64,000 Automated Parcel Machines (APMs) and more than 30,000 pick-up and drop-off (PUDO) points across nine European countries: Poland, the United Kingdom, France, Italy, Spain, Portugal, Belgium, the Netherlands and Luxembourg, alongside to-door courier and fulfilment services for ecommerce merchants. InPost’s extensive OOH network supports rapidly growing parcel volumes across its markets, with 1. 4 billion parcels delivered in 2025. Its locker solutions offer consumers a delivery option that is cheaper, more flexible and convenient, environmentally friendly and contactless. As a leading OOH logistics provider, InPost is recognised for transforming parcel delivery economics in Europe, appealing to both consumers and merchants through its flexible, technology-driven solutions. We're looking for a Staff Software Engineer to raise the quality bar across our mobile app and backend domain - not by owning a test suite, but by changing how the whole domain designs, ships, and trusts its software. This is a hands-on technical leadership role. You'll shape architecture for testability and reliability, own the quality gates that let teams release with confidence, and build a culture where engineers own quality rather than hand it off. You'll operate as a true Staff Engineer: setting technical direction across several teams, going deep in the codebase when it matters, and framing quality as an engineering and business outcome - not a QA phase at the end. If you've done this in a product with real mobile scale, even better. Your scope of work will cover 3 areas. I. Quality architecture & engineering - Set and own the quality and reliability strategy across the domain - from the API/contract layer through to native iOS (Swift/SwiftUI) and Android (Kotlin) clients. - Design for testability and release confidence: quality gates inside release and store-deployment pipelines, device and OS-version fragmentation coverage, and flakiness control at scale (BrowserStack + GitLab CI).

- Keep the backend/API/contract layer strong and connect it cleanly to the mobile client layer. - Drive resolution of quality and reliability issues that cross team boundaries within the domain. - Get hands-on in the codebase where your depth moves the needle - prototypes, tooling, reference implementations, thorny incidents. II. Technical leadership, coaching & culture - Shift quality ownership left into the engineering workflow - be the person teams pull in before implementation starts, not after. - Mentor senior engineers across the domain and accelerate real, visible growth. - Run knowledge-sharing across the org: tech talks, workshops, reusable documentation, pair sessions; co-lead the OneTech community. - Co-shape the domain's technical direction with the SEM , with full autonomy within the domain, and analyse quality trends from metrics to identify where to improve. - Define quality and reliability metrics and gates , and use them to frame risk in business terms for EMs, SEMs, and PMs. III. AI governance in engineering - Define how AI is adopted for quality and engineering productivity in the domain — which tools, which workflows. - Design AI-assisted workflows and set governance and data-security standards across teams. - Assess and manage the risk of AI usage (including production-facing work), not just the productivity upside. - Mentor engineers on responsible, effective AI use and report on its ROI. Must-have - 8+ years of software engineering experience , with a track record operating at Staff / Principal / Tech Lead / Architect level - proven impact beyond a single team (standards set for multiple teams, or a cross-team initiative led).