I'm a Software Engineer who builds products where business rules, data, integrations, and AI have to work together.

For about 18 months, I worked in an enterprise e-commerce product team at x-kom, a leading Polish computer and consumer electronics retailer. Its platform served 1M+ customers and processed thousands of transactions daily.

I implemented substantial React and Redux changes across cart behavior, promotions, customer forms, payment handoff, and application-state synchronization. I collaborated with Product, backend engineers, QA, and reviewers through staging and production release. Within that team, I regularly diagnosed difficult Safari and other Apple-platform problems. For affected scenarios, my changes restored the expected checkout behavior through the team's verified release process.

Over 9 years, I delivered paid booking, reservation, e-commerce, and integration software for 20+ clients. A returning client hired me to build 2 production booking systems with opposite availability rules. One let customers book and pay on the operator's own site while keeping one room and time slot aligned with an external reservation channel. The other allowed several groups to reserve the same time.

I was responsible for understanding the process, defining the product rules, choosing the technical foundation, implementation, testing, deployment, and support. Both systems ran in production, and the client returned for the second delivery.