Tomasz Stanisz

• Turn product ideas into solution designs and architecture, then lead development across the Next.js frontend, NestJS backend, internal admin panel and Playwright E2E project.
• Lead workflows for authentication/SSO, organizations, event objects and spaces, assets, wizard forms, pricing recalculated from selected options, and calendar and reservations.
• Own the frontend design system and Storybook, alongside the landing page and blog.
• Run an AI-assisted delivery process (Cursor, Codex, Claude) in a deliberately small team with the CEO and a DevOps collaborator; I review the code, test every feature and push the final changes myself.

Case study: an MVP rebuilt with a small team and AI agentsdevthomas.pl/work/theeventa-mvp

• Architecture: design and develop the React and TypeScript frontend of an internal CMS, with navigation, actions, forms and data grids driven by backend configuration and JSON schemas, bringing together resources from multiple connected legacy services. Dozens of new resources have since reached production without frontend changes.
• Forms: schema-defined forms with RJSF custom fields and widgets, using Material UI and MUI X Data Grid Pro.
• Delivery: a new CMS version released every two-week sprint.
• Leadership: technical guidance and code review for the CMS team, plus code review across the department's React projects.
• Quality: introduced Cypress E2E testing from scratch, with Page Object Model, DRY shared test logic and parallel execution, and trained two testers, reviewing their code in the first year. Regression checks fell from 1–3 days of manual testing to about an hour on Orange TV GO (100+ scenarios) and about 30 minutes on the CMS.
• Product: built an Orange TV GO feedback form and backend submission flow that makes user opinions and ratings available to the Product Owner.

Case study: schema-driven CMSdevthomas.pl/work/orange-cms Case study: from days of manual regression to under an hourdevthomas.pl/work/orange-e2e-testing