Tony Sterezynski

Analyzed client needs and translated them into concrete frontend and backend features. Created custom design systems tailored to each project’s identity. Designed UX/UI-focused and GEO-SEO-optimized websites (Top 5 ranking). Automated workflows, reducing up to 85% of manual tasks using Make and AI.

Strategic redesign of the main entry point used by all teams. Documented dependencies and ensured service continuity. Complete overhaul of the subscription management system and adaptation of interfaces to the new design system. In parallel, deployed and monitored production applications, supervised an external team through pair programming and code reviews. Updated external libraries and components while optimizing and refactoring code to improve performance and security.

Internal applications and interfaces developed for a company operating within European distribution networks. Optimized processes and designed solutions for stock tracking, data management and real-time synchronization, as well as for data conversion and optimization to accelerate media distribution and transfer. Implemented centralized state management with NgRx (Angular). Built reusable component libraries for visual and technical consistency. Designed workflow-oriented interfaces to reduce recoding for new developers.