Andrzej Pigoń

Delivered 50+ React/TypeScript components that enabled 30 teams to self-serve design system adoption and reduced cross-team UI inconsistencies. Partnered with designers and improved component onboarding via Claude Code-assisted scaffolding and enhanced Storybook documentation.

Improved Gantt chart rendering 100x (100 to 10,000+ items) using Intersection Observer and DOM virtualization, eliminating UI lags under production load. Owned multi-tenant fleet frontend architecture, shipped real-time vehicle tracking with Mapbox and TanStack Query, and reduced CI/CD execution time via pnpm migration.

Unified multiple banking data sources into a single financial dashboard with graceful error handling and real-time sync using REST APIs. Built responsive UIs with complex pagination and loading states for thousands of users.

Architected a React Native form system supporting 500+ interdependent fields with offline support and sub-second responsiveness verified via performance testing. Designed high-performance state management and validation patterns and mentored a junior developer through pair programming and code reviews.

Built map-based 3D route visualization for a UK tourism platform by integrating Mapbox with Unity in a Next.js/TypeScript application. Eliminated Webpack bundle bottlenecks by optimizing the CSS Modules pipeline for consistent mobile-to-desktop load times.

Maintained a legacy outdoor navigation application by extending the JavaScript/OpenLayers codebase while keeping critical regressions at zero. Focused on safe, incremental improvements to preserve production stability.

Delivered a land parcel management platform serving 32,000+ users with Node.js REST APIs and an Angular/OpenLayers frontend. Owned end-to-end feature delivery from backend APIs through the client experience.

Delivered a custom map ordering platform using React/Redux/TypeScript, releasing to production on Azure. Owned frontend delivery for a workflow-focused mapping experience.

Architected and shipped a map shop admin panel as sole frontend owner by establishing a React/Webpack stack and Azure deployment. Implemented the GitLab CI/CD pipeline and managed the full application lifecycle independently.

Delivered the Czapp commodity trading platform MVP with React/Recharts and achieved production release. Took on informal frontend team lead responsibilities to guide implementation and delivery.

Built a responsive trading platform for 1,000 relationship managers using React/TypeScript with role-based access control. Delivered secure UI behavior aligned to user permissions.

Optimized critical SQL queries for a regulatory monitoring platform, reducing execution time 20x (10s to 0.5s) through database analysis and query rewriting. Maintained the full application lifecycle across AngularJS, ASP.NET/C#, and SQL Server within a 5-person team.

Earned an engineering degree in Computer Science at Wrocław University of Technology from 2012 to 2016.