Open to opportunities

Bryan Bruzinga

@bryanbruzinga

Message

I’m a senior software engineer specializing in scalable React/TypeScript frontend systems and performance optimization.

Brazil

Message

What I'm looking for

I’m looking for a team where I can own end-to-end critical user features, modernize legacy systems, and keep pushing performance gains through thoughtful architecture, testing, and cross-functional collaboration.

I’m a Senior Software Engineer focused on scalable, user-facing frontend systems—building with React and TypeScript while driving performance, reliability, and modernization in production. In my current role, I designed a singleton error-tracking architecture for a microfrontend shell that consolidated duplicate Bugsnag instances into a single shared runtime, cutting error-tracking overhead by 98% when multiple MFEs are active.

I’ve also owned critical end-to-end delivery, from migrating legacy codebases to upgrading build and test infrastructure. I transitioned from frontend to backend in Python within 2 months, became a top contributor in a legacy repo, and delivered measurable improvements like rewriting dashboard queries to reduce load times from 20s to 4s; I also migrated from Enzyme to React Testing Library to improve test reliability and maintainability. Earlier, as the sole frontend engineer, I architected and built unified React/TypeScript dashboards, cut server requests by 30% using caching strategies, reduced React build times by 50% by moving to Vite, and delivered React Native mobile deployment with React/TypeScript and Expo.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

Zoolatech

Jan 2026 - Present (5 months)

Designed a singleton error-tracking architecture for the MFE shell, consolidating duplicate Bugsnag instances and reducing error-tracking overhead by 98% with multiple microfrontends active. Analyzed and documented legacy internal package usage to drive deprecation and consolidation strategies across MFEs.

React TypeScript Error Tracking (Bugsnag)Performance Optimization Architecture

Fullstack Engineer

Zoolatech

Sep 2023 - Dec 2025 (2 years 3 months)

Transitioned from frontend to backend in Python within 2 months, becoming a top 4 contributor and earning recognition from senior leadership. Rewrote legacy dashboard queries, cutting load times from 20s to 4s and migrating Enzyme to React Testing Library to improve test reliability.

Python React Webpack Performance Optimization

Frontend Developer

Geplant – Forest Technology

May 2022 - Aug 2023 (1 year 3 months)

Reduced server requests by 30% using frontend caching strategies with React Query, improving load times in React apps. Cut React build times by 50% by migrating the bundler to Vite and increased front-end test coverage from 0 to 70% with Jest and Vitest.

React TypeScript React Query Jest Vitest Vite Unit Testing Performance Tuning React Native Expo

Frontend Developer

Alien Lab

Jun 2021 - May 2022 (11 months)

Built an indexable customer page system using Next.js and TypeScript with Static Site Generation (SSG). Developed a React/TypeScript CMS from scratch and reduced React Native bundle size by 50% via dependency optimization for low-bandwidth users.

Next.js TypeScript Static Site Generators (SSGs)React React Native CMS Development Performance Optimization GitHub