Tech-led the PPCOM team (11 engineers) owning the React component platform powering every page of PayPal.com and Venmo.com - 6,500+ pages, 4.8M daily views - driving roadmap, architecture decisions, and cross-org alignment.

Improved PayPal.com homepage LCP by 36% on desktop and 46% on mobile (3.48s → 2.24s / 4.24s → 2.29s) via component platform redesign and rendering optimizations; shipped via controlled rollouts with zero incidents and full backward compatibility.

Led Venmo.com migration from a static site to the component platform, owning the component strategy end-to-end; established baseline component coverage and a migration plan that enabled Venmo.com to adopt the same scalable UI architecture and release cadence as PayPal.com.

Built the tokenization and multi-brand theming foundation - Token Studio → Style Dictionary pipeline with CI/release automation - reducing theme foundation work from weeks to days and enabling QuantumLeap, PayPal Everywhere, and Fastlane launches with strong design-system alignment and zero breaking changes.

Built performance governance and improved release velocity: created a bundle size analyzer/visualizer integrated into PR reviews and CI/CD; migrated Jest → Vitest, cutting CI test runtime from 20-25 min → 2-3 min (85-92% faster); co-led E2E stabilization to reduce flaky reruns and shorten release cycles.

Built reusable React components and UI patterns, improving library functionality, stability, and adoption.

Migrated the component library from JavaScript to TypeScript, improving reliability and maintainability.

Introduced E2E testing practices to ensure the functionality and integrity of the application.

Implemented WCAG AA accessibility standards (@axe-core/react, static analysis, axe CLI).

Built React UI components and functionality for a cross-platform desktop app using Electron and GraphQL.

Led improvements to the release process moving from ad hoc releases to weekly by setting a release calendar and team rotation, and breaking changes into smaller releases; introduced nightly builds for fast feedback on main.

Integrated drilling dump analysis tools into the project using MoleculerJS and Node-API (Node.js).

Implemented a plug-in architecture enabling seamless integration of Native C++ and Python modules with a Node.js server.

Built an accounting system for long-lead purchases (.NET Core, JavaScript), supporting ~1,000 purchases/year, including multi-million-dollar items.

Performed bundle-size optimization (reduced the output bundle size of deliverables by 30% by implementing lazy loading, modules deduplication, and package replacements).

Raised quality and maintainability through TDD, CI, code reviews, and static analysis.

Led architectural and technical decisions to deliver performance, scalable, and high available microservice applications with .NET Core and Azure.

Provided technical leadership for local and remote teams; grew the team from 8 to 20 engineers.

Designed and maintained architecture views, documentation, decision logs and R&D activities.

Partnered with client stakeholders to shape midterm technical priorities and the roadmap, proactively mitigating delivery and operational risks.