Hi, I'm Peter Holcomb

A fintech startup building blockchain-based international money transfer solutions

Led development of a B2C fintech platform enabling international money transfers via Solana blockchain with escrow-based transactions and real-time status updates.

• Architected escrow-based money transfer system using Solana smart contracts
• Implemented Temporal.io workflows for resilient, multi-step financial transactions
• Built real-time transaction status updates with Ably WebSocket integration

A sailing technology startup building tools for competitive sailors and race organizers

Built a real-time sailing race replay platform with GPS tracking, boat performance analytics, and interactive map visualization

• Developed real-time race replay system with playback controls and boat trail visualization
• Integrated Google Maps API with custom controls for satellite view and race tracking
• Built polar diagram system for boat performance analysis with user-uploaded custom polars

Global e-commerce marketplace for handmade, vintage, and unique goods.

Senior engineer on the Design Systems team building the Collage component library in React, PHP, and Vanilla JavaScript; led Etsy.com home page and seller tools overhaul improving performance by 10%; drove accessibility audit, remediation, and cross-team training reducing violations by 60%.

• Spearheaded the Collage design system and component library in React, PHP, and Vanilla JavaScript, enhancing code reusability and consistency across diverse projects
• Overhauled the Etsy.com home page, common header/footer, and seller tools, increasing site performance by 10%
• Led accessibility audit and remediation on Etsy.com, ensuring WCAG 2.1 compliance