Zachary Hill - Software Engineer

Senior Full-Stack Software Engineer with over six years of experience architecting and delivering end-to-end software solutions, from mission-critical systems at a global FinTech leader to bespoke platforms for a diverse client portfolio. Proven expertise in Node.js, React, and AWS, with a track record of launching global payment integrations, developing privacy-centric SDKs, and building automation tools that save hundreds of operational hours. Adept at bridging the gap between technical teams and business stakeholders to translate complex requirements into robust, scalable, and impactful products.

TradeOff Software Remote

Senior Full-Stack Software Engineer | 2024-Present

As a senior consultant and engineer, I partner with a diverse portfolio of clients to solve their most pressing technical challenges. I lead the end-to-end project lifecycle—from architectural design and strategic roadmapping to hands-on development and deployment—delivering bespoke, high-impact software solutions that drive business growth and operational efficiency.

Enterprise Server Compliance & Automation Platform: For a major SaaS client, I architected and built a full-stack automation platform to solve a critical operational bottleneck: manual server compliance checks. The system features a Go-based agent that securely executes bash scripts and system file analysis on enterprise servers (including SAP environments). I also engineered the corresponding GraphQL APIs in Node.js/TypeScript to ingest and process the compliance data, providing a real-time monitoring dashboard. This solution eliminated hundreds of hours of manual IT work monthly and provided 100% accurate, auditable compliance reporting.
Strategic Payment System Migration: I led a high-stakes migration of a legacy payment system from Stripe to Chargebee for a client in the legal travel sector. I orchestrated the entire technical transition for their Django-based platform, ensuring zero-downtime and preserving data integrity for all recurring subscriptions. The project involved re-architecting payment processing workflows and managing complex data mapping, ultimately preventing revenue disruption and providing the client with a more scalable subscription management platform.

PayPal San Jose, CA

Senior Full-Stack Software Engineer | 2021 to 2024

Full-Stack Software Engineer | 2018 to 2021

As a Full-Stack Software Engineer, I was responsible for developing and deploying cutting-edge solutions that drove merchant growth and expanded the company's global reach. My key contributions were focused on two major initiatives:

Merchant Re-engagement SDK: I was a core developer on a new privacy-centric Shopping SDK designed to combat customer drop-off. I engineered backend systems in Node.js that allowed merchants to re-engage specific user segments (e.g., cart abandoners, inactive customers) with targeted promotional offers. A primary architectural achievement was creating a system that delivered these offers without exposing the user's personal identity to the merchant, maintaining trust and compliance. This SDK provided a critical new marketing channel for thousands of merchants on the platform.
Braintree Global Payment Expansion: I played an integral role in Braintree's strategic expansion into emerging markets. I developed and implemented complex, scalable integrations with local Payment Service Providers (PSPs) across South America, Africa, and the Middle East. This involved architecting solutions to handle diverse third-party APIs, currencies, and regulatory requirements, ultimately unlocking new revenue streams and enabling payment processing in previously unsupported countries for the first time.