Christopher H.

- Built and evolved customer-facing and internal commerce platforms supporting large-scale retail operations using React, Node.js, Python, and PostgreSQL. - Owned end-to-end implementation of complex features spanning UI, backend services, and data layers—from design and estimation through production rollout. - Led technical decisions around scalability, performance, and maintainability for systems supporting high-traffic seasonal demand. - Integrated AI-assisted tooling to streamline internal workflows, reporting, and operational decision-making. - Refactored legacy systems to improve reliability, reduce technical debt, and accelerate development velocity. - Provided technical leadership through code reviews, architecture discussions, and mentorship, while remaining deeply hands-on in the codebase.

- Designed and maintained high-scale backend services using Python, Node.js, and Ruby on Rails, supporting consumer-facing products with millions of users. - Built and optimized internal and external APIs consumed by multiple frontend surfaces and partner systems. - Worked in a high-ownership, fast-iteration environment, contributing production code across large shared codebases. - Led refactors and system improvements to address performance, reliability, and long-term scalability. - Collaborated closely with product managers, designers, and frontend engineers in cross-functional product teams. - Acted as a go-to engineer for diagnosing complex production issues and improving system observability.

- Developed full-stack web applications using JavaScript, PHP, and SQL for client-facing and internal systems. - Implemented authentication, data management, and reporting features across multiple projects. - Collaborated with senior engineers on system design, technical planning, and feature estimation. - Supported deployments, bug fixes, and incremental improvements in production environments. - Built a strong foundation in scalable web development, database-driven applications, and clean coding practices.