Carlos Gutierrez

Carlos Gutierrez

Provenance Ledger · Evidence before claims

Senior Software Engineer

I build and modernize production applications, with a backend-leaning full-stack focus: Node.js, TypeScript, APIs, data-intensive systems, caching, messaging, performance, and reliability. I bring over a decade of hands-on implementation, architectural judgment, and production troubleshooting, with a record of measurable improvements.

Recent work spans payments and pricing systems at Heartland Payment Systems, mobile-commerce backends at Love's Travel Stops, and test-automation tooling at Nintendo. Read the about page for the full arc, the resume for the details, or browse the selected case studies below.

Case studies

  • A Phone-First Whole-Home Inventory SystemPersonal, AI-assisted

    A private, phone-first home-inventory application built around QR labels, an on-device AI catalog assistant, and a LAN-only secure origin, developed as a spec-driven personal project.

  • A Pricing Rules Engine for Large PortfoliosProfessional

    Architecting a full-stack pricing application and rules engine that evaluated repricing scenarios across millions of rows of merchant-portfolio data.

  • Backend Services for a High-Volume Mobile Commerce PlatformProfessional

    Node.js backend services and Kafka integrations behind Love's mobile application, including the high-volume Showers experience used by professional drivers.

  • Building CareerForge with a Two-Seat Agentic WorkflowPersonal, AI-assisted

    A career-development platform built as both product and proof, a modular-monolith TypeScript system developed through a disciplined, independently-reviewed, multi-agent process with a human merge gate.

  • Caching Expensive Analytics QueriesProfessional

    A Redis caching strategy for analytics endpoints backed by expensive Snowflake queries, cutting targeted latency from seconds to milliseconds without changing the API contract.

  • Computer-Vision Test AutomationProfessional

    Python and OpenCV automation that validated game behavior with computer vision, replacing repetitive manual QA work.

  • Modernizing a Sales Analytics PlatformProfessional

    Helping lead a Vue 2 to Vue 3 migration of a data-intensive internal analytics platform, with a reusable component library and safer, feature-flagged releases.