software engineer

hey, i'm jesus montes.

I help teams turn unclear product work into architecture, code, release workflows, and production signal across web platforms, backend boundaries, and cloud environments.

selected work

a short version of the last decade.

  1. 2023 - 2026

    PayPal

    Senior Software Engineer

    Scaled a shared web platform for high-traffic pages and helped define reusable architecture, testing, observability, and accessibility practices.

    • 250M+ monthly visitors
    • 33% lower LCP
    • 60% to 80% good load times
  2. 2019 - 2023

    GBM

    Lead Frontend Engineer

    Led frontend modernization across architecture, monorepos, release workflows, and production monitoring for fintech products.

    • 1.5M+ active users
    • 30s to 6s load time
    • 85% to 2% error rate
  3. 2015 - 2019

    DA.SH

    Lead Software Engineer / Full Stack Developer

    Built business intelligence products, custom analytics tooling, charting systems, data connectors, and cloud deployment workflows.

    • BI product rewrite
    • SQL-like query language
    • non-blocking analytics

how i work

  • Frontend architecture that survives growth
  • Performance work with measurable user impact
  • Testing and observability that reduce release anxiety
  • Pragmatic technical leadership for small teams

daily tools

  • TypeScript
  • React
  • Angular
  • Nx
  • Node.js
  • Playwright
  • Jest
  • AWS
  • Datadog
  • Docker

I write about engineering decisions, product tradeoffs, and the small systems that make teams faster.