Hi, my name is

Celsius Emilio Aray

Software Engineer · Frontend & Developer Platform

Software engineering with a focus on testing and delivery tooling, product features, and AI-assisted developer workflows.

10+ years building scalable platforms, currently working across React, Next.js, React Native, TypeScript, Turborepo monorepo, Playwright, and GitHub Actions, with a focus on AI-assisted developer workflows.

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About Me

I own testing and CI architecture, ship product features and build shared developer tooling for production web platforms. I also build AI-assisted workflows where agents enforce code quality, scaffold tests and support CI — as collaborators inside the process, not shortcuts around it.

My day-to-day is TypeScript monorepos, end-to-end and accessibility testing, and delivery tooling.

I run a homelab on Talos Linux (bare-metal Kubernetes, migrated from Proxmox), with GitOps through Flux and Cloudflare tunnels — the same operational discipline I apply to production code.

Core Strengths

  • ▹Frontend Architecture - Page-composition contracts, isolated rendering, TypeScript monorepos
  • ▹Performance Optimization - 60% performance improvement at CleverIT
  • ▹Testing & Quality - Playwright, Vitest, MSW, axe-core, E2E automation
  • ▹AI-Assisted Workflows - Shared rules, sub-agents and skills for developer teams
  • ▹Full-Stack Contributions - Rails API test endpoints powering CI end-to-end suites