Joey Etamity

Platform and tooling engineer, 15 years writing code professionally, the last 9 in full-stack web. I build things that make other engineers faster. React, TypeScript, AWS (certified since 2022). I design systems, make technical calls, and push AI adoption where it actually helps. If something needs building and nobody's built it yet, I'm the one who does.

Senior Software Engineer at Capital One (2018-10 – Present)

Most senior IC on a team of 7. I build agent tooling used daily by 200+ contact centre staff, plus internal platforms used beyond my own team. I'm the one people come to for technical decisions, project history, refinement, and unblocking. I'm on a monthly on-call rota for production systems.

• Superpower (AI browser platform): I designed and built this from scratch and made the key architectural calls. It's a TypeScript monorepo with a hybrid AI setup: local models handle sensitive stuff so data stays on-device, cloud models handle complex tasks behind an enterprise filter. I built the plugin system (modelled on Chrome extensions) and the slash-command skills for summarisation, data extraction, slide deck generation, and Jira lookup. Multiple teams outside my own use it for document creation, workflow automation, and incident analysis.
• Full lifecycle delivery: I've led delivery of production systems end to end. Requirements, design, implementation, testing (unit, functional, visual regression, system, accessibility to RNIB standards), documentation. I've shipped customer-facing and agent-facing platforms under tight deadlines, mentored junior engineers, and built real-time communication tooling on Amazon Connect with FCA-compliant workflows. I document product journeys so future teams can pick things up without me.
• AI adoption: Part of the group driving AI adoption across teams. I helped engineers integrate AI into code review, test generation, debugging, and incident analysis. Coached senior engineers on how to use it effectively and made sure everyone around me followed the enterprise rules: HSHD data filter, read-only access, no create or delete on internal systems.
• Dev tooling and productivity: Built a Vite/Esbuild-powered dev server, accelerating hot reloads from 30s to 3s (10x faster) and reducing CI/CD testing time by 40% with Dockerized pipelines. Built jxml-react, a YAML-to-React library for dynamic forms, adopted org-wide. Migrated idle EC2 workloads to Lambda, saved roughly £50k a year.

Frontend Developer at Gamesys (2017-07 – 2018-09)

Built an Electron and React drag-and-drop tool so non-technical teams could create promotions without engineering help. Scaled to over 100 campaigns a month. Built a Jira integration that auto-generated promotional offers, cutting turnaround from 8 hours to 15 minutes.

Senior Software Engineer at Kano Computing (2016-11 – 2017-06)

Built gamification APIs for educational apps (Electron, Polymer.js) serving 50k+ monthly active users. Refactored the Node.js and MongoDB APIs with query caching and indexing to bring latency down.

Flash Game Developer at Smart Gaming Group (2011 – 2015)

Built browser games in ActionScript.

BSc in Internet and Multimedia – Glyndwr University (2009 – 2010)