Open to opportunities

Ciaran Fontein

@ciaranfontein

Message

Mobile frontend engineer with 5+ years shipping production React Native apps end-to-end.

Japan

Message

What I'm looking for

I’m looking for a team where I can own frontend/mobility delivery end-to-end—shipping React Native features to iOS and Android, collaborating cross-functionally, and using modern tooling (Git/AWS/AI-assisted development) to improve quality and speed.

I’m a mobile/frontend engineer with 5+ years building and shipping a production React Native application as the sole frontend developer.

I took the app from scratch through iOS App Store and Google Play Store release, owning it end-to-end for 5+ years with feature development, bug fixes, performance improvements, and release management. I implemented and maintained push notification infrastructure and integrated with AWS-based backend services.

I worked cross-functionally with web, backend, design, and product teams from requirements through release, implementing UI from Figma designs. I also handled full technical knowledge transfer and training for an incoming replacement team, using Git/Bitbucket/Jira and AI-assisted development with Claude Code and Codex to speed up development and code review.

Experience

Work history, roles, and key accomplishments

Frontend Engineer (Contract)

Guusto Gifts Inc.

Mar 2020 - Jul 2026 (6 years 4 months)

Sole frontend developer on the company’s React Native mobile app, building it from scratch and shipping releases to the iOS App Store and Google Play Store. Owned end-to-end development and maintenance, including push notifications, integration with AWS-based backend services, Figma UI implementation, and technical handover for a replacement team.

React Native TypeScript JavaScript AWS Git Bitbucket Jira Figma Push Notifications Release Management Cross Functional Collaboration Claude Code Codex

Education

Degrees, certifications, and relevant coursework

Web Development Coding Bootcamp

Coding Bootcamp, Web Development (React, React Native)

2019 - 2019

Completed a coding bootcamp focused on Web Development with React and React Native. Finished the program coursework within 2019.

British Columbia Institute of Technology (BCIT)

Game Development specialization, Game Development

2013 - 2015

Completed a Game Development specialization at BCIT from 2013 to 2015 as part of a bachelor-equivalent program. Final practicum coursework was not submitted, so the degree was not formally conferred.