Available to hire
Hi, I’m Romain Julien, a Senior Front-end Engineer specializing in React.js with 8+ years of experience building and scaling web applications from MVPs to production-grade platforms. I focus on performance, clean code, testing strategy, and thoughtful use of AI-assisted development tools to unblock teams and ship features faster.
I’m currently based in Valencia, Spain, collaborating with product and design to deliver user-focused features while continuously learning and adapting to evolving frontend technologies.
Skills
Language
French
Fluent
English
Fluent
Spanish; Castilian
Advanced
Work Experience
Front-end Lead Developer at Ninite
June 1, 2022 - October 1, 2025Led front-end development to deliver a stable, scalable, and maintainable codebase while balancing product priorities. Conducted extensive code reviews to enforce standards and improve quality. Maintained and evolved core front-end architecture, including migrating from CRA to Vite.js to modernize tooling. Served as primary front-end contact within the team, unblocking colleagues and ensuring smooth feature integration. Drove adoption of best practices such as reusable components, performance optimization, and AI-assisted development workflows (Cursor, Claude Code), plus comprehensive code documentation. Defined and implemented a new front-end testing strategy using Cypress and Vitest, aligned with the team’s workflow and product requirements. Collaborated cross-functionally with product, design and backend teams to deliver high-quality, user-focused features in a fast-paced environment. Contributed to long-term technical decisions while maintaining hands-on involvement in code and p
Full-Stack Web Developer at Ninite
May 1, 2017 - May 1, 2022Delivered end-to-end features in an agile, startup setting; built and maintained full-stack web apps; participated in early architectural decisions; collaborated closely with product and design for quick iterations.
Bachelor Thesis Project at The University of Queensland
March 1, 2016 - December 1, 2016Built a real-time collaborative code editor using Ace, Node.js, Express. Implemented Operational Transformation to ensure live synchronization and delivered a full-stack solution as part of a two-person team.
Intern Software Engineer at Synyati Enterprise Systems Pty Ltd
December 1, 2015 - December 1, 2016Part-time developer in a small travel-industry software team. Debugged and added features across front-end and back-end (Java EE, JSF).
Education
Bachelor's Degree in Software Engineering at The University of Queensland
January 1, 2012 - January 1, 2016Bachelor's Degree in Software Engineering at The University of Queensland
January 1, 2012 - January 1, 2016Bachelor Thesis Project at The University of Queensland
March 1, 2016 - December 1, 2016Qualifications
Industry Experience
Software & Internet, Professional Services, Media & Entertainment
Skills
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