Need a front-end engineer who delivers results that matter? I build high-impact, scalable interfaces that drive user engagement and business growth for enterprise clients like Intel, GM, PlayStation, and Delta. With 10+ years specializing in Vue.js, Nuxt, and TypeScript, I architect component-based solutions that perform flawlessly under pressure. I've led distributed engineering teams to launch products used by millions—on time, on budget, and optimized for speed.

Jair Reina

Need a front-end engineer who delivers results that matter? I build high-impact, scalable interfaces that drive user engagement and business growth for enterprise clients like Intel, GM, PlayStation, and Delta. With 10+ years specializing in Vue.js, Nuxt, and TypeScript, I architect component-based solutions that perform flawlessly under pressure. I've led distributed engineering teams to launch products used by millions—on time, on budget, and optimized for speed.

Available to hire

Need a front-end engineer who delivers results that matter? I build high-impact, scalable interfaces that drive user engagement and business growth for enterprise clients like Intel, GM, PlayStation, and Delta.

With 10+ years specializing in Vue.js, Nuxt, and TypeScript, I architect component-based solutions that perform flawlessly under pressure. I’ve led distributed engineering teams to launch products used by millions—on time, on budget, and optimized for speed.

See more

Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Beginner
See more

Language

English
Fluent
Spanish; Castilian
Fluent
Portuguese
Intermediate
French
Intermediate

Work Experience

Associate Director of Technology at Prodigious Latin America
December 31, 2015 - December 31, 2015
Directed technical delivery across web platforms with varied scale and complexity; collaborated with product stakeholders and creative teams to ensure aligned development goals. Led engineering teams through complex front-end implementations, introducing component-based structures and mobile-first development practices. Created internal admin tools to manage media assets, user roles, and multilingual configurations.
Production Manager / Creative Engineer at BOSZ Digital
December 31, 2012 - December 31, 2012
Managed project lifecycles end-to-end for client-facing applications; owned implementation of interactive UIs using JavaScript (jQuery), HTML5, CSS3, and JSP/PHP integrations. Introduced responsive design workflows and trained internal teams on modern FE tooling.
Web Developer at QXDev
December 29, 2010 - December 29, 2010
Developed custom web applications using CakePHP, Java, and JavaScript libraries. Designed and implemented frontend interfaces and dynamic content strategies for diverse clients.
Lead Front End - Technical Architect at Digitas North America
September 7, 2015 - Present
Led architecture and development of front-end systems across U.S., LATAM, and offshore teams for Fortune 100 clients, including Intel, GM, and PlayStation. Developed scalable greenfield interfaces using Vue.js and TypeScript for an AI platform focused on dynamic agent creation and management. Created permission-based admin tools for internal applications, including content targeting dashboards and device-level management systems used by Intel retail partners worldwide. Delivered data-driven UIs integrating GraphQL (Contentful) and REST APIs (Python, Drupal), ensuring high performance, accessibility, and modularity. Partnered cross-functionally with UX, PMs, and backend teams to define component libraries and accelerate delivery by 15% through tooling and design systems. Mentored junior developers and fostered best practices in testing, performance, and UI maintainability across multi-region teams.

Education

Bachelor’s Degree in Software at Universidad Latina de Costa Rica
January 11, 2030 - November 9, 2025
Associate’s Degree in Software Development Technologies at Universidad CENFOTEC
January 11, 2030 - November 9, 2025
Bachelor’s Degree in Biomedical Engineering at Universidad Latina de Costa Rica
January 11, 2030 - November 9, 2025

Qualifications

Udacity – AI Programming with Python
January 11, 2030 - November 9, 2025
Coursera – Blockchain Technology
January 11, 2030 - November 9, 2025
Udacity – Nanodegree in React
January 11, 2030 - November 9, 2025
Coursera - Intro to Ruby on Rails
January 11, 2030 - November 9, 2025

Industry Experience

Software & Internet, Professional Services, Media & Entertainment
    paper Atkins

    The Challenge

    Modernize & Simplify a Legacy Website

    • Slow, outdated WordPress site
    • Fragmented platforms → high cost & complexity
    • Needed fresh design to showcase products & build community
    • Risk: Poor UX, low engagement, high maintenance

    My Role

    Technical Architect & Product Manager

    • Prioritized tasks to align with business goals
    • Guided migration & reuse of legacy integrations
    • Simplified tech stack → reduced risk & cost
    • Oversaw redesign, integrations, and process planning

    Tech Stack: Contentful | Next.js | Netlify | GitHub Actions | Cypress

    The Approach

    Simplify. Reuse. Automate.

    • Removed redundant platforms & integrations
    • Leveraged legacy assets → faster, safer migration
    • Designed intuitive, accessible UX
    • Implemented test automation for smooth deployment

    Results

    Faster. Cleaner. More Engaging.

    • 80% faster site performance
    • Streamlined UX → highlights products & community
    • Accessibility fully implemented
    • Simplified stack → lower maintenance & complexity

    Value Delivered

    Turning Technical Expertise Into Business Impact

    I transform complex technical challenges into real business results.
    For Atkins, I worked with Digitas and Corra teams to modernize their tech stack, improve performance, and deliver a high-impact, accessible experience — all while reducing risk and leveraging existing assets.

    paper The Archive Project

    The Archive Project: Streaming Platform for 80,000+ National Archives Videos

    Project Overview

    I led the front-end development for The Archive Project, a digital streaming platform that unlocks access to a curated library of National Archives videos. As front-end lead, I transformed my partners’ vision into a polished, high-performing website that enables users to stream, search, and download historical videos in multiple formats.

    Results: 500 users in 3 months | 20 sign-ups/month | Daily downloads


    The Challenge

    Building a Seamless Front-End for Complex Infrastructure

    My partners had:

    • Extensive back-end infrastructure and business strategy ✓
    • 80,000+ digitized videos requiring responsive, intuitive interface
    • Need for secure authentication and payment processing
    • A service never before available in the market

    They needed: A fully functional, user-friendly front end to bring it all together.


    My Role

    Front-End Lead & UX Collaborator

    • Collaborated closely with partners and designer to ensure intuitive, feasible UX
    • Built fully responsive website with Nuxt.js and Vue.js
    • Managed state with Pinia and integrated with custom API
    • Implemented video streaming with custom video player
    • Developed dynamic video components, Firebase authentication, and Stripe payment integration

    The Approach

    Design. Build. Integrate.

    1. Validated UX & Functionality — Collaborated with designer and partners to refine user flows
    2. Connected Front-End to APIs — Integrated video search, streaming, and download capabilities
    3. Built Dynamic Components — Created reusable, scalable components for video interaction
    4. Secured User Flows — Ensured seamless authentication and payment processing

    The Results

    A High-Quality, Performant Platform

    • 500 users in first 3 months
    • 20+ sign-ups per month (consistent growth)
    • At least 1 video download daily
    • ✅ Fully functional, scalable, and responsive
    • ✅ Ready for continued growth

    The Value Delivered

    Bringing Ideas to Life with High-Impact Execution

    I helped my partners turn their vision into a polished, high-performing digital product. By focusing on:

    • User experience that makes 80,000+ videos accessible
    • Performance optimization for seamless streaming
    • Scalable architecture built for growth

    I demonstrated my ability to bridge technical execution with business impact—making complex ideas tangible and usable for real customers.

    Live Site: [thearchiveproject.com](https://www.twine.net/signin


    Key Technologies

    Nuxt.jsVue.jsPiniaFirebase AuthStripe PaymentsCustom Video PlayerREST API Integration