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Antonio Melgarejo

@antoniomelgarejo

I build scalable Angular enterprise platforms, microfrontends, and design systems.

I've built enterprise Angular applications for Smurfit Westrock at Veleta Solutions, leading frontend architecture for sales management platforms, microfrontends, and reusable design systems.

I designed Angular architecture with NgRx, REST and GraphQL integrations, Azure DevOps CI/CD pipelines, and shared libraries that support scalable development across teams.

For Smurfit Westrock, I built a Module Federation microfrontend platform, including its authentication and navigation shell, centralized authorization, and role-based access control. I also created a Storybook component library aligned to the company’s UI/UX guidelines.

Across OpenExO, Sngular, Fon Technology, Minsait, and Letter Ingenieros, I've delivered Angular, React, Python, Django, NestJS, and GIS applications while working with Scrum, Kanban, UX/UI teams, and AI-assisted development workflows.

Experience

Work history, roles, and key accomplishments

Senior Frontend Engineer | Frontend Architect

Veleta Solutions S.L.

Oct 2020 - Jul 2026 (5 years 9 months)

Designed and developed enterprise applications for Smurfit Westrock, leading frontend architecture decisions and implementing scalable Angular solutions. Built a complete enterprise sales management platform, a microfrontend platform, and a design system.

Angular NgRX TypeScript RxJS Signals Module Federation Microfrontends Design Systems Storybook REST GraphQL Azure DevOps CI CD Scrum GitHub Co Pilot

Freelance Frontend Developer

OpenExO

Mar 2019 - Sep 2020 (1 year 6 months)

Designed, developed, and tested enterprise Angular applications, implementing Redux architecture with NgRx. Built SPAs, reusable components, and landing pages, and contributed to the company's design system.

Angular NgRX Redux REST GraphQL Hugo Docker Git Scrum Kanban

Frontend Developer

Sngular

Dec 2017 - Feb 2019 (1 year 2 months)

Developed enterprise applications using Angular 5/6 and backend services with NestJS. Developed hybrid mobile applications using Apache Cordova, applying BEM architecture and component-based development.

Angular NestJS Apache Cordova BEM Component Based Development

Frontend Developer

Fon Technology

Mar 2017 - Dec 2017 (9 months)

Developed a large-scale management platform for routers, access points, and connected users, including dashboards, reusable widgets, and configurable UI components. Optimized rendering performance and migrated legacy components to React.

React Java SQL MySQL Performance Optimization UI Components

Frontend Developer

Minsait (Indra)

Mar 2016 - Feb 2017 (11 months)

Developed enterprise educational platforms using ExtJS and AngularJS, with a reusable SCSS architecture. Contributed to a platform later adopted by Instituto Cervantes for managing Spanish nationality examinations.

EXT JS AngularJS SCSS Educational Platforms

Scrum Trainer / Agile Consultant

Independent

Dec 2016 - Dec 2016 (0 months)

Delivered Scrum training and practical workshops for an agricultural company, coaching teams on Agile practices.

Scrum Agile Training Coaching

Full Stack Developer

Letter Ingenieros

Jun 2015 - Mar 2016 (9 months)

Developed enterprise applications using Python and Django, automating business processes through scripting. Developed GIS applications using MapServer and managed cloud infrastructure and Linux servers.

Python Django MapServer GIS Linux Cloud Infrastructure

Education

Degrees, certifications, and relevant coursework

University of Granada

Master's Degree in Secondary Education, Education

2019 - 2020

Master's Degree in Secondary Education from the University of Granada, completed in 2020.

Lappeenranta University of Technology

Master's Degree in Information Technology, Information Technology

2014 - 2015

Master's Degree in Information Technology with a thesis on an Android application for event management across multiple cities. Main subjects included Python, Django, and Mobile Development.

University of Granada

Bachelor's Degree in Computer Engineering, Computer Engineering

2008 - 2014

Bachelor's Degree in Computer Engineering with relevant coursework in Software Engineering, Algorithms, Artificial Intelligence, Parallel Computing, Computer Architecture, Java, C++, SQL, PostgreSQL, and MySQL.