Said Rahal
EN ES
Profile

Senior Frontend Engineer

Madrid, Spain
ReactTypeScriptJavaScriptAI-Enhanced Product Development

Driving the frontend experience at StubHub International, I build scalable, data‑driven web platforms for a global marketplace. With 5+ years of experience, I focus on modern architectures and AI‑powered automation to enhance efficiency and product impact.

€50K/year Saved automating i18n workflows
50% Reduction in deployment time
100+ Professional sellers impacted
~2h saved Per ticket via AI developer workflows

Experience

Senior Frontend Engineer

StubHub International

Jan 2023 - Present
Madrid, Spain

Senior frontend engineer contributing to the professional seller platform of a global ticket marketplace serving millions of users worldwide. Working within a 7-engineer frontend team alongside product managers, designers and backend engineers in Agile development cycles.

  • Led the frontend redesign of the professional seller administration platform used by 100+ professional sellers, improving usability and increasing seller satisfaction by 50%.
  • Built internal AI-powered developer workflows using Claude Code and multi-agent execution to automate ticket implementation, reducing development time by ~2 hours per 13-SP ticket.
  • Automated the i18n workflow using Crowdin AI, Crowdin CLI and GitHub Actions, saving approximately $50K annually and eliminating operational overhead.
  • Defined frontend architectural patterns including component structure, standardized form management with React Hook Form and data-fetching strategies using TanStack Query.
  • Contributed to the architecture of independently deployed frontend applications supported by shared libraries managed in Nx-based monorepos.
  • Led migration of CI/CD pipelines from Concourse to GitHub Actions, reducing deployment time by approximately 50%.
  • Mentored two junior developers through structured code reviews, pair programming and onboarding support.
  • Actively participated in Agile ceremonies including sprint planning, backlog refinement and cross-team technical discussions.

Middle Frontend Web Developer

NTT DATA

Mar 2022 - Jan 2023
Madrid, Spain

Frontend developer in a large-scale enterprise environment.

  • Migrated 50+ legacy components to modern React architecture using hooks.
  • Implemented unit testing strategies using Jest and Enzyme.
  • Managed application state using Redux in large-scale e-commerce environments.
  • Collaborated in Agile Scrum teams with product managers and backend engineers.

Middle Frontend Web Developer

VASS

Oct 2021 - Mar 2022
Madrid, Spain

Frontend developer for institutional portals.

  • Developed modular frontend components within Adobe Experience Manager (AEM) for ICEX Spain's institutional portal.
  • Implemented reusable JavaScript modules for scalable CMS architecture.
  • Collaborated within Agile teams following Scrum methodology.

Frontend Web Developer

Freelance

Apr 2020 - Sep 2021
Madrid, Remote

Delivered web solutions for telecommunications and digital services companies including Digitel and Movistar.

  • Developed React-based applications integrating telecom APIs for mobile top-up services.
  • Designed responsive user interfaces using a mobile-first approach.
  • Delivered full project lifecycle including requirements definition, architecture, implementation and deployment.

Co-Founder & Project Manager

SunRaiser

May 2019 - Mar 2020
Madrid, Spain

Co-founded a photovoltaic energy venture during MBA studies.

  • Coordinated engineering and commercial teams delivering ~1MW of installed solar capacity.

Junior Frontend Web Developer

Corporacion Cardtech

Mar 2018 - Feb 2019
Caracas, Venezuela

Frontend developer for telecom and banking applications.

  • Developed React-based applications integrating REST APIs for telecom top-up services used by Movistar Venezuela and Digitel.
  • Designed and implemented UI interfaces from wireframes to production.
  • Built administration panels for banking systems including Banco Venezolano de Credito POS platform.

Education

MBA

EUDE Business School

2019 - 2020

Telecommunications Engineer

Universidad Catolica Andres Bello

2012 - 2018

Skills

Languages

Spanish

Native

English

Professional

Lab

AI Developer Workflow Automation

Completed

Internal developer productivity tool orchestrating multi-agent workflows to automate Jira ticket implementation, iterative code review and pull request generation using Claude Code.

AI Job Compatibility Extension

In Progress

Browser extension using vanilla JavaScript and a local LLM (Mistral) to evaluate compatibility between developer profiles and job descriptions.

AI Agent Experiment (Google ADK)

Completed

Simple agent using Google's Agent Development Kit integrated with Gemini API to explore LLM-driven task execution.

AI-Generated Web Game

Completed

Browser-based game developed as an experiment in rapid prototyping using AI-assisted coding workflows (Vibe Coding).

View project

Media

La Cuarta Fase - Podcast

Podcast Host

Technology podcast exploring emerging technologies including AI, software development, 5G and extended reality.

Listen on Spotify

Career Timeline

2012 Telecommunications Engineering Universidad Catolica Andres Bello
2018 Junior Frontend Developer Corporacion Cardtech
2019 MBA EUDE Business School
2019 Co-Founder SunRaiser
2020 Freelance Developer Remote
2021 Middle Frontend Developer VASS
2022 Middle Frontend Developer NTT DATA
2023 Senior Frontend Engineer StubHub International