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CV - Said Rahal - Senior Frontend Engineer

Said Rahal - Frontend Engineer

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

Projects

Rahal Labs

Rahal Labs brings together the ideas, discoveries and experiments that spark my curiosity. I explore science, technology, space, programming, AI and product, sharing what I try, what I learn and why I think it matters. Articles, podcast episodes and projects, with no filters or fixed agenda.

Explore Rahal Labs