Alexis Lucas

Front-end Web Engineer

With over 8 years of experience in front-end web development and dev ops, built across Dublin and France, I offer my skills as a freelancer based in Lyon. My creativity, curiosity, and passion for the JS ecosystem are assets I'm eager to bring to your projects.


Skills

(Select a skill to filter the experiences and side projects that use it)


Experience

Scalian (client: Bedrock) - Senior Front-end Developer

September 2025 – May 2026 (8 months)
Lyon, France
  • Rearchitected the player towards a slot-based system, simplifying the integration of new features through a more declarative and type-safe composition.
  • Improved developer experience and team productivity by addressing various bottlenecks: local development issues across mono-repos, poor package isolation, TypeScript coverage reporting, and test flakiness reporting.
  • Strengthened application resilience and user experience by fixing mobile accessibility bugs and optimizing authentication strategies.
  • Contributed to several Proofs of Concept to improve the technical stack, notably around Turborepo, and to help QAs make full use of Playwright.
  • Regularly shared research and insights with the team on technical watch topics, covering new tools, emerging practices, and local AI usage.

lePERMISLIBRE - Senior Front-end Developer / Tech Lead

June 2023 – December 2024 (over 1 year)
Lyon, France
  • Designed and shipped new features for applications used by instructors, students, and internal teams, improving UX, internal processes, and customer satisfaction.
  • Wrote technical designs and POCs to prepare upcoming features, enabling earlier planning, better task breakdown, and a smoother development process.
  • Took ownership of the gradual improvement of our technical stack, reducing development time, lowering the likelihood of bugs, and increasing maintainability.
  • Served as the front-end team’s representative across other chapters, helped define its long-term vision, and promoted best practices and code quality to ensure consistency across rules and processes.
  • Enjoyed stepping outside my usual scope to contribute to Agile processes and set up methodology resources on Notion.

Toast, Inc. - Senior Front-end Software Engineer

January 2020 – May 2023 (over 3 years)
Dublin, Ireland
  • Collaborated with multiple teams on critical challenges following Agile methodology, and regularly contributed to the front-end community to share knowledge.
  • Designed, maintained, and tested several authentication and authorization libraries for front-end applications communicating with micro-services, making those applications more secure and reliable.
  • Built and improved internal tooling to streamline front-end application development and debugging.
  • Contributed to the design system component library, enabling simpler adoption and a more consistent experience across products.

Toast, Inc. - Full-stack Web Development Intern

September 2018 – February 2019 (5 months)
Dublin, Ireland

Worked in a team following Agile methodology on a REST micro-services architecture and front-end applications (SPAs), enabling restaurants to integrate third-party services and access new features.

Exakis Nelite - Front-end Web Developer

July – September 2018 (2 months)
Aix-en-Provence, France

Created custom visuals for Business Intelligence platforms and dashboards for companies and local authorities.

Exakis Nelite - Mobile Development Intern

January – May 2018 (4 months)
Aix-en-Provence, France

Built a cross-platform mobile application raising awareness about cybercrime and cybersecurity, using the .NET framework and Xamarin.

    C#

    Xamarin

Altereo - Full-stack Web Development Intern

April – July 2017 (3 months)
Venelles, France

Developed new modules and improved the existing WordPress website. Migrated MySQL databases from the legacy site and ensured data compatibility.

e-partenaire - Full-stack Web Development Intern

September – October 2016 (2 months)
Aix-la-Duranne, France

Created, updated, and optimized websites for businesses and individuals.


TFT Double up companion

A companion app for duo games in Teamfight Tactics, showing in real-time what units your partner is looking for.

This Resume

This very resume you’re currently reading! Built with Astro, which generates static pages with no client-side JavaScript.

Pharaon

A web tool that splits text by syllable and assigns colors to each. Particularly useful for multisyllabic words in French rap lyrics.

Knucklebones

Adaptation of a dice mini-game to play against friends or an AI. Real-time communication via WebSocket hosted on CloudFlare.


Education

CESI Ingénieurs - Computer Science Engineering, Software Specialization

September 2015 – July 2020 (almost 5 years)
Aix-en-Provence, France