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Lucas LerouxLL

Lucas Leroux

Expert Frontend Developer - Angular/Node.js

€350/day
Montpellier, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Lucas

Full-stack developer with over **5 years of experience**, I specialize primarily in **front-end**, particularly with **Angular**.

My Skills

Front-end
  • Angular (up to v20): RxJS, Signals, Standalone Components, Zoneless, ..
  • Other technologies : AstroJS, Web Components, Lit Element
  • UI & CSS : SASS/SCSS, Tailwind, Responsive Design
  • Design System : Bootstrap, Angular Material
Quality & Tests
  • Unit Tests : Karma / Jasmine
  • Integration & Functional Tests : Selenium
  • Code Analysis & Quality : ESLint, SonarQube
Build & Bundling
  • Webpack, Vite, esbuild
Back-end
  • Node.js, Express.js
  • Java, Spring
Databases
  • Relational : MySQL, Oracle SQL
  • Non-relational : MongoDB. Redis
CI/CD & DevOps
  • Gitlab, Docker, Kubernetes, ArgoCD
  • Artifact Management : Nexus, JFrog Artifactory

I regularly work on various projects, some long-term, others more occasional likeProof of Concepts(PoC), allowing me to innovate and discover new stacks.

I pay particular attention to **eco-design**, **ergonomics**, **performance**, **accessibility**, but also to code **efficiency**. I appreciate rigor and understanding, not just "making it work".


  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Montpellier (up to 50km)

Experience

  • AS-TECH Solutions
    Lead Developer
    SOFTWARE PUBLISHING
    December 2021 - September 2023 (1 year and 9 months)
    Montpellier, France
    During this project, as the Lead Full-stack Developer for the company's internal ERP solution, I was responsible for the technical, functional, and human aspects.
    My various missions covered the entire product lifecycle:
    • Gathering and analyzing user needs, in close collaboration with business teams (sales, project managers, HR, accountants, ..)
    • Planning evolutions, and assigning tasks to developers
    • Ensuring application quality, user satisfaction, and team well-being
    • Design, development, code testing.
    • ERP integration and deployment
    • Updating technical documentation (Markdown)
    During this experience, I improved my skills in the following technical stacks: Angular, PHP, Oracle SQL, Figma.

    Angular Agile methodology PHP SQL Figma
  • Crédit Agricole Technologies et Services
    Expert Frontend Developer
    BANKING AND INSURANCE
    October 2023 - Today (2 years and 10 months)
    Montpellier, France
    At the heart of the Digital Front Chapter (CDF), I ensure the technical design and consistency of solutions for the various Web Portals of the Crédit Agricole group.

    I work transversally with different teams to provide my front-end expertise.
    This translates in various ways:
    • Creation of shared agnostic libraries to pool code (JS, Lit, TS)
    • Development of HMIs with the implementation of patterns and best practices (Angular, SolidJS, AstroJS)
    • Unit tests (Karma/Jasmine) and integration tests (Selenium)
    • Implementation of CI/CD pipelines: Gitlab, Docker, Kubernetes, Vault, ArgoCD)
    • Mentoring junior and intern developers
    • Participation in "web communities" (~80 members), to lead and present technical topics within the framework of innovation and developer skill development.
    • Updating technical documentation (Markdown, Storybook)
    Aware of CSR issues, I design eco-responsible solutions, combining performance, efficiency, and effectiveness.

    Angular RxJS Docker Gitlab Agile methodology
  • ChallengeMe
    DevOps
    SOFTWARE PUBLISHING
    November 2020 - October 2021 (11 months)
    Montpellier, France
    During this project, I had a hybrid role between development and system administration: DevOps.
    My mission was to improve the internal ERP which allows different group companies to buy together in a single order from suppliers to get better prices.

    I notably:
    • Designed a HMI (Spring Java) and scripts (Shell, Bash) to semi-automate the management of supplier catalogs
    • Administered development and production servers (Ubuntu)
    • Reverse engineered the ERP, then improved it functionally and technically (Java)
    Through this experience, I consolidated my skills in software architecture, automation, and infrastructure management.

    Java Spring boot Linux Bash DevOps

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Education

  • RNCP Level 7 Title - "Expert in Information Technology and Information Systems"
    EPSI - The IT Engineering School
    2023
    Titre RNCP Niveau 7 - « Expert en Informatique et Système d'Information »
  • RNCP Level 6 Title – "Application Designer Developer", IT
    EPSI
    2021
    Titre RNCP Niveau 6 – « Concepteur Développeur d'Applications», informatique

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