Freelancer profile translated to English.
Back to original languageAbout James Warren
Full Stack & Mobile Engineer with 5 years of experience, I support companies in the creation and optimization of their web, mobile, and API applications. My goal: clean, performant, and scalable code.
🛠 Technical Expertise:
- Front-end: Angular Expert (SSR, RxJS, complex architectures). Fluid and modern interfaces.
- Back-end & API: NestJS (Full TypeScript) and Symfony + API Platform (Robust REST/GraphQL APIs).
- Mobile: Hybrid and performant mobile applications with Ionic.
- DevOps & Data: CI/CD pipelines, Docker, MongoDB, PostgreSQL, Elasticsearch.
🚀 What I bring you:
- Custom development: Projects from A to Z, creation of dedicated APIs or migration of legacy code.
- Engineering Rigor: Focus on clean architecture, security, automation, and performance.
- Teaching: Technical trainer, I deliver perfectly documented code and advise your teams.
📅 How I work:
I work exclusively remotely and adapt agilely to your project cycles. My preferred support methods are:
- Fixed-price: Commitment to a specific deliverable with a clear deadline (e.g., create an API, an Angular module, or a mobile app).
- Part-time / Consulting: Code audit, technical spotlight, or support.
To discover my complete portfolio and projects:james-johnson.fr
Need help with your stack? Contact me to discuss it, I respond very quickly!
French
Native or bilingual
English
Conversational
Remote only
Primarily works remotely
Experience
- DOCAPOSTEFull Stack DeveloperOctober 2023 - Today (2 years and 10 months)Paris, France• Conception and evolutionary maintenance of Electronic Archiving Systems (EAS)• Orchestration of distributed architectures (RabbitMQ, Microservices)• Securing access via Keycloak (RIAM) and NF Z42-013 standards• Massive search and indexing services: Elasticsearch• Technical stack: React, Symfony, MongoDB, Elasticsearch, RabbitMQ, Docker
- DOCAPOSTEFull Stack Development EngineerDecember 2022 - October 2023 (10 months)Paris, France• Development of Full Stack Web Applications (React / PHP Slim)• Corrective and evolutionary maintenance of archiving solutions• Implementation of CI/CD pipelines and Docker containerization
- HIERO SOLUTIONFull Stack DeveloperOctober 2021 - November 2022 (1 year and 1 month)Paris, France• Front-end development with Angular and Back-end with Node.js (Express), Firebase, and Python• Integration of payment modules (Stripe, Paypal)• Implementation of performant search engines: Algolia and Typesense• Application maintenance and debugging
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Education
- Master's in Web DevelopmentDigital Campus Paris2023Mastère Développement Web
- Bachelor's in Web DevelopmentIESIG Paris2021Bachelor Développement Web