Freelancer profile translated to English.
Back to original languageAbout Julien
Lead Full-Stack Developer with 10 years of experience in designing and developing scalable and high-performance web solutions.
🎯 My expertise:
• Architecture and technical scoping of complex features
• Full-Stack Development: Node.js (NestJS), Vue.js/Nuxt, GraphQL, TypeScript
• Performance Optimization: from 4-5h to 40min for processing millions of listings
• Technical Leadership: mentoring teams of 10+ developers
• DevOps: CI/CD, Kubernetes, 50% reduction in pipeline times
💡 Certified Apollo GraphQL Professional - Expert in modern API architecture
📍 Based in La Roche-sur-Yon (Vendée) • Remote or local missions
English
Fluent
French
Native or bilingual
Remote only
Primarily works remotely
Experience
- Norauto InternationalLead DeveloperE-COMMERCEOctober 2022 - Today (3 years and 8 months)Lille, FranceTechnical lead for a multi-brand e-commerce platform (Norauto, Auto5) generating €1M in daily revenue in France and €1.6M in Europe (~10k orders/day).🔧 Daily Responsibilities:• Technical Scoping: transforming business needs (PO) into detailed technical briefs for a team of 10 developers• Architecture of Complex Features: multi-device session system, business widgets (tire selection), customer journeys with business constraints• Systematic Code Review and Technical Support for the Team• Architectural Decisions and Technical Arbitrations• Continuous Optimization of Processes and Code Quality🎯 Major Contributions:• Major Technical Migration: Nuxt 2 → Nuxt 3 / Vue 2 → Vue 3 completed independently• CI/CD Optimization: 50% reduction in pipeline times + complete automation of the GitLab/Jira workflow• Design of a "sequences" system (state machine) to orchestrate complex customer journeys (center, vehicle, eligibility conditions)• Refactoring of sensitive technical architectures with backward compatibility managementStack: Node.js, NestJS, Nuxt 3, Vue 3, GraphQL, TypeScript, TailwindCSS, GitLab CI/CD, Kubernetes, Redis
- Norauto InternationalFull-Stack DeveloperE-COMMERCEJuly 2021 - October 2022 (1 year and 3 months)Lille, FranceDevelopment of features for the multi-brand e-commerce platform.🔧 Main Missions:• Implementation of New Features• Bug Fixing and Performance Optimization• Improvement of the Existing Technical Stack• Code Review and Technical Support for TeamsStack: Node.js, NestJS, Nuxt/Vue 2, GraphQL, TypeScript, Apollo, TailwindCSS
- WebTech Institute | Web & TechnologiesGraphQL TrainerEDUCATION AND E-LEARNINGJune 2021 - June 20212-day training for a class of 12 students via videoconference.• Explanation of GraphQL Functionality• Schema Definition• Creation of Queries, Mutations, and Subscriptions• Setting up a Complete API• Final Evaluation
Reviews
Benoit
Freelance
Reviewed on 4/21/2021
I had the opportunity to work collaboratively with Julien. Julien is a competent developer, he brought me a lot. I recommend him to anyone looking for a competent developer in web application development (especially VueJS) and system administration.
For this particular mission, Julien gave me very good advice and supported me in deploying micro-services on Docker and developing an application in VueJS. I highly recommend him.
Recommendations
FU
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Education
- Data ScientistOpenClassrooms2020Titre de Niveau 7 Parcours Ingénieur Machine Learning ✨ Descriptif des Projets : * Définissez votre stratégie d'apprentissage * Concevez une application au service de la santé publique * Anticipez les besoins en consommation électrique de bâtiments * Segmentez des clients d’un site e-commerce * Catégoriser automatiquement des questions * Classez des images à l’aide d’algorithme de Deep learning * Développez une preuve de concept * Participez à une compétition Kaggle !
- Multimedia Project Manager, DevelopmentOpenClassrooms2019Titre de niveau 2 Le jury valide les compétences pour le parcours chef de projet multimédia. Le travail est sérieux et les outils de gestion de projet bien maîtrisés. Les développements sont bien réalisés, avec l'acquisition de nouveaux langages au cours de la formation. Bonne continuation.
Certifications
- GraphQL Developer - ProfessionalApollo GraphQL2023
- GraphQL Developer - AssociateApollo GraphQL2022