Freelancer profile translated to English.
Back to original languageAbout Denis
Angular Web Developer | Node.js | Typescript | +6 years of experience
Do you have a web project and are you looking fora web developercapable of designing afast, stable, and scalableinterface? I support my clients from idea to production, with expertise inAngular, Typescript, Node.jsandBFF (Backend for Frontend)architectures.
I am afreelance web developerwith over 6 years of experience on complex projects inAngularand **Typescript**, ranging from creating high-performance user interfaces to implementing optimized backend modules. My role is to transform your business needs into reliable, maintainable, and product-oriented applications.
Throughout my assignments, I have worked with large companies, SMEs, and startups:
- **Ministry of Finance (AIFE)**: development of modules for managing tenders.
- **ORANGE**: complete redesign of a business application used by fiber optic technicians.
- **SNCF**: implementation of a BFF for managing authorizations.
- **BOULANGER**: creation of a real-time statistics application.
I offerturnkeysupport: project architecture, development inAngular & Typescript,integration ofNode.json the backend, performance optimization, and production deployment. Each deliverable is designed to be **reliable, secure, responsive, and scalable**.
In terms of methodology, I rely onAngular (Signals, NgRx, lazy loading, modularization)**, **Typescriptfor code robustness, and modern CI/CD practices. I also integrateNode.jsandBFFmodels to streamline communication between front and backend.
Let's discuss your project
I respond quickly (often within 1 hour) and offer an initial video call to frame your needs and define the best approach.
French
Native or bilingual
English
Conversational
Can work on-site
Paris (up to 50km), Lille (up to 50km), Lyon (up to 50km), Bordeaux (up to 50km), Nantes (up to 50km)
Experience
- BoulangerAngular DeveloperRETAIL (SMALL BUSINESS)September 2024 - Today (1 year and 9 months)Lesquin, France→ Mission Objective:Optimize and evolve Boulanger's internal applications to improve sales performance tracking and in-store sales management.→ Achievements:✅Front-end web development inAngular and Typescriptto improve real-time visibility of statistics and bonuses, offering more performance and reliability to sales teams.✅MigrationAngular 14 → 18and integration of new features, enhancing perceived quality and scalability of applications used daily by salespeople.✅Management ofdeployment environments and designofbenchmarks**, ensuring **time savingsand betterstabilityfor technical and business teams.✅Analysis and functional design of assigned new features→ Technical Stack:Angular, Typescript, Node.js, NestJS, Git, CI/CD, Bootstrap, Chart.js, NgRx, Kibana, Gravitee, MongoDB, Grafana, SonarQube, Electron, Java, Spring Boot, SCSS, HTML, PlatformTools, Karma, Jasmine, Jest
- SNCF RéseauAngular DeveloperTRANSPORTATIONDecember 2023 - Today (2 years and 6 months)Villeneuve-d'Ascq, France→ Mission Objective:Develop and optimize the SNCF's 365TVX administration module to facilitate real-time monitoring of incidents and interventions on railway sites.→ Achievements:✅Design ofAngularmodules andPrimeNGintegration, improving the perceivedqualityandefficiencyof the interface for business users.✅Identification and sharing of common components, providingtime savings**, **better maintainability**, and **increased performancein web development.✅Definition ofOpenAPI**interface contracts** for the **BFF**, ensuring the reliability of data exchange and the stability of the application ecosystem.→ Technical Stack:Angular, Typescript, OpenAPI, BFF, PrimeNG, Primefaces, MongoDB, Jenkins, GitLab CI/CD, Git, HTML, Java, Spring Boot, Datadog, Figma, Scrum, PrimeFlex, HTML, SCSS, Karma, Jasmine, Bootstrap
- ORANGEAngular DeveloperTELECOMMUNICATIONSMarch 2022 - December 2023 (1 year and 9 months)Lille, France→ Mission Objective:Modernize an Excel application into a web solution for fiber optic technicians, to improve accessibility, efficiency, and reliability in the field.→ Achievements:✅Implementation of thefront-end architectureandAngularweb development withAngular MaterialandTypescript**, offering a **modern**, **performant**, and **user-friendlyinterface.✅Creationfrom scratchof a fiber optic management module, enhancingperceived quality**, **productivity**, and **ease of usefor technicians.✅Development ofunit tests (Karma/Jasmine)and onboarding of new team members, ensuring **time savings**, **better software quality**, and effective knowledge transfer.→ Technical Stack:Angular, Angular Material, Angular UI, Typescript, SCSS, HTML, Bootstrap, Figma, PostgreSQL, GitLab CI/CD, Git, Karma, Jasmine
Reviews
Emilie
Crea&Mi
Reviewed on 9/3/2025
I hired Denis to create my website Planet'Iris, and I am fully satisfied with the result. Denis demonstrated great professionalism throughout the project: attentive, responsive, and proactive.
He understood my needs, provided suitable solutions, and transformed my ideas into a modern, fluid, and perfectly functional website. I particularly appreciated his rigor, his creativity, and his ability to meet deadlines without ever compromising on quality.
His clear communication and attentive follow-up made the collaboration very pleasant. I will not hesitate to hire him again for future projects, and I highly recommend him to anyone looking for a reliable, competent, and dedicated developer.
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Education
- BAC +4Application Developer Designer2020🎓 Formation de concepteur développeur d’applications axée sur la programmation orientée objet en Java, la conception logicielle et la modélisation de données. Cette formation m’a permis de développer une solide compréhension des fondements du développement back-end avant de me spécialiser dans le front-end moderne, où j’ai approfondi mon expertise sur Angular et l’écosystème JavaScript/TypeScript.