BAFreelancer profile translated to English.
Back to original languageAbout Belgacem
I assist you in the design and development of modern, high-performance, and scalable web applications.
With over 8 years of experience, I work on your front and back projects (Angular, TypeScript, Java Spring, Symfony, Node.js) and bring recognized expertise in architecture (microservices, micro frontends, SSR), cloud & DevOps (AWS, Azure, Docker, Kubernetes), and optimization (performance, SEO, code quality).
I have already contributed to projects for international groups (Rexel, Orange, Autobiz) with measurable results: SEO improvement (95+ Lighthouse), 40% reduction in API response times, code testability increased to 92%, and implementation of scalable deployments.
My goal: to deliver robust, fluid, and user-oriented solutions while guiding your teams towards technical excellence.
English
Native or bilingual
French
Native or bilingual
Can work on-site
Paris (up to 50km)
Experience
- REXEL GROUPTECH LEADENERGY AND UTILITIESAugust 2024 - Today (2 years)Paris, France• Responsible for the Spring-MF project, which powers the Rexel e-commerce site in several countries (FR, DE, US, etc.) by working on key components such as product search, shopping cart management, and the payment system.• Collaboration with international teams (nearshore, offshore) to align technical and product needs, improving the customer experience through optimized and fluid systems.• Development and launch of several PoCs, including:◦ Native Federation (Angular 17-19) with SSR → improved performance, SEO, and UI/UX quality.◦ Micro Frontend Architecture → more scalable deployments and better modularity.• Lighthouse Optimization → SEO score of 95, better performance, and best practices.• Improved testability from 56% to 92% through the implementation of clean architecture, unit tests (Jest), and best practices.• Implementation of design system standards, code reviews, and mentoring of junior developers to enhance team productivity.• Working in Agile/Scrum methodology for continuous alignment with business objectives.
- ORANGE GROUPLEAD DEVELOPERMay 2022 - May 2024 (2 years)• Leading the development and DevOps transformation for the REMU & NV projects, managing invoices, sales, commissions, and partner hierarchy at Orange France.• Development and maintenance of multi-environment applications (QA, UAT, Production) with high availability and scalability.• Design and optimization of the backend architecture in Java Spring + PostgreSQL + Docker, increasing performance and reliability.• Implementation of DevOps best practices: containerization (Docker, Kubernetes), cloud deployments (AWS S3, EC2), GitLab CI/CD pipelines.• Mentoring of junior developers and participation in strategic technical decisions to promote operational excellence. Tech Stack: Java (Spring), Bash, PHP, JavaScript, TypeScript, Angular, Vue.js, PostgreSQL, Docker, Kubernetes, AWS (S3, EC2), GitLab, CI/CD, Jenkins
- AUTOBIZFULL-STACK DEVELOPEROctober 2020 - May 2022 (1 year and 7 months)Paris, France• Development of digital solutions for the automotive resale market, used by Peugeot, Citroën, Spoticar, and Jaguar, optimizing product search, UI, and marketplace features.• Contribution to the Site-Factory application, automatically generating sub-domains for dealerships, facilitating catalog management and real-time vehicle valuation.• Improvement of UX/UI, performance, and security, increasing customer engagement and reducing loading times.• Management of large-scale automotive data via asynchronous architectures (Redis, APIs, microservices).• Optimization of system performance: 40% reduction in API response times and 30% reduction in BDD requests via cache strategies and API optimization. Tech Stack: PHP (Symfony), Angular, TypeScript, JavaScript, HTML, CSS, Redis, DynamoDB, S3, Lambda Functions, AWS EC2, Microservices, API Development
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Education
- DIPLOMA OF COMPUTER ENGINEER2018DIPLOME DE L'INGÉNIEUR INFORMATIQUE
- System design, software engineering BACCALAUREATEMATHEMATICS2012Conception de systèmes, génie logiciel BACCALAUREAT