Freelancer profile translated to English.
Back to original languageAbout Johann
Full-Stack Engineer specializing in the design and implementation of robust web solutions in Angular and Symfony. With over 3 years of experience, I have led stack migrations (Angular 8→19, Symfony 5→7) for large companies, improving application performance, security, and stability. I also co-founded two startups where I developed complete platforms in Angular, Node.js, Vue.js, and MongoDB, integrating third-party APIs (Stripe, Copyleaks) and promoting Green IT practices.
Back-End Expertise: RESTful API and microservices architecture, Symfony business layer design, SQL/NoSQL optimization (MySQL, MongoDB, Oracle), and CI/CD pipeline setup on GitLab with Docker, Kubernetes, and GCP. Front-End Expertise: Creation of modern, responsive, and accessible interfaces with Angular, Vue.js, and Tailwind CSS, following best UX/UI practices.
Professional Qualities: rigor, asynchronous communication in remote work, coaching and training of teams up to 15 people, agile approach (Scrum/SAFe), and DevOps culture. Graduated with a Master's degree in MIAGE, I adapt to your business challenges and propose innovative solutions to maximize value.
Available for remote or on-site missions (Antibes/Lyon). Let's connect to bring your projects to life!
French
Native or bilingual
English
Fluent
Can work on-site
Antibes (up to 15km)
Experience
- ORANGEConsultantDIGITAL AND ITFebruary 2025 - Today (1 year and 4 months)06560 Valbonne, FranceWithin the DATA-IA department of Orange Business, I participate in the development and industrialization of 'Cockpit', a strategic web portal designed to provide real-time decision-making indicators to business teams.Key ContributionsFront-end Development: Implementation of a rich and responsive interface under Angular 17 (modular architecture, PWA, lazy-loading) ensuring performance and accessibility.Back-end Design: Implementation of REST and GraphQL APIs with Symfony 6 & API Platform; automated test coverage and adherence to best practices (SOLID, Clean Code).Cloud & DevOps: Continuous deployment on Google Cloud Platform.Methodology: Scoping, execution, and delivery according to the SAFe® framework (Scaled Agile Framework) – participation in PI Plannings, System Demos, and Inspect & Adapt workshops; continuous synchronization with other Agile Release Trains to ensure strategic alignment.Impact Achieved30% reduction in access time to decision-making dashboards through query and caching optimization.Acceleration of the delivery cycle (from several days to a few hours) via a fully automated CI/CD chain.Improvement of software quality (coverage > 90%) and correlated reduction in production incidents.
- KOSMOS DIGITALProject Manager AnalystDIGITAL AND ITJuly 2024 - October 2024 (3 months)Villeneuve-Loubet, FranceScoping & Analysis: Requirements gathering, workshops, formalization in UML (use cases, sequences, components) to align business, tech, and budget.Estimation & SOW: Development of quotes and specifications usable by teams, acceptance criteria, scope/MVP, assumptions & risks.Planning: Gantt / roadmap, WBS, prioritization (MoSCoW), milestones & deliverables, dependency management.Operational Management: ClickUp for client transparency, Jira for development execution; rituals (planning, daily, review, retro), workload/progress tracking (burndown, lead time).Quality & Delivery: QA/UAT coordination, change management, decision traceability, go-live & hypercare.Communication: Clear summaries (project committees/steerco), stakeholder management, arbitration.Impact: Reduction of specification ambiguities, better deadline predictability, and increased client satisfaction rate.
- AzurITCEO AzurIT — IT Support for VSEs/SMEs + Responsible Web DevelopmentTELECOMMUNICATIONSAugust 2023 - Today (2 years and 10 months)Lorgues, FranceCreation of 2 companies. AzurIT: Computer repair and web development in Lorgues, promoting GreenIT, signatories of Planet Tech'Care Datark: Web platform for submitting archaeological documents with AI anti-plagiarism verification, live chat, job search (Angular 17, Node.js, MongoDB)Back-End Development:Development of the Business Layer and its componentsImplementation of a RESTFUL API (SWAGGER)Implementation of the data access layerSetup of the MongoDB databaseSetup of communication with APIs (Stripe, Copyleaks)Writing unit tests to ensure development qualityFront-End Development:Development of various interfaces, modules, and functionalities (ANGULAR 17, NextJS, REST)Analysis:Development of quotes and client needs analysisWriting specifications for applicationsDevelopment and management of Gantt chartsProject tracking via JiraDesign and visual improvement of user interfaces (Figma)Promotion of GreenIT and signing of Planet Tech'Care with AzurITBug fixing reported by the product owner.Corrective and evolutionary maintenance.Assistance with deployment.
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Education
- MASTER MIAGE option INTENSEUniversité Nice Côte d'Azur2024
- Bachelor's degree in MIASHS Computer Methods Applied to Business Management, Computer Programming, Specific ApplicationsUniversité Côte d'Azur2022Licence 3 MIASHS Méthode informatiques appliquée à la gestion des entreprise , Programmation informatique, applications spécifiques
Certifications
- GOOGLE CLOUD PLATFORM FUNDAMENTALSSFAIR2026