Available to hire
I’m Alexandre Dubar, a freelance full stack engineer and AI-orchestrating developer with 5+ years of experience designing and building web applications (SaaS, business platforms, ERP) and deploying custom AI agents to automate business workflows. I enjoy turning complex requirements into reliable, scalable products—covering technical scoping, system architecture, and hands-on development across front-end and back-end.
I work end-to-end with TypeScript, Python, React/Next.js, and NestJS, and I also bring strong DevOps and technical SEO expertise. From Docker-based deployments and CI/CD (GitLab CI/GitHub Actions) to OpenShift/GCP operations, observability, and performance optimization, I help teams ship safely and efficiently—often in remote, agile environments.
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Beginner
Language
French
Fluent
English
Advanced
Work Experience
Full Stack Engineer at La Poste Groupe
May 1, 2024 - PresentDeveloped a cloud provider platform for internal business teams, delivering front-end, back-end, and DevOps improvements. Built high-performance, modular, maintainable Angular interfaces and robust Python/Django APIs to support complex business processes. Set up and maintained GitLab CI/CD pipelines across a multi-repository architecture, from build to deployment, and deployed/operated applications on OpenShift using containerization and environment management. Modeled and automated workflows using Camunda (BPMN), collaborating with business teams on architecture decisions and functional evolution.
Freelance Mission - Full Stack Developer
January 1, 2023 - January 1, 2025Designed and developed a custom ERP tailored to client needs, focusing on performance, technical flexibility, and business value. Migrated the backend architecture from MongoDB to PostgreSQL to better support a complex data schema and resolve query performance issues. Moved to GraphQL with NestJS for more flexible, typed, and performant APIs. Integrated the Google Maps API to generate geolocated quotes including competitor comparisons, and built an interactive sales performance heatmap and decision-support tool. Participated across the full agile cycle including sprint planning, estimation, design workshops, and technical reviews.
Full Stack Engineer at Notic e
April 1, 2022 - December 1, 2022Developed, maintained, and continuously improved the front-end of an open-code block editor. Migrated from JavaScript to TypeScript to improve reliability, maintainability, and scalability. Rebuilt the core API and added new features to support growing product complexity. Built a block management system with recursive block handling to enable flexible compositions. Developed a widget-based integration system to add blog, FAQ, and documentation to any site. DevOps: containerized with Docker, GitHub Actions CI/CD pipelines, and deployment on Google Cloud Platform (GCP). Performed SEO optimization for strong indexing and organic traffic performance.
Full Stack Engineer - Freelance at Busshid ev
January 1, 2022 - PresentSupported startups, SMEs, and large enterprises with custom web solutions—from technical scoping and product delivery to production deployment. Built SaaS applications, web platforms, and business tools using a full stack architecture (React, Next.js, NestJS, Python, PostgreSQL, MongoDB). Designed and deployed AI agents and business process automation (model integration and intelligent workflows). Industrialized CI/CD pipelines across GitLab with multi-repository architectures, containerized applications, and deployed on OpenShift. Implemented monitoring and observability (Sentry, OpenTelemetry) and delivered performance optimization, technical SEO improvements, and software quality practices. Worked with a focus on reliability and DevOps/AI delivery.
Cybersecurity Challenge Creator - 42CTF at 42CTF
October 1, 2021 - April 1, 2022Designed and developed Capture-the-Flag (CTF) scenarios for a cybersecurity learning platform, including vulnerability exploitation practice. Created interactive challenges to support continuous progression and hands-on learning. DevOps and industrialization: containerized each challenge with Docker for isolation and reproducibility, and set up CI/CD pipelines to automate build and deployment.
Web Developer & Webmaster at French Ministry of National Education and Youth
September 1, 2015 - September 1, 2020Developed and published interactive digital content and mobile applications for the digital content ecosystem. As webmaster, maintained the institution website daily to ensure reliability and uptime. Optimized UX by redesigning navigation and information access for smoother user experience. Coordinated digital projects with stakeholders from design through tool deployment. Developed additional mobile applications to expand the deployed digital tool ecosystem. Also acted as a web developer for interactive educational web applications, handling website development, maintenance, regular updates, content management, database design in MySQL, and server configuration to ensure availability.
Web Developer at French Ministry of National Education and Youth
September 1, 2009 - September 1, 2014Built and managed interactive educational web applications, including website development and maintenance. Managed content updates via a content management approach and ensured continued availability. Designed and administered MySQL databases for content structuring and storage, and managed hosting/server configuration. Developed additional web applications to expand the range of digital tools offered.
Education
Digital Technology Architect at 42 Silicon Valley
January 1, 2020 - January 1, 2021Computer Science at 42
January 1, 2019 - January 1, 2019Master's Degree (Health and Physical Education / Fitness) at Université de Picardie Jules Verne (UPJV)
January 1, 2002 - January 1, 2009Qualifications
Industry Experience
Education, Government, Software & Internet
- Complete migration from a 1700+ line JSX monolith to strict TypeScript (zero any) cut into its own component architecture
- i18n FR/EN end-to-end system
- Non-trivial interactive UI: 8 custom SVG animations, carousel with pause on hover, automatic cycle, synchronization via IntersectionObserver A real running bug solved (the mobile auto-advance broken by a browser throttling on the observers)
- PageSpeed audit→ perf fixes (non-blocking fonts, WebP images) and accessibility (WCAG contrast corrected at the source in the tokens, not on a case-by-case basis)
- SEO/GEO: llms.txt compliance, management of meta tags by locale, understanding the limits of an SPA on the SEO side
- Legal notices/T&Cs adapted with rigor (verification of the code so as not to copy mentions of non-existent cookies)
Product and technical management, implementation assisted by agentic AI:
Freelance portfolio site for BusshiDev: fullstack development, AI agents, and automation. Case studies and online booking.
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