Freelancer profile translated to English.
Back to original languageAbout Fabian
Presentation
Fullstack developer for over 20 years, I act as a technical architect and/or tech lead on high-stakes web projects. I designed and operate a national real estate portal alone (+1M visitors/month)
My uniqueness: I combine architectural expertise with supervision of AI agents to deliver 3 to 5 times faster than a classic team, without compromising on quality. I think the patterns, I drive the technical decisions, the AI writes the code and I verify.
What I love to do:
- Design architectures that handle load, cost, and time
- Take over a legacy codebase and set it right
- Support teams towards fulfillment, for a developer it's being satisfied with what they deliver ;-)
- Choose technologies based on my clients' DNA and their speed/quality objectives
Mastered Stack
- Backend: node.js / Nest, PHP / Symfony, python, ...
- Frontend: Angular, React, Vue, Tailwind, SSR
- Fullstack: Next, Nuxt
- Data: PostgreSQL, MySQL, SQL Server, Redis, Elasticsearch
- Infra & DevOps: Docker, Cloudflare, Scaleway, GCP, GitHub Actions
Types of missions sought
- Architect / Tech Lead — Technical framing, stack choices, code review, mentoring
- Senior fullstack developer — High complexity features, redesign, project takeover
- Technical audit — Performance, cloud cost, debt, scalability
- Integration of AI into the dev workflow — Implementation and supervision of AI agents to accelerate delivery
Method
- Understand the business context before drawing an architecture diagram
- Propose simple solutions, justify each choice with a criterion (performance, cost, time-to-market)
- Deliver in testable increments, every week
- Transfer knowledge — clear documentation, readable code, explicit patterns for the team taking over
A demanding mission?
Contact me, I'll respond the same day!
French
Native or bilingual
English
Conversational
Can work on-site
Marly-le-Roi (up to 30km)
Experience
- ZimoAI-Native ArchitectREAL ESTATEAugust 2021 - June 2026 (4 years and 10 months)Marly-le-Roi, FranceTechnical architect of a national real estate ad portal, designed and operated solo. I define the architecture and infrastructure choices; supervised AI agents generate the code under my constraints.Stack
- Public Front — Symfony 7, Twig, Turbo, Stimulus, Tailwind (via AssetMapper)
- Member Area — Angular SSR (Node)
- API — API Platform (REST + JSON-LD, OpenAPI)
- Database — PostgreSQL 17 + Doctrine ORM
- Search — Elasticsearch
- Cache & queue — Redis (TLS) + Symfony Messenger
- Local Reverse-proxy — Caddy
- AI — Anthropic Claude + OpenAI + custom trained models (ad classification, editorial production)
- Infra — Docker Compose on Scaleway bare-metal (7 VMs) + GCP (Cloud SQL) + Cloudflare
- CI/CD — GitHub Actions + PHPStan
Structuring choices- Multi-app single-domain architecture — Three applications served under a single domain. One CDN surface, one TLS chain, simplified security and TCO.
- Decoupled search — Elasticsearch for ~800k indexed ads, sub-100ms on multi-faceted geo filters. Hot re-indexing without downtime, independent scaling from the database.
- Web / worker separation — Two isolated plans sharing a single Docker image. Long jobs (ingestion, AI, exports) never impact user latency.
- Optimized ingestion — 12+ partner feed connectors (Apimo, Ubiflow, MoteurImmo, MLI…). FTP metadata cache: -98% egress at increasing volume.
- Secure cross-cloud — Scaleway for applications, GCP Cloud SQL for partner data, no public IP exposed.
- Controlled bare-metal — Predictable cost vs managed cloud, full-stack control of latency, no vendor lock-in.
- Industrialized CI/CD — Multi-stage Docker build, tagged releases, rollback in one command.
- Andy LegalFullstack Developer Angular / Django ExpertSOFTWARE PUBLISHINGJuly 2024 - July 2026 (2 years)Fullstack developer for Andy Legal, a legaltech company publishing a SaaS platform for law firm management.Beyond feature development, I set up part of the technical stack and supported the team on agile methodology and the CI/CD pipeline across multiple environments.Key achievements:🧠 AI Assistant “Andy”: legal chat integrated into the app — document analysis and summarization, projections, real-time streaming, markdown and diagram rendering.📬 Complete integrated webmail: native inbox in the app, drafting, attachments, automatic linking of exchanges to files.🗓️ Custom calendar: custom component (drag & drop, recurring events, invitations), synchronization with Gmail, Exchange, IMAP/SMTP.📄 Document management: integrated document editor (Syncfusion) and Microsoft Office add-ins (Word & Outlook) connected to the platform.👥 Multi-profile collaborative portal: 3 applications (lawyers, clients, partners) on a shared codebase, fine-grained RBAC (12 roles), multi-tenant.💳 Invoicing: invoice management and online payment via Stripe Connect.🌍 Runtime i18n FR/EN, real-time WebSockets (notifications, collaboration), modern Angular architecture (Signals, standalone components, OnPush, Zoneless).Technical stack:Andy Legal SaaS Application• Frontend Angular 21 / Tailwind 4 / PrimeNG / Syncfusion• Backend Django / PostgreSQL• Stripe Connect• Auth MSAL Azure (Entra ID / CIAM)CRM Application• Frontend Angular 21 / Tailwind 4 / PrimeNG• Backend Symfony 8 / API Platform / PostgreSQL• Stripe• MSAL AzureClient Widget• Nuxt 4 / Tailwind 4Project Tracking Jira — Repos & CI/CD GitLab
- A-LEX
On Malt
FullStack Developer Angular / DjangoLEGALJune 2024 - July 2024 (1 month)- Bootstrap Angular application- Create Angular architecture- Integrate Tailwind- Create Tailwind theme- Integrate PrimeNg- Customize PrimeNG SCSS- Integrate Keycloak- Support integration (http Interceptors / Services / Components / Form Types)- Angular Best Practices- Some Backend consulting
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Education
- DEUG MIASUniversité de Rouen1998Formation en mathématiques et informatique appliquées aux sciences. Pascal, Delphi, Php, Python, SQL, Unix, Linux, Algorythmique.
Certifications
- Apprenez à créer votre site web avec HTML5 et CSS3Openclassroom2015
- Develop your website with the Symfony2 frameworkOpenclassroom2015