Freelance Java Tech Lead & Backend Architect
15+ years designing, building and shipping robust, scalable platforms for investment banking, mobility, media and legal-tech. Bring me your technical problem — a new product, a rewrite, technical debt, a production incident, an AI integration — and I'll deliver a solution that actually runs.
Reply within one business day · Free 30-min scoping call · Remote, or on-site in the Paris area
Companies that trusted me with their projects
Services
Fixed-price on a defined scope, or time-and-materials inside your team. You describe the problem — I bring the solution, the estimate and the schedule.
From blank page to production: your web application or SaaS platform, designed and built end to end.
I frame the technical target, set the architecture, and bring your team along so they can hold it over time.
Not a throwaway demo: AI capabilities wired into your domain, your data and your existing systems.
Your application packaged, deployed and monitored — with a pipeline that ships without drama on a Friday afternoon.
A project going sideways, an app that crawls, technical debt blocking releases? I step in, diagnose, and come back with a costed plan.
Udemy instructor with the highest-rated course in its category. I train your teams on what I practise on real engagements every day.
How I work
A simple, no-surprise process, from the first call to production.
30 minutes to understand your need, your context and your constraints. I'll tell you honestly whether I'm the right fit — and point you elsewhere if I'm not.
Within 48 hours: scope, proposed technical solution, schedule, deliverables and price. Fixed-price or time-and-materials — your call.
Short iterations, regular demos, code pushed to your own repository. You watch the product take shape instead of reading status reports.
Deployment, documentation, knowledge transfer to your team. I leave behind a project your developers can actually own.
Expertise
Technologies I run in production, not just on slides.
Pivotal Certified Spring Professional 4.0
Case studies
Demanding contexts: regulatory compliance, multi-tenancy, high volume, distributed teams.
Multi-entity SaaS platform built on a microservices architecture (30+ Maven modules). Electronic signature of notarial deeds (MICEN/ADSN), natural-language AI research assistant, revenue reporting module per notary office.
A product designed, built and operated end to end: 5 microservices, an AI soft-skills coach with real-time interview simulation, a professional personality assessment and technical mini-tests.
Visit siteDesigned and built from scratch the product-information and SEO page management application for BlaBlaCar Bus across Europe and Russia.
Tech Lead on a microservices service layer with Event Sourcing, built to meet the European MiFID II directive.
Web application for TV audience analysis used by Médiamétrie clients, built on Médiamat data.
Business applications for public transport and telecoms: disruption information management (Illenoo network), administration of the IXXI mobility repository (Neptune/GTFS import/export), and the CMS behind the sfr.fr portal.
Courses
Udemy instructor: courses built on real projects and the actual needs of engineering teams.
Microservices architecture, Spring Cloud, API Gateway, Service Discovery, Config Server, Spring Security & JWT, resilience, Docker Compose, monitoring.
A complete Angular course built around a real project, from A to Z.
Building a full microservices project with a hands-on, progressive approach.
An introduction to Python through practical projects to master the fundamentals.
These courses are also available as in-house training, tailored to your context and your stack.
See my courses on UdemyAbout
Freelance Java Tech Lead & Backend Architect
I've been a software engineer for over 15 years. I started on Java/J2EE business applications and never stopped following where the ecosystem went — from GWT to Angular, from J2EE to reactive Spring Boot, from application servers to Kubernetes.
What I enjoy is turning a fuzzy business need into a clear architecture, then into a product that runs in production and that the team can keep alive. I've worked in very different contexts — regulatory compliance in investment banking, multi-country SEO at BlaBlaCar, audience measurement, passenger information, legal-tech — and that variety is what lets me move fast on an unfamiliar problem.
I'm also a co-founder of Jobidate and a Udemy instructor. In practice that means I know what it costs to run a product yourself, and I can explain a technical decision to someone who isn't a developer.
FAQ
Both. Fixed-price works when the scope is clear: I commit to a price and a deadline. Time-and-materials suits team reinforcement or an evolving need: billed per working day, with a committed availability. We decide together during scoping.
It depends on the type of engagement (development, tech lead, audit, training), its duration and the working mode. I send a costed proposal within 48 hours of our scoping call, with no commitment on your side.
Yes, most of my engagements are remote, with regular check-ins and demos. I can also work on-site in the Paris area, or hybrid — which is often the best way to kick off a project.
Java and Spring Boot are my core, but I deliver complete projects: Angular or React frontend, database, containerisation, CI/CD and go-live. I've also built and taught in Python and TypeScript.
Yes, that's a significant part of my work. I start with a short audit: reading the code, mapping technical debt, identifying risks. You get a clear picture and a costed action plan before any development starts.
I invoice as an independent contractor, under a proper services agreement (scope, deliverables, intellectual property, confidentiality). The code produced belongs to you.
It depends on my current workload. Get in touch describing your need: I reply within one business day with my real availability and a first take on your problem.
Yes. My Udemy courses (microservices & Spring Boot, Angular, Python) also exist as in-house training, adapted to your stack and your projects, with hands-on workshops on your own code.
Contact
Describe your need in a few lines. I reply within one business day, and the first 30-minute scoping call is free.
Location
Versailles, Paris area — remote or on-site engagements
Response time
Within one business day