Full-stack & cloud freelance developer in Paris.

I design, deploy and operate your applications, from API to cloud.

4+ years experience 10 sectors 20 projects delivered
Eng. Omar, développeur full-stack et cloud freelance à Paris

About

Eng. Omar au travail sur un projet client
Eng. Omar

Full-stack & cloud developer · Freelance

4+ years experience Full-Stack & Cloud AWS & Azure React / Spring Boot

Full-stack & cloud developer, freelancing.

After four years designing and deploying web applications as a developer, in equipment services and sustainable engineering, I am now available for freelance work under the Consaltia brand.

Over those years I covered the whole chain: API and microservice design, backend and frontend development, database modelling, CI/CD pipelines, containerisation and cloud deployment on AWS and Azure. I worked in Agile teams, led code reviews, mentored junior developers and shipped to production in demanding, regulated environments.

Today, I put that experience directly to work on your projects: one point of contact, end to end.

Tech stack

Java / Spring Boot Python Node.js React / Next.js Angular REST / GraphQL Kafka / RabbitMQ Docker Kubernetes Terraform GitLab CI / GitHub Actions AWS Azure Prometheus / Grafana

Experience

Four years of employed experience, across two companies. The other sectors came from the projects.

G-ON (sustainable engineering)

Full-Stack Developer
September 2024 - Present Paris Permanent

End-to-end design and delivery of internal tools (project management, data migration, chatbot) with full ownership of the chain: APIs, frontend, database, CI/CD, containerisation and cloud (IaC, monitoring).

Olinn (equipment as a service)

Full-Stack Developer
July 2022 - July 2024 Paris Permanent

A Crédit Agricole Leasing & Factoring subsidiary specialising in the rental and lifecycle management of professional equipment (IT, mobile, vehicles, industrial and healthcare hardware) for businesses and public bodies. Development of the fleet-management and contract-tracking applications used by the branch-network teams and by clients.

Services

I focus on three complementary skills, from application design to production operations.

Selected work

Eleven projects detailed here, out of twenty delivered: web platforms, business applications, data and AI.

See the eleven documented projects in detail: context, constraints and solution

Illustrative interfaces, recreated for this presentation. They are not screenshots of the final deliverables. Demos and technical details on request.

How I work

From idea to production, every project follows a clear path: transparent, iterative and committed.

1

Scoping

We define the scope, priorities and budget together: you know what will be delivered, and when.

2

Design

Architecture and technical choices validated with you before the first line of code.

3

Iterative development

Short cycles, regular demos: you watch the product progress and adjust at any time.

4

Quality & testing

Automated tests, code reviews, staging validation: every delivery is production-ready.

5

Deployment & follow-up

Production rollout (CI/CD, cloud), monitoring, documentation. I stay available after delivery.

Testimonials

What the people I've worked with say. Names withheld for privacy.

G-ON

“Antoine single-handedly carried our whole technical chain, from code to cloud infrastructure. A single, autonomous, reliable point of contact, exactly what we needed.”

Olinn

“Two years on our fleet-management and contract-tracking applications, used every day by our branch-network teams and by our clients. Rigorous, autonomous and always mindful of the reliability delivered.”

Detailed references and introductions available on request: contact me.

Frequently asked questions

What clients ask before we start.

Which technologies do you use?
On the application side: React, Next.js, Angular, Node.js and Java / Spring Boot, with REST or GraphQL APIs and PostgreSQL. On the operations side: Docker, Kubernetes, Terraform, GitLab CI or GitHub Actions pipelines, and deployment on AWS or Azure.
Do you work in Paris or remotely?
I am based in the Paris region and work in Paris and its surroundings, on site or remotely. For projects outside the region, the work is done remotely with regular check-ins.
Can you take a project from end to end?
Yes, that is the core of my practice: design, API, interface, database, CI/CD pipeline, cloud deployment and monitoring. You have a single point of contact from scoping through to production.
Can you take over an existing application?
Yes. I have delivered handovers of existing codebases, data migrations onto new schemas and CI/CD setups on applications already in service, with cut-over and no downtime.
What is your experience?
Four years as an employed developer at Olinn and then G-ON, on business applications and cloud delivery pipelines, alongside Consaltia.

Let's talk about your project

Have a project in mind? Write to me and let's discuss the best way to make it happen.

Eng. Omar en réunion de cadrage avec un client