Freelancer profile translated to English.
Back to original languageAbout Antoine
Fullstack Web Developer | Next.js | Node.js | Typescript
Does your application face technical limitations? Or do you need to frame your project?
I step in to design fast, reliable websites capable of scaling from a simple MVP/V1 to a complete product.
Expert Fullstack Developerwith +4 years of experience, I create robust Next.js/React.js applications, scalable Node.js APIs, and user-centric interfaces. From MVP to SaaS, I handle the entire lifecycle: framing, architecture, development, testing, deployment.I integrate AIinto your projects and business workflows (OpenAI, Claude, RAG, automations) to add value to your solution.
Founder of 3 SaaS | +10 client projects delivered, including platforms with +€1M in revenue
I have contributed to high-traffic products that generate revenue: a top 15 global online casino, an e-learning platform generating +€1M in revenue after going live, B2B marketplaces... In concrete terms, I know how to build apps that handle load and generate revenue.
What can I collaborate with you on
- Your SaaS MVP, from a blank page to deployment (ideation, design, dev, go-live)
- A critical feature on an existing SaaS (Stripe payments, dashboards, third-party APIs)
- AI automation and n8n workflows to free up time on your processes
- A product/tech audit before scaling or raising funds
I deliver working apps.If the mission doesn't serve a clear objective, I'll tell you before starting and help you frame your project.
Main Stack
Front:React, Next.js, TypeScript |Back:Node.js, Nest.js |DB:MongoDB, PostgreSQL |Infra:Docker, CI/CD, Hetzner / AWS |AI:API integrations, AI agents, n8n.
Shall we talk about it?
Send me a DM. Tell me in 3 lines what you want to build, and I'll let you know within 24 hours if I'm the right fit and what we can do together.
French
Native or bilingual
English
Native or bilingual
Can work on-site
Nancy (up to 50km), Paris (up to 50km)
Experience
- RicbellerCo-founder, PresidentDIGITAL AND ITMarch 2025 - February 2026 (11 months)Paris, France→ Goal: Deliver ambitious projects quickly through the complementarity I have with my associate.→ Achievements:• Project 1: Online learning platform with secure streaming system and community ecosystem → +110% revenue in 4 months, +3k new users, +25% sale price.• Project 2: B2B matching platform with AI generating specifications, estimates, methodology, and quotes → +3k service providers, 3 interfaces (provider, client, admin), advanced advertising spotlight system.• Project 3: Vehicle registration card marketplace → 3 interfaces (client, partner, admin), business development of the project and partnership management.• Project 4: Meta leads management SaaS integrated with Discord → automated tracking, qualified leads & projects summary. All centralized on each client's Discord server.• Project 5: HR SaaS for monitoring employee emotions and productivity → individual analysis AI agent, identification and anticipation of profiles at risk of burnout or productivity loss.• Company Management: management, client relations, prospecting, project steering, recruitment, landing page creation.→ Technical Stack: Hetzner, Node.js, React.js, Next.js, TypeScript, MongoDB, Docker, Stripe API, OpenAI API, N8N, Discord Developer, Meta Trigger.
- Space Gaming BVBack-end DeveloperTECHMay 2024 - April 2025 (11 months)Paris, France→ Mission Objective: Develop and optimize a top 15 global Web3 casino, ensuring the fluidity of transactions (fiat & crypto), the security of sensitive features, and scalability for high user traffic.→ Achievements:• Back-end integration of sports betting and management of massive database entries.• Implementation of seasonal events, quests, welcome offers, affiliate programs, and airdrops.• Creation of a complete back office (back-end + front-end): management of KYC, user accounts, bank & cryptocurrency transactions, bet tracking, and statistics.• Implementation of unit tests (Vitest), refactoring of the codebase, and establishment of best practices.• Internal training on MongoDB.• Continuous server optimizations to maintain a fluid user experience despite blockchain congestion and transaction volume.• Constant product challenge: end-to-end validation of each feature to ensure maximum security and prevent any exploitable vulnerability.→ Technical Stack: AWS, Node.js, C# .NET Core, React.js, TypeScript, MongoDB, Mongo Atlas, Mixpanel.
- Les-Aidants-FranceProduct Owner & Front-end Team LeadHEALTH AND WELLNESSSeptember 2022 - April 2025 (2 years and 7 months)Paris, France→ Project Objective: Create a platform that meets the needs of caregivers, combining social support, technical innovation, and accessibility.→ Achievements:• Product design and definition of user journeys.• Implementation of a quality control and accessibility system.• Team Management: recruitment, training, facilitating Scrum sprints adapted to each developer's technical skills.• UI/UX design for the entire platform.• Management of external relations: Departmental Council 54's autonomy service, associations (France Alzheimer), EHPAD directors, healthcare professionals, and caregivers.→ Awards:- 1st place at Epitech Nancy Warm-Ups → qualification for Epitech Experience Paris.- Winner of the "Jury's Favorite" at Epitech Experience Paris.- Selected for a Google mentorship program.→ Technical Stack: Angular, team management, Agile Scrum methodology, UI/UX design, project management, institutional & associative relations.
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Education
- Expert in Information TechnologyEpitech2025Ecole d'informatique pédagogie active Dans le cadre de mes études, j'ai développé plus de 80 projets en C/C++/Python/NodeJS/ReactJS/ReactNative/SQL/Ruby/Perl/Docker/Ansible
- DUT Electrical Engineering and Industrial ComputingIUT Nancy Brabois2020Développement C# et Arduino sur robot industrielle