Sylvain Coulomb
Senior fullstack engineer
Salaire / Taux journalier
Angers, France
Mobilité : Paris, Nantes, ...
Freelance, ouvert au CDI
À distance uniquement
Expertises
Langues
À propos
Introduction
I work with SaaS and fintech founders as their senior technical lead, on a retainer basis, with a small number of startups at a time. If you're a non-technical founder who needs someone to own the technical side of your product, architecture, shipping, decisions, without hiring full-time, you can reach out. 10 years of experience across full-stack web development, AI integration, and complex financial products. I've worked with fast-moving teams at Betclic, Zoop, Better Trade Off, and others.
Expérience de travail
Senior fullstack engineer
Freelance
janv. 2018 - Présent
8 ans 10 mois
À distance
– FANtium (8 months) – Cut technical debt and modernised the Web3 stack: migrated from web3.js/ethers.js to Viem + Wagmi and shipped audited Solidity contracts. (Stack: React, Next.js, GraphQL, Vitest, Viem, Wagmi, Solidity, Foundry, Docker) – Mobula / Riverflow (4 months) – Re-architected a monolithic Express API into NestJS micro-services. Added Redis + RabbitMQ for real-time event handling. (Stack: React, Next.js, NestJS, Prisma, Redis, RabbitMQ, Web3.js, Docker) – BlackPool Finance (1 yr 7 mo in core team) – Led on-chain data aggregation and developed ERC-721 contracts. Ongoing app maintenance and product consulting. (Stack: Next.js, Solidity, Foundry) – Majora Finance (ex-Strateg Protocol) (3 months) – Built a NestJS blockchain listener that parses events. (Stack: NestJS) – BTO (BetterTradeOff) (4 yrs) – Delivered end-to-end financial-planning features (Stack: C#/.NET, AngularJS)
Fullstack engineer
Betclic Everest Group
nov. 2015 - mars 2017
1 an 5 mois
Paris, France
– Developed casino-platform features with ASP.NET MVC and front-end layers in KnockoutJS and AngularJS 1/2 (TypeScript). – Maintained and extended back-end logic exposed through WCF services and REST APIs. – Wrote and ran unit tests, integration tests, and SpecFlow acceptance tests to keep releases stable.
Fullstack .net engineer
Itelios
nov. 2013 - oct. 2015
2 ans
Paris, France
– Worked across several projects built with ASP.NET MVC 4/5, handling both front-end views and server-side logic.
Software Developer
Tribway & Tribway Consulting
janv. 2014 - déc. 2014
1 an
Paris, France
– Contributed to the e-commerce platform Tribway, developing new features and maintaining existing code in the ASP.NET stack.
Web Developer
Quizz Tournament
janv. 2013 - déc. 2013
1 an
Paris, France
– Developed front-end and back-end components for the company's browser-based quiz games, using PHP and JavaScript.
Formation
SUPINFO - The International Institute of Information Technology
Master's degree, Informatics
2012 - 2015
3 ans 1 mois
Université de Nice-Sophia Antipolis
Licence Sciences, General
2009 - 2012
3 ans 1 mois