Jérôme Desmares

Freelance Tech Lead · MVP Expert

I turn your ideas into profitable products. MVP in 4-8 weeks, scalable architecture, production-ready code. From idea to launch, I've got you covered.

10+ years building tech products

From e-commerce entrepreneur to Engineering Manager, I've built products generating millions in revenue for my clients.

2015-2018

E-commerce Entrepreneur

Built and scaled an online store to €200k annual revenue. Customer acquisition, conversion, logistics. I learned business by doing.

2018-2020

Senior Fullstack Developer

Built critical APIs in startups: Stripe payments, OAuth authentication, SaaS billing. Stack: Node.js, TypeScript, PostgreSQL.

2020-2022

Tech Lead

Technical leadership of 3-6 developer teams. Microservices architecture, CI/CD, code reviews. Delivering complex products on time.

2022-Now

Engineering Manager / Head of Engineering

Managing teams up to 11 developers. Tech recruiting, product strategy, scaling organizations. Tech budgets of several hundred k€.

Education

42

School 42 Paris

Digital Technologies Architect (Master's level)

Master's Degree

International Business Europe-Asia

Freelance Tech Lead Services

High-level technical expertise to accelerate your product growth.

MVP / POC Development

Validate your idea in 4-8 weeks with a functional product. I code your MVP from scratch with architecture built to scale. Test the market without technical risk.

4-8 weeks deliveryProduction-ready codeScalable architecture

Architecture & Development

Modern architecture design: RESTful/GraphQL APIs, microservices, event-driven. Performance optimization and technical debt reduction.

Node.js / TypeScriptPostgreSQL / MongoDBAWS / GCP / Vercel

Fractional CTO

An experienced CTO without full-time costs. Technical direction, recruiting, code reviews, team upskilling. Available 1-4 days per week.

Technical directionDev recruitingTeam mentoring

AI Consulting & Automation

AI integration in your products: chatbots, RAG, workflow automation. I help you identify relevant use cases and implement them pragmatically.

LLMs & ChatGPTRAG & embeddingsAutomation

Technologies I master

Node.jsTypeScriptNestJSReactPostgreSQLDocker

Let's talk about your project

MVP, technical overhaul, dev recruiting? I respond within 24h with a free initial analysis of your needs.

Nice, France · 100% Remote