Full-stack developers work on all aspects of a web application: user interface (front-end), server, and data (back-end). Highly sought after by startups and scale-ups, they are versatile professionals capable of delivering end-to-end functionality.
🎯 Tasks
- Develop comprehensive features, from the API to the user interface.
- Design the data model and API contracts.
- Ensuring quality: testing, code reviews, monitoring.
- Participate in architectural decisions and the management of technical debt.
- Engage with the product and design to balance value and effort.
🛠️ Skills & Tech Stack 2026
- The industry standard: End-to-end TypeScript — React/Next.js on the front end, Node.js (NestJS, tRPC) on the back end.
- Common alternatives: Vue/Nuxt, Python/Django, Ruby on Rails, PHP/Laravel.
- Data: PostgreSQL, Prisma/Drizzle, Redis.
- Deployment: Vercel, Docker, CI/CD, serverless.
- Solid foundation in UX, security, and web performance.
💰 2026 Salaries (as reported in France)
- Junior: 40–48 k€
- Confirmed: 48–65 k€
- Senior / Lead: 65–85 k€ and up (up to 100 k€+ at an AI scale-up)
- Freelance: Average daily rate of 450–700 €.
🔍 Not to be confused with
A full-stack developer isn't "two developers for the price of one": they typically have a primary focus (front-end or back-end) and are reasonably proficient in the other area as well.
❓ Frequently Asked Questions
When should you hire a full-stack developer instead of two specialists? In a small team (early stage, product squad), where speed of execution takes precedence over depth of expertise.
What is the most in-demand full-stack technology stack? TypeScript + React/Next.js + Node.js + PostgreSQL accounts for the majority of the searches we handle.
📈 Trends
Lead Developer, Founding Engineer, Software Architect, CTO.
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