You're seeing this page as if you were . The main menu is still yours, though. Exit from immersion
Sylvain TuorST

Sylvain Tuor

Full-Stack & AI Automation Developer

€550/day
Lausanne, CH
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
Back to original language

About Sylvain

Full-stack and mobile developer, I design and deliver web/mobile applications and AI automations — from scoping to production.

In 2025-2026, I designed and deployed about fifteen projects: web applications (Next.js, React, TypeScript, Tailwind), mobile apps (React Native / Expo), back-ends and databases (Supabase / PostgreSQL, Prisma), asynchronous processing queues (BullMQ / Redis), and Python APIs (FastAPI). I integrate AI into real products (Claude / Anthropic SDK, agents, automations) and work in a monorepo architecture.

My background is unconventional, and that's a strength: former investigator in the cybercrime brigade (crypto-asset investigations), I bring investigator rigor, a true security culture, and the ability to simplify complex technical subjects.

Crypto & DeFi, in practice: independent trainer on blockchain and DeFi, and active daily user — staking, liquidity provision (LP), and airdrops on EVM and Solana ecosystems, as well as Bitcoin. I operated mining (Kaspa) and am currently running a validator node (Gnosis Chain).

What I can do for you:
- Design and develop your web or mobile application (quick MVP or complete product)
- Automate your business processes with AI (extraction, qualification, reporting, agents)
- Integrate authentication, payments, databases, mapping, notifications, APIs
- Audit and secure your applications, your wallets, and your digital assets
- Train your teams in blockchain, DeFi, and digital security

Main stack: Next.js, React, React Native / Expo, TypeScript, Tailwind, Supabase / PostgreSQL, Prisma, Python / FastAPI, Redis, Anthropic SDK.
Crypto: EVM, Solana, Bitcoin, DeFi (staking, LP, airdrops), mining, and validator nodes.

Available for freelance missions, in French as well as in English.
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Lausanne (up to 50km)

Experience

  • Indépendant
    Full-Stack & AI Automation Developer
    January 2023 - Today (3 years and 6 months)
    Lausanne, Switzerland
    Full-stack and mobile developer, I design and deliver web/mobile applications and AI automations — from scoping to production.

    In 2025-2026, I designed and deployed about fifteen projects: web applications (Next.js, React, TypeScript, Tailwind), mobile apps (React Native / Expo), back-ends and databases (Supabase / PostgreSQL, Prisma), asynchronous processing queues (BullMQ / Redis), and Python APIs (FastAPI). I integrate AI into real products (Claude / Anthropic SDK, agents, automations) and work in a monorepo architecture.

    My background is unconventional, and that's a strength: former investigator in the cybercrime brigade (crypto-asset investigations), I bring investigator rigor, a true security culture, and the ability to simplify complex technical subjects.

    Crypto & DeFi, in practice: independent trainer on blockchain and DeFi, and active daily user — staking, liquidity provision (LP), and airdrops on EVM and Solana ecosystems, as well as Bitcoin. I operated mining (Kaspa) and am currently running a validator node (Gnosis Chain).

    What I can do for you:
    - Design and develop your web or mobile application (quick MVP or complete product)
    - Automate your business processes with AI (extraction, qualification, reporting, agents)
    - Integrate authentication, payments, databases, mapping, notifications, APIs
    - Audit and secure your applications, your wallets, and your digital assets
    - Train your teams in blockchain, DeFi, and digital security

    Main stack: Next.js, React, React Native / Expo, TypeScript, Tailwind, Supabase / PostgreSQL, Prisma, Python / FastAPI, Redis, Anthropic SDK.
    Crypto: EVM, Solana, Bitcoin, DeFi (staking, LP, airdrops), mining, and validator nodes.

    Available for freelance missions, in French as well as in English.
    Next.js Artificial Intelligence Fullstack
  • Etat de Genève
    Detective - Computer Crime Unit
    October 2020 - December 2022 (2 years and 2 months)
    Genève, Switzerland
    Conducting complex digital investigations and data extractions

    Specialized investigations into crypto-assets

    Writing technical reports and technological watch

    Collaboration with the Public Prosecutor's Office and judicial authorities
  • Police cantonale de Genève
    Police Officer
    March 2019 - September 2020 (1 year and 6 months)
    Genève, Switzerland
    Judicial follow-up unit at the Servette police station

    Emergency interventions, investigation follow-up, and interviews

Recommendations

Be the first to recommend Sylvain

Help this freelancer shine by sharing your experience working together.

These freelancer profiles also match your criteria

AgathaA

Agatha Frydrych

Backend Java Software Engineer

4.7

(3)

2

BaptisteB

Baptiste Duhen

Fullstack developer

4.6

(4)

5

AmedA

Amed Hamou

Senior Lead Developer

4

(2)

7

AudreyA

Audrey Champion

Web developer

4.3

(3)

4

Education

  • Federal Police Officer Diploma, Police
    Savatan Academy
    2014
    Brevet fédéral de Policier, Police
  • Computer Science
    HEIG-VD
    2013
    Informatique

Categories