Freelancer profile translated to English.

Description

👨‍💻 Hello! I'm Thibault Walterspieler, a freelance fullstack engineer based in Lyon with over 5 years of experience in web development. Specializing in technologies such as TypeScript, JavaScript, React, and Next.js, I am passionate about creating scalable and performant web applications.

My key skills include:

**Front-End Development**: Next.js, React, Vue.js, Angular...

**Back-End Development**: NestJS (Typescript), Express, Koa...

**Web3 Development**: Solidity, Wagmi, Alchemy, Infura ...

**Databases**: PostgreSQL, MySQL, MariaDB, MongoDB

**Scripting**: Linux / Windows (Powershell, DOS, shell...)

But also:

Proofs of concept and prototyping
CMS setup (Strapi, Crasft, Prismic)
Writing unit and functional tests
Code audits
Bug fixing
UX/UI consulting

I am capable of working on independent projects or as part of an existing team. My rate is flexible and can be negotiated based on your needs and project complexity. Feel free to contact me to discuss your project and how I can help you achieve it.

My portfolio: walterspieler.dev

Industry field of expertise

Languages

English
Fluent
Italian
Basic
Spanish
Basic
French
Native or bilingual
German
Basic

Workplace preferences

Can work on-site

Lyon (up to 10km), Nancy (up to 10km), Marseille (up to 10km)

Roundtable
Fullstack engineer
PRIVATE EQUITY
February 2025 - Today (1 year and 4 months)
Migration, evolution, and maintenance of a Forest Admin instance.

- Customization of the data model and smart actions
- Automations
- Dashboard creation
Forest Admin PostgreSQL Node.js
Skipcall
Fullstack engineer
SOFTWARE PUBLISHING
February 2025 - September 2025 (7 months)
Support in the complete redesign of their product, from the MVP stage to the deployment of a robust platform. Development of a hexagonal Nest.js API and a Next.js 15 application, implementation of authentication and organization management with WorkOS. Integration of recurring payments and subscriptions with Mollie (seat management, plan changes, promo codes, paywall, automated billing with tax calculation via Quaderno). Consulting role on technical choices and overall architecture.
NestJs Next.js WorkOS Hexagonal Architecture
Greenscope
Fullstack engineer
ENVIRONMENTAL
September 2024 - February 2025 (5 months)
Paris, France
Projects:
Implementation of an ABAC access control system on a Next.js SaaS

**Skills**:
Frontend Development (TurboRepo / Next.js)
Backend Development (Next.js)
SQL Databases (Postgresql / Knex)
Next.js PostgreSQL