Frédéric Jammes
Fondateur, Techlead & Craftsman
Salary / Daily rate
Rouen, France
Freelance
Can come onsite
Skills
Languages
About me
Intro
Frontend expert & full-stack craftsman with 15+ years building scalable web applications using React, Angular, and modern architectures. Founded Crafted Logic, specializing in TDD, hexagonal architecture, and delivering maintainable solutions for clients like Olympe.legal. Expert in React/TypeScript/Node.js with proven team leadership and AWS expertise.
Work experience
React / Angular / Node.js / NestJS Developer
Collectif Ytreza.devFreelance
Mar 2025 - Present
1 year 8 months
Remote
A collective of senior freelance developers united by shared values around Software Craftsmanship. We build projects, regardless of the tech stack, by bringing in the right experts at the right time.
React / Node.js / NestJS Developer
Olympe.legalFreelance
Jan 2025 - Jun 2025
6 months
Remote
Creation of a web application and an API (React / NestJS) Application of Software Craftsmanship principles (Hexagonal Architecture, Pair/Mob Programming, TDD, Clean Code) 🧪 Result: a solid, well-tested product, ready to evolve with confidence, seamlessly handed over to the client's tech team!
React / Node.js Developer
TakeTurns
Sep 2022 - Apr 2025
2 years 8 months
Remote
Development of a complete SaaS product (React / GraphQL / Node.js / Java / AWS) Implementation of a well-crafted architecture aligned with Software Craftsmanship principles End-to-end testing with Cypress / Cucumber / Gherkin
SQLI
Mar 2019 - Aug 2022
3 years 6 months
Paris, France
Angular / Java Developer
Jan 2022 - Aug 2022
8 months
Paris, France
⚡️Development of a real-time web application for the energy sector
Angular & TypeScript Trainer
Mar 2020 - Aug 2022
2 years 6 months
Rouen, France
🎓 Facilitation of internal and public training sessions
Software Craftsmanship Coach
Apr 2022 - May 2022
2 months
🔍 Audit of Software Craftsmanship practices in the luxury industry
React Tech Lead
Sep 2021 - Dec 2021
4 months
🚘 Incremental migration of an automotive e-commerce website from PHP (Twig) to ReactJS
Angular / Java Tech Lead
Apr 2021 - Aug 2021
5 months
🔎 Integration of Sinequa and customization of its interface
Angular Tech Lead
Jul 2020 - Mar 2021
9 months
☂️ Development of the web & mobile client portal for an insurance company
Angular / .Net Tech Lead
Mar 2020 - Jun 2020
4 months
Rouen, France
📚 Creation of a web application for project tracking for a thermal and acoustic engineering firm
Vue.js / Java Developer
Sep 2019 - Feb 2020
6 months
📜 Development of a certification and contract management tool for a global certification organization
Angular Developer
Jun 2019 - Sep 2019
4 months
🎢 Creation of a web application for event management at an amusement park
.Net Developer
Mar 2019 - Jun 2019
4 months
Rouen, France
📄 Creation of a CV management tool
Sopra Steria
Oct 2010 - Feb 2019
8 years 5 months
Rouen, France
Angular Tech Lead
Jan 2019 - Feb 2019
2 months
Rouen, France
🤸♂️ Web application for competition management for a national sports association (Angular / Java Spring)
Angular Tech Lead
Sep 2016 - Dec 2018
2 years 4 months
Rouen, France
🏢 Creation of an accounting management application for a software publisher 👥 Leader of a nearshore team of 5 to 12 people
Java Developer
Feb 2016 - Aug 2016
7 months
Rouen, France
🚘 Application maintenance (TMA) of a critical real-time application for an automotive manufacturer
Angular JS / PHP / Drupal Developer
Sep 2014 - Jan 2016
1 year 5 months
Rouen, France
🛣️ Creation of a web & mobile application for a highway operator
Java Developer
Feb 2014 - Aug 2014
7 months
Rouen, France
👴🏻 Creation of the web application for managing the "Personal Prevention of Hardship Account" system for CNAV
Java / Bash Developer
Dec 2011 - Jan 2014
2 years 2 months
Évreux, France
🏥 Development of web applications and multiple bash scripts for CNAMTS
PHP / Typo 3 Developer
Oct 2010 - Nov 2011
1 year 2 months
Paris, France
⛪️ Management of a portfolio of websites for the General Council of Hauts-de-France
Education
Esigelec
Diplome d'ingénieur
2006 - 2009
3 years 1 month
IUT Le Havre
DUT
2004 - 2006
2 years 1 month
Licenses & certifications
Microsoft Certified: Azure Fundamentals
Issued: Oct 2020
Exam 480: Programming in HTML5 with JavaScript and CSS3
Issued: Dec 2019