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Stéphane ColsonSC

Stéphane Colson

QA | Automation | Playwright | Cypress | AI

€700/day
58 projects
Lyon, FR
15+ years

Average response time: 2 hours

Freelancer profile translated to English.
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About Stéphane

Are you looking to implement an effective **testing strategy**?
Are you looking for anautomation engineerto join your QA testing team?
Are you looking to improve thetest coverageof your web application to go into production quickly and with peace of mind?

I can help you.

I have over 20 years of experience and specialize inweb interface test automationwith **Cypress**, **Playwright**, etc., and for API test automation with **Postman**, **Bruno**, etc.

I have worked with startups and large corporations, internally or on short or long freelance assignments, for example with:
  • **April**: to automate insurance offer brokerage processes
*Pass Culture(French State): to automate tests for the professional application
  • **Soufflet (Invivo Group)**: for the mobile decision-support application for cereal farmers + for the launch of an e-commerce site
  • **Malt**: to test the messaging application and automate interface tests
  • **Michelin Mobility Intelligence**: for a mobile driving monitoring application, testing Android and iOS applications
  • ...

I can help you to:
  • Think about and implement a testing strategy
  • Develop automated tests (preference for end-to-end tests with Cypress or Playwright)
  • Coach a team of testers

To discuss your needs, contact me on the platform
  • English

    Fluent

  • French

    Native or bilingual

Remote only
Primarily works remotely

Experience

  • Naboo
    Software QA Dev Tester with AI
    TRAVEL AND TOURISM
    December 2025 - Today (6 months)
    Paris, France
    QA & Automation Expert specializing in Playwright/TypeScript for enterprise-grade testing solutions.
    At Naboo.app, I designed and implemented an AI-enhanced testing framework leveraging Claude Code to accelerate test development while maintaining rigorous quality standards.
    My work secured critical features for Naboo's AI-powered event procurement platform, ensuring reliability across complex integrations and user workflows. By combining traditional automation with intelligent code generation, I reduced test creation time while improving coverage and catching regressions earlier in the development cycle.
    Playwright QA testing Typescript artificial intelligence Claude Code
  • April
    QA API automation with Playwright
    BANKING AND INSURANCE
    September 2025 - December 2025 (3 months)
    Lyon, France
    Architected a comprehensive testing strategy for April's API Store, the central hub distributing insurance offers to third-party catalogs.
    Designed and implemented a hybrid automation framework using Playwright and TypeScript to rigorously validate both RESTful API endpoints and critical UI workflows.
    This approach ensured data integrity across complex integrations, accelerated release cycles, and guaranteed seamless availability of April's products in external ecosystems, significantly reducing integration risks and enhancing overall platform stability.
    API Testing QA testing QA Automation strategy regression testing Playwright
  • CareCare SAS
    Malt logoOn Malt
    Support on an automation project with Playwright
    MEDICAL
    October 2025 - November 2025 (1 month)
    Small support mission for end-to-end test automation for the Care-Care application with Playwright.
    Playwright

Reviews

5.0

Out of 25 ratings

D

Daniel

GIE April Courtage

Reviewed on 1/14/2025

Stéphane completed a year and a half mission within our team. Starting from a blank slate, he was responsible for setting up a test automation framework with Cypress. He quickly adapted to our agile and changing work environment. His rapid integration into our teams was crucial to the success of this mission. Today, automated tests have become an essential component of our project process, used daily by our QA, Dev, and DevOps teams. A big thank you Stéphane! 😊
N

Nicolas

Pass Culture - Pôle Tech

Reviewed on 1/2/2025

We appreciated the collaboration with Stéphane. He is a conscientious person. He helped us expand the scope of end-to-end test coverage. He implemented stable E2E tests in "CI" and gradually eliminated flaky tests. I thank Stéphane for the quality of the work provided, mostly remotely.

Recommendations

Bilel LaifiBL
Ismail HaiberIH
FU
+4
Bilel Laifi and 6 other people have recommended Stéphane

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Education

  • Software Engineer
    Mines Saint-Étienne School
    2001

Certifications

Skill set

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