Software Engineer jobs in France

Explore 38 matching jobs.

Mozilla

Contract Software Engineer – DOM Core, Firefox/Gecko

Mozilla

Posted: 10/20/2026
JavaScriptC++
MLabs

Lead Mobile Engineer

MLabs

Posted: 10/20/2026
AndroidiOSKotlinReactReact NativeSwift
DSI

Mainframe Developer – Public Sector

DSI

Posted: 10/19/2026
Java
Nestle

Plant Biology Engineering Internship – Characterization of Microsporogenic Stages in Coffea

Nestle

Posted: 10/16/2026
Consort Group

COBOL Developer

Consort Group

Posted: 10/15/2026
Niji

AI Delivery and Software Development Project Director

Niji

Posted: 10/14/2026
JavaScriptMicroservicesNode.jsReactSDLCTypeScript
WSP en France

Director of Engineering Development – Water, Waste & Energy Division

WSP en France

Posted: 10/14/2026
OPEN

COBOL Developer

OPEN

Posted: 10/9/2026
ICON plc

Statistical Programmer II

ICON plc

Posted: 10/9/2026
Altereo

Project Director – Urban Water Engineering

Altereo

Posted: 10/9/2026
Dougs Compta

Account Developer

Dougs Compta

Posted: 10/9/2026
Gramian Consulting

Open Source Contributor, Developer

Gramian Consulting

Posted: 10/9/2026
Gramian Consulting

Open Source Contributor, Developer

Gramian Consulting

Posted: 10/9/2026
REDEN

Director of Construction and Engineering – Europe

REDEN

Posted: 10/8/2026
TypeScript
Westinghouse Electric Company

Project Engineering Intern

Westinghouse Electric Company

Posted: 10/8/2026
Sogelink

Software Engineer

Sogelink

Posted: 10/8/2026
GroovyJavaSQL
Umicore

Process Engineering Professional

Umicore

Posted: 10/6/2026
Capgemini

Lead Mobile Developer

Capgemini

Posted: 10/2/2026
AndroidFlutteriOSJavaKotlinObjective-CSwift
Atos

Go/C# Developer

Atos

Posted: 10/2/2026
AzureDockerERPIoTKafkaKubernetesLinuxMicroservicesPostgres+4 more
Henner Group

Software Designer and Developer, COBOL/SQL

Henner Group

Posted: 9/30/2026
LinuxOracleSQLWPF
OPEN

Senior Developer/Designer, Mainframe, Banking, Insurance

OPEN

Posted: 9/29/2026
Mozilla

Contract Software Engineer – DOM Core, Firefox/Gecko

Mozilla
Posted 10/20/2026contractRemote • France, CanadaMid-LevelSeniorWebsite
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Core Competencies

Role fit
Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in browser-engine development, particularly with Firefox/Gecko, focusing on improving code correctness and test coverage through automated testing and debugging. Proficient in Javascript and C++, with a strong understanding of web standards and collaborative practices in open-source environments.

Highest-signal resume keywords
Browser-Engine DevelopmentAutomated Testing in JavascriptC++ Software DevelopmentDebugging Large CodebasesContributions to Gecko

Tech Stack

Tools & technologies
JavaScriptC++

About the role

Key responsibilities & impact
  • Help the Firefox DOM Core team improve the health of the Session History area
  • Write Web-Platform tests to improve coverage and Gecko mochitests as needed
  • Fix problems and pass tests to improve Gecko correctness
  • Work through code review with relevant Gecko module owners and iterate to landing
  • Improve Session History test coverage and code correctness in Gecko, measured by passed test cases

Requirements

What you’ll need
  • Substantial experience in a browser-engine codebase or in automating for a browser-engine, ideally Firefox/Gecko
  • Solid Javascript and applying that language skill to write automated tests
  • Proficiency in and experience developing software in C++
  • Strong debugging skills in a mature larget codebase
  • Comfort working in the open: public bugs, code review, and upstream landing
  • Prior contributions to Gecko or another major browser engine (preferred)
  • Familiarity with web standards and Web Platform Tests (preferred)

ATS Keywords

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Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills
JavascriptC++Automated TestingDebuggingWeb-Platform TestsGecko MochitestsCode ReviewSession History ImprovementTest CoverageCode Correctness
Soft Skills
CollaborationComfort Working in the Open
Industry Keywords
Browser EngineFirefoxGeckoWeb StandardsPublic BugsUpstream Landing