C++ Development and Validation Engineer

GROUPE LR TECHNOLOGIES

. Analyze software specifications and contribute to design activities .

Posted 9/16/2026full-timeLes Ulis • FranceMid-LevelSenior💰 €40,000 - €55,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Proficient in C++ software development with a strong focus on quality processes and railway standards. Experienced in validation, technical documentation, and collaboration within safety-critical environments.

Highest-signal resume keywords

C++ Software DevelopmentUnit And Integration TestingConfiguration ManagementRegulated Environment ExperienceTechnical Documentation

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

C++Software Development Best PracticesUnit TestingIntegration TestingDefect FixingCode ReviewPython ScriptingSoftware ValidationTraceabilityQuality Assurance

Soft Skills

Detail-OrientedMotivatedCollaborativeStrong Focus On Code Quality

Tools & Technologies

GitJira

Industry Keywords

Railway StandardsSafety-Critical SoftwareEmbedded SystemsRegulated EnvironmentAerospaceDefenseAutomotive

Tech Stack

Tools & technologies

PythonC++

About the role

Key responsibilities & impact

Analyze software specifications and contribute to design activities
Develop features in C++
Write and execute unit and integration tests
Validate software and analyze test results
Fix defects and enhance existing products
Write the associated technical documentation
Follow quality processes and railway standards (EN 50128)
Participate in code reviews and collaborate with systems teams
Work as part of the teams of a leading railway signaling client on safety-critical embedded and ground-based C++ software

Requirements

What you’ll need

Graduate of an engineering school or holder of a Master's degree (Bac+5) in computer science or embedded systems
At least 3 years of experience in C++ software development and/or validation
Strong command of C++ and software development best practices
Comfortable with configuration management and issue-tracking tools such as Git, Jira, or equivalent
Python scripting skills would be an advantage
Experience in a regulated environment—ideally railway, but also aerospace, defense, or automotive—would be highly valued
Detail-oriented, with a strong focus on code quality and traceability
Good technical English is required
Motivated to contribute to the growth of a human-sized company

Benefits

Comp & perks

Great Place to Work certification
EcoVadis certification
Hybrid working arrangement