Senior Software Developer C++

Sopra Steria

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Montréal, QC, ca on site Until 9/26/2026 10+ years exp First posted July 28, 2026 Last posted July 28, 2026
Job description

CS Group Canada, a subsidiary of CS Group (part of the Sopra Steria Group), is a leader in the development and certification of safety-critical systems in the aerospace, electric, and autonomous driving industries.

Joining CS Group Canada means taking part in complex, high-tech projects for some of the most prestigious system manufacturers in North America, while benefiting from competitive salaries, comprehensive benefits, and flexible work arrangements.

Today, CS Canada offers the opportunity to join a dynamic group operating in a constantly growing sector, working on complex high-tech systems. All this while enjoying comprehensive benefits, a workplace focused on mutual support and collective success, and flexible working hours.

CS Group Canada offers an innovative proprietary solution, LAD (Counter-Drone System), specifically designed to meet the unique needs of its clients. This advanced technology enables the detection, identification, and tracking of potentially hostile drones using an integrated system of high-precision sensors and cameras. It also provides tailored neutralization capabilities to ensure the security of critical infrastructures and sensitive events.

Requirements

We are looking for a Senior Software Developer:

  • Design, develop, and optimize complex software applications using C++.
  • Apply software development good practices and standards.
  • Participate in defining and designing efficient architectures for n-tier critical and strategic software.
  • Develop efficient user interfaces and data processing algorithms.
  • Apply and promote robust testing methodologies (TDD, BDD, QtTest).
  • Participate in code reviews to improve quality and Definition of Done compliance.
  • Analyze and prepare documentation.
  • Collaborate with multidisciplinary teams and manage priorities to meet objectives.
  • support V&V and hardware teams with software tooling.
  • Bachelor’s or Master’s degree in Computer Engineering or Computer Science;
  • Minimum 7 years of experience in object-oriented software development;
  • Minimum 10 years of experience in a C++ Software development position;
  • Proficiency of Google Test and QTest is required;
  • Significant experience with Linux environments, (Ubuntu or Fedora are an asset.)
  • Familiar with source versioning (GIT, Gerrit)
  • Rigorous documentation writing;
  • Fluent in French, good knowledge of English as an asset;
  • Experience with agile methodologies (Scrum) is an asset.
  • Quick learner with strong problem-solving skills

Please note that only selected candidates and Permanent Residents/Canadian Citizens will be contacted.

Job Types: Full-time, Permanent

CS Group Canada values ​​diversity in the workplace and encourages women, visible minorities, ethnic minorities, aboriginal people, and people with disabilities to apply.

Benefits:

  • Hybrid Work 
  • Industry leading medical, dental, and vision Insurance
  • Access to a telemedicine service
  • RRSP program
  • Personal and sick days
  • Recreation room with pool table and foosball table

All your information will be kept confidential according to EEO guidelines.

Compensation (from employer):
From 85000 CAD

About this role

Summary

Design, develop, and optimize complex C++ software for safety-critical aerospace systems.

Job title

Senior Software Developer C++

Experience level

10+ years

Minimum experience

10+ years exp

Industry

software

Location requirements

Montréal, QC, hybrid work allowed

Salary

C$85k+

Management role

No

Skills & keywords

Required skills

C++Google TestQTestLinuxversion control

Preferred skills

agile methodologiesFrench language

Specializations

C++Linuxsoftware developmentobject-oriented
Locations

Structured locations inferred from the posting.

Montreal, QC, Canada

Hybrid City