Cybersecurity Specialist– Avionics Systems (DO-326A / ED-202A)

Job Description

Cybersecurity Specialist– Avionics Systems (DO-326A / ED-202A)

• Full-time

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.

As a Cybersecurity Specialist– Avionics Systems, you will play a key role in ensuring that cybersecurity is integrated throughout the avionics system and software lifecycle, in compliance with applicable airworthiness security standards (DO-326A, ED-202A, DO-355, DO-356A).

You will collaborate closely with system, software, and safety teams to:

• Define and maintain the airworthiness security process across projects;


• Perform Aircraft/System Security Scope Definition (ASSD/SSSD) and Security Risk Analysis (ASRA) for airborne and ground systems;


• Derive and validate security requirements aligned with certification expectations;


• Develop and maintain the cybersecurity case to demonstrate compliance to authorities (EASA/FAA/TCCA);


• Contribute to security verification and validation activities, including penetration testing, vulnerability analysis, and security audits;


• Act as a technical advisor to project teams, fostering a “security‑by‑design” culture rather than a compliance‑only mindset.

Your mission is to empower development teams to design and deliver resilient, certifiable, and secure avionics software and systems.

Bachelor’s or Master’s degree in Computer Science, Software, Electrical or Aerospace Engineering, or a related field;

Strong expertise in cybersecurity for embedded or safety‑critical systems, ideally in the aerospace or defense domain;

Proven experience with airworthiness security standards (DO-326A / ED-202A / DO-355 / DO-356A) or equivalent frameworks (ISO/SAE 21434, IEC 62443);

Thorough understanding of DO-178C, ARP4754A, and DO-254 (or relevant equivalent) development processes is a strong asset;

Demonstrated proficiency in threat modeling, secure coding practices, and risk analysis (SRA);

Relevant exposure and interactions with certification authorities (or delegates) and Stage Of Involvement meetings;

Relevant cybersecurity certifications (CISSP, GICSP, or equivalent) are a plus;

Ability to collaborate across multidisciplinary teams (architecture, software, safety, verification);

Excellent communication and leadership skills, with the ability to translate complex security concepts into actionable engineering practices.

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.

• 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.