Cyber Security Software Developer Jobs in Calgary, AB

Build bold. Deliver impact. Win together.
At General Dynamics Mission Systems–Canada, we’re not just engineering technology — we’re shaping the future of defence and security. Our teams design and deliver advanced, mission-critical solutions that enhance national security, strengthen communities, and protect the people we serve.
If you’re looking for meaningful work that contributes to a safer, more secure world, you’ll find purpose here. Every day, your skills will directly impact programs that matter.

We’re looking for an Intermediate Systems Engineering Analyst to work with our Applications team. In this role you will help shape the evolution of the Land Command, Control, Communications, Computers, Cyber, Intelligence, Surveillance, and Reconnaissance – Targeting (LC5ISR-T) system for Canada’s Army operations.

In this role, you’ll contribute to key architectural and design decisions by collaborating closely with DND and program teams. You will identify gaps and areas of potential improvement within existing capabilities to support the end user, including threat modeling and vulnerability assessments to refine system defenses and enhance resilience.  Your work will touch upon applications, operating systems, networking, and cybersecurity.  You will perform both cyber and non-cyber related systems engineering work in a military context which will then be fed to development and test teams.

What You’ll Do

• Provide system and product level design and support.
• Document system and subsystem requirements specifications, interface control documents, design documents and use cases.
• Manage System Problem Reports (SPRs) and Observations by providing proper upfront analysis and input to support bug fixes as well as seeing the proper close out of each SPR.
• Provide guidance and support to the development teams for the implementation and revision of capabilities within LCSS.
• Support integration and test activities, including reviewing test cases, analyzing results, and helping resolve discrepancies.
• Participate in meetings and reviews with both internal teams and external stakeholders, presenting insights and recommendations.
• Take ownership of deliverables and contribute to meeting key program milestones and commitments.
• Evaluate, select, and establish the system security architecture and design to various security controls.
• Conduct vulnerability assessments to refine system defenses and enhance resilience.
• Ensure cybersecurity frameworks adhere to military and industry standards such as NIST RMF, ITSG-33, DISA STIGs, and FIPS.
• Support internal and external audits by authoring and maintaining reproducible security artifacts and SA&A (Security Assessment and Accreditation) documentation (e.g., System Security Plans, Risk Assessments, Security Artifacts in System Design Document, Security Test Reports), including obtaining concurrence from SA&A authorities on the identified information protection needs.

 What You Need to Have to Succeed

• Bachelor’s degree in Engineering, Computer Science, or applicable scientific discipline.
• Minimum 2+ years of Systems Engineering or Systems Architecture experience.
• Minimum 5+ years of cybersecurity-related experience.
• Experience with Windows/Linux security policies, configurations, vulnerability scanning, and vulnerability assessment tools.
• Working knowledge of systems engineering tools including DOORS (preferably DOORS Next Generation), Rational Team Concert (RTC), and UML/SysML.
• Knowledge of system development processes and lifecycles.
• Knowledge of requirements definition and management.
• Experience supporting vulnerability management workflows, including CVE/CWE tracking and remediation.
• Strong problem-solving and root cause analysis skills.
• Effective communication skills with a collaborative mindset and willingness to learn and take ownership.
• Strong time management skills with the ability to work independently and within a team environment.

 What Makes You Stand Out

• Cybersecurity education/background with certifications preferred (e.g., ISC2, CEH, CISSP, etc.).
• Experience supporting the engineering development of secure systems, ideally within military or defence environments.
• Good understanding of software (SW) and firmware (FW) development, including applications, operating systems, computer networking, and cybersecurity.
• Reasonable understanding of software and firmware development, operating systems, data terminals, and basic networking.

How We Work

• Work Schedule: 37.5 hours per week 
• Work Arrangement:  Hybrid - 2 days in our Calgary office

It is a requirement that General Dynamics Mission Systems-Canada be registered with the Canadian Controlled Goods program and that all of its workforce be security assessed. Successful applicants must meet all applicable security requirements, including but not limited to the ability to obtain and maintain a Canadian government security clearance. Applicants may be required to meet additional security requirements in order to gain access to technical data, classified areas or information that is subject to international regulations. You must be eligible to work in Canada.

The hiring range for this position is $85,000 t0 $105,000 Annually    

Our goal is to provide a fair and competitive offer based on an assessment of internal equity and your qualifications, including:

• Relevant experience
• Technical and non-technical skills
• Education and certifications

Benefits
As a full-time employee at General Dynamics Mission Systems–Canada, you’ll enjoy a competitive total rewards package that supports your professional and personal well-being:

• Comprehensive medical, dental, and vision coverage for you and eligible dependents from day one (no cost), including flexible benefits options (HCSA) emergency travel insurance, and 24/7 virtual care services.
• Employee & Family Assistance Program (EFAP), onsite fitness facilities, and employee resource groups.
• Defined Contribution Pension Plan with employer contributions after 3 months, RRSP access from day one, and financial planning support.
• Flexible time off including vacation, holidays, parental leaves with top-up options, sick leave, and disability programs.
• Career development through learning platforms, educational assistance, mentoring, and reimbursement of professional memberships.
• Additional perks such as employee discounts, free onsite parking, social clubs, and an annual scholarship program for employees’ children.

Why join us?

• Purposeful Innovation: You’ll work on innovations that genuinely make a difference. You’ll apply advanced thinking, design expertise, and practical problem-solving to help equip military and allied forces with leading-edge systems. You’ll be surrounded by some of the brightest minds in the defence sector, contributing to next-generation technologies in an environment that celebrates creativity, new ideas, and modern solutions.
• Connection: We believe people do their best work when they feel they belong, and their ideas can flourish. Different perspectives, experiences, and ways of thinking help us innovate and grow. Strong relationships with our teammates help us unite, overcome challenges, and deliver the world-class quality we’re known for. Here, we are committed to inclusivity and ensures every individual feels valued, respected, and empowered.
• Challenging and Rewarding Career Pathways: Your career path matters to us. From mentorship and regular check-ins with your leader to educational support, professional certifications, and continuous training, you’ll have the resources you need to thrive. We encourage internal mobility so you can explore different business areas, broaden your skillset, and expand your network. You’ll be working on high-profile, impactful projects that challenge your skills, expand your expertise, and allow you to both learn from mentors and guide others along the way.

Accommodation 
If you require accommodation during any stage of the application process, please contact Human Resources via recruitment@gd-ms.ca.

Closing Date
We reserve the right to close this vacancy early if we receive sufficient applications for the role. Therefore, if you are interested, please submit your application as early as possible.