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 are seeking Junior Software Engineering Developers to support the design, development, integration, and testing of mission-critical software used in aerospace and airborne defence systems. In this role, you will work within Agile, multidisciplinary teams on applied software engineering problems involving systems integration, automated testing, simulation, and deployment in complex operational environments. You will contribute directly to production systems across the software development lifecycle, working alongside experienced engineers on real-world aerospace capabilities.

This posting supports multiple junior software engineering opportunities beginning May 2026 and is well suited for recent or upcoming Engineering and Applied Science graduates.

In this role you may…

• Design, implement, integrate, and maintain software components supporting aerospace mission systems and simulations.
• Develop and enhance software features aligned with system and operational requirements.
• Build and maintain automated tests (unit, integration, and system-level) to support verification and validation activities.
• Support system integration, verification, and qualification testing in laboratory and controlled test environments.
• Configure and maintain development, integration, and test environments (on-premises, virtualized, or cloud-based).
• Analyze system behaviour, troubleshoot defects, perform root cause analysis, and verify corrective actions.
• Collaborate with engineers across software, systems, hardware, integration, and test disciplines within an Integrated Product Team environment.
• Participate in Agile team ceremonies, including sprint planning, reviews, and retrospectives.
• Document software designs, implementation details, test procedures, and results in accordance with engineering standards.
• Present technical information at design reviews, team meetings, and internal stakeholder briefings.
• Identify opportunities for technical or process improvements and contribute to continuous improvement initiatives.
• Build technical skills, expand domain knowledge, and actively contribute to team learning and knowledge-sharing activities.

Required

• Bachelor’s degree in Software Engineering, Computer Science, Engineering Physics, Aerospace Engineering, or a related discipline.
• Experience with at least one modern programming language (e.g., C++, Java, Python, C#, Kotlin).
• Strong problem-solving and analytical skills.
• Ability to understand and reason about complex software-intensive systems.
• Effective written and verbal communication skills.
• Enthusiastic contributor, willing to learn new skills and take ownership of assigned work.
• Ability to work effectively both independently and within a multidisciplinary team.

Preferred

• Exposure to software engineering fundamentals, including requirements analysis, design, implementation, and testing.
• Experience supporting software integration, verification, and validation activities.
• Familiarity with software configuration management and collaboration tools (e.g., Git, GitLab, Rational Team Concert).
• Experience with automated testing frameworks and practices (unit, integration, or system-level).
• Familiarity with Linux-based development or test environments.
• Understanding of Agile or iterative development methodologies.
• Exposure to aerospace, mission systems, simulation, data processing, or system-of-systems integration.
• Experience supporting lab-based integration or test activities.

How We Work

• Work Schedule: 37.5 hours per week - flexible within core business hours.
• Work Arrangement: A mix of onsite and remote work, as determined by business and role requirements.

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.

What We Offer 
The expected hiring range for this position is $72,000 – 85,000 CAD annual.

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
At General Dynamics Mission Systems – Canada, we prioritize work-life balance. As a fulltime regular/term employee, you can enjoy a supportive, friendly and respectful environment with a competitive total rewards package.

• Comprehensive medical, dental and vision coverage for you and your eligible dependents, from day one of employment at no cost to you. 
  • Flexible benefit options available (including HCSA).
  • Emergency medical travel insurance.
  • 24/7 virtual health care services. 
• Employee & Family Assistance Program (EFAP) – counselling, life coaching, lifestyle change support, and financial planning.
• Onsite fitness facilities & employee resource groups.
• Defined Contribution Pension Plan (DCPP) with employer contributions after 3 months of service.
  • Access to financial advisors for investment advice and comprehensive financial planning. 
  • Voluntary Registered Retirement Savings Plan (RRSP) accessible from day one. 
• Flexible time away to rest and renew with vacation, holidays, vacation purchase plan and parental leaves (with top up options).
  • Sick leave and disability programs. 
• Grow your career your way with free access to a learning platform offering a wide range of courses and resources.
  • Educational Assistance Program to support formal learning. 
  • Self-directed mentoring opportunities. 
  • Reimbursement for professional and industry-related memberships and dues.
• Employee discounts on travel, home and auto insurance, as well as services and activities.
  • Free onsite parking.
  • Annual scholarship program for children of GD employees.
  • Employee social clubs and recreational activities.

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 ensure 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. You’ll work on high-profile, impactful projects that challenge your skills, expand your expertise, and provide opportunities to learn from experienced mentors and grow as an early-career professional. We encourage internal mobility so you can explore different business areas, broaden your skillset, and expand your network.

Accommodation 
If you require accommodation during any stage of the application process, please contact Human Resources via [email protected].

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.