About the Opportunity

The Source Staffing is supporting a leading Canadian
defence technology organization in hiring an Intermediate Software Developer
/ Engineer to join a mission-critical program supporting the Department
of National Defence (DND).

This role is ideal for Secret cleared developers
in the Ottawa region who are looking to apply their skills to operationally
relevant systems used by the Canadian Armed Forces, specifically LC4ISR.
You’ll be contributing directly to tactical command-and-control capabilities in
a highly collaborative, Agile delivery environment.

Why This Role Stands Out

• Work
  on active DND programs with real operational impact
  
• Join
  an internal team deeply embedded in Canada’s defence and security
  ecosystem
  
• Stable,
  long-term program work (not short-term project churn)
  
• Collaborate
  with company colleagues; experienced engineers, CAF stakeholders, and
  system integrators
  

The Role

You will contribute to the design, development, and
integration of tactical software applications, ensuring they meet the
performance, reliability, and security requirements expected in defence
environments.

This is a hands-on development role with exposure to
system-level thinking, integration challenges, and real-world deployment
considerations.

Key Responsibilities

• Design,
  develop, and enhance software systems within an LC4ISR framework
  
• Support
  system integration, verification, and validation activities
  
• Analyze
  and resolve system-level issues, including performance and
  interoperability challenges
  
• Collaborate
  with internal teams and external stakeholders to ensure system reliability
  and maintainability
  
• Conduct
  technical investigations into third-party software and integrations
  
• Review
  and contribute to technical documentation (interfaces, components,
  specifications)
  
• Support
  integration testing and evaluation activities in controlled environments
  
• Contribute
  within a SAFe Agile delivery model
  

Requirements

Required Qualifications

Must-Have

• Active SECRET security clearance (mandatory – must be valid and transferable)
  
• Minimum 5 years of software development experience
  
• Strong
  proficiency in Java
  
• Experience
  working in secure or regulated environments (defence, public
  sector, or similar)
  
• Solid
  understanding of software architecture, integration, and debugging
  

Assets

• Experience
  with Kotlin and/or Android development
  
• Working
  knowledge of C#
  
• Familiarity
  with MVVM architecture
  
• Front-end
  experience with Vue.js or similar frameworks
  
• Exposure
  to SQLite, Liquibase, or similar data tools
  
• Exposure
  to NATO standards or STANAG 4586
  
• Previous
  work on command-and-control (C2) systems or defence-related
  platforms
  

Education

• Degree
  in Computer Science, Engineering, IT, or related field
  
• Equivalent
  hands-on experience in defence or secure environments will be considered
  

Core Competencies

• Strong
  problem-solving and analytical thinking
  
• Ability
  to work effectively in cleared, multi-stakeholder environments
  
• Clear
  and professional communication skills
  
• Experience
  with automation, monitoring, and secure development practices
  

Work Environment

• Based
  in Kanata, ON, Hybrid, 4 days on-site (might be some flex here,
  maybe)
  
• Collaboration
  with internal colleagues, government, military, and contractor teams
  
• Business
  casual / casual
  

How to Apply

If you are a SECRET-cleared software developer in the
Ottawa area looking for meaningful, long-term work in the defence space, we
encourage you to apply.

Submit your resume to The Source Staffing at jobs@thesourcestaffing. com