Posted 5 months ago
Sr. Software Developer - Hybrid/Secret Cleared
@ The Source Staffing
Ottawa West, Ontario
Overview
The Source Staffing is hiring a Senior Software Developer for a Canadian defence technology organization supporting the Department of National Defence. The role designs, develops and integrates tactical LC4ISR command-and-control software in a hybrid Kanata arrangement with four office days. The posting states a salary of $90,000 to $110,000 and full benefits with four weeks' vacation.
Responsibilities:
- Concevoir, développer et améliorer des systèmes logiciels
- Soutenir l'intégration, la vérification et la validation
- Analyser et résoudre les problèmes de performance et d'interopérabilité
- Collaborer avec les équipes internes et les intervenants externes
- Examiner la documentation technique
Requirements summary:
- Cote de sécurité SECRET active et valide
- Minimum de 10 ans d'expérience en développement logiciel
- Maîtrise de Java et/ou C#
- Expérience en environnements sécurisés ou réglementés
- Bonne compréhension de l'architecture et du débogage logiciel
Tools & skills
Benefits mentioned
Source and dates
Source type not verified · zoho
- Employer posting date
- 2026-06-16
- First seen by our source
- 2026-10-09
- Source record updated
- 2026-10-10
These dates describe the source record, not a live verification that the employer is still hiring. Check the original posting.
Job details
| Seniority | Senior |
| Department | Software development |
| Experience | 10+ years |
| Hours per week | 40 (estimated) |
| Work setting | Office |
| Position | Mostly sitting |
| Physical demands | physical low · computer high |
| Languages | English |
| Education | Bachelor’s degree (preferred) |
| Fields of study | Computer Science, Engineering, Information Technology, Science |
| Security clearance | Secret |
| Perks mentioned | Generous paid time off |
Summary and details written by AI from the posting; the employer’s posting is the authority.
The Source Staffing
Saved company profile
Historical company information from a saved The Jobs API profile (LinkedIn/Crunchbase fields). It is not live-verified; figures may have changed. Missing values remain unknown.
Full company description
Source Staffing, Inc. (SSI) is a leading provider of temporary personnel and management support services for government agencies and private industry in the Washington, D.C. Metropolitan area. Our services are provided across a wide range of disciplines. SSI is organized to effectively operate and manage contracts of short or long term duration on both a regional and national level. Contract services are organized and monitored through three major service groups: Facilities Operations Support Management Services Support Professional & Administrative Staffing Support A diversified staff of dedicated professional and technical experts supports each of these service areas. SSI has consistently supplied timely and quality staffing support to numerous federal government agencies since 1988 and has the management structure and the quality control procedures in place to service these labor hour base requirements. 492210 – Information Management Services 518210 – Data Processing, Hosting and Related Services 541513 – Computer Facilities Management Services 541611 – Administrative Management & General Management Consulting Services 541612 – Human Resources and Executive Search Consulting Services 561110 – Office Administrative Services 561210 – Facility Support Services 561320 – Professional Administrative Support Personnel 561439 – Other Business Service Centers (Including Copy Shops)
- LinkedIn followers
- 40
- People associated on LinkedIn
- 5
- Reported office locations
- 8630 Fenton Street, Suite 402, Silver Spring, Maryland 20910, US
- Other recorded names
- The Source Staffing
- Source Staffing, Inc.
- Specialties
- Temporary Staffing and Long-Term Staffing
- Profile identifies a recruitment agency
- Yes
Source Staffing, Inc. (SSI) is a leading provider of temporary personnel and management support services for government agencies and private industry in the Washington, D.C. Metropolitan area. Our services are provided across a wide range of disciplines. SSI is organized to effectively operate and manage contracts of short or long term duration on both a regional and national level. Contract services are organized…
| Field | Value |
|---|---|
| Industry | Staffing and Recruiting |
| Company size | 11-50 employees |
| Headquarters | Silver Spring, Maryland |
| Organization type | Privately Held |
| Year founded | 1982 |
| Specialties | Temporary Staffing and Long-Term Staffing |
| Open jobs on Jobsy | 3 |
| View page |
Senior Software Developer - Hybrid/Secret Cleared 90-110k
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. Please note that while the need to apply is urgent, and initial confirmation may come within a week, the actual start date may likely be 3-5 weeks.
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 10 years of software development experience
- Proficiency in Java and or C#
- Experience working in secure or regulated environments (defence, public sector, or similar)
- Solid understanding of software architecture, integration, and debugging
Assets
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, Science 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 (flexible)
- Collaboration with internal colleagues, government, military, and contractor teams
- 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 for this or for future consideration
Submit your resume to The Source Staffing at jobs@thesourcestaffing. com
Benefits
Full Benefits; 4 weeks' Vacation
Journal
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