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Added 4 months ago
S&
Senior Piping Stress Engineer 1 - Nuclear
Sargent & Lundy
Toronto, ON · North York, ON
- Full-time
Coordinate and provide guidance to other engineers, project managers, client personnel, and suppliers to ensure a complete and timely design
Added 4 months ago
C
Senior Application Support Engineer - Assistant Vice President
Citi
Remote, Canada
- Full-time
- Remote
…and training of new recruits. Significant impact in terms of project size, geography, etc. by influencing decisions through advice, counsel and/or facilitating services to others in area of…
Added 4 months ago
TP
Senior Engineer, Project Development
TRANS-NORTHERN PIPELINES
Calgary, Alberta · Richmond Hill, Ontario
- Full-time
Reporting to the VP Engineering & Integrity , the Senior Engineer, Project Development is responsible for identifying, developing, and advancing strategic business opportunities and…
Added 3 months ago
A
Senior Fuel Handling Engineer
AtkinsRéalis
Mississauga, Ontario
- Full-time
…and our global team of consultants, designers, engineers and project managers, we can change the world. We're committed to leading our clients across our various end markets to engineer a…
Added 1 month ago
VG
Sr. Controls/Electrical Systems Engineer
Veralto Global
Guelph, ON · London, ON
- Full-time
The Senior Controls/Electrical Systems Engineer will lead and support the electrical design and delivery of multiple projects across North America, including aftermarket and new-build…
Added 2 months ago
Q
Firmware Engineer, Principal
Qualcomm
Toronto, ON
- Full-time
…a smarter, connected future for all. As a Qualcomm Software Engineer, you will design, develop, create, modify, and validate embedded and cloud edge software, applications, and/or…
Added 4 months ago
TT
Sr. Controls/Electrical Systems Engineer
Trojan Technologies
Guelph, Ontario · London, Ontario · CAN - London - Trojan Technologies
- Full-time
The Senior Controls/Electrical Systems Engineer will lead and support the electrical design and delivery of multiple projects across North America, including aftermarket and new-build…
Added 1 month ago
A
Senior Electrical Engineer
AECOM
Calgary, AB
- $150,000 to $220,000 CAD / year
- Full-time
We are seeking a highly skilled and experienced Senior Electrical Engineer to join our Canadian Mine Infrastructure team.
Added 1 month ago
A
Senior Electrical Engineer
AECOM
Burnaby, BC · Calgary, Alberta
- $150,000 to $220,000 CAD / year
- Full-time
We are seeking a highly skilled and experienced Senior Electrical Engineer to join our Canadian Mine Infrastructure team.
Added 1 month ago
A
Senior Electrical Engineer
AECOM
Mississauga, ON · Calgary, Alberta
- $150,000 to $220,000 CAD / year
- Full-time
We are seeking a highly skilled and experienced Senior Electrical Engineer to join our Canadian Mine Infrastructure team.
Added 1 month ago
A
Senior Electrical Engineer
AECOM
Markham, ON · Calgary, Alberta
- $150,000 to $220,000 CAD / year
- Full-time
We are seeking a highly skilled and experienced Senior Electrical Engineer to join our Canadian Mine Infrastructure team.
Added 1 month ago
EG
Senior Water Resources Engineer
Egis Group
Edmonton, AB
- $105,000 to $130,000 CAD / year
- Full-time
The Senior Water Resources Engineer position is based in Edmonton, Alberta, Canada and is responsible for the planning, analysis, and delivery of water resources engineering and hydraulic…
Added 4 months ago
Network Engineer, Foundation Services Automation
Meta
Quinte West, Ontario
Meta is looking for a talented, engineer to join the Edge and Network Services team. This team is responsible for processes and systems for deploying and supporting one of the world's…
Added 4 months ago
Network Engineer, Foundation & Support
Meta
Quinte West, Ontario
Meta is looking for an engineer to join the Edge and Network Services team. This team is responsible for processes and systems for deploying and supporting one of the world's largest, most…
Added 4 months ago
Data Center Controls Engineer, Canada
Amazon
Calgary, Alberta
…for innovating, deploying, optimizing, and maintaining the automation systems within the data centers. Automation systems consist of building management system (BMS) and electrical power…
Added 4 months ago
ME
Water Resources Engineer
Montrose Environmental Group
Calgary, Alberta · Edmonton, Alberta · CAN-Alberta-Edmonton
- Full-time
As an Water Resource Engineer, in our Calgary or Edmonton office, you’ll be responsible for assisting multiple projects where you will have increasing interaction with our…
Added 2 months ago
GS
Electrical Engineer/Designer
Grantek Systems Integration
Burlington, ON
- Full-time
Grantek is a recognized leading provider of integrated automation, smart manufacturing and industrial information solutions in the global marketplace. Our clients are some of the worlds…
Added 4 months ago
V
Lead Software Engineer
Validere
Calgary, Alberta · Toronto, Ontario
- Full-time
…decisions by streamlining operations with integrated data, automation, and predictive…
Added 5 months ago
A
Electrical Engineer
AECOM
Winnipeg, Manitoba
- $100,000 to $140,000 CAD / year
- Full-time
We are looking for a talented engineer with a power distribution, substation, protection and controls background to promote our skills to new clients and maintain our existing client base.…
Added 1 month ago
A
Senior Electrical Engineer
AECOM
Mississauga, ON · Calgary, Alberta
- $150,000 to $220,000 CAD / year
- Full-time
We are seeking a highly skilled and experienced Senior Electrical Engineer to join our Canadian Mine Infrastructure team.
Added 6 months ago
C
Lead Telecom Engineer - Electrical Utilities
CIMA+
Mississauga, Ontario · Guelph, Ontario
- $108,080 to $148,610 CAD / year
- Full-time
We are currently looking for an Intermediate to Senior Telecom Engineer to take our service offerings to the electrical utility sector in Ontario. The role will have a strong focus around…
Added 4 months ago
P
Sr. Automation Specialist
Propak
Airdrie, Alberta
- Full-time
The Senior Automation Specialist/Engineer must complete advanced, complex, and confidential tasks requiring strong understanding of basic engineering principles. Control System Specialists…
Added 4 months ago
TS
Sr. Software Developer - Hybrid/Secret Cleared
The Source Staffing
Ottawa, Ontario
- Full-time
/ Engineer to join a mission-critical program supporting the Department
Added 2 months ago
SI
IT Architect, Network
Saputo Inc.
Remote, Canada
- Full-time
- Remote
Qualifications / Certifications: CCNP / CCIE (or equivalent), Azure Network Engineer or similar, TOGAF (desirable), ITIL awareness (desirable)
Added 4 months ago
RP
Mechanical Design Engineer (Custom Machinery & Automation)
Remote People
Montreal, Quebec
- Full-time
You'll work on custom roll forming equipment, automation systems, material handling equipment, and integrated manufacturing solutions while collaborating closely with engineering,…

The Source Staffing

Sr. Software Developer - Hybrid/Secret Cleared

Ottawa, ON, Canada

Full-time

Apply About employer

Applications open in a new tab.

Job details

Job type: Full-time
Experience: Minimum 10 years of software development experience
Posting language: English
Posted: Jun 17, 2026

Original job description

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

Apply About employer

More about this job

Responsibilities

Design, develop, and integrate tactical software applications within an LC4ISR framework for the Department of National Defence. Responsibilities include resolving system-level interoperability challenges and contributing to a SAFe Agile delivery model.

Requirements

Requires an active Secret security clearance and a minimum of 10 years of software development experience in Java or C#. A degree in Computer Science, Engineering, or a related field is preferred.

Skills

Java
C#
Software Architecture
System Integration
Debugging
SAFe Agile
LC4ISR
Command-and-Control Systems
Technical Documentation
Verification and Validation
Secure Development Practices
Automation
Monitoring
Problem Solving
Analytical Thinking
Professional Communication

Benefits

Full Benefits
4 Weeks' Vacation

Visa sponsorship

Not detected in the job text

Keywords

Java
C#
LC4ISR
Secret Clearance
DND
SAFe Agile
Command-and-Control
C2 Systems
NATO Standards
STANAG 4586
Software Architecture
System Integration
Defence Technology
Secure Environments
Tactical Software
Verification
Validation
Interoperability
Technical Documentation
Automation
Monitoring

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