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Senior Software Engineer

Job in Montréal, Province de Québec, H2B, Canada
Listing for: DEFSEC Technologies Inc.
Full Time position
Listed on 2026-02-14
Job specializations:
  • Software Development
    Software Engineer, Senior Developer
Job Description & How to Apply Below
Senior Software Engineer – LC4

ISR (ISTAR)
KWESST (a DEFSEC Technologies company) develops and delivers next generation military and public safety technology for military and first responder customers. The company is proudly Canadian and provides Dismounted/Mounted Domain Expertise in Command-and-Control software development, integration, and support services.

Job Description
KWESST Inc is seeking a highly skilled Senior Software Engineer to join our LC4

ISR team. This position will support the Canadian Armed Forces as part of the LC4

ISR program for the Department of National Defence (DND). The incumbent will design and implement DND’s ISTAR File Transfer System, SMVP Recording Server, and Sensor C&C specialty applications, focusing on maintaining reliability and scalability of these applications.

Job Responsibilities

Design, analyse, model and implement software systems.

Provide software and application integration, analysis, and evaluation support.

Recommend software‑related system‑level solutions for discrepancies, deficiencies, and changes to equipment and specifications.

Liaise with software development and application technical groups to ensure system integrity, performance, reliability, and maintainability.

Carry out independent investigations and analysis of third‑party software integration.

Review, analyse, and provide recommendations on software and applications, components and interface documentation.

Prepare planning and procurement support documentation for software and applications.

Conduct and/or witness software integration testing and evaluation.

Support the development and maintenance activities in accordance with SAFe‑Agile model practices.

Qualifications
Experience

Minimum of 10 years of software development experience.

Active SECRET security clearance.

Proficiency in Java and C#.

Familiarity with FATES, LAV Motion Imagery Service (LMIS) and LCSS Message Integrator (LMSI) is an asset.

Familiarity with NATO standards and STANAG 4586 is an asset.

Defence systems project experience on military or military command and control software systems.

Good problem‑solving and troubleshooting abilities.

Effective communication and collaboration skills.

Education
A Bachelor’s degree in Computer Science, Engineering, Information Technology, or other suitable technical field is required.

Skills

Security and Compliance

Monitoring and Logging

Problem Solving

Collaboration and Communication

How to Apply

If you have a strong passion for technical writing and are eager to join the dynamic team at KWESST for this position, we invite you to submit your resume. Please emphasize your pertinent experience and any certifications you may hold.

KWESST (a DEFSEC Technologies company) is an equal‑opportunity employer and is committed to providing equal employment opportunities to all qualified individuals regardless of race, color, religion, sex, gender identity, sexual orientation, marital status, national origin, age, disability or any other protected status under applicable law. We celebrate diversity and are dedicated to creating an inclusive work environment for all, including LGBTQ2S+ individuals.

Our hiring decisions are based on qualifications, merit, and business needs. In every step of the interview procedure, KWESST is committed to providing accommodations.

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Position Requirements
10+ Years work experience
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