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L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers’ mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do.

L3Harris is the Trusted Disruptor in defense tech. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security.

Job Title: Integration & Test Software Engineer

Job Location: Montréal, QC

Job Code: 37709

Job Schedule: Day Shift

Compensation Range: Between $62,500 - $112,500 CDN annually

Essential Functions:

• Execute system-level software validation and integration tests across multiple environments, including lab setups, simulators, and test platforms.
• Analyze test results and produce clear, structured defect reports to support efficient resolution by development teams.
• Perform manual validation activities while developing and maintaining automated test cases where appropriate.
• Investigate and troubleshoot system-level issues by reproducing problems, isolating failure conditions, and supporting root cause analysis.
• Act as a technical generalist, contributing across multiple subsystems (e.g., HMI, control systems, communication interfaces) to support integration and validation activities.
• Support validation of software changes from multiple development teams and assess system-wide impacts.
• Assist in maintaining and configuring test environments, including system setup, software deployment, and configuration management.
• Collaborate closely with software developers, system engineers, and integration teams to ensure system coherence and readiness.
• Support customer-facing validation activities, including Factory Acceptance Tests (FAT), Set-To-Work (STW), and commissioning phases.
• Participate in on-site troubleshooting and investigation activities when required, including potential travel to customer locations (ships or training systems).
• Provide timely and structured feedback to internal teams on issues identified during testing or field operations.
• Contribute to continuous improvement of validation processes, including expanding automation coverage and efficiency.
• Develop and maintain test procedures, validation documentation, and knowledge artifacts.
• Take initiative to expand technical knowledge and progressively contribute to integration activities, with a growth path toward an Integration & Test Specialist role.

Qualifications:

• Bachelor’s degree or technical diploma in Software, Computer, Electrical or Systems Engineering, or a related discipline, or equivalent practical experience.
• 3+ years of relevant experience in software testing, system validation, integration, technical support, or service engineering roles.
• Hands-on experience executing manual software tests and documenting defects with clear, structured reporting.
• Demonstrated ability to troubleshoot and debug issues across multi-component systems, including software, configuration, interfaces, and basic hardware interactions.
• Good understanding of software development lifecycle (SDLC) and validation processes.
• Strong analytical and problem-solving skills with a high level of curiosity and initiative.
• Ability to operate as a polyvalent/generalist contributor, capable of understanding multiple subsystems and adapting quickly.
• Strong written and verbal communication skills, with the ability to clearly document issues and communicate findings to technical teams.
• Comfortable working in dynamic environments with evolving priorities and incomplete information.
• Bilingualism (French and English) is required due to contractual requirements. 

Preferred Additional Skills:

• Exposure to scripting or test automation (e.g., Python, Bash, or similar) is considered an asset.
• Experience with automated testing tools (e.g., TestComplete) is considered a strong asset.
• Familiarity with system-level environments, including integration platforms, simulators, or lab/test setups is an asset.
• Experience with communication protocols, networking concepts, or distributed systems is an asset.
• Experience supporting field activities such as FAT, STW, commissioning, or customer support is an asset.

Eligibility Criteria:

• Must be eligible for registration with the Controlled Goods Program;
• Must be eligible to obtain and maintain a government of Canada Reliability status and Secret Level 2/NATO Secret security clearance;

L3Harris is proud to be an equal opportunity employer and is committed to treating all of its employees and job applicants with respect and dignity and to maintaining a workplace free from discrimination. Anyone applying for a position will be considered without regard to the following: race, national or ethnic origin, colour, religion, age, nationality, ancestry, ethnicity, gender, sex, sexual orientation, gender identity or expression, marital status, family status, genetic characteristics, disability, citizenship status, or conviction for an offence for which a pardon has been granted or in respect of which a record suspension has been ordered, or any other characteristic that is protected by applicable human rights legislation.

L3Harris maintains a drug-free workplace and conducts pre-employment drug and alcohol testing and background checks, in accordance with applicable law. Such results are only accessible and viewed by individuals at L3Harris who have direct responsibility in the hiring process. If you fail to report for a drug and alcohol test, refuse to undergo such test or test positive for the presence of drugs or alcohol, the hiring process may be concluded or your offer of employment may be rescinded, in L3Harris’ sole discretion.

This job is for an existing vacancy

At L3Harris, we foster an inclusive and equitable workplace. L3Harris is committed to treating all employees and applicants for employment with respect and dignity and maintaining a workplace that is free from unlawful discrimination. For applicants with disabilities, we will provide you with accommodation so that you have what you need in order to be at your best.

L3Harris performs background checks prior to employment as all applicants must be eligible for registration with the Controlled Goods Program and obtain and maintain a positive security assessment. Some positions may require a government of Canada “Reliability” status and/or Level 2 (Secret) security clearance. In addition, L3Harris performs pre-employment substance abuse testing where required.