Senior System Engineer

Job Description

Senior System Engineer – Telesat

Join to apply for the Senior System Engineer role at Telesat. Telesat (Nasdaq and TSX: TSAT) is a leading global satellite operator, providing reliable and secure satellite‑delivered communications solutions worldwide to broadcast, telecommunications, corporate and government customers for over 50 years. Backed by a legacy of engineering excellence, reliability and industry‑leading customer service, Telesat has grown to be one of the largest and most successful global satellite operators. Telesat Lightspeed, our revolutionary Low Earth Orbit (LEO) satellite network, scheduled to begin service in 2027, will revolutionize global broadband connectivity for enterprise users by delivering a combination of high capacity, security, resilience, affordability, ultra‑low latency and fiber‑like speeds. Telesat is headquartered in Ottawa, Canada, and has offices and facilities around the world.

The System Modeling team architects, develops, and maintains the Telesat Lightspeed System Model application, a state‑of‑the‑art engineering software tool running on high‑performance computing (HPC) infrastructure for modeling resource allocation and evaluating end‑to‑end system performance of the Telesat Lightspeed satellite constellation.

Primary Responsibilities

• Develop and test algorithms in MATLAB to enhance Lightspeed system performance and reliability.


• Perform detailed performance analysis of the Lightspeed constellation in terms of data throughput, latency, satellite hand‑over, availability, system capacity, and regulatory compliance.


• Collaborate with System Modeling, Software Development, Quality Assurance, and System Design teams for integration and testing of algorithms.


• Provide technical leadership and guidance to junior engineers in the System Modeling team.


• Interface with other Telesat teams regarding satellite payload, ground segment characteristics, performance metrics, evaluations, and regulatory compliance.


• Support trade‑off analyses and system architecture evaluations.


• Write technical documentation.


• Follow Agile software development methodologies.


• Ensure code quality through unit testing, refactoring, and adherence to coding standards.

Education & Experience

• Bachelor's or Master's degree in Electrical Engineering, System Engineering, Aerospace Engineering, or a related field.


• Minimum 5 years of related system design and modeling experience.


• Strong background in software development lifecycle.


• Experience with MATLAB.


• Experience with agile development and CI/CD tools is desirable.


• Experience with cluster job managers is desirable.


• Knowledge of radio communication systems and/or satellite communication is desirable.

Specialized Knowledge, Skills & Abilities

• Creative problem‑solver with thorough attention to detail.


• Highly collaborative team‑player who can quickly earn the confidence of co‑workers.


• Experience in mathematical optimization, including linear programming, is desirable.


• Excellent oral and written communication skills.


• Ability to self‑prioritize tasks, needs, and resources.


• An aptitude for and interest in complex technology.


• Fluent in English; French is an asset.

The successful candidate must be able to work in Canada and obtain clearance under the Canadian Controlled Goods program (CGP).

Location & Compensation

Ottawa, Ontario, Canada. Salary range: CA$103,114.00 – CA$139,841.00.

Equal Opportunity Employer

At Telesat, we are committed to providing the best candidate experience possible, including any required accommodations at every stage of our interview process. All qualified applicants that have been selected for an interview and require accommodations are advised to inform the Telesat Talent team accordingly. All accommodation information provided will be treated as confidential. We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.