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Systems Engineer

System Engineering Specialist

Job in Ottawa, Ontario, Canada
Listing for: Telesat
Full Time position
Listed on 2026-01-01
Job specializations:
  • Engineering
    Systems Engineer
Job Description & How to Apply Below
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    • System Engineering Specialist

    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, resiliency and affordability with ultra-low latency and fiber-like speeds. Telesat is headquartered in Ottawa, Canada, and has offices and facilities around the world.

    The company’s state-of-the-art fleet consists of 14 GEO satellites, the Canadian payload on Via Sat-1 and one LEO 3 demonstration satellite. For more information, follow Telesat on X and Linked In or visit (Use the "Apply for this Job" box below). Telesat’s System Modeling team architects, develops, and maintains the Lightspeed System Model—an advanced engineering software platform running on high-performance computing (HPC) infrastructure. This tool enables resource allocation modeling for Lightspeed operations and end-to-end performance evaluation of the Telesat Lightspeed satellite constellation.

    As a System Engineering Specialist, you will help lead the technical direction of the Lightspeed System Model. You will contribute to the development and integration of sophisticated algorithms, guide performance assessments, and influence architectural decisions that drive the success of the constellation. You will also mentor engineering teams and collaborate across departments to ensure technical alignment with system requirements and seamless integration into the overall Lightspeed system.

    Main Responsibilities

  • Take ownership of the design, development, and validation of advanced algorithms in MATLAB to optimize system performance and reliability while meeting system requirements.
  • Oversee performance analysis of the Lightspeed constellation, including throughput, latency, satellite handover, availability, capacity, and regulatory compliance metrics.
  • Drive cross-functional collaboration with System Modeling, Software Development, Quality Assurance, and System Engineering teams to ensure seamless integration and testing.
  • Provide technical leadership and mentorship to junior engineers, fostering innovation and continuous improvement.
  • Interface with other Telesat teams regarding topics such as satellite payload and ground segment characteristics, definitions of performance metrics, performance evaluations, and regulatory compliance.
  • Lead trade-off studies and system architecture evaluations, contributing to long-term planning and system evolution.
  • Author and review high-quality technical documentation.
  • Follow Agile software development methodologies.
  • Ensure code quality through unit testing, refactoring, and adherence to coding standards.

    • Education and Experience Required

  • Bachelor's or Master's degree in Electrical Engineering, System Engineering, Aerospace Engineering, or a related field.
  • Experience in related system design and modeling roles, with a minimum of 10 years in similar roles.
  • Strong understanding of software development lifecycle, Agile methodologies, and CI/CD tools.
  • Proven expertise in MATLAB and algorithm development.
  • Experience with Java is an asset.
  • Experience with HPC environments and cluster job managers is an asset.
  • Knowledge of radio communication systems and/or satellite communication is desirable.
  • Experience in mathematical optimization including linear programming is desirable.

    • Specialized Knowledge,

    Skills and Abilities

  • Creative problem-solver with thorough attention to detail.
  • Highly collaborative team-player who can quickly earn the confidence of co-workers and teammates.
  • Excellent communication, leadership, and…
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