Senior Python Test Automation Engineer

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 55 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 and Government 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 Satellite fleet consists of 12 GEO satellites, the Canadian payload on ViaSat-1 and one LEO 3 demonstration satellite. For more information, follow Telesat on X and LinkedIn or visit

We are seeking a senior Python Automation Engineer to design, build, and maintain scalable test automation frameworks for distributed, event-driven applications. This is a hands-on technical leadership role focused on Python-based automation, quality engineering, and team mentorship.

You will work closely with software developers, DevOps engineers, and architects to improve software quality, accelerate release cycles, and ensure reliable validation of APIs, user interfaces, and microservices. In addition to hands-on development, you will mentor engineers, coordinate testing activities, and help drive automation best practices across the team.

Key Responsibilities

• Design and maintain automation frameworks using Python and Pytest.
• Develop automated tests for APIs, web applications, and distributed microservices using Pytest, Selenium, and custom helper libraries.
• Validate Kafka-based event-driven workflows, messaging, and data integrity.
• Build reusable automation utilities using Trino, and other supporting technologies.
• Integrate automated testing into GitLab CI/CD pipelines and quality gates.
• Execute and troubleshoot automation in containerized and Kubernetes environments.
• Manage test execution, reporting, and defect tracking using Jira and Zephyr.
• Collaborate with developers and DevOps teams to diagnose and resolve complex system issues.
• Mentor junior and intermediate test engineers through coaching, code reviews, and technical guidance.
• Assist with test planning, work assignment, prioritization, and delivery coordination across the test team.

Education and Experience required

• 6-9 years of related experience in Test Automation 
• Strong Python development and automation experience.
• Advanced experience with Pytest and automated testing frameworks.
• Hands-on experience with Selenium-based UI automation.
• Experience testing REST APIs, microservices, and distributed systems.
• Experience with Kafka or similar event-driven messaging platforms.
• Experience with GitLab, CI/CD pipelines, and source control best practices.
• Experience using Jira and Zephyr for test management and defect tracking.
• Proven ability to mentor engineers and lead automation initiatives.
• Strong analytical, troubleshooting, communication, and collaboration skills.
• Bachelor’s degree in Computer Science, Software Engineering, Computer Engineering, or a related field, or equivalent practical experience.

Nice to have

• Experience with Trino, gRPC, or Kubernetes.
• Exposure to Prometheus, Grafana, OpenTelemetry, or distributed tracing.
• Experience in telecommunications, SDN, cloud-native platforms, or large-scale distributed systems.
• Experience working in AI-assisted software development environments.