Senior Software Developer in Test (LS680)

Telesat•Ottawa, ON

39d

About The Position

Our Software Development team architects, develops, tests and maintains the Telesat Lightspeed System Model, a state-of-the-art suite of engineering software tools running on high performance computing (HPC) infrastructure for the modeling of resource allocation and end-to-end communication system performance analysis of the Telesat Lightspeed satellite constellation. As a Software Developer in Test, you will ensure the quality and reliability of the System Model codebase, as well as the microservice ecosystem supporting it, through effective and automated software testing. The Senior Software Developer in Test will be responsible for writing software tools and scripts in addition to leveraging existing test frameworks and tools to perform integration, system, performance, and other tests to validate the functional and non-functional requirements of the product. They will also be responsible for integrating these tools and frameworks into the software development process by contributing to the continuous development and deployment pipelines.

Requirements

Bachelor's or Master's degree in Computer Science, Software Engineering, or a related field
5-9 years of relevant experience in software development and testing
Experience in Python and/or Java programming language
Experience with one or more of the following technologies: gRPC, REST, Message Queues, Databases, SQL, Azure, etc.
Experience working with multiple test automation tools and frameworks such as Selenium Web Driver, Katalon, Watir, Cucumber and others
Extensive experience with GitLab for version control and CI/CD processes and Git Runners for test automation
Solid understanding of Linux environments and command-line tools
Experience with Linux clusters and cluster job managers
Experience with agile development

Nice To Haves

Experience with Matlab language and programming platform is considered an asset

Responsibilities

Design, develop, and maintain Java (Java 17+) services within a distributed, event-driven architecture using Spring Boot.
Implement asynchronous workflows and event processing using Azure Service Bus and Event Hub where appropriate.
Package, deploy, and operate microservices on Kubernetes using Helm across multiple environments (dev/test/prod).
Contribute to service decomposition, domain boundaries, and API design with a focus on latency, throughput, reliability, and backward compatibility.
Design and implement reliable service-to-service communication using REST, gRPC, and messaging protocols.
Support protocol-agnostic ingress suitable for long-lived or reconnect-sensitive traffic.
Help optimize networking concerns (TCP behavior, connection pooling, backoff, circuit breaking) for high-scale traffic.
Contribute to multi-region resiliency design, including regional failover/failback mechanics, validation steps, and automation guardrails.
Embed production readiness into services: SLIs/SLOs, golden signals, standardized observability, failure-mode analysis, and post-incident architectural corrections.
Participate in and improve end-to-end readiness drills: failure scenario walkthroughs, runbook execution, and post-drill improvements.
Design for resilience via health checks, fault management, monitoring, rate limiting, bulkheads, and recovery-on-failure patterns.