Senior Software Test Engineer - Incognito Software Systems

Are you passionate about solving problems and delivering next-generation software to enhance the Internet experience? Join a global leader creating software for broadband service providers. We have been growing since 1992 and now work with some of the top service providers worldwide to deliver solutions that are innovative, creative, and make life easier for millions of subscribers. We are seeking a Senior Software Test Engineer in Ontario , Canada who thrives in a fast-paced global team environment.

In this role, you will own test strategy and execution for complex, distributed software systems covering backend services, frontend UIs, APIs, and performance at scale. This is a hands-on role for someone who understands how distributed systems fail, knows where to look, and builds the automation infrastructure to catch issues before they reach production.

Role and Responsibilities

Team Leadership

• Lead, mentor, and develop a team of 5+ test engineers across varying experience levels.
• Set technical direction for the team frameworks, standards, tooling, and automation strategy.
• Manage sprint workload, priorities, and cross-team coordination across multiple concurrent projects.
• Represent the QA function in leadership discussions, sprint planning, and architectural reviews.
• Build a team culture grounded in ownership, craftsmanship, and continuous improvement.

Backend & Distributed Systems Testing

• Design and execute comprehensive test strategies for distributed, microservices-based backend systems.
• Validate system behavior under real-world conditions including network partitions, service failures, message queue backlogs, and high concurrency.
• Test message-driven and event-driven architectures (e.g. Kafka, RabbitMQ) for correctness, ordering guarantees, and failure recovery.
• Validate data consistency, idempotency, and correctness across distributed components and databases.
• Build and maintain backend service integration and contract tests.

Frontend Testing

• Design and maintain automated UI test suites for web-based applications using tools such as Playwright, Cypress, or Selenium.
• Ensure cross-browser and cross-platform coverage with maintainable, reliable test scripts.
• Collaborate with frontend developers to embed testing early in the development cycle.

Performance & Load Testing

• Own performance testing strategy designing, executing, and analyzing load, stress, soak, and spike tests.
• Identify bottlenecks at the service, database, and infrastructure level and work with engineering teams to address them.
• Define performance baselines and SLAs, and build automated regression checks around them.
• Use tools such as JMeter, Gatling, k6, or Locust to simulate realistic productio