QA Automation Engineer - 15 Month Contract

Who we are: Keystone AI (formerly Cambridge Brain Sciences) is a leading growth-stage B2B SaaS HealthTech company. Our proprietary brain health tools, including digital cognitive assessments and mental health questionnaires, are used by healthcare practitioners treating mental health conditions, brain injuries, aging, and other patient populations throughout the world, as well as by leading researchers. To learn more about our organization, please visit www.creyos.com . You will be part of a team that includes not just your typical SaaS business functions (Sales, Marketing, Customer Success), but also engineers, psychologists, business leaders, and even a world-renowned neuroscientist. We are proud to say that you will be surrounded by some of the smartest, enthusiastic, hard working and dedicated people that you’ll ever meet (at least, that we’ve ever met!). Who we are looking for: At Keystone AI , we understand that solving big challenges demands unwavering resilience and determination. We don’t stop until we achieve our goals. People who thrive at Keystone AI are driven, curious, hardworking, and enthusiastic about scaling a company—along with having a good sense of humor. If this resonates with you, we’d love to hear from you! As a QA Automation Engineer at Keystone AI , you will be a key guardian of our product quality. You will go beyond simply finding bugs; you will be an architect of our testing ecosystem, bridging the gap between manual precision and automated efficiency. You will play a critical role in ensuring our healthcare platform remains robust, compliant, and performant. This is a remote role based out of Canada for a 15 month Fixed-Term contract. What you will be doing as a QA Automation Engineer: Strategy & Execution: Shape and execute a comprehensive automated / Manual testing strategy that scales with our platform. End-to-End Validation: Design sophisticated test scenarios covering front-end features, back-end data integrity, third-party integrations, and strict regulatory compliance. Test Development: Build and maintain a sustainable library of functional and integration tests, including program code for automated scripts and high-fidelity test data. Requirement Analysis: Partner with Product and Engineering to review functional specifications, identifying edge cases and defining requirements for end-to-end use cases. Quality Advocacy: Adhere to and optimize our formal workflows. You will validate functionality, enhance code quality through peer reviews, and provide transparent reporting on test results. Cross-Functional Collaboration: Act as an intermediate-to-senior technical resource, working in a tight feedback loop with the Product and Tech teams to deliver collaborative, high-quality solutions. The Skills & Experience We’re Looking For: 5+ years of hands-on experience building and scaling robust automation frameworks. You are independent, passionate about your craft, and take true pride in the stability of the products you ship. A deep-seated understanding of software quality assurance methodologies and a relentless commitment to high standards. Proven experience in Agile environments, specifically utilizing TDD (Test-Driven Development) and BDD (Behavior-Driven Development). A strong grasp of Object-Oriented Programming (OOP) principles. Extensive experience with Ruby on Rails, Cucumber (Gherkin), RSpec, FactoryBot, Capybara, Selenium, SitePrism, HTML/CSS, JavaScript. Proficiency in Bitbucket for version control and a comfort level navigating complex ticket-based workflows (Jira). It would be great if you also have: Familiarity with the Hotwire stack (Turbo, Stimulus) and Tailwind CSS. Experience with AWS, Docker, and CI/CD pipelines (specifically CircleCI). Previous experience in the Healthcare industry, with an understanding of the nuances and compliance requirements (e.g., HIPAA, SOC2) that come with it. Our Technology Environment: Backend/Frontend: Ruby on Rails, HTML5, CSS, JavaScript (Hotwire/Stimulus) Infrastructure: AWS, Linux, Docker, CircleCI Tools: Git (Bitbucket), Jira, Confluence Some of the reasons people choose to join the Keystone AI team include: Grow through our career paths leading to more senior roles. We invest in the development of our team members, provide significant opportunities for growth and career advancement, and do everything we can to support one another to ensure individual and team success. In 2025, 37% of our team members were promoted at least once to more senior roles! Get access to comprehensive benefits. We pride ourselves on offering benefits covering medical, dental, vision, mental health, wellness and more. This role is targeting a salary of $65,000 CAD - $115,000 CAD. Additional information: Keystone AI uses an AI-powered tool as part of an automated process to support our hiring process by analyzing your experience, skills, and qualifications to help identify alignment with role requirements. These tools also assist with administrative tasks such as calendar invite