Senior Software Test Engineer

Who Are We?

Are you someone that likes new challenges? Do you want to explore new technologies and help solve some of the world’s most difficult problems, like air quality and safety solutions? At TSI, these opportunities are real. Our engineers work with industry-leading experts both internally and externally. We encourage and enable our engineers to get into the field with customers to better understand their issues and solve their problems.

At TSI, you make a difference – every day.

TSI delivers innovative digital solutions across desktop, mobile, and cloud platforms that connect with advanced sensing devices and IoT ecosystems. As a Senior Software Test Engineer, you will drive hands‑on test automation, building and maintaining scalable frameworks, while providing metrics and visibility into test coverage, results, and quality trends. You will collaborate closely with engineers and product owners to integrate automated testing into CI/CD pipelines, ensure reliability at scale, and continuously improve testing practices.

The ideal candidate thrives in a collaborative, agile environment and stays current with modern testing tools.

In order to grow and build a successful career with TSI, you will be responsible for:

• Testing Software of Measurement Instruments: Plan and execute testing of software integrated with specialized measurement instruments, including devices for air flow, aerosol and dust monitoring, indoor/outdoor air quality, fluid dynamics, particle counting, biomedical testing, contamination control, and biohazard detection. Ensure reliability, accuracy, and performance of software controlling these instruments.
• Lead Automation Efforts: Take ownership of test automation strategy, planning, and execution for both instrument and application software. Design, build, and maintain robust, scalable automation frameworks using modern programming paradigms and best practices. Ensure automation plans are in place ahead of development work, and update tests, as needed.
• Metrics, Reporting, and Quality Transparency: Track and report test coverage, both manual and automated, per release and/or quarterly. Provide QA testing metrics, defect insights, and bug escapes to software leads, supervisors, and stakeholders. Continuously refine metrics to improve visibility into software quality.
• Collaboration and Stakeholder Communication: Maintain transparency of testing processes to stakeholders, including Software Teams, Product Owners, and Product Managers. Keep test plans, results, and Test Rail data current, share with key stakeholders, and encourage cross-team collaboration.
• Develop Comprehensive Automated Tests: Create sophisticated automated tests covering API, UI, backend, integration, and end‑to‑end scenarios, using tools such as Cypress, Playwright, Appium, Test Complete, Bruno, and other industry-standard frameworks. Make tests modular, reusable, and maintainable.
• CI/CD Integration and Test Infrastructure: Integrate automated tests into CI/CD pipelines. Make architectural decisions for testing infrastructure and tools. Analyze test failures, contribute to build stability, and ensure automation is aligned with production‑grade standards.
• Test Data and Environment Management: Implement advanced strategies for test data creation, anonymization, and maintenance, including synthetic data generation and database mocking. Design and manage test environments and test labs for both on‑premise and cloud‑based systems.
• Mentorship, Best Practices, and Innovation: Mentor and guide junior test engineers and QA team members, promoting automation best practices, reusable libraries, and continuous improvement across the organization. Stay current with emerging trends, tools, and methodologies in software testing, driving innovation and maintaining relevance in the field.

Required

• Bachelor’s Degree in Computer Science, Computer Engineering, or related discipline
• 5+ years of hands‑on experience in automated software testing, including test design, development, and execution
• Willingness to assist in manual or QA testing, as needed
• Strong expertise in…