Senior Test Automation Engineer

Thermo Fisher Scientific

As a Sr Test Automation Engineer at Thermo Fisher Scientific, ensure quality and reliability for cloud-based scientific software. Collaborate on test automation frameworks and best practices.

Posted 6/17/2026full-timeRemote • Colorado, Kansas, Nevada, Utah • 🇺🇸 United StatesSenior💰 $93,800 - $140,675 per yearWebsite

Tech Stack

Tools & technologies

AzureJavaJavaScriptJMeterNoSQLSeleniumSQLTypeScript

About the role

Key responsibilities & impact

Design, develop, and maintain scalable and reliable automated test frameworks across UI, API, and performance layers.
Build and execute API, UI, and performance tests using automation frameworks like Selenium, Playwright, Appium, Rest Assured, or JMeter.
Apply BDD (e.g., Cucumber) or TDD approaches with maintainable and reusable test design patterns
Integrate automated testing into CI/CD pipelines, ensuring fast and reliable feedback
Improve test reliability by reducing flakiness and optimizing execution time
Enable parallel test execution and environment scalability
Ensure end-to-end test coverage by creating and maintaining comprehensive test cases, test plans, and test scripts.
Perform exploratory and risk-based testing to uncover complex defects and conduct root cause analysis and deep debugging of failures and defects
Analyze logs, data, and system behavior to identify hidden quality risks
Validate end-to-end workflows and complex integrations
Identify, document, and track defects using JIRA, Azure DevOps, or similar tools.
Collaborate with developers to improve testability and code quality
Write clean, maintainable, and scalable automation code following engineering best practices
Perform database validation using SQL/NoSQL

Requirements

What you’ll need

Education: Bachelor's or master's degree in computer science, Engineering, or related field.
Experience 8+ years of experience in software testing, test automation, and QA processes.
Proficiency in programming languages such as Java, Typescript, JavaScript, or C#
Hands-on experience with automation frameworks (e.g., Playwright, Selenium, Appium)
Experience with API testing (REST Assured, Postman, etc.)
Strong debugging, analytical, and problem-solving skills
Experience with CI/CD pipelines and modern development practices
Proficiency in database testing using SQL queries.
Must be legally authorized to work in the United States without sponsorship.
Must be able to pass a comprehensive background check, which includes a drug screening.

Benefits

Comp & perks

A choice of national medical and dental plans, and a national vision plan, including health incentive programs
Employee assistance and family support programs, including commuter benefits and tuition reimbursement
At least 120 hours paid time off (PTO), 10 paid holidays annually, paid parental leave (3 weeks for bonding and 8 weeks for caregiver leave), accident and life insurance, and short- and long-term disability in accordance with company policy
Retirement and savings programs, such as our competitive 401(k) U.S. retirement savings plan
Employees’ Stock Purchase Plan (ESPP) offers eligible colleagues the opportunity to purchase company stock at a discount

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

automated test frameworksAPI testingUI testingperformance testingBDDTDDSQLNoSQLdebuggingtest automation

Soft Skills

analytical skillsproblem-solving skillscollaborationcommunication