Title: Test Development Engineer I Location: Chelmsford United States Full time Job Description: At ZOLL, were passionate about improving patient outcomes and helping save lives. We provide innovative technologies that make a meaningful difference in peoples lives. Our medical devices, software and related services are used worldwide to diagnose and treat patients suffering from serious cardiopulmonary and respiratory conditions. The Acute Care Technology division of ZOLL Medical Corporation develops and delivers innovative lifesaving products and software solutions to EMS, hospital, public safety, and military customers globally. Products include AEDs, trauma kits, ventilators, temperature management solutions, and more. Our dedicated employees take pride in their commitment to improving patient outcomes while delivering world-class customer service. At ZOLL, you wont just have a job. Youll have a career-and a purpose. Join our team. Its a great time to be a part of ZOLL! Job Type: Hybrid Job Summary The "Test Development Engineer 1" will support development of advanced test systems and methodologies for ZOLL medical devices. Responsibilities include designing, testing, documenting, validation and verification of new and existing test systems. The successful candidate is detail-oriented, a strong problem-solver, and eager to support delivery of innovative and efficacious testing solutions for ZOLL products. Essential Functions • Develop test methods and procedures to support manual and automated testing of ZOLL products • Design, document, update and validate and improvements for custom test hardware and software used in ZOLL test stations • Develop and update test requirements and plans used for supporting test stands and processes • Debug test fixtures and systems using common lab equipment (e.g., oscilloscopes, DMMs, function generators, etc.) • Prototype, build and debug circuit boards, cables and other components for use in ZOLL test systems • Document test results and analyze data using statistical tools to prepare technical reports • Support continuous improvement initiatives for ZOLL product testing while ensuring good manufacturing practices (cGMP) are maintained Required/Preferred Education and Experience • Bachelors Degree Science Degree (EE, ME, preferred) required • 0-2 years of engineering, technical or manufacturing experience required Knowledge, Skills and Abilities • Basic electro-mechanical skills, to include assembly, dis-assembly and repair assemblies • Experience with analog and digital circuitry preferred, high-voltage a plus • Familiar with basic engineering lab equipment and measurement instruments (e.g., oscilloscopes, DMMs, function generators, etc.) • Experience with test automation software such as LabVIEW, TestStand, Python, C/C# a plus • Strong attention to detail, analytical thinking, and problem-solving skills • Excellent written and verbal communication skills Physical Demands The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job. • Standing - Occasionally • Walking - Occasionally • Sitting - Constantly • Talking - Occasionally • Hearing - Occasionally • Repetitive Motions - Frequently ZOLL is a fast-growing company that operates in more than 140 countries around the world. Our employees are inspired by a commitment to make a difference in patients lives, and our culture values innovation, self-motivation and an entrepreneurial spirit. Join us in our efforts to improve outcomes for underserved patients suffering from critical cardiopulmonary conditions and help save more lives. The annual salary for this position is: Factors which may affect starting salary include geography, skills, education, experience, and other qualifications of the successful candidate. Details of ZOLLs comprehensive benefits plans can be found at www.zollbenefits.com . Applications will be accepted on an ongoing basis until this position is filled. For fully remote positions, compensation will comply with all applicable federal, state, and local wage laws, including minimum wage requirements, based on the employees primary work location. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, disability, or status as a protected veteran. ADA: The employer will make reasonable accommodations in compliance with the Americans with Disabilities Act of 1990.

• Join our team and play a key role in testing the backend of a customer’s CCaaS solution. • Support and improve existing test automation. • Identify and troubleshoot defects. • Validate new features to ensure system stability, scalability, and compatibility with evolving product functionality.

• Build and maintain automated tests for web, API, and integration scenarios - primarily using Playwright. • Convert existing manual and written test cases into reliable automated tests. • Help run and monitor automated tests within our CI/CD pipelines so issues surface early. • Investigate, document, and report defects clearly, then verify fixes. • Partner with developers to understand new features and spot potential issues early (a shift-left approach). • Help keep our test suites and test environments healthy, stable, and trustworthy. • Use AI-assisted tools (such as GitHub Copilot or Claude) to write, accelerate, and maintain automated tests as a regular part of your workflow.

Role Description The Software Test Engineer III plays a vital role in ensuring that high quality products are delivered on time, within budget and meet CompTIA standards. This work involves designing, developing, and maintaining automated testing using Playwright and TypeScript. The ideal candidate will have the ability to identify and log product issues based on execution of test cases and industry standard testing methodologies. Additionally, STE III will design and create test cases to ensure complete coverage of test plans while also maintaining and updating automated test scripts to ensure they remain accurate, relevant, and effective. While having excellent automation skills, the candidate will have excellent troubleshooting, analytical, and problem-solving skills and willingness to participate in manual testing regularly. Qualifications - Extensive experience in software development processes and QA methodologies - Experience developing automation scripts using Playwright, TypeScript, or equivalent tools and technologies - Effective oral and written communication skills - Strong experience in industry standard test management tools - Strong background testing in an Agile/Scrum methodology - Experience migrating or modernizing legacy automation frameworks (such as from Selenium) is highly desirable - Experience using AI-assisted development tools (such as GitHub Copilot or similar) to improve software testing, automation development, and engineering productivity Requirements - Responsible for identifying and investigating issues found during testing, and updating test cases based on discovered defects - Works closely with software developers and software test engineers to resolve issues - Develop and maintain automated test scripts to reduce repetitive manual testing - Participate in project-wide reviews of requirements, system architecture, and detailed design documents - Define Test Strategy and End to End Scenarios - Understands key daily reporting elements needed for stakeholders and partners - Participate on continuous improvement efforts within the QA organization - Research and evaluate new testing technologies and tools - Other relevant tasks, duties, or special projects as assigned Benefits - Health, Dental, and Vision Insurance & FSA/HSA Plans - Performance bonus up to 10% of base salary - Unlimited PTO & 15 Paid Holidays - Flexible Schedules & Summer Hours - 12 weeks of Paid Parental Leave - Sponsored Costco or Sam’s Membership - 401K Retirement Plan with 6% company match - Spot Bonuses for going above & beyond - Tuition Reimbursement - Home Office Allowance - Wellness Reimbursement - Student Loan Repayment - Broadband Stipend - Expected compensation based on experience and qualifications – $102,000 – $117,000