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Software Development Engineer in Test (SDET) – Performance Automation

Capgemini Engineering
Waltham, MA Full Time
POSTED ON 12/18/2025
AVAILABLE BEFORE 1/14/2026

Job Title: Software Development Engineer in Test (SDET) – Performance Automation

Job Location: Waltham, MA (100% onsite)

About the job you’re considering

This position requires an Engineer with a strong background in Python with Performance test automation. The ideal candidate will help us and our clients by designing and developing automated test suit to evaluate application performance on a Linux based platform and a Behavior-Driven Development (BDD) framework to ensure the quality and reliability of our software applications.

Your role

  • Design, Develop, and Implement Automated Performance Test Scripts: Create robust performance test scripts using Python to ensure comprehensive test coverage across all application features with performance need.
  • Analyzing test results: Work with developers and engineers to analyze test results and perform bug fixes to enhance application performance.
  • Collaborate with Cross-Functional Teams: Work closely with developers, product managers, and clients to understand application requirements and develop effective test strategies.
  • Providing technical expertise: Provide guidance on performance testing processes and standards to ensure quality throughout the Test development lifecycle.
  • Maintain and Enhance Performance Automation Framework: Continuously improve and maintain the existing performance automation framework and processes. Design and develop the automation framework for load testing.
  • Creating performance test plans: Develop comprehensive and well-structured performance test plans and strategies to monitor and optimize application performance.
  • Identifying performance issues: Identify performance bottlenecks and suggest corrective actions to improve system performance.
  • Participate in CI/CD Efforts: Engage in continuous integration and deployment practices to streamline testing workflows.
  • Document Testing Procedures: Prepare and maintain comprehensive documentation of test cases, results, and performance testing protocols.

Your skills and experience

  • Total (3- 7) years of proven experience in automation testing, with a strong understanding of the Software Testing Life Cycle (STLC) and performance testing methodologies.
  • Prior experience with Design & develops automated test suits (Linux & Python) to evaluate application performance.
  • Diagnose performance issues e.g. application speed (fps), scalability.
  • Proficient in Advance Python programming language.
  • Linux OS experience. (Rocky Linux 8.8 and above preferred)
  • Load testing – design & develop automation.
  • Strong analytical and problem-solving skills.
  • Analyze test results, identify bugs, and work with team to resolve issues (Jira).
  • Familiarity with continuous integration/continuous deployment (CI/CD) processes and tools (e.g., Jenkins, GitLab).
  • Experience with test automation tools (e.g. Loadrunner, Jmeter, etc.).
  • Master’s / bachelor’s degree in computer engineering, Computer Science, or equivalent.

Good to have:

  • Experience with Squish /Squish coco.
  • Experience with National Instruments (NI) PXI System.
  • Knowledge of API testing and tools (e.g., Postman, SoapUI).
  • Familiarity with Agile methodologies and practices.


Life at Capgemini

Capgemini supports all aspects of your well-being throughout the changing stages of your life and career. For eligible employees, we offer:

  • Flexible work
  • Healthcare including dental, vision, mental health, and well-being programs
  • Financial well-being programs such as 401(k) and Employee Share Ownership Plan
  • Paid time off and paid holidays
  • Paid parental leave
  • Family building benefits like adoption assistance, surrogacy, and cryopreservation
  • Social well-being benefits like subsidized back-up child/elder care and tutoring
  • Mentoring, coaching and learning programs
  • Employee Resource Groups
  • Disaster Relief


About Capgemini Engineering

World leader in engineering and R&D services, Capgemini Engineering combines its broad industry knowledge and cutting-edge technologies in digital and software to support the convergence of the physical and digital worlds. Coupled with the capabilities of the rest of the Group, it helps clients to accelerate their journey towards Intelligent Industry. Capgemini Engineering has 65,000 engineer and scientist team members in over 30 countries across sectors including Aeronautics, Space, Defense, Naval, Automotive, Rail, Infrastructure & Transportation, Energy, Utilities &

Chemicals, Life Sciences, Communications, Semiconductor & Electronics, Industrial & Consumer, Software & Internet.


Capgemini Engineering is an integral part of the Capgemini Group, a global business and technology transformation partner, helping organizations to accelerate their dual transition to a digital and sustainable world, while creating tangible impact for enterprises and society. It is a responsible and diverse group of 340,000 team members in more than 50 countries. With its strong over 55-year heritage, Capgemini is trusted by its clients to unlock the value of technology to address the entire breadth of their business needs. It delivers end-to-end services and solutions leveraging strengths from strategy and design to engineering, all fueled by its market leading capabilities in AI, generative AI, cloud and data, combined with its deep industry expertise and partner ecosystem. The Group reported 2024 global revenues of €22.1 billion.

Get the future you want | www.capgemini.com


Disclaimer

Capgemini is an Equal Opportunity Employer encouraging inclusion in the workplace. All qualified applicants will receive consideration for employment without regard to race, national origin, gender identity/expression, age, religion, disability, sexual orientation, genetics, veteran status, marital status or any other characteristic protected by law.


This is a general description of the Duties, Responsibilities and Qualifications required for this position. Physical, mental, sensory or environmental demands may be referenced in an attempt to communicate the manner in which this position traditionally is performed. Whenever necessary to provide individuals with disabilities an equal employment opportunity, Capgemini will consider reasonable accommodations that might involve varying job requirements and/or changing the way this job is performed, provided that such accommodations do not pose an undue hardship.


Capgemini is committed to providing reasonable accommodations during our recruitment process. If you need assistance or accommodation, please reach out to your recruiting contact.

Please be aware that Capgemini may capture your image (video or screenshot) during the interview process and that image may be used for verification, including during the hiring and onboarding process.

Click the following link for more information on your rights as an Applicant http://www.capgemini.com/resources/equal-employment-opportunity-is-the-law


Applicants for employment in the US must have valid work authorization that does not now and/or will not in the future require sponsorship of a visa for employment authorization in the US by Capgemini.

Salary : $120,000 - $130,000

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