Functional​/API Tester - Denver

Job Description

Choosing Capgemini means choosing a company where you will be empowered to shape your career in the way you’d like, where you’ll be supported and inspired by a collaborative community of colleagues around the world, and where you’ll be able to reimagine what’s possible. Join us and help the world’s leading organisations unlock the value of technology and build a more sustainable, more inclusive world.

We are seeking a highly skilled and hands‑on Senior API Tester with deep expertise in Telecom BSS/OSS systems and experience working with major telcos such as AT&T, T‑Mobile, Verizon, etc. The ideal candidate will be designing, executing, and maintaining API test strategies and automation frameworks, ensuring seamless integration and performance of telecom services.

• Design and implement comprehensive API test plans, test cases, and automation scripts.
• Perform functional, regression, performance, and security testing of RESTful and SOAP APIs.
• Conduct Telecom (Mobile Postpaid/Prepaid Service) testing with strong domain knowledge.
• Execute test design, test execution, and defect management processes.
• Assess test results, identify root causes of issues, and provide detailed reports and recommendations.
• Collaborate with cross‑functional teams to ensure quality and timely delivery.
• Communicate effectively with stakeholders and provide clear status updates.

• 2+ years of experience in API testing.
• Strong hands‑on experience with REST/SOAP API testing tools and automation frameworks (e.g., Postman, SoapUI, JMeter, Ready
  
  API).
• Excellent analytical, communication, and problem‑solving skills.
• Solid understanding of test design techniques, defect lifecycle, and CI/CD integration.
• Preferred Qualifications:
  • ISTQB or equivalent testing certification is a plus.
  • Familiarity with Telecom BSS/OSS systems and integration testing.
  • Experience with performance testing tools and security validation.

The base compensation range for this role in the posted location is $44,300 – $93,660. Capgemini provides compensation range information in accordance with applicable national, state, provincial, and local pay transparency laws. The base compensation range listed for this position reflects the minimum and maximum target compensation Capgemini, in good faith, believes it may pay for the role at the time of this posting.

This range may be subject to change as permitted by law.

• Paid time off based on employee grade (A‑F), defined by policy:
  Vacation: 12‑25 days, depending on grade, Company paid holidays, Personal Days, Sick Leave.
• Medical, dental, and vision coverage (or provincial healthcare coordination in Canada).
• Retirement savings plans (e.g., 401(k) in the U.S., RRSP in Canada).
• Life and disability insurance.
• Employee assistance programmes.
• Other benefits as provided by local policy and eligibility.

Capgemini is an Equal Opportunity Employer encouraging inclusion in the workplace. Capgemini also participates in the Partnership Accreditation in Indigenous Relations (PAIR) program which supports meaningful engagement with Indigenous communities across Canada by promoting fairness, accessibility, inclusion and respect. We value the rich cultural heritage and contributions of Indigenous Peoples and actively work to create a welcoming and respectful environment. 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.

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