Functional​/API Tester - St. Louis, MO

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 bya 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 organizations unlock the value of technology and build a more sustainable, more inclusive world.

This role is based in St. Louis, MO

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.

• 6+ years of experience in API testing, with at least 3+ years in the Telecom domain.
• 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 $65,200 - $169,000

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.

The actual compensation offered to any candidate may fall outside of the posted range and will be determined based on multiple factors legally permitted in the applicable jurisdiction.

These may include, but are not limited to:
Geographic location, Education and qualifications, Certifications and licenses, Relevant experience and skills, Seniority and performance, Market and business consideration, Internal pay equity.

It is not typical for candidates to be hired at or near the top of the posted compensation range.

In addition to base salary, this role may be eligible for additional compensation such as variable incentives, bonuses, or commissions, depending on the position and applicable laws.

• 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 programs
• Other benefits as provided by local policy and eligibility

Compensation (including bonuses, commissions, or other forms of incentive pay) is not considered earned, vested, or payable until it becomes due under the terms of applicable plans or agreements and is subject to Capgemini’s discretion, consistent with applicable laws. The Company reserves the right to amend or withdraw compensation programs at any time, within the limits of applicable legislation.

Capgemini is an Equal Opportunity Employer encouraging inclusion in the…