Functional/API Tester - Denver, CO

Capgemini • Irving, TX

4d • Onsite

About The Position

This role is based in Denver, CO. 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.

Requirements

• 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, ReadyAPI).
• Excellent analytical, communication, and problem-solving skills.
• Solid understanding of test design techniques, defect lifecycle, and CI/CD integration.

Nice To Haves

• 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.

Responsibilities

• 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.

Benefits

• Paid time off based on employee grade (A-F), depending on grade: Vacation: 12-25 days
• Company paid holidays
• Personal Days
• Sick Leave
• Medical, dental, and vision coverage
• Retirement savings plans (e.g., 401(k) in the U.S., RRSP in Canada)
• Life and disability insurance
• Employee assistance programs

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed