API Software Tester

ARS is seeking a senior level, detail-oriented API Software Tester to join our quality assurance team. The successful candidate will be responsible for testing software applications, identifying defects, and ensuring our products meet quality standards before release.

Why Work with us?

Applied Research Solutions (ARS) is respected as a world-class provider of technically integrated solutions as we deliver premier talent and technology across our focused markets for unparalleled, continuous mission support. Awarded a Best Places to Work nominee since 2020, ARS recognizes that without our career- driven, loyal professionals, we would not be able to deliver state-of-the-art results for our mission partners. We firmly believe that prioritizing our employees is of the upmost importance. We provide a culture where our employees are challenged to meet their career goals and aspirations, while still obtaining a work/life balance. ARS employees are motivated through our industry competitive benefits package, our awards and recognition program, and personalized attention from ARS Senior Managers.

Responsibilities include :

• Design, develop and execute API test cases (functional, regression, integration, performance and security tests)


• Validate API responses for accuracy, performance, reliability and compliance with business requirements


• Use API tools to automate and execute test suites


• Analyze API logs, errors and response payloads to identify defects and root causes


• Collaborate with developers, product owners and Test team members to review API specifications and clarify requirements


• Create and maintain automated API test scripts using scripting languages


• Integrate API automation tests into CI/CD pipelines (Gitlab)


• Document test cases, test results and defects with clear reproduction steps


• Ensure API quality standards including performance, scalability and security best practices


• Participate in requirements review meetings to ensure testability and quality considerations


• Maintain and update test documentation and procedures


• Support release management activities and deployment testing


• Perform compatibility testing across different browsers, devices, and operating systems


• Contribute to test automation efforts when applicable


• Other duties as required

Qualifications / Technical experience required :

• Must be a US citizen


• Ability to obtain a Secret Clearance


• Bachelor's degree in Computer Science, Information Technology, or related field, or equivalent experience


• Security +


• Strong understanding of software testing methodologies and best practices


• Experience testing web applications and APIs


• Experience with API testing tools (Swagger)


• Gitlab experience


• Strong analytical and problem-solving skills


• Excellent written and verbal communication abilities


• Attention to detail and commitment to quality

  All positions at Applied Research Solutions are subject to background investigations. Employment is contingent upon successful completion of a background investigation including criminal history and identity check.

This contractor and subcontractor shall abide by the requirements of 41 CFR 60-741.5(a). This regulation prohibits discrimination against qualified individuals on the basis of disability, and requires affirmative action by covered prime contractors and subcontractors to employ and advance in employment qualified individuals with disabilities.

This contractor and subcontractor shall abide by the requirements of 41 CFR 60-300.5(a). This regulation prohibits discrimination against qualified protected veterans, and requires affirmative action by covered contractors and subcontractors to employ and advance in employment qualified protected veterans.