Software Tester

MANTECH is seeking a Software Tester in Herndon, VA. Join a high performing team of Software Developers, DevOps Engineers and Data Engineers delivering automation and big data analytics for the Intelligence community. The Software Tester will conduct testing and quality assurance as part of an elite team that builds applications, automates processes within the operational environment, and enables the customer to be able to measure system security and compliance levels. Responsibilities include, but are not limited to:Execute all aspects of software testing (manual or automated)Test application functionality that our customers use to demonstrate cybersecurity compliance and protection from threatsEnhance the software testing capabilities for our customer’s GOTS applicationsAct as a central point of contact, with responsibility for software testing activitiesLearn the applications and create test cases for each new additional feature and function of the applicationsPerform regression testing to ensure the integrity of the productInclude clear screenshots/graphics and descriptions of failed tests in the test documentationUnderstand the user experience with the applications by attending user forums to hear the issues that users are having with the applications or processes supporting themCollaborate with developers to resolve identified bugs or defects and verify fixesRequired Qualifications:5+ years of experience in software testingExperience in testing and debugging COTS/GOTS softwareDetail oriented with strong analytical or problem-solving skills; ability to identify edge casesExperience with adapting to changing prioritiesExperience successfully performing as an individual contributor and collaborating within a teamPreferred QualificationsExperience with Selenium or other testing automation tools for efficiencyExperience testing in Linux and Windows environmentsClearance Required: Active/Current TS/SCI with polygraphPhysical Requirements:Must be able to remain in a stationary position 50%

Created: 2026-03-05