> Markdown version of [/jobs/ext/4440230-test-engineer-ts-sci-with-polygraph](https://www.wearedevelopers.com/jobs/ext/4440230-test-engineer-ts-sci-with-polygraph). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Test Engineer - TS/SCI with Polygraph - **Company:** General Dynamics Information Technology - **Location:** Bethesda, MD, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Testing (Software), Microsoft Excel, Application Programming Interfaces (APIs), Agile Methodology, Amazon Web Services, Systems Engineering, Automation of Tests, Bash Shell, Cloud Engineering, Cyber Security, Information Systems, Databases, Computer Engineering, Continuous Integration, Software Debugging, DevOps, Github, R (Programming Language), JSON, Apache JMeter, Junit, Python (Programming Language), Nunit, Windows PowerShell, Simple Data Format, Software Requirements Analysis, SQL Databases, Test Data, Test Management, Testng, Web Applications, Extensible Markup Language (XML), Data Processing, Scripting, Cloud Platform System, Performance Testing, Appium, Cypress (Programming Language), Gitlab, Pytest, Information Technology, Protractor, Selenium Webdriver, Software Version Control, Jenkins, Programming Languages, Data Generation - **Published:** October 8, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9228604/test-engineer-tssci-with-polygraph ## About the Role * Education: Bachelors Degree (Computer Engineering, Computer Science, Electrical Engineering, Information Systems, Information Technology, Cybersecurity, or a closely related discipline) * Required Experience: 6+ yrs * Required Technical skills: * Knowledge of testing and automated testing approaches * Desired Skills: * Knowledge of testing in a cloud architecture * Willingness and ability to stay updated with advancements in software testing, data creation techniques, tools, and best practices. * Security Clearance Level: TS/SCI with active polygraph * Location: Bethesda, MD - On Customer Site ## Description * Work with a team of systems engineers and software developers to specify, design, develop, test and deploy the end-state system. Development will take place in an iterative fashion using scrum techniques with inputs from multiple stakeholders. The work will be done in a dynamic stakeholder environment within AWS. Communicate with team leads and senior leadership and rapidly adjust direction in support of new and/or changing requirements. This effort will include a variety of activities, including: * Automated and manual software testing * Developing test plans based on software requirements and technical specifications. * Identifying new test scenarios and create detailed test cases to cover all aspects of the software. * Performing functional, regression, integration, usability, and performance testing as necessary. * Documenting defects and track them to resolution. * Working closely with team members to clarify requirements and resolve issues * Test Data Creation * Familiar with the creation and updating of various file formats (e.g. XML, JSON, CSV, Microsoft Excel) * Programming languages (e.g. Python, R, SQL) commonly used for data manipulation and generation. * Scripting languages (e.g., Bash, PowerShell) commonly used to automate routine tasks. * Working with databases and SQL for querying, inserting, and updating data as part of the generation process. * Assessing quality and validity of generated data. * Addressing challenges in data generation, such as generating data in formats suitable for specific applications. * Documenting data generation processes, including parameters used, assumptions made, and transformations applied. * Working with test automation tools (e.g. Selenium WebDriver, Appium, Cypress, JMeter) to validate web-based applications. * Using Zephyr for test management * Working with automation frameworks (e.g. JUnit, TestNG, NUnit, Protractor, PyTest) to test custom applications. * Understanding how to test headless applications using application programming interfaces (e.g. REST). * Debugging automated test scripts and understand application logs and error messages to pinpoint issues. * Working with large and small teams of software developers as part of an Agile process. * Familiarity with version control systems (e.g. GitHub, GitLab) for managing code and collaborating with other team members. * Working with CI/CD products (e.g. Jenkins, AWS Pipeline, DevOps) and integrating automated tests into the CI/CD process. * Working within cloud-based platforms (e.g. AWS)