> Markdown version of [/jobs/ext/3644466-software-test-engineer-levels-i-iii](https://www.wearedevelopers.com/jobs/ext/3644466-software-test-engineer-levels-i-iii). 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). --- # Software Test Engineer, Levels I-III - **Company:** AERTRON, INC. - **Location:** Washington, DC, United States (Remote available) - **Experience:** Starter - **Salary:** $45,000.0 - **Contract:** Temporary contract - **Skills:** Testing (Software), Microsoft Word, Java (Programming Language), .NET Framework, Microsoft Excel, Agile Methodology, Artificial Intelligence, Software Applications, JIRA, Automation of Tests, Unit Testing, BASIC (Programming Language), Adobe Coldfusion, Databases, Continuous Integration, Linux, HP Loadrunner, Apache JMeter, Scrum Methodology, Systems Development Life Cycle, Regression Testing, Selenium, SQL Databases, Test Data, Scripting, Performance Testing, Postman, Backend, Integration Tests, Front End Software Development, Api Management - **Published:** October 9, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=dde8dc74ecdad7b7 ## About the Role * Level I (1+ year): Executes test cases, logs and tracks defects, and maintains existing automated scripts under guidance. * Level II (3+ years): Independently develops test plans and cases, and builds and maintains Selenium automation. Performs SQL and Linux-based validation and supports security and performance testing. * Level III (6+ years): Leads test planning and strategy for complex applications, and designs and improves automation frameworks. Drives performance and security testing and mentors junior testers., * U.S. citizen residing in the United States. * Able to obtain a federal Public Trust designation. * Software application testing experience for the level you're applying to. * Working knowledge of Selenium, Jira, SQL, and Linux. * Understanding of the SDLC and Agile/Scrum. * Highly organized, with strong attention to detail. * Proficiency with Microsoft Excel and Word. * Excellent verbal and written communication skills. Preferred * Federal, FAA, or DOT testing experience. * A current or prior Public Trust determination. * Performance-testing tools such as JMeter or LoadRunner. * API testing with Postman or REST Assured. * CI/CD-integrated test automation. * ISTQB certification. * Military veterans are strongly encouraged to apply. ## Description AERTRON, Inc. is a Service-Disabled Veteran-Owned Small Business (SDVOSB) specializing in AI assurance and safety analytics for safety-critical aviation systems. We're building a team of software test engineers to support an anticipated large-scale Federal Aviation Administration (FAA) enterprise IT modernization program. About the Work You'll plan and perform software testing throughout the development lifecycle for FAA applications being modernized from legacy .NET, Java, and ColdFusion systems to secure, cloud-ready architectures. You'll work alongside developers, engineers, and analysts in Agile teams to make sure applications are reliable, secure, and perform well at scale. What You'll Do * Develop, maintain, and execute test plans, test cases, test data, and results against defined requirements and acceptance criteria. * Perform integration, system, and regression testing, and support unit testing, across front-end, back-end, database, and interface components. * Create and maintain automated test scripts using Selenium and basic coding or scripting. * Document, prioritize, and track defects in Jira. * Use SQL and Linux to validate data, inspect environments, and troubleshoot. * Apply security best practices and performance-testing techniques, documenting risks, results, and recommendations. * Participate throughout the SDLC in Agile/Scrum teams to improve testability and quality.