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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Test Engineer - **Company:** CareerCircle - **Location:** Gaithersburg, MD, United States - **Experience:** Expert - **Salary:** $107,900.0 - $195,050.0 - **Contract:** Permanent contract - **Skills:** Testing (Software), HTML, JavaScript (Programming Language), Application Programming Interfaces (APIs), Agile Methodology, Amazon Web Services, Systems Engineering, Confluence, Automation of Tests, Big Data, Bioinformatics, Software Quality, CompTIA Security+, Information Systems, Computer Networks, Databases, Continuous Integration, Data Centers, Data Visualization, DevOps, Elasticsearch, JavaScript Libraries, Python (Programming Language), Microsoft Office, Scrum Methodology, Logstash, Software Engineering, Verification and Validation (Software), Test Data, Test Management, Strategies of Testing, Web Applications, Network Routing, Data Processing, Scripting, Enterprise Software Applications, Performance Testing, Data Ingestion, Spring Cloud, ReactJS, Cypress (Programming Language), Infrastructure as Code (IaC), Git, SC Clearance, Containerization, Integration Tests, Information Technology, Playwright, Apache Kafka, Kibana, Software Version Control, Devsecops - **Published:** September 3, 2026 - **Apply:** https://www.careercircle.com/jobs/all/all/usa/mo/saint-louis/0c0fab8a-fc13-4617-8207-1fe428f59cbd ## About the Role Planning Equities Scripting DevSecOps Pipelines Automation Innovation Market Data Prioritization Test Automation Ancient History Computer Science Software Testing Test Engineering Web Applications Agile Methodology CompTIA Security+ Process Improvement Systems Engineering Performance Testing Software Development Information Technology Cloud-Native Applications Software Quality (SQA/SQC) Python (Programming Language) Playwright (Software Testing) Troubleshooting (Problem Solving) JavaScript (Programming Language) Application Programming Interface (API) Certified Software Test Engineer (CSTE), Active Top Secret/SCI with the ability to successfully pass a Polygraph examination., * US citizenship is required per contract. * Bachelor's degree in Computer Science, Engineering, Information Technology or related field and 8-12 years of prior relevant experience or Master's with 6-10 years of prior relevant experience. * 8+ years of software testing or quality engineering experience. * Experience testing enterprise applications throughout the software development lifecycle. * Strong understanding of Agile methodologies and CI/CD processes. * Experience developing automated test solutions. * Knowledge of functional, integration, regression, system, and performance testing methodologies. * Strong analytical and troubleshooting skills. * Ability to communicate results and issues to technical and non-technical customer stakeholders., * Familiarity with automated testing frameworks (i.e., Playwright, Cypress, etc.) and scripting languages (JavaScript, Python). * Familiarity with enterprise applications and large-scale systems. * Experience with API, UI, database, and performance testing. * Knowledge of cloud-native applications and containerized environments. * Certifications such as ISTQB, CASTP, CAST, CSTE, Security+, or similar. #Chinook, Planning Equities, Scripting DevSecOps Pipelines Automation Innovation Market Data Prioritization Test Automation Ancient History Computer Science Software Testing Test Engineering Web Applications Agile Methodology CompTIA Security+ Process Improvement Systems Engineering Performance Testing Software Development Information Technology Cloud-Native Applications Software Quality (SQA/SQC) Python (Programming Language) Playwright (Software Testing) Troubleshooting (Problem Solving) JavaScript (Programming Language) Application Programming Interface (API), Certified Software Test Engineer (CSTE) Top Secret-Sensitive Compartmented Information (TS/SCI Clearance), DevOps Kibana Tooling Patience Equities Logstash DevSecOps Pipelines Operations Leadership Management Automation Innovation Creativity User Story Test Tools Testability Market Data Persistence Apache Kafka Communication Test Planning Collaboration Elasticsearch Test Strategy Data Ingestion Detail Oriented Test Automation Problem Solving Network Routing Data Processing Sprint Planning Test Management Ancient History Safety Assurance Software Testing Test Engineering Secret Clearance Agile Methodology CompTIA Security+ Computer Networks Acceptance Testing Data Visualization Amazon Web Services Elastic (ELK) Stack Integration Testing Information Systems Deductive Reasoning Atlassian Confluence Test Data Generation Big Data Application Sprint Retrospectives External Dependencies Test Automation Tools Verification And Validation Git (Version Control System) Infrastructure as Code (IaC) React.js (Javascript Library) User Acceptance Testing (UAT) HyperText Markup Language (HTML) Troubleshooting (Problem Solving) JavaScript (Programming Language) Application Programming Interface (API) ## Description * Lead planning, design, development, and execution of comprehensive test strategies. * Develop and maintain automated and manual test cases for web-based and enterprise applications. * Partner with software developers, systems engineers, and stakeholders to ensure quality throughout the software development lifecycle. * Perform functional, integration, regression, system, and performance testing. * Identify, document, prioritize, and track software defects through resolution. * Support CI/CD pipelines by integrating automated testing into DevSecOps workflows. * Champion testing best practices across the team. * Contribute to continuous process improvements that enhance software quality and program success., All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws. 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