Test Engineer

Catapult Federal Services; Arlington (VA); Hybrid; USD 110,000 - 150,000; Full time

Job summary

Catapult Federal Services in Arlington, VA (Hybrid) seeks an experienced Test Engineer/QA Engineer with a Secret clearance to develop and run automated tests for web UIs and REST APIs across .NET, Java, and Node stacks.

You will automate service validation, manage test data, and integrate tests into CI/CD pipelines using Docker/Kubernetes and OpenTelemetry observability tools. Strong problem-solving and documentation skills are required.

Qualifications

• Active DOD Secret Clearance required
• 4+ years of experience as a Test Engineer or QA Engineer
• Hands-on experience with automated testing frameworks (Selenium/Cypress, Postman/Newman, JUnit/NUnit, and/or Jest)
• Experience testing REST APIs and web applications across .NET, Java, and/or Node/NestJS stacks
• Experience with defect tracking and test management tools (Azure DevOps and/or Jira)
• Familiarity with CI/CD pipelines (Azure DevOps/GitHub Actions) and shift-left quality practices
• Exposure to MuleSoft Anypoint Platform or other enterprise integration testing
• Exposure to containerized test execution (Docker, Kubernetes)
• Exposure to observability tooling (OpenTelemetry, App Insights)
• Strong analytical and problem-solving skills with the ability to triage complex failures and drive root-cause analysis
• Strong written and verbal communication skills; able to clearly document findings and collaborate across development, BA, and platform teams
• Demonstrated ability to learn and adapt quickly in evolving technical environments

Responsibilities

• Build and maintain automated test suites for functional, regression, and smoke testing targeting web UIs and REST APIs (Selenium/Cypress, Postman/Newman, JUnit/NUnit/Jest)
• Automate validation of service contracts, error handling, and data transformations; verify MuleSoft flows across System/API/Process layers
• Log, prioritize, and validate defect fixes using Azure DevOps/Jira; provide clear reproduction steps and supporting evidence
• Create deterministic test data, stubs/mocks, and environment configurations; manage secrets securely and ensure test repeatability
• Maintain living test plans, suites, and dashboards; publish sprint quality reports and release readiness summaries
• Integrate tests into CI/CD pipelines (Azure DevOps/GitHub Actions) and contribute to pull-request quality gates (coverage, static analysis, linting)
• Author test runners and Docker files; execute suites inside Docker and assist with Kubernetes job orchestration for parallel test runs
• Capture structured logs and traces (OpenTelemetry/App Insights), triage failures, and support root-cause analysis with engineers

Skills

Test Engineer

QA Engineer

Automated testing frameworks

REST API testing

CI/CD pipelines

Azure DevOps

Jira

Docker

Kubernetes

OpenTelemetry / App Insights

Analytical / problem solving

Education

Bachelor's degree in Computer Science or related field

Tools

Selenium

Cypress

Postman

Newman

JUnit

NUnit

Jest

Job description

*NOT OPEN TO C2C OR W2 REFERRALS AT THIS TIME*

Location: Arlington, VA (Hybrid)

Clearance Required: Secret

Qualifications

• Active DOD Secret Clearance required
• Minimum of 4+ years of experience as a Test Engineer or QA Engineer
• Bachelor's degree in Computer Science or related field
• Hands-on experience with automated testing frameworks (Selenium/Cypress, Postman/Newman, JUnit/NUnit, and/or Jest)
• Experience testing REST APIs and web applications across .NET, Java, and/or Node/NestJS stacks
• Experience with defect tracking and test management tools (Azure DevOps and/or Jira)
• Familiarity with CI/CD pipelines (Azure DevOps/GitHub Actions) and shift-left quality practices
• Exposure to MuleSoft Anypoint Platform or other enterprise integration testing
• Exposure to containerized test execution (Docker, Kubernetes)
• Exposure to observability tooling (OpenTelemetry, App Insights)
• Strong analytical and problem-solving skills with the ability to triage complex failures and drive root-cause analysis
• Strong written and verbal communication skills; able to clearly document findings and collaborate across development, BA, and platform teams
• Demonstrated ability to learn and adapt quickly in evolving technical environments

Responsibilities

• Build and maintain automated test suites for functional, regression, and smoke testing targeting web UIs and REST APIs (Selenium/Cypress, Postman/Newman, JUnit/NUnit/Jest)
• Automate validation of service contracts, error handling, and data transformations; verify MuleSoft flows across System/API/Process layers
• Log, prioritize, and validate defect fixes using Azure DevOps/Jira; provide clear reproduction steps and supporting evidence
• Create deterministic test data, stubs/mocks, and environment configurations; manage secrets securely and ensure test repeatability
• Maintain living test plans, suites, and dashboards; publish sprint quality reports and release readiness summaries
• Integrate tests into CI/CD pipelines (Azure DevOps/GitHub Actions) and contribute to pull-request quality gates (coverage, static analysis, linting)
• Author test runners and Docker files; execute suites inside Docker and assist with Kubernetes job orchestration for parallel test runs
• Capture structured logs and traces (OpenTelemetry/App Insights), triage failures, and support root-cause analysis with engineers