Test Engineer – API/UI Automation (Hybrid, DoD Secret)

DANE LLC; Arlington (VA); Hybrid; USD 90,000 - 125,000; Full time

Benefits offered by this job

401(k)

401(k) matching

Dental insurance

Employee discounts

Health insurance

Paid time off

Vision insurance

Wellness resources

Job summary

DANE LLC is seeking a Test Engineer to join an agile quality engineering team supporting a federal modernization program in Arlington, VA. You will design, implement, and maintain automated test suites across APIs, UIs, and integrations, leveraging .NET, Java, NestJS, and MuleSoft stacks.

Responsibilities include building tests, integrating into CI/CD, and enhancing observability with OpenTelemetry and App Insights, while working in a hybrid onsite setting in Arlington.

Qualifications

• Bachelor's degree in Computer Science or related field.
• Active DoD Secret Clearance required.
• Minimum of 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 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

Strong analytical and problem-solving

Excellent written and verbal沟通

Education

Bachelor's degree in Computer Science or related field

Tools

Selenium/Cypress

Postman/Newman

JUnit/NUnit/Jest

Azure DevOps

Jira

Docker

Kubernetes

Job description

DANE LLC is seeking a Test Engineer to join an agile quality engineering team supporting a federal modernization program in Arlington, VA. You will design, implement, and maintain automated test suites across APIs, UIs, and integrations, leveraging .NET, Java, NestJS, and MuleSoft stacks.

Responsibilities include building tests, integrating into CI/CD, and enhancing observability with OpenTelemetry and App Insights, while working in a hybrid onsite setting in Arlington.