Senior Automation Test Engineer – API & UI Quality

Catapult Solutions Group; Arlington (VA); On-site; USD 95,000 - 130,000; Full time

Job summary

Catapult Solutions Group in Arlington, VA is seeking a Test Engineer/QA Engineer to build and maintain automated test suites for web UIs and REST APIs, using Selenium/Cypress, Postman, and JUnit/NUnit/Jest. You will automate validation of service contracts, log defects, and contribute to CI/CD pipelines with Azure DevOps/GitHub Actions.

Collaboration across developers, BAs, and platform teams is essential. Qualifications include 4+ years in testing, a CS degree, and experience with

Qualifications

• 4+ years of experience as a Test/QA Engineer.
• Bachelor's degree in Computer Science or related field.
• Hands-on with automated testing frameworks (Selenium/Cypress, Postman/Newman, JUnit/NUnit, Jest).
• Experience testing REST APIs and web apps across .NET/Java/Node stacks.
• Defect tracking and test management in Azure DevOps/Jira.
• Familiar with CI/CD in Azure DevOps/GitHub Actions and shift-left quality.
• Exposure to MuleSoft Anypoint Platform or enterprise integration testing.
• Experience with Docker and Kubernetes for test execution.
• Observability tools like OpenTelemetry and App Insights.
• Strong analytical, communication, and root-cause analysis skills.

Responsibilities

• Build and maintain automated test suites for functional, regression, and smoke testing of web UIs and REST APIs.
• Automate validation of service contracts, error handling, and data transformations.
• Log, prioritize, and validate defect fixes in Azure DevOps/Jira with reproduction steps.
• Create deterministic test data, stubs/mocks, and environment configs; manage secrets.
• Maintain living test plans, suites, and dashboards; publish sprint quality reports.
• Integrate tests into CI/CD pipelines and contribute to PR quality gates.
• Author test runners and Docker files; run tests in Docker and Kubernetes jobs.
• Capture logs/traces (OpenTelemetry/App Insights) and assist root-cause analysis with engineers.

Skills

Test Engineer

QA Engineer

Automated testing

REST API testing

Selenium

Cypress

Postman

JUnit

NUnit

Jest

Azure DevOps

Jira

CI/CD pipelines

Docker

Kubernetes

OpenTelemetry

App Insights

Root-cause analysis

Communication

Education

Bachelor's degree in CS

Tools

Azure DevOps

Jira

Docker

Kubernetes

OpenTelemetry

App Insights

Job description

Catapult Solutions Group in Arlington, VA is seeking a Test Engineer/QA Engineer to build and maintain automated test suites for web UIs and REST APIs, using Selenium/Cypress, Postman, and JUnit/NUnit/Jest. You will automate validation of service contracts, log defects, and contribute to CI/CD pipelines with Azure DevOps/GitHub Actions.

Collaboration across developers, BAs, and platform teams is essential. Qualifications include 4+ years in testing, a CS degree, and experience with