Senior Test Automation Engineer

CACI International Inc.; Linthicum (MD); On-site; USD 87,000 - 182,000; Full time

Job summary

CACI International Inc. is seeking a Senior Test Automation Engineer to design, build, and maintain automated test solutions for REST APIs and web UIs. The role emphasizes Python-based automation, containerized test execution, and CI/CD integration using Jenkins and GitLab.

You will evolve the in-house automation framework, migrate from legacy Robot Framework to modern platforms, and contribute to tests across backend and UI layers while leveraging Linux tooling and SQL validation.

Qualifications

• Must have a TS/SCI with a Current CI poly to start
• Strong experience with Linux and Bash shell scripting from the command line and handling large data sets
• Advanced experience building test automation in Python, including Pytest-based frameworks
• Experience with Docker (or Podman) including building and maintaining images used in automation and CI/CD workflows
• Working knowledge of Jenkins and GitLab pipelines, including running containerized workloads and managing automated test stages
• Experience with REST API testing including validation of responses and authentication flows
• Familiarity with Robot Framework UI automation using Selenium in Python
• Education: 8 years TE experience and a relevant bachelor’s degree; 4 years additional TE can substitute a degree

Responsibilities

• Develop, maintain, and enhance automated test suites for back-end REST APIs and web UIs
• Build and maintain a scalable test automation framework with CI/CD integration
• Implement Python-based automation using Pytest, fixtures, and data strategies
• Create and maintain Docker/Podman container images for use in automation
• Integrate automated tests into Jenkins and GitLab pipelines with reliable reporting
• Use Linux CLI to parse logs, test outputs, and system data
• Support UI automation using Robot Framework and Selenium
• Plan and execute migration of in-house framework from Robot Framework to modern tools like Playwright
• Maintain SQL queries and integrate database validation in tests
• Troubleshoot CI failures and improve test reliability and coverage
• Contribute to continuous improvement of testing processes

Skills

Python automation

Linux command line

CI/CD

REST API testing

UI automation

Debugging

Education

Bachelor’s degree in Math/Science/Engineering or related

Tools

Docker

Podman

Jenkins

GitLab

Robot Framework

Playwright

Selenium

Pytest

Job description

Job Title: Senior Test Automation EngineerJob Category: EngineeringTime Type: Full timeMinimum Clearance Required to Start: TS/SCI with PolygraphEmployee Type: RegularPercentage of Travel Required: NoneType of Travel: None* * *The Opportunity:Seeking a Senior Test Automation Engineer to design, build, and maintain automated test solutions across both back-end services (REST APIs) and web user interfaces.Requires strong hands-on engineering skills in Linux command-line tooling, Python-based automation, containerized test execution (Docker/Podman), and CI/CD integration using Jenkins and GitLab pipelines.Help evolve the existing in-house automation framework, including planning and executing migration efforts from legacy Robot Framework implementations to newer platforms.Analyzes system requirements and concept of operations documents, acquisition plans, and system descriptions to develop test plans and procedures, prepare for and conduct the data collection and analysis, and report status and results.Supports the development of T&E documentation e.g., T&E Strategy, T&E Master Plan, Test Readiness Assessments, and T&E Reports.Responsibilities:1. Develop, maintain, and enhance automated test suites for back-end REST APIs and web-based user interfaces.2. Build and maintain a scalable, reliable test automation harness (framework) including execution, reporting, data setup/teardown, and CI/CD integration.3. Implement and expand Python-based test automation using Pytest, including fixtures, test data strategies, and robust assertions/validation.4. Create and maintain Docker/Podman container images used to run automation consistently across developer environments and CI pipelines.5. Integrate automated test execution into Jenkins and GitLab CI/CD pipelines, ensuring repeatable runs, clear reporting, and actionable results.6. Use Linux command-line tools and Bash shell scripting to locate, parse, transform, and report on large volumes of logs, test output, and system data.7. Support UI automation using Robot Framework and the Python Selenium library, including test stability improvements and best practices.8. Plan, estimate, and break down work for migrating the in-house test harness from legacy Robot Framework to a modern alternative (e.g., Robot Framework AIO or Microsoft Playwright).9. Maintain SQL queries and integrate database validation steps into automated tests were appropriate.10. Troubleshoot CI failures and test irregularity/volatility, improve test reliability, and contribute to continuous improvement.11. Apply knowledge of T&E conceptsQualifications:Required:1. Must have a TS/SCI with a Current CI poly to start2. Strong experience with Linux and Bash shell scripting, with demonstrated ability to work effectively from the command-line and process/report on large data sets (logs, test artifacts, results).3. Advanced experience building test automation in Python, including Pytest-based frameworks.4. Strong experience with Docker (or Podman) including building, versioning, and maintaining images used in automation and CI/CD workflows.5. Working knowledge of Jenkins and GitLab pipelines, including running containerized workloads and managing automated test stages.6. Experience with REST API testing, including validation of responses, authentication flows, and negative/error-path testing.7. Familiarity with Robot Framework UI automation using Selenium library (Python).Education:Eight (8) years' experience as a TE in programs and contracts of similar scope type and complexity is required. Bachelor's degree in Math, Science, Engineering, Statistics, Engineering Management or related discipline from an accredited college or w1iversity is required. Four (4) years of additional TE experience may be substituted for a bachelor' s degree.Desired:Experience planning and executing test automation framework migrations (e.g., Robot Framework to Microsoft Playwright or Robot Framework AIO).Experience improving CI performance, parallelization, and test execution efficiency in containerized environments.Strong debugging skills across services, CI logs, containers, and test reporting outputs.-What You Can Expect: A culture of integrity.At CACI, we place character and innovation at the center of everything we do. As a valued team member, you’ll be part of a high-performing group dedicated to our customer’s missions and driven by a higher purpose – to ensure the safety of our nation.An environment of trust.CACI values the unique contributions that every employee brings to our company and our customers - every day. You’ll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality.A focus on continuous growth.Together, we will advance our nation's most critical missions, build on our lengthy track record of business success, and find opportunities to break new ground — in your career and in our legacy.Pay Range :There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI, you will receive comprehensive benefits such as; healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits.The proposed salary range for this position is:$86,600 - $181,800CACI is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, age, national origin, disability, status as a protected veteran, or any other protected characteristic.