Application Tester

Leidos LLC; Chantilly (VA); On-site; USD 116,000 - 210,000; Full time

Benefits offered by this job

Health and Wellness programs

Income Protection

Paid Leave and Retirement

Job summary

Leidos is seeking an Application Tester to join a high-performing team supporting IDAM/ICAM services. The role covers manual and automated testing of two web-based applications with large user populations and web services.

You'll work with developers, DBAs, engineers, and a Scrum Master to ensure comprehensive test coverage. The position anticipates a 40-hour work week with core hours 9 AM–3 PM, and requires strong knowledge of test automation, API testing, and Katalon.

Qualifications

• Active TS/SCI with Polygraph required.
• Bachelor’s degree in Computer Science, Engineering, or related field; 12+ years experience.
• Automation testing experience with web and API testing.
• Familiarity with Agile/Scrum processes.

Responsibilities

• Design, develop, and maintain automated test scripts for web and API testing.
• Execute automated regression suites and analyze results.
• Collaborate with developers and QA peers to identify test scenarios and automation opportunities.
• Contribute to test planning, case design, and documentation.
• Perform manual testing as needed (functional/exploratory/regression).
• Report and track defects to closure with development teams.
• Stay updated with emerging test automation tools and techniques.

Skills

TS/SCI with Polygraph

Bachelor's degree

Automation testing

Katalon

API testing

Agile/Scrum

Problem solving

Software testing fundamentals

Education

Bachelor's degree in CS/Engineering

Tools

Katalon

Git

Jenkins/GitLab CI/GitHub Actions/Azure DevOps

JMeter

Job description

Job Summary

Leidos is seeking an Application Tester for a technical development program of 200+ FTE supporting the Sponsor’s Attribute/Entitlement Services within the IDAM/ICAM space. The Test Engineer will join an established, high-performing team supporting two web-based applications with extensive user interfaces serving a large end-user population, as well as organizations utilizing the applications web services. The ideal candidate will have testing experience, both in performing manual testing of web-based applications as well as testing automation experience. The candidate will work on a team comprised of developers, database administrators, systems engineers, security engineers, as well as program managers and a scrum master. The ideal candidate will be familiar with agile principles, specifically scrum. The candidate will be joining a team of two testers currently supporting the applications, and will be expected to master testing on both applications to ensure that the applications have sufficient test coverage.

The typical work week for the candidate is 40 hours (eight-hour days), with core hours being from 9 AM to 3 PM daily.

Primary Responsibilities

• Design, develop, and maintain automated test scripts for web and API testing.
• Execute automated regression suites and analyze results to ensure system reliability.
• Collaborate with developers and QA peers to identify test scenarios and automation opportunities.
• Contribute to test planning, case design, and documentation.
• Perform manual testing (functional, exploratory, regression) when needed.
• Report and track defects to closure in coordination with development teams.
• Stay updated with emerging test automation tools and techniques.

Required Skills

Active TS/SCI with Polygraph. Bachelor’s degree in Computer Science, Engineering, or related field and 12+ years of experience. Additional experience in lieu of degree. Software professional experience in QA with a focus on automation. Strong knowledge of automation the framework/tool Katalon. Experience in API testing. Understanding of software testing methodologies, SDLC, and Agile/Scrum. Strong problem-solving and analytical skills.

Desired Skills

Proficiency in at least one programming/scripting language (Java, Python, JavaScript, or C#). Basic knowledge of SQL for database testing. Experience with version control (Git). Familiarity with CI/CD tools (Jenkins, GitLab CI, GitHub Actions, or Azure DevOps). Knowledge of performance testing tools (JMeter, Lo) FIP #MSBA If you're looking for comfort, keep scrolling.

Company Culture

At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.

Posting Information

Original Posting: September 29, 2026. For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range

Pay Range $116,350.00 - $210,325.00. The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

Pay and Benefits

• competitive compensation
• Health and Wellness programs
• Income Protection
• Paid Leave and Retirement

Security

Leidos will never ask you to provide payment-related information at any part of the employment application process. And Leidos will communicate with you only through emails that are sent from a Leidos.com email address. If you receive an email purporting to be from Leidos that asks for payment-related information or any other personal information, please report the email to [e-mail].

Commitment and Diversity

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.

Company Information

Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $17.2 billion for the fiscal year ended January 2, 2026. For more information, visit www.Leidos.com.