Software Tester

Leidos; Lawton (OK); On-site; USD 59,000 - 107,000; Full time

Benefits offered by this job

Paid Time Off

11 paid Holidays

401K with company match

Flexible Schedules

Discounted Stock Purchase Plans

Technical Upskilling

Education and Training Support

Parental Paid Leave

Job summary

Leidos in Oklahoma is seeking a Software Tester to join the Cyber & Analytics Business Area. The role supports CEMA, blending red/blue teams to uncover and address security-focused testing gaps.

Preferred candidates will have experience with C++, Python, Java, and automation tests in Linux/Windows, along with Jira and CI tools. A Top Secret clearance is required.

Qualifications

• 2–4 years of professional experience in software testing or QA.
• Experience developing and executing manual and automated test cases.
• Knowledge of Linux and Windows environments.

Responsibilities

• Perform test planning, monitoring, and execution.
• Develop and execute manual/automated test cases in Linux/Windows with repeatability.
• Review requirements and verify system/software requirements for coverage.
• Identify, document, reproduce, and track defects for resolution.
• Perform functional, integration, regression, and system testing.
• Collaborate with developers, systems engineers, and stakeholders to improve quality.
• Support Agile activities including sprint planning and release validation.
• Assist with automated testing capabilities and regression suites.

Skills

C++

Python

JavaScript

Java

C#

Linux

Windows

Testing

Automation

Defect tracking

Education

Bachelor's degree in Cyber Security, Computer Science, Computer Engineering, Electrical Engineering, or related Technical Degree

Tools

Qt

Jenkins

Groovy

Bash

PowerShell

Jira

Job description

Description

Leidos has a new and exciting opportunity for a Software Tester in our INTEL Sector's Cyber & Analytics Business Area (CABA). Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos, we offer competitive benefits, including

• Paid Time Off
• 11 paid Holidays
• 401K with a 6% company match and immediate vesting
• Flexible Schedules
• Discounted Stock Purchase Plans
• Technical Upskilling
• Education and Training Support
• Parental Paid Leave
• and much more

Join us and make a difference in National Security

The Software Tester will work with the CEMA (Cyber and Electromagnetic Activities) team. Our products are responsible for training the warfighter to recognize, identify, and respond to real-world CEMA attacks on their systems that might not otherwise be seen until they're on the battlefield. Our team has an additional product responsible for alerting our varied array of customers of potential cyber and EW attacks by creative adversaries highly skilled at attacking. Our CEMA team is comprised of both red and blue: hackers, programmers, mathematicians, and even physicists, so knowledge is easily shared among team members who are willing to ask questions. Problem solving, troubleshooting, software quality, and a desire to break things for good reasons remain the foundation of this role.

Primary Responsibilities:

• Performing test planning, monitoring, and execution.
• Developing and executing manual and automated software test cases in Linux/Windows environments with significant focus on repeatability.
• Reviewing and verifying system-level and software-level requirements while working with team members to better understand them.
• Discovering, documenting, reproducing, and tracking technical defects so team members can efficiently resolve issues.
• Performing functional, integration, regression, and system testing throughout the software development lifecycle.
• Collaborating with software developers, systems engineers, and other stakeholders to improve software quality and test coverage.
• Supporting Agile software development activities, including sprint planning, backlog refinement, and release validation.
• Assisting with the development and maintenance of automated testing capabilities and regression test suites.

Basic Qualifications:

• US Citizenship required and must be able to obtain a Top Secret security clearance
• Bachelor's degree in one of the following: Cyber Security, Computer Science, Computer Engineering, Electrical Engineering, or related Technical Degree.
• 2 to 4 years of professional experience in software testing, software quality assurance, software validation, or a related quality engineering role.
• Experience in C++, Python, JavaScript, Java, or C#.
• Experience developing and executing manual and automated software test cases.
• Experience reviewing software and system requirements to develop comprehensive test coverage.
• Knowledge of Linux and Windows.
• Experience documenting, tracking, and verifying software defects using defect management tools.
• Problem-solving skills (imagine a hundred exclamation points behind this qualification).

Preferred Qualifications:

• Experience developing and maintaining automated and/or unit test frameworks to support repeatable software testing.
• Experience using Qt and Python to develop, execute, or support software testing activities.
• Experience working with Jenkins and Groovy scripting to support continuous integration and automated testing pipelines.
• Experience developing and maintaining Bash and/or PowerShell scripts to automate testing and system administration tasks.
• Experience using Jira for defect tracking, test management, and Agile software development processes.

If you're looking for comfort, keep scrolling. 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.

Original Posting:

September 30, 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 $59,150.00 - $106,925.00

The Leidos pay range for this job level is a general guideline onlyand 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.

About Leidos

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 $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit www.Leidos.com.

Pay and Benefits

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement.

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

More details are available at www.leidos.com/careers/pay-benefits.

Commitment to Non-Discrimination

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.