Leidos has a new and exciting opportunity for a Software Engineer (SWE) in our National Security Sector's (NSS) 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!
This position is eligible for a sign on bonus of $25,000.
Primary Responsibilities
- Test front-end user interfaces to ensure functionality and usability.
- Write and maintain automated test scripts for UI verification using tools such as Robot Framework (Python).
- Design and code new automated test scripts or modify existing ones to add new features.
- Debug existing automated test scripts and correct defects.
- Collaborate with developers to design, implement, and validate features in React and related front-end libraries.
- Support integration of UI components with back-end services written in Java and/or C++.
- Participate in Agile development teams, contributing to sprint planning, code reviews, and daily stand-ups.
- Document test cases, results, and processes to support ongoing quality assurance.
- Explore and apply other front-end automation tools as appropriate to improve efficiency.
Basic Qualifications
- Minimum of Seven (7) years' experience as a SWE in programs and contracts of similar scope, type, and complexity is required.
- Bachelor's degree in Computer Science or related discipline from an accredited college or university is required. Four (4) years of additional SWE experience on projects with similar software processes may be substituted for a bachelor's degree.
- Clearance Requirement: Active Top Secret/SCI clearance with Polygraph.
Preferred Qualifications
- Experience with front-end development and/or UI testing.
- Familiarity with React, Java, and/or C++.
- Ability to write test scripts in Python (Robot Framework experience strongly preferred).
- Hands-on experience with Robot Framework for UI automation.
- Exposure to other front-end automation tools (e.g., Selenium, Cypress).
- Knowledge of modern web technologies: JavaScript, TypeScript, HTML, CSS.
- Experience working in Agile development environments.
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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:November 20, 2025For 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.
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.
Top Skills
What We Do
We Are Leidos
For 50 years we have been tackling some of the biggest problems that face our nation and our world.
OUR MISSION
Through our culture of innovation and history of performance, we develop deep customer trust built on integrity and create enduring solutions that improve our world. Leidos is a science and technology solutions leader working to address some of the world’s toughest challenges in the defense, intelligence, homeland security, civil, and healthcare markets. The company’s 43,000 employees support vital missions for government and commercial customers. Headquartered in Reston, Va., Leidos reported annual revenues of approximately $11.09 billion for the fiscal year ended January 3, 2020.
Leidos was cited for the meaningful work employees perform that is challenging, impactful, and aligned with our customers’ missions as reasons professionals want to work and stay at our company. Leidos has also been named to lists including Forbes’ Best Employers for Diversity, Forbes’ America’s Best Employers for Women, Military Times Best for Vets Employers, and Ethisphere Institute’s World's Most Ethical Companies®.
Employees enjoy career enrichment opportunities available through mobility and development and experience rewarding relationships with supportive supervisors and talented colleagues and customers. Employees appreciate our flexible work environment, allowing for and encouraging a true work-life balance. Our professionals are also excited about our Employee Resource Groups, like the newly launched Collaborative Outreach with Remote and Embedded Employees (CORE), which strives to create an environment where every employee, regardless of location, feels fully engaged as a valued employee of Leidos.
Your most important work is ahead.
