React Software Developer

Description

The National Security Sector within Leidos is seeking a Full Stack Developer with a heavy concentration using React, with strong systems, software, cloud, and Agile experience. The qualified candidate will support a complex program providing Agile development and operations and maintenance for critical systems on a mission-critical program supporting the Passenger Systems Program Directorate (PSPD) within Customs and Border Protection (CBP). PSPD supports the Department of Homeland Security (DHS) and CBP critical missions, specifically screening and processing travelers at the ports of entry (POEs) into the United States.

In this hands-on position, you will work collaboratively to architect, design, build, deliver, and enhance highly available, scalable, real-time systems. You will exercise your judgment in determining and recommending the best designs based on customer business objectives, timelines, and other resource constraints. You will participate in and / or direct major deliverable of projects through all aspects of the software development life cycle including scope and work estimation, architecture and design, coding, and unit testing.

• This position REQUIRES the candidate to be in Ashburn, VA, twice a week

Basic Qualifications :

BS / BA degree and 8 years of related experience or Master's with 10 years of related experience; OR 4 years of related experience in lieu of degree

Thorough understanding of React and its core principles

Self-starter with experience with Enterprise level applications and can guide large team

Experience with Agile Scrum methodology and working in a SecDevOps environment

Experience working with containerized applications preferably utilizing Konvoy

3+ years' experience developing cloud ready applications and / or experience migrating applications to the cloud.

2+ years of experience in one of the following : JAVA, JSF, JavaScript, Spring, Automated test tools such as Selenium.

Proficient in JAVA, JavaScript, including DOM manipulation and the JavaScript object model

3+ years experience with Microservices / RESTful APIs

Hands on experience with HTML / CSS / SCSS

Hands on experience of modern authorization mechanisms, such as JSON Web Token (JWT)

Preferred Qualifications :

Hands on working experience with Redux Store for session management.

Hands on experience with more current specifications of EcmaScript (ES6)

Experience with common front-end development tools such as Babel, Webpack, NPM, Node etc.

A knack for benchmarking and optimization is plus.

AWS Developer or Solutions Architect certifications

Active Full CBP BI

Experience with Google Cloud

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 : December 4, 2025

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 $104,650.00 - $189,175.00

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

Securing Your Data

Beware of fake employment opportunities using Leidos' name. Leidos will never ask you to provide payment-related information during any part of the employment application process (i.e., ask you for money), nor will Leidos ever advance money as part of the hiring process (i.e., send you a check or money order before doing any work). Further, Leidos will only communicate with you through emails that are generated by the Leidos.com automated system - never from free commercial services (e.g., Gmail, Yahoo, Hotmail) or via WhatsApp, Telegram, etc. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com .

If you believe you are the victim of a scam, contact your local law enforcement and report the incident to the U.S. Federal Trade Commission .

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.