Job Information
Leidos Expert Software Engineer in Chantilly, Virginia
Description
Leidos is seeking Software Developer-SME for a 200+ FTE program. The candidate will provide development engineering and programming support to projects and infrastructure support activities to include:
Provide database architectural and design capabilities
Develop unit and functional test plan
Provide the operations and maintenance of operational systems
Modify existing software to correct errors, allow it to adapt to new hardware, or to improve its performance
Analyze user needs and software requirements to determine feasibility of design within time and cost restraints
Consult with customers about software system design and maintenance
Coordinate software system installation and monitor equipment functioning to ensure specifications are met Design, develop, and modify software systems, using scientific analysis and mathematical models to predict and measure outcome and consequence of design
Develop and direct software system testing and validation procedures, programming, and documentation
Confer with systems analysts, engineers, programmers and others to obtain information on project limitations and capabilities, performance requirements and interfaces
Correct errors by making appropriate changes and then recheck the program to ensure that the desired results are produced
Conduct trial runs of program and software applications to be sure they will produce the desired information and that the instructions are correct
Compile and write documentation of program development and subsequent revisions, inserting comments in the coded instruction so others can understand the program
Write, update, and maintain computer programs or software packages to handle specific jobs, such as tracking inventory, storing or receiving data, or controlling other equipment
Consult with managerial, engineering, and technical personnel to clarify program intent, identify problems, and suggest changes
Perform or direct revision, repair, or expansion of existing programs to increase operating efficiency or adapt to new requirements
Written, analyze, review, and rewrite programs, using workflow chart and diagram, and applying knowledge of computer capabilities, subject matter, and symbolic logic
Write or contribute to instructions or manuals to guide end users
Investigate whether networks, workstations, the central processing unit of the system, or peripheral equipment are responding to a program’s instructions
Prepare detailed workflow charts and diagrams that describe input, output, and logical operational, and convert them into a series of instructions coded in a computer language
Consult with and assist computer operators or system analysts to define and resolve problems in running computer programs
Assign, coordinate, and review work and activities of programming personnel
Designs, Develops, and Maintains applications within the cloud environment. This can be for new applications development or the transition of legacy applications to the cloud environment.
Required Qualifications
Active TS/SCI with Polygraph
Requires BS degree and 12 years of prior relevant experience. Additional experience in lieu of degree
Demonstrated experience in multiple programming languages (Java, JavaScript, Python, and/or XML)
Experience managing and developing web software
Demonstrated experience with cloud services
Experience in Windows and/or Unix
Experience using code repositories such as Git
Demonstrated experience documenting such artifacts as code and methodologies
Familiarity with writing unit and integration tests
Desired Qualifications
Experience with Spring and Java
Experience with databases such as PostgreSQL
Experience working in an AGILE development environment
Ability to work collaboratively in a team environment
Experience with Docker, Kubernetes, and scalable/parallelized architecture
Possess a passion for learning new technologies and staying up to date with industry trends
Understanding of Intelligence Community customers and their priorities
FIP
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:
January 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 $131,300.00 - $237,350.00
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 (https://reportfraud.ftc.gov/#/) .
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.
REQNUMBER: R-00174888
All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status. Leidos will consider qualified applicants with criminal histories for employment in accordance with relevant Laws. Leidos is an equal opportunity employer/disability/vet.