Software Developer SME

Leidos LLC; Chantilly (VA); On-site; USD 154,000 - 278,000; Full time

Job summary

Leidos is seeking a Software Engineer to join a 200+ FTE program supporting Entitlement Programs as well as IdAM/ICAM, Authentication, Authorization and Digital Policy Management. You will work with a large team of developers and data engineers to modernize and secure IT systems while maintaining availability.

The role emphasizes legacy code modernization, AWS deployment, RESTful services using Java/Spring Boot and Angular (Typescript), and ETL development within an Agile/Scrum environment.

Qualifications

• Active TS/SCI with Polygraph.
• Master's degree and 15+ years of relevant experience (or equivalent).
• Experience with Java, Spring Boot, Angular (Typescript), and the Cloud / AWS.
• Proven ability to interpret customer requirements and translate into solutions.
• Experience developing custom ETL.
• Knowledge of Git, Jenkins, Selenium, and Rundeck.
• Experience working from a command line in RH Linux.

Responsibilities

• Maintain legacy applications and modernize legacy codebases.
• Write scripts to install and configure code on EC2 instances.
• Leverage AWS cloud services and develop RESTful APIs.
• Develop Java and Angular (Typescript) that leverage Elasticsearch.
• Design and implement custom ETL methodologies.
• Demonstrate strong communication, design, and documentation skills.
• Practice Agile & Scrum; mentor junior developers.

Skills

Java

Spring Boot

Angular (Typescript)

RESTful API design

AWS Cloud

ETL development

Unit testing & automation

Agile & Scrum

Mentoring & teamwork

Communication & documentation

Education

Master's degree + 15+ years experience or equivalent

Active TS/SCI with Polygraph

Tools

Git

Jenkins

Selenium

Rundeck

RH Linux CLI

EC2

Job description

Leidos is seeking a Software Engineer for a 200+ FTE technical development program supporting the Sponsor’s Entitlement Programs as well as IdAM /ICAM, Authentication, Authorization, Attributes and Digital Policy Management. The Software Engineer will work with a large team of developers, software engineers and data engineers. The successful candidate will support continuity of our customers’ mission by helping to modernize and implement industry standards while ensuring secure, reliable, and uninterrupted availability of IT systems.

Primary Responsibilities

• Comfort and familiarity in maintaining legacy applications
• Experience in modernization of legacy applications
• Ability to write custom scripts to install and configure code in EC2 instances
• Experience leveraging Amazon Web Services
• Experience creating RESTful API
• Experience with spring boot
• Develop Java and Angular (Typescript) that leverage Elasticsearch
• Comfort and familiarity designing and utilizing custom ETL methodology
• Strong communication, design, and documentation skills
• Strong time and workflow management skills
• Comfort and familiarity in unit testing, peer code review, and automated testing techniques like Selenium (create, edit, maintain, execute)
• Work within the parameters of Agile & Scrum methodologies
• Willingness to mentor and teach junior developers’ community best practices in a constructive fashion
• Ability to methodically think through new and exciting challenges in a collaborative team environment in order to provide technically sound solutions

Required Qualifications

• Active TS/SCI with Polygraph
• Master's degree and 15+ years of relevant experience. Additional experience in lieu of degree
• Must have experience with Java, spring boot, Angular (Typescript), and the Cloud / Amazon Web Services
• Prior experience reading and developing solutions to customer requirements and specifications
• Prior experience developing custom ETL
• Knowledge of Git, Jenkins, selenium, and Rundeck
• Experiencing working in Command Line (RH Linux)

Desired Qualifications

• Understanding and knowledge with Identity and Accessibility development practices
• Experience with automation methodologies like selenium
• Experience with containerization and modular development
• Familiarity with UI/UX Design
• Full Stack Development
• Certification - Amazon Web Services (AWS) 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: August 11, 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: Pay Range $154,050.00 - $278,475.00 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

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 here.

Securing Your Data

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.

About Leidos

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 $17.2 billion for the fiscal year ended January 2, 2026. For more information, visit www.Leidos.com.