Senior Software Developer

Leidos LLC; Chantilly (VA); On-site; USD 108,000 - 195,000; Full time

Benefits offered by this job

Competitive compensation

Health and Wellness programs

Income Protection

Paid Leave

Retirement

Job summary

Leidos is seeking a Senior Software Developer-SME for a 200+ FTE program supporting sponsor’s web-based applications. The role involves working with a large team of developers, DevOPS engineers, security engineers, systems engineers, and data engineers; backend emphasis on web services.

After a one-year onboarding, on-call duty rotation and core hours 9 AM–3 PM, five days a week, 40 hours total. Requires TS/SCI w/ Poly and 8+ years’ experience in backend development.

Qualifications

• Active TS/SCI with Polygraph is required.
• Strong Java programming skills / Java persistence API experience for complex database schemas.
• Java web services experience (JAX/WS).
• Strong Linux (CLI) knowledge.
• Experience in Agile environments and Spring Boot.
• Cloud experience with AWS is preferred, including Java integration with AWS services.
• Additional languages: Python, JavaScript, Bash, XML, JSON, YAML, SQL, PL/SQL.
• Software: GitHub/Git, ELK, Jenkins, Puppet, NAGIOS.

Responsibilities

• Support a 200+ FTE program with backend-focused development.
• Collaborate within a large team of developers, DevOPS, security, and data engineers.
• Develop and maintain web services and backend components.

Skills

Java programming

JAX/WS

Spring Boot

Linux CLI

Agile workflows

AWS

Python

JavaScript

SQL/PLSQL

Git / GitHub

ELK

Jenkins

Puppet

NAGIOS

Education

BS degree

Tools

GitHub / Git

ELK Stack

Jenkins

Puppet

NAGIOS

Job description

Leidos is seeking a Senior Software Developer-SME for a 200+ FTE technical development program supporting the Sponsor’s Web-based applications. The Software Developer will work with a large team of developers, DevOPS engineers, security engineers, systems engineers, and data engineers. The developer will be full stack knowledgeable, but will likely be focused on technical backend work (e.g., web services). The candidate must have 6-10 years of demonstrable developer experience with a backend emphasis. Additionally, after a one-year onboarding period, the candidate will be required to be included in an on-call, one week duty rotation that will require them to address any system issues that occur after normal working hours. Core hours are from 9 AM to 3 PM daily, five days per week, with a forty-hour work week.

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.

Technical Qualifications

• Active TS/SCI with Polygraph is required.
• BS degree and 8+ years experience.
• Additional experience in lieu of degree.
• Strong Java programming skills / Java persistence API experience for complex database schemas.
• Java web services experience (JAX/WS).
• Strong understanding, knowledge of Linux (CLI).
• Experience in working on teams utilizing Agile workflows and processes.
• Working knowledge of the Spring frameworks/Boot.
• Desired Quals Experience with development in Cloud-based environments (e.g., AWS), Java integration with AWS services.
• Additional programming/scripting languages: Python, JavaScript, Bash, XML, JSON, YAML, SQL and PL/SQL.
• Software: GitHub / Git, ELK (Elasticsearch, Logstash, Kibana), Jenkins, Puppet, NAGIOS FIP.

Databases

• Oracle
• Oracle RDS

Frameworks

• Vue.js
• Bootstrap/Vuetify

Benefits

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

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.

Pay

Pay Range $107,900.00 - $195,050.00

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.

For more information, visit www.Leidos.com.

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.