Senior Software Developer

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.

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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 View email address on click.appcast.io.

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.