Senior Backend Software Engineer – TS/SCI On-Call, AWS

Quest Oracle Community; Chantilly (VA); Hybrid; USD 108,000 - 195,000; Full time

Job summary

Leidos is seeking a Senior Software Developer-SME for a large, 200+ FTE program supporting sponsor web-based applications. You will join a team of developers, DevOPS, security engineers, and data engineers, focusing on backend work with full-stack awareness.

Expect 6–10 years of development experience with backend emphasis, an onboarding period, and a weekly after-hours on-call rotation. Core hours are 9 AM–3 PM, five days a week, for a 40-hour week.

Qualifications

• Active TS/SCI with Polygraph is required.
• BS degree and 8+ years experience. Additional experience in lieu of degree.
• Strong Java programming skills and Java persistence API for complex database schemas.
• Java web services experience (JAX/WS).
• Strong Linux (CLI) knowledge.
• Experience with Agile workflows and processes.
• Working knowledge of the Spring frameworks/Boot.

Skills

Java

Java persistence API

Java web services

Linux CLI

Agile

Spring Boot

Backend development

DevOps collaboration

Cloud basics (AWS)

REST APIs

Git

Jenkins

ELK

Puppet

Nagios

Education

BS degree

Tools

Git

Jenkins

ELK

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.

Required Quals

• 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
• Databases: Oracle, Oracle RDS
• Frameworks: Vue.js, Bootstrap/Vuetify
• 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

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 $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.

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 [e-mail].

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.