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.Required QualsActive TS/SCI with Polygraph is required. BS degree and 8+ years experience. Additional experience in lieu of degreeStrong Java programming skills / Java persistence API experience for complex database schemasJava web services experience (JAX/WS)Strong understanding, knowledge of Linux (CLI)Experience in working on teams utilizing Agile workflows and processesWorking knowledge of the Spring frameworks/BootDesired QualsExperience with development in Cloud-based environments (e.g., AWS), Java integration with AWS servicesDatabases: Oracle, Oracle RDSFrameworks: Vue.js, Bootstrap/VuetifyAdditional programming/scripting languages:Python, JavaScript, Bash, XML, JSON, YAML, SQL and PL/SQLSoftware:GitHub / Git, ELK (Elasticsearch, Logstash, Kibana), Jenkins, Puppet, NAGIOSFIPIf 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, 2026For 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 - $195,050.00The 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.SummaryLocation: Chantilly, VAType: Full time