Software Engineer, Subject Matter Expert

About Leidos

Leidos has an exciting opportunity for a Software Engineer (SME) in our Intel Security Sector's Analysis Solutions Business Area. Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management.

Benefits include

• Paid Time Off
• 11 paid Holidays
• 401K with a 6% company match and immediate vesting
• Flexible Schedules
• Discounted Stock Purchase Plans
• Technical Upskilling, Education and Training Support
• Parental Paid Leave
• And much more

Join us and make a difference in National Security!

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Job Summary

As a Software Engineer on this program, you will have the opportunity to build strong systems, software, and cloud environments while providing operations and maintenance for critical systems. This role will provide technical expertise in the design, development, implementation and testing of customer tools and applications. Based in a DevOps framework, this role participates in and/or directs major deliverables of projects through all aspects of the software development lifecycle including scope and work estimation, architecture and design, coding and unit testing.

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Primary Responsibilities

• Participates in and/or directs software programming initiatives using Java, JavaScript, Python, SpringBoot, and Hibernate.
• Develops and directs software system validation and testing methods using JUnit and Katalon and uses integrated custom‑developed software solutions to leverage automated deployment technologies.
• Develop, prototype and deploy solutions within Commercial Cloud Solutions leveraging infrastructure platform services.
• Coordinate closely with team members, Product Owners and Scrum Masters to ensure User Story alignment and implementation to customer use cases.
• Support the Agile software development lifecycle following SAFe practices, using industry‑leading DevOps tools like GitHub, Jenkins, Unix bash scripting and leveraging tools such as JIRA and Confluence to track activities.
• Analyze (through proof of concept, performance, and end‑to‑end testing) and effectively coordinate infrastructure needs driven by developed software to meet customer mission needs.
• Apply and identify best practices and standard operating procedures, creating innovative solutions to meet the technical needs of customers.

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Basic Qualifications

• Extensive use and experience in common Agile practices, service‑orientated environments, and development practices.
• Extensive experience with Java, Spring, C2S and the software development lifecycle, delivering within DevOps toolsets/practices.
• Direct experience utilizing software testing performance tools, such as JUnit/Katalon, and scripting languages, such as Python and Bash, while working in an Agile development environment.
• Extensive experience with development in Commercial Cloud Platforms (e.g., AWS, Google Cloud, Azure) and leveraging cloud data services (e.g., S3, RDS, EFS).
• Extensive experience using version control systems and issue/problem tracking systems.
• Master’s degree with 15 + years of prior relevant experience or Doctorate with 13 + years of relevant experience. Additional years of experience may be substituted in lieu of a degree.
• Active TS/SCI with polygraph security clearance is required.

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Preferred Qualifications

• Experience with structured analysis and design methodologies.
• Understanding of the customer's system development policies.

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Additional Information

• Location: CABARESTON
• Original Posting: January 22, 2026
• Pay Range: $154,050.00 – $278,475.00 (general guideline; actual compensation depends on responsibilities, education, experience, internal equity, market data, etc.)
• Application Window: Leidos anticipates the requisition will remain open for at least 3 days, with an anticipated close date no earlier than 3 days after the original posting date.

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Closing Statement

At Leidos, the opportunities are boundless. We challenge our staff with interesting assignments that allow them to thrive professionally and personally. For us, helping you grow your career is good business. We look forward to learning more about you – apply today.

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.