Senior Software Engineer

Shape the Future of National Security

Are you passionate about solving complex technical challenges that directly support the nation’s most critical intelligence missions? At Leidos, you’ll have the opportunity to work alongside some of the industry’s brightest engineers, developing innovative software solutions that make a real-world impact. If you thrive in a fast-paced, collaborative environment where your expertise drives mission success, we’d love to hear from you.

Position Overview

Leidos is seeking an experienced Senior Software Engineer to join the Chinook Program supporting a premier Intelligence Community customer. In this role, you design, develop, integrate, and maintain mission-critical software applications that enable our customer to solve complex operational challenges. You’ll work with cross-functional teams to deliver secure, scalable, and high-performing solutions while leveraging modern software engineering practices and technologies.

This is an opportunity to contribute to high-impact projects in an agile environment where innovation, technical excellence, and continuous learning are valued.

Clearance Level Required:

Active Top Secret/SCI with the ability to successfully pass a Polygraph examination.

Primary Responsibilities:

• Resolve various tasks as prioritized by the team product owner.
• Engage in the complete software development lifecycle, operating within well-defined parameters.
• Take ownership of delivering enhancements within a system or application.
• Break down sizable tasks into manageable units for execution and provide LOE estimations.
• Collaborate with fellow software engineers to create and document optimal technical designs.
• Ensure team compliance with Agile processes and best practices.
• Build software solutions where the solution is not clearly defined but always prioritizing customer needs.
• Resolve obstacles for the development team, working collaboratively with the Product Owner, technical leadership, and other engineers.
• Ensure all Scrum events take place and are positive, productive, and kept within the timebox.

Basic Qualifications:

• US citizenship is required per contract.
• Bachelor's degree in Computer Science, Software Engineering, or related field and 8-12 years of prior relevant experience or Master’s with 6-10 years of prior relevant experience.
• Experience working as a Scrum Master for a software development or similar technical team.
• Strong proficiency with the following technologies:
  • Web: Django, JQuery, Ajax, and REST APIs
  • Object-oriented Programming: Python, Java, and JavaScript
  • Relational Database: SQL/Postgres
  • Operating System: Windows, Linux
  • Version Control System: Git, GitLab
• Experience incorporating GEOINT domain understanding when troubleshooting, optimizing, and validating system behavior and data outputs across environments.
• Deep understanding of modern software design patterns and coding standards.
• Experience architecting, developing, and delivering complex software systems into production.
• Working knowledge of Agile development and continuous integration/continuous delivery methodologies and tools.
• Strong, self-motivated desire to learn new programming languages, tools, frameworks, and techniques.

Preferred Qualifications:

• Experience with scripting languages such as REACT.
• Software Architectures: Client-Server, Model-View-Controller.
• Cloud Exposure:
  • Multi-cloud architectures: AWS, IBM, Google, Azure, and Oracle.
  • Specific AWS Services: S3, SQS, SNS, EC2, CloudFormation and RDS.
  • Certifications such as AWS DevOps Engineer or similar.

#Chinook

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:

July 10, 2026

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.