Expert Software Engineer

Leidos

$131K — $237K *
Information Technology
11 - 15 years of experience
Job Overview by Ladders

Qualifications

  • Active TS/SCI with Polygraph clearance
  • BS degree in relevant field with 12+ years of experience, or equivalent experience in lieu of degree
  • Proficiency in Java and Springboot for backend development
  • Experience with Amazon Web Services focusing on low-latency, distributed systems
  • Skilled in creating RESTful APIs and analyzing complex software systems
  • Familiarity with Git, Jenkins, and Rundeck for CI/CD processes
  • Proficient in writing scripts for EC2 instance configurations

Responsibilities

  • Collaborate with a large team of developers and cloud engineers to enhance legacy applications
  • Build new applications based on evolving mission needs
  • Translate business requirements into technical solutions with product owners
  • Decompose complex systems to create scalable and high-performance designs
  • Participate in Agile Scrum practices for project planning and deliverable management
  • Engage in team rotations for on-call operational support every three months
  • Maintain clear communication and team collaboration throughout development projects

Benefits

  • Involvement in innovative and fast-paced technical projects
  • Opportunity to work within a large collaborative team environment
  • Engagement with cutting-edge technologies in the cloud
  • Emphasis on continuous skill development and technical mastery
  • Participation in high-stakes mission-critical projects
Full Job Description
Leidos is seeking a Software Developer for a 200+ FTE technical development program supporting the Sponsor's Entitlement Programs as well as IdAM /ICAM, Authentication, Authorization, Entitlements and Digital Policy Management. The Software Developer will work with a large team of developers and cloud engineers.

Primary Responsibilities:

The Developer will be part of a team of developers and cloud engineers that create new features for legacy applications as sponsor's mission continues to expand and evolve. Our team also builds new applications as new mission needs arise. The Developer works closely with product owners, business analysts, and other teams to translate business requirements into technical solutions. The Developer will analyze and decompose complex software systems and create designs for scalability, testability, and performance. Our work rhythm revolves around the Scrum agile framework to deliver incremental enhancements on a 3-week cycle. Developers actively participate in planning deliverables and grooming the Jira backlog. We rely on team collaboration to continually fine tune performance and ensure clear communication. Developers also participate in a team rotation of O&M responsibilities. They are required to be on-call for after-hours support approximately one week every three months.

Required Qualifications
  • Active TS/SCI with Polygraph
  • BS degree and 12+ years of relevant experience. Additional experience in lieu of degree.
  • Experience creating applications with Java, Springboot, and Amazon Web Services for backend components, focusing on low-latency, high-throughput distributed systems
  • Experience working closely with product owners, business analysts, and other teams to translate business requirements into technical solutions
  • Experience analyzing and decomposing complex software systems and creating designs for scalability, testability, and performance
  • Experience writing custom scripts to install and configure code in EC2 instances
  • Experience using Git, Jenkins, and Rundeck
  • Experience using CloudFormation scripts
  • Experience creating RESTful API
  • Experience working on a team that used the Scrum agile framework
  • Experience manipulating data using XML, JSON and YAML formats


Desired Qualifications
  • Certification - Amazon Web Services (AWS)
  • Experience delivering containerized applications with services similar to Docker and Kubernetes
  • Experience creating applications/services using Python
  • Experience with Elasticsearch and/or Kibana
  • Experience creating applications that rely on tokenization
  • Experience writing custom scripts to install and configure code in EC2 instances
  • Understanding of Identity Access Management (IAM) and Zero Trust concepts
  • Understanding of Artificial Intelligence (AI) concepts such as prompt engineering and large language models (LLM)
  • Experience building microservices
  • Experience with automated testing frameworks such as Katalon Studio or Selenium
  • Experience building solutions designed to continue operation even if one AWS region is unavailable


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:
May 13, 2026

Pay Range:
Pay Range $131,300.00 - $237,350.00

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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