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Principal Full Stack Developer

Leidos

$126,100 - $227,950
Jul 4, 2025
Reston, VA, USA
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Leidos is seeking a Principal Full Stack Developer to build strong systems, software, and cloud environments and provide operations and maintenance for critical systems within the National Security Sector's Cyber & Analytics Business Area. The role involves providing technical expertise in the design, development, implementation, and testing of customer tools and applications within a DevOps framework.

Requirements

  • In-depth experience with common Agile practices, service-orientated environments, and development practices
  • In-depth experience with Java, Angular, Spring and C2S and the software development lifecycle, with experience delivering within DevOps toolsets/practices
  • Direct experience utilizing software testing performance tools, such as Junit or Katalon and scripting languages, such as Python, and Bash while working in an Agile development environment
  • In-depth experience developing in Commercial Cloud Platforms (ex, AWS, Google Cloud, Azure) and leveraging cloud data services (ex: S3, RDS, EFS)
  • In-depth experience using version control and issue/problem tracking systems
  • Experience with structured analysis and design methodologies
  • Understanding of the customer's system development policies

Responsibilities

  • Participate in software programming initiatives to support innovation and enhancement, using Java, JavaScript, Python, SpringBoot, Hibernate
  • Developing and directing software system validation and testing methods using Junit and Katalon
  • Develop and integrate custom developed software solutions to leverage automated deployment technologies leveraging an Atlassian tool suite like JIRA and Confluence to track activities
  • Develop, prototype and deploy solutions within Commercial Cloud Solutions leveraging Infrastructure platform services creating innovative solutions to meet the technical needs of customers.
  • Analyze (though proof of concept, performance, and end-to-end testing) and effectively coordinate Infrastructure needs driven by developed software to meet customer mission needs
  • Document and Perform systems software development, including deployment of build artifacts across different environments leveraging GitFlow constructs and using industry leading DevOps tools like GitHub, Jenkins, and Unix bash scripting

Other

  • Bachelor’s degree with 12 or more years of prior relevant experience or Master’s with 10 or more years of relevant experience. Additional years of experience may be substituted in lieu of a degree.
  • To be considered must have an active TS/SCI with polygraph security clearance
  • Experience working on the customer's systems