Expert Software Developer

Leidos

$154K — $278K *
Information Technology
11 - 15 years of experience
Job Overview by Ladders

Qualifications

  • Active TS/SCI clearance with Polygraph.
  • Master's degree with 15+ years of relevant software development experience.
  • Proficient in object-oriented programming languages like Java or .NET.
  • Experience developing and maintaining web applications and backend services.
  • Skilled in integrating applications with external systems via RESTful APIs.
  • Expertise in writing and optimizing SQL queries for relational databases.
  • Familiarity with source control systems such as Git.

Responsibilities

  • Maintain and enhance a critical web application for entitlement and access management.
  • Design and implement workflow automation to meet mission needs.
  • Develop new features across the application stack, both backend and frontend.
  • Implement integrations with external systems via RESTful APIs.
  • Support modernization of legacy application components for future upgrades.
  • Troubleshoot application issues using log analysis and debugging techniques.
  • Deploy applications in Amazon Web Services (AWS) and manage operational processes.
  • Collaborate with engineers and stakeholders to translate requirements into technical solutions.
  • Participate in Agile development activities including planning and testing.

Benefits

  • Collaborative work environment with a large team of skilled engineers.
  • Opportunity to work on mission-critical applications.
  • Engagement in Agile development practices.
  • Focus on modernization and cutting-edge technologies like AWS.
  • Involvement in enhancing security and reliability of IT systems.
Full Job Description
The Software Developer will work with a large team of software engineers and data engineers. The successful candidate will support continuity of our customer's mission by helping to modernize and implement industry standards while ensuring secure, reliable, and uninterrupted availability of IT systems.

Primary Responsibilities
  • Maintain, enhance, and extend a mission-critical web application that manages entitlement and access management workflows for the Sponsor.
  • Design, implement, and modify workflow automation and processing logic to support evolving mission requirements.
  • Develop new features and improvements across the full application stack, including both backend services and frontend user interface enhancements.
  • Implement integrations with external enterprise systems using RESTful APIs and other service interfaces.
  • Support modernization of legacy components as part of the development of the next-generation version of the application.
  • Troubleshoot and resolve application issues through log analysis, debugging, and root-cause investigation.
  • Develop and maintain database queries and data interactions using SQL.
  • Deploy and operate applications within Amazon Web Services (AWS) environments, including supporting standard deployment and operational processes.
  • Collaborate with system engineers, developers, and mission stakeholders to translate customer requirements into technical solutions.
  • Participate in an Agile development environment, contributing to sprint planning, development, testing, and deployment activities.


Required Quals

  • Active TS/SCI clearance with Polygraph
  • Master's degree and 15+ years of relevant software development experience
  • Strong experience with object-oriented programming using languages such as Java, .NET, or similar
  • Experience developing and maintaining web applications and backend services
  • Experience integrating applications with external systems via RESTful APIs
  • Experience writing and optimizing SQL queries and interacting with relational databases
  • Experience working with source control systems such as Git
  • Experience interpreting and implementing customer requirements in enterprise software systems


Desired Quals

  • Experience with IBM Business Automation Workflow (BAW), IBM BPM, or similar BPMN workflow platforms
  • Experience developing systems that support identity, entitlement, or access management workflows
  • Experience supporting legacy system modernization efforts


Original Posting:
April 2, 2026

Pay Range:
Pay Range $154,050.00 - $278,475.00

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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