Software Engineer III

Leidos is seeking a Software Engineer III to support the U.S. Department of Justice (DOJ) Office of Justice Programs (OJP) Office of the Chief Information Officer (OCIO) in advancing secure reliable accessible and user-centered digital products and services.

The Software Engineer III will contribute to the design development enhancement integration testing deployment and sustainment of applications application programming interfaces (APIs) automation and Development Security and Operations (DevSecOps) capabilities supporting OJP product teams. The successful candidate will revise existing software to improve function address defects and technical debt strengthen automated testing and support implementation of solutions within OJPs current and future enterprise architecture using modern Agile and DevSecOps practices.

Primary Responsibilities

• Develop modify test debug and maintain software components that support OJP digital products integrations APIs automation and internal platforms.
• Revise existing software to improve functionality maintainability usability performance accessibility security and reliability while reducing defects and technical debt.
• Translate user stories acceptance criteria customer needs and technical requirements into working software using Agile product-team practices.
• Create and maintain automated unit integration regression API and data tests to improve release quality and reduce technical debt.
• Support continuous integration and continuous delivery (CI/CD) pipelines source-code repositories build automation security scanning artifact or container workflows and repeatable deployment processes using OJP-approved tools.
• Develop publish consume and maintain APIs and web services through OJPs data-integration environment including WSO2 API Manager using applicable standards and protocols such as REST JSON XML SOAP and related technologies.
• Support API integrations with OJPs Identity and Access Management System (DIAMD) including integrations involving Okta and SailPoint and protocols such as SCIM OAuth 2.0 and SAML in coordination with the DIAMD team.
• Support cloud-hosted and containerized application environments and coordinate deployment security patching and troubleshooting activities with OJP networking and security teams.
• Investigate and resolve assigned help desk tickets defects and technical issues involving Data Integration and DevSecOps products.
• Participate in code reviews defect triage root-cause analysis production support and corrective-action activities.
• Create and maintain technical documentation configuration information user stories standard operating procedures and implementation notes.
• Collaborate with software engineers architects DevOps engineers business analysts product managers and Government stakeholders to deliver secure compliant accessible and maintainable capabilities.

Basic Qualifications

• Bachelors degree in Computer Science Software Engineering Information Systems Engineering or a related technical discipline or equivalent relevant experience consistent with applicable labor-category requirements.
• Minimum four (4) years of progressively responsible software engineering or application development experience.
• Experience developing enhancing debugging and maintaining enterprise or web-based applications across one or more application layers.
• Experience with modern source control and software development practices including Git-based workflows code reviews and automated testing.
• Experience working in Agile development environments and participating in iterative planning backlog refinement sprint execution or Kanban delivery.
• Working knowledge of REST APIs JavaScript Object Notation (JSON) authentication and authorization concepts and common integration patterns.
• Working knowledge of continuous integration and continuous delivery (CI/CD) cloud platforms containers automation or Infrastructure as Code.
• Strong analytical troubleshooting written communication and team collaboration skills.
• Must satisfy the citizenship residency background-investigation and Public Trust requirements applicable to the task order.

Preferred Qualifications

• Experience supporting DOJ OJP or another Federal digital-service environment.
• Experience with one or more relevant tools or platforms such as Azure DevOps Jenkins Ansible Docker AWS GovCloud WSO2 API Manager Git-based repositories or Linux.
• Familiarity with API management and identity-integration technologies including SCIM OAuth 2.0 SAML Okta SailPoint or comparable technologies.
• Familiarity with security scanning application monitoring logging observability and coordinated vulnerability-remediation workflows.
• Familiarity with Section 508 accessibility secure software development Infrastructure as Code and automated testing practices.
• Relevant training or certifications in API management Azure DevOps GitHub cloud DevOps software engineering or related technologies.

If youre looking for comfort keep scrolling. At Leidos we outthink outbuild and outpace the status quo because the mission demands it. Were not hiring followers. Were recruiting the ones who disrupt provoke and refuse to fail. Step 10 is ancient history. Were already at step 30 and moving faster than anyone else dares.

Original Posting:

September 30 2026

For U.S. Positions: While subject to change based on business needs Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range:

Pay Range $87100.00 - $157450.00

The Leidos pay range for this job level is a general guideline onlyand 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.

Required Experience:

IC