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Software Engineer IV

Leidos


Job Location:

Reston, VA - USA

Yearly Salary: USD 87100 - 157450
Posted: 2 October 2026 (10 hours ago)
Application Deadline: 30 December 2026
Vacancies: 1 Vacancy

Job Summary

Leidos is seeking a Software Engineer IV to support the U.S. Department of Justice (DOJ) Office of Justice Programs (OJP) Office of the Chief Information Officer (OCIO) in modernizing integrating and sustaining mission-supporting digital products and services.

The Software Engineer IV will serve as an experienced hands-on engineer responsible for designing and implementing complex application enhancements application programming interfaces (APIs) integrations automation and cloud-based capabilities. The successful candidate will revise software for improved function lead technical problem solving within assigned components strengthen Development Security and Operations (DevSecOps) automated testing and continuous integration and continuous delivery (CI/CD) practices and help standardize secure and maintainable engineering approaches across OJP product teams.

Primary Responsibilities


  • Design develop enhance integrate test deploy and sustain complex enterprise application components APIs automation and supporting services.
  • Revise existing software to improve functionality reliability performance security accessibility interoperability and maintainability while reducing defects and technical debt.
  • Lead technical analysis of enhancement requests defects user stories integration requirements and recurring technical issues and recommend practical implementation approaches.
  • Design implement publish and maintain APIs and data integrations using OJP-approved technologies including WSO2 API Manager and applicable web-service standards and protocols.
  • Configure and support WSO2 API Manager capabilities for API creation publication lifecycle management governance testing monitoring and integration coordinating platform-administration patching and infrastructure activities with applicable OJP service-delivery networking and security teams.
  • Design and 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 support team.
  • Develop improve and troubleshoot continuous integration and continuous delivery (CI/CD) pipelines automated testing source-code management deployment automation security-scanning integration and configuration-management practices.
  • Support current-state product configuration and future-state product implementation including development of user stories deployment activities technical documentation and coordination required to support Authority to Operate activities.
  • Support cloud-hosted and containerized applications including monitoring logging deployment troubleshooting configuration and performance analysis.
  • Coordinate with OJP networking and security teams during routine patching security scans vulnerability remediation and infrastructure-related activities.
  • Investigate and resolve assigned help desk tickets defects and technical issues involving Data Integration and DevSecOps products.
  • Perform code and technical reviews establish component-level engineering and testing practices and mentor less-experienced engineers in secure maintainable and automated development practices.
  • Partner with architecture DevOps data integration cybersecurity and business analysis personnel to ensure solutions align with OJP architecture technical standards security requirements and customer needs.
  • Develop and maintain interface documentation runbooks configuration records implementation procedures and other technical artifacts needed to sustain supported products and services.
  • Identify opportunities for automation refactoring modernization technology consolidation and improved engineering practices that reduce recurring issues and lifecycle cost.

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 six (6) years of progressively responsible software engineering experience developing enhancing integrating and maintaining enterprise applications.
  • Demonstrated experience designing and implementing complex application enhancements APIs system integrations and automated tests.
  • Experience with Agile software development Development Security and Operations (DevSecOps) continuous integration and continuous delivery (CI/CD) configuration management and secure software development practices.
  • Experience with Git-based source control and one or more CI/CD build deployment or automation platforms.
  • Experience developing or supporting RESTful APIs web services data integrations and common authentication and authorization mechanisms.
  • Experience with cloud-hosted or containerized applications and automated deployment practices.
  • Experience troubleshooting complex application integration deployment or production issues and performing root-cause analysis.
  • Strong understanding of software design principles automated testing maintainability reliability and secure engineering practices.
  • Strong written and verbal communication skills and demonstrated ability to collaborate with Government stakeholders and cross-functional technical teams.
  • Must satisfy the citizenship residency background-investigation and Public Trust requirements applicable to the task order.

Preferred Qualifications


  • Experience supporting DOJ OJP or another large Federal digital-service or enterprise IT environment.
  • Experience with one or more relevant tools or platforms such as Azure DevOps Jenkins Ansible Tower Git or GitHub Docker AWS GovCloud WSO2 API Manager Linux or comparable technologies.
  • Experience with API management API lifecycle management web-service integration or identity and access integration using technologies or protocols such as Okta SailPoint SCIM OAuth 2.0 SAML SSL/TLS SSH or Kerberos.
  • Experience with Infrastructure as Code automated security testing CI/CD security scanning configuration management monitoring logging observability or automated product and operational reporting.
  • Familiarity with security and monitoring technologies such as Tenable Acunetix Guardium Splunk StatusCake or comparable platforms.
  • 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


About Company

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Leidos is an innovation company rapidly addressing the world's most vexing challenges in national security and health. Our 47,000 employees collaborate to create smarter technology solutions for customers in these critical markets.

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