Software Engineer III

Leidos Holding • $87K — $157K *
Information Technology
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's degree in Computer Science, Software Engineering, or related field, or equivalent experience.
  • Minimum four years of software engineering or application development experience.
  • Experience with enterprise or web-based applications across multiple layers.
  • Familiarity with Git-based workflows and automated testing practices.
  • Experience in Agile development environments and iterative planning.
  • Working knowledge of REST APIs and common integration patterns.
  • Strong analytical and troubleshooting skills.

Responsibilities

  • Develop and maintain software components for OJP digital products and APIs.
  • Revise software to enhance functionality and reduce technical debt.
  • Translate user stories and technical requirements into working software.
  • Create and maintain automated tests to improve release quality.
  • Support CI/CD pipelines and deployment processes using approved tools.
  • Develop and maintain APIs and web services in OJP's data-integration environment.
  • Investigate and resolve technical issues and help desk tickets.

Benefits

  • Collaborative work environment with cross-functional teams.
  • Opportunities for professional development and training.
  • Access to modern tools and technologies.
  • Engagement in meaningful projects supporting federal digital services.
Full Job Description
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 OJP's 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 OJP's 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 OJP's 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

  • Bachelor's 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.


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 $87,100.00 - $157,450.00

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.

About Leidos Holding

Leidos Holding Careers

Joining Leidos Holding presents an unparalleled opportunity to advance one's career with a leader in innovation and technology. The company offers a plethora of job opportunities aimed at fostering professional growth and development in a diverse and inclusive environment.

Explore Career Opportunities

Leidos Holding is actively seeking skilled professionals who are passionate about leveraging their expertise to drive innovation and leadership in their fields. With a variety of open positions, Leidos Holding provides a platform for individuals to challenge themselves in a dynamic work environment.

Innovation and Professional Growth

At Leidos Holding, innovation is at the core of everything they do. Employees are encouraged to think creatively and push boundaries. The company supports this drive for innovation through comprehensive professional development and diversity training programs that are designed to enhance skills and foster leadership.

Commitment to Diversity and Inclusion

Leidos Holding is committed to creating a workplace where diversity is not only recognized but celebrated. With a culture that values and promotes diversity, Leidos Holding ensures that all team members have the opportunity to contribute, learn, and grow.

Internship Programs

For those starting their career, Leidos Holding offers internship programs that provide a robust foundation in the industry. Internships are a great way to develop essential skills, gain valuable work experience, and build professional networks.

Benefits and Culture

Employees at Leidos Holding enjoy a range of benefits designed to support their professional and personal lives. The company culture is built on a foundation of respect and integrity, providing a supportive and collaborative environment where every team member is valued.

Join the Team

Leidos Holding is hiring! Explore job opportunities that match your skills and interests. Leidos Holding looks for driven, curious, and innovative individuals to join their team. Positions are available across various disciplines and experience levels.

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Prepare for Your Interview

To prepare for an interview at Leidos Holding, candidates should familiarize themselves with the company's missions and values, update their resumes, and be ready to discuss how their background and skills align with the position they are applying for.

Networking and Career Advancement

Leidos Holding encourages its employees to engage in networking within the company to discover new opportunities for career advancement. The leadership team at Leidos Holding is dedicated to supporting employees in their career paths with ample opportunities for networking and growth.

Explore Leidos Holding Jobs and Careers

Discover the exciting career opportunities at Leidos Holding today. With a commitment to employee growth, innovation, and diversity, Leidos Holding is the perfect place to advance your career. Check out the latest job listings and find your perfect fit at Leidos Holding.

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