Senior Software Developer

Leidos

Senior Software Developer supporting the delivery and enhancement of enterprise data and analytics products across DoD organizations. Collaborating with government partners to translate requirements into scalable solutions.

Posted 4/24/2026full-timeAlexandria • Maryland, Virginia • 🇺🇸 United StatesSenior💰 $107,900 - $195,050 per yearWebsite

Tech Stack

Tools & technologies

GoJavaJavaScriptJenkinsMicroservicesPythonTypeScript

About the role

Key responsibilities & impact

Develop, test, and maintain application-level software including backend services, APIs, and user-facing components.
Establish and maintain development, test, integration, staging, and production environments for the System.
Implement features and enhancements using modern programming languages (e.g., Java, Python, JavaScript, or similar).
Build and integrate APIs and microservices to support platform and application functionality.
Collaborate with cross-functional teams to develop features, fix defects, and improve system performance.
Contribute to development of front-end and back-end components for enterprise applications.
Integrate software into DevSecOps pipelines for automated build, testing, and deployment.
Prepare, maintain, and execute a System Test Plan (STP) based on CI/CD and DevSecOps principles.
Prepare, maintain, and execute a Software Engineering Plan (SWP) for managing all aspects of the software lifecycle.
Implement and maintain source code, Infrastructure-as-Code (IaC), and Configuration-as-Code (CaC).
Conduct configuration management operations to control, identify, record, and report IT components and relationships.
Perform debugging, troubleshooting, and resolution of application defects and performance issues.
Ensure adherence to secure coding practices and support remediation of vulnerabilities.
Harden and secure virtual machines (VM) and containers in accordance with DoD standards.
Plan, design, and implement software testing tools, processes, and procedures.
Support software testing including unit, integration, and user acceptance testing.
Deliver and maintain all software artifacts on Government-owned software repositories.
Translate systems engineering and reference architecture designs into software designs.
Participate in code reviews and contribute to development standards and best practices.
Participate in SAFe ceremonies including PI Planning, backlog refinement, sprint reviews, and retrospectives.

Requirements

What you’ll need

Active Top Secret (TS) clearance with SCI eligibility.
Bachelor’s degree in Computer Science, Software Engineering, Engineering, or related technical discipline and 8–12 years of relevant experience OR Master’s degree in a related field and 6–10 years of relevant experience.
Minimum of 6 years of experience in software development and engineering.
Experience developing enterprise software solutions using modern programming languages (e.g., Java, Python, Go, C++, or similar).
Proficiency in programming languages such as Java, Python, or C++.
Experience building and integrating RESTful APIs and microservices architectures.
Experience integrating software into CI/CD pipelines and DevSecOps environments (e.g., GitLab, Jenkins, or similar).
Experience with Infrastructure-as-Code (IaC) and Configuration-as-Code (CaC).
Experience with DevSecOps practices and tools.
Experience operating within SAFe or Agile frameworks supporting enterprise systems.
Excellent communication and teamwork abilities.
Strong problem-solving and analytical skills.

Benefits

Comp & perks

Health and Wellness programs
Income Protection
Paid Leave
Retirement

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

JavaPythonJavaScriptGoC++RESTful APIsmicroservicesInfrastructure-as-Code (IaC)Configuration-as-Code (CaC)DevSecOps

Soft Skills

communicationteamworkproblem-solvinganalytical skills

Certifications

Top Secret (TS) clearance with SCI eligibility