Mid-Level Software Engineer

Leidos is seeking a Mid-Level Full Stack Software Engineer for the Chinook Program, supporting an Intelligence Community customer in an Agile DevSecOps environment.

Responsibilities

• Design, develop, test, and deploy software solutions supporting the customer’s GEOINT mission
• Participate in Agile development sprints, including daily stand-ups, sprint planning, and retrospectives
• Build and maintain secure, containerized applications using Docker, Kubernetes, and AWS
• Develop RESTful APIs and user-facing interfaces using modern front-end and back-end tooling (e.g., React, Node.js, Flask, Spring Boot)
• Collaborate with mission users and product managers to refine requirements and improve user experience
• Support DevSecOps pipelines and ensure code meets security and accreditation standards
• Perform code reviews and mentor junior developers as needed
• Resolve tasks prioritized by the team product owner

Requirements

• US citizenship required per contract
• Education: Bachelor’s degree in Computer Science, Software Engineering, or related field
• Experience: 4-8 years of prior relevant experience (or Master’s with 2-6 years prior relevant experience)
• Active Top Secret/SCI with ability to successfully pass a Polygraph examination
• Proficiency with Web: HTML, CSS, JSON, Ajax, REST APIs
• Proficiency with Object-oriented programming: Python, Java, or JavaScript
• Proficiency with Advanced programming: Go
• Proficiency with Front-end and back-end frameworks: React, Angular, Vue.js, jQuery, Spring Boot, Django, Node.js, Flask, or Svelte
• Proficiency with Cloud development: AWS, Azure, or similar cloud platforms
• Proficiency with Relational databases: MySQL, PostgreSQL, or SQL Server
• Proficiency with Operating systems: Windows, Linux
• Proficiency with Version control: Git
• Deep understanding of modern software design patterns and coding standards
• Experience architecting, developing, and delivering complex software systems into production
• Experience with CI/CD tools (GitLab CI, Jenkins) and agile collaboration tools (JIRA, Confluence)
• Familiarity with cloud environments such as AWS (C2S or GovCloud) and containerization technologies (Docker, Kubernetes)
• Understanding of secure coding practices and government system accreditation processes (e.g., RMF, STIGs)
• Strong, self-motivated desire to learn new programming languages, tools, frameworks, and techniques

Technologies

• Docker, Kubernetes, AWS
• REST APIs, React, Node.js, Flask, Spring Boot
• HTML, CSS, JSON, Ajax
• Python, Java, JavaScript, Go
• Angular, Vue.js, jQuery, Django, Svelte
• Azure, MySQL, PostgreSQL, SQL Server
• Windows, Linux
• Git, GitLab CI, Jenkins
• JIRA, Confluence
• RMF, STIGs

Benefits

• Competitive compensation
• Health and Wellness programs
• Income Protection
• Paid Leave and Retirement

Clearance Level Required

• Active Top Secret/SCI with the ability to successfully pass a Polygraph examination

Preferred Qualifications

• UI/UX experience for frontend web development
• NoSQL database experience: OpenSearch/Elasticsearch
• Cloud exposure across multi-cloud architectures: AWS, IBM, Google, Azure, Oracle
• Specific AWS services: S3, SQS, SNS, EC2, CloudFormation, RDS
• Experience working on a customer contract or in the Intelligence Community (IC)
• Familiarity with geospatial tools and standards: GeoServer, PostGIS, OGC APIs, ESRI ArcGIS
• Exposure to Infrastructure-as-Code: Terraform, Ansible
• Certifications such as AWS Certified Developer, Security+, SAFe Practitioner or similar

Location

• Tucson, AZ (onsite)

Work Locations (Position may be performed)

• Gaithersburg, MD (program’s primary work location)
• Alexandria, VA
• Chantilly, VA
• Englewood, CO
• St. Louis, MO
• Tucson, AZ

Compensation

• USD 87,100 - 157,450 per year

Original posting date: July 10, 2026.