Sr. Software Engineer

Leidos Holdings • Aurora, CO

85d • $104,650 - $189,175

About The Position

Leidos National Security Sector combines technology-enabled services and mission software capabilities in the areas of cyber, logistics, security operations, and decision analytics to support our defense and intel customers' mission to defend against evolving threats around the world. Our team's focus is to ensure our customers have the right tools, technologies, and tactics to keep pace with an ever-evolving security landscape and succeed in their pursuit to protect people and critical assets. The Intelligence Production Solutions Division (IPSD), part of the Decision Advantage Solutions Business Area, is currently seeking a highly motivated Sr. Software Engineer for the Chinook Program. The Chinook Program delivers mission-driven software capabilities across the GEOINT enterprise through secure, agile, and cloud-native development. As a senior engineer, you will lead technical development efforts, drive DevSecOps maturity, and support our customers' evolving mission needs with scalable, resilient solutions. As a leader you will design and implement modern, containerized applications in classified cloud environments, guiding junior engineers, and working directly with mission stakeholders to ensure successful delivery.

Requirements

• US citizenship is required per contract.
• Bachelor's degree in Computer Science, Software Engineering, or related field and 8-12 years of prior relevant experience or Master's with 6-10 years of prior relevant experience.
• Strong proficiency with web technologies: HTML, CSS, JSON, Ajax, and REST APIs.
• Object-oriented Programming: Python, Java, or JavaScript.
• Advanced Programming: Go.
• Front-end and Back-end Frameworks: React, Angular, Vue.js, jQuery, Spring Boot, Django, Node.js, Flask, or Svelte.
• Cloud Development: AWS, Azure, or similar cloud platforms.
• Relational Database: MySQL, PostgreSQL, or SQL Server.
• Operating System: Windows, Linux.
• Version Control System: Git.
• Deep understanding of modern software design patterns and coding standards.
• Experience architecting, developing, and delivering complex software systems into production.
• Hands-on experience developing containerized applications with Docker and Kubernetes.
• Experience deploying to and developing in classified cloud environments (e.g., C2S, AWS GovCloud).
• Familiarity with DevSecOps tools and practices (e.g., GitLab CI/CD, Jenkins, SonarQube, Nexus, Terraform).
• Solid understanding of Agile methodologies and secure software lifecycle principles.
• Strong, self-motivated desire to learn new programming languages, tools, frameworks, and techniques.

Nice To Haves

• Frontend Web Development: UI/UX.
• NoSQL Database: OpenSearch/Elasticsearch.
• Cloud Exposure: Multi-cloud architectures: AWS, IBM, Google, Azure, and Oracle.
• Specific AWS Services: S3, SQS, SNS, EC2, CloudFormation and RDS.
• Knowledge of geospatial data formats, tools, and standards (e.g., OGC, GeoServer, PostGIS, ESRI).
• Experience with IC enterprise environments and tools (e.g., Keycloak, Vault, CloudFormation).
• Certifications such as AWS Certified Developer, CISSP, Security+, SAFe Agile or similar.

Responsibilities

• Lead full-stack software development of enterprise applications and services supporting our customer's GEOINT mission.
• Design and implement secure, scalable microservices in cloud environments such as AWS GovCloud or C2S.
• Guide and mentor junior and mid-level engineers, enforce code quality, and lead peer reviews.
• Build and deploy applications using DevSecOps pipelines, container orchestration, and Infrastructure-as-Code tools.
• Collaborate with cross-functional teams including analysts, UI/UX designers, DevOps engineers, and product owners.
• Translate mission requirements into technical implementations that meet security, performance, and scalability needs.
• Ensure compliance with our customer and IC cybersecurity and accreditation standards (e.g., RMF, STIGs).

Benefits

• 401k
• health_insurance
• dental_insurance
• vision_insurance
• paid_holidays
• paid_volunteer_time
• tuition_reimbursement
• flexible_scheduling
• professional_development

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Industry: Professional, Scientific, and Technical Services
• Education Level: Bachelor's degree
• Number of Employees: 11-50 employees