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Software Engineer 1 (Backend Development & Test) with Security Clearance

Cornerstone DefenseAnnapolis, MD🇺🇸United StatesPosted 25 Jul 2026

Why This Role Stands Out

Advance your backend development and testing career with a highly competitive salary and the flexibility of a hybrid work model at Cornerstone Defense, where you'll tackle complex national security challenges and receive excellent support. This role is perfect for a mid-senior engineer with a Master's or Bachelor's degree and relevant experience, who thrives in a mission-driven environment and seeks continuous learning opportunities. Apply today to join a team dedicated to innovation and employee well-being.

Quick Overview

Salary
$150k - $170k/yr
Work Type
Hybrid
Level
Mid Senior

Job Description

Title: Software Engineer 1 (Backend Development && Test) Location: Annapolis Junction, MD Compensation Range: $150 - $170K *Clearance: *Active TS/SCI w/ Polygraph needed to apply * Company Overview: Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government. Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission. Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation's toughest and most secure problems. If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don't look any further than Cornerstone Defense. Benefits Overview: Cornerstone Defense offers a very comprehensive benefits package including, but not limited to: Medical, Dental and Vision Plans * Generous PTO Policy * 401(k) * HSA and FSA options * Life and Disability Insurance * Tuition Reimbursement and Training * Perks at Work Discount Program * Referral Program * Leads Generation Program * CollegeAmerica 529 * Fitness Reimbursement Program * Travel Assistance * Norton Lifelock Benefit Solutions * Life Planning Financial && Legal Services * Position Description: The Software Engineer shall be responsible for developing, sustaining, and troubleshooting GHOSTGEMs software suite of applications. Software development activities include implementation, testing, and integration with other COTS and FOSS products, packages, and li braries. Qualifications: Masters degree in Computer Science or related discipline from an accredited college or university. OR Bachelors degree in Computer Science or related discipline from an accredited college or university, plus two (2) years of experience as a SWE, in programs and contracts of similar scope, type, and complexity OR Four (4) years of experience as a SWE, in programs and contracts of similar scope, type, and complexity. Position Required Skills: * Experience using the Linux CLI and Linux Tools * Experience developing scripts using Bash/Python * Recent software development experience using Java * Recent software development experience using the Spring Framework including Spring Boot, Spring Data and Spring Integration * Experience with NoSQL databases including MongoDB * Experience with containerization technologies such as Docker and containerd * Experience with container orchestration technologies including Kubernetes * Familiar with Messaging Frameworks such as RabbitMQ and Kafka * Familiar with CI/CD principles, methodologies, and tools such as Bamboo and GitLab CI * Familiar with IaC principles, methodologies, and tools including Ansible * Experience using Git Source Contr ol System Position Desired Skills: * Experience with the Atlassian Tool Suite including Jira and Confluence * Experience creating Helm Charts to deploy containerized services in a Kubernetes environment

Skills

Docker
MongoDB
Spring
Spring Boot
Ansible
Bamboo
Bash
Confluence
Git
GitLab CI
Helm
Java
Jira
Kafka
Kubernetes
Python
RabbitMQ

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