Software Engineer 3 (Mission Application Dev & Int) with Security Clearance

Cornerstone Defense; Annapolis (MD); On-site; USD 190,000 - 210,000; Full time

Job summary

Cornerstone Defense in Annapolis Junction, MD seeks a Software Engineer 3 to develop, sustain, and troubleshoot the GHOSTGEM suite, including DINO, aligning with mission needs. You will implement, test, and integrate with COTS, GOTS, and FOSS components to deliver robust software.

Requirements include a Master’s or Bachelor’s with years of SWE experience or nine years, strong Linux CLI, Python and Rust skills, and experience with Docker, Kubernetes, Helm, MongoDB, and CI/CD tooling such as

Qualifications

• Master's degree in computer science or related discipline with 5+ years as a SWE; or Bachelor's with 7+ years; or 9+ years in similar scope.
• Experience with Linux CLI and tools.
• Shell scripting with Bash.
• Recent Python (3.x) development experience.
• Experience with Rust concepts or willingness to learn.
• Experience with NoSQL databases including MongoDB.
• Experience with Docker and containerd.
• Experience with Kubernetes.
• Experience creating Helm Charts for Kubernetes deployments.
• Familiar with RabbitMQ messaging frameworks.
• Familiar with GitLab CI/CD.
• Familiar with Ansible.
• Experience with PostgreSQL.
• Experience with Jira/Confluence.

Responsibilities

• Develop, sustain, and troubleshoot the GHOSTGEM software suite including DINO and future capabilities.
• Implement, test, and integrate with COTS, GOTS, and FOSS products, libraries, and packages.
• Collaborate with teams to address mission needs and ensure robust, secure software delivery.

Skills

Linux CLI

Bash scripting

Python

Rust

MongoDB

Docker

Kubernetes

Helm

RabbitMQ

GitLab CI

Ansible

PostgreSQL

Jira/Confluence

Education

Master's degree in computer science or related discipline

Bachelor's degree in computer science or related discipline

Nine years of SWE experience alternative

Tools

Docker

Kubernetes

Helm

RabbitMQ

GitLab CI

Ansible

Jira/Confluence

Job description

Title: Software Engineer 3 (Mission Application Dev & Int) Location: Annapolis Junction, MD Compensation Range: $190 -$210

• 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
• Summary: The Software Engineer shall be responsible for developing, sustaining, and troubleshooting GHOSTGEMs software suite of applications including DINO and possibly future capabilities as mission needs arise. Software development activities include implementation, testing, and integration with other COTS, GOTS, and FOSS products, packages, and libraries. Qualifications: Master's degree in computer science or related discipline from an accredited college or university, plus five (5) years of experience as a SWE, in programs and contracts of similar scope, type, and complexity. OR Bachelor's degree in computer science or related discipline from an accredited college or university, plus seven (7) years of experience as a SWE, in programs and contracts of similar scope, type, and complexity OR Nine (9) years of experience as a SWE, in programs and contracts of similar scope, type, and complexity. Required Skills:
• Experience using the Linux CLI and Tools
• Experience developing scripts using Bash
• Recent Python (3.x) software development experience
• Experience with Rust programming concepts, or a willingness and aptitude to learn Rust
• Experience with NoSQL databases including MongoDB
• Experience with containerization technologies such as Docker and containerd
• Experience with container orchestration technologies such as Kubernetes
• Experience creating Helm Charts to deploy containerized services on Kubernetes
• Familiar with Messaging Frameworks including RabbitMQ
• Familiar with CI/CD principles, methodologies, and tools including GitLab CI
• Familiar with IaC principles, methodologies, and tools such as Ansible
• Experience using Git Source Control System Desired Skills:
• Experience with SQL databases including PostgreSQL
• Experience with the Atlassian Tool Suite including Jira and Confluence