Software Engineer 3 (Atlassian Platform Dev & Int)
Cornerstone DefenseRole Overview
Cornerstone Defense is hiring a mid-level Software Engineer 3 (Atlassian Platform Dev & Int). This is a contract role in Annapolis Junction. Full responsibilities, required qualifications, and the apply link are listed in the description below.
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Job Description
Title: Software Engineer 3 (Atlassian Platform 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 designing, developing, and maintaining Tools and Services in support of the Atlassian’s suite of products (such as Jira, Confluence) collectively known as SUBURBANDEVELOPMENT. The Software Engineer shall work closely with cross-functional teams including software developers, system administrators, project managers, and mission customers to deliver seamless integrations that enhance productivity and streamline workflows.
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 Linux Tools
- Experience writing Bash/Python/PHP scripts to automate administrative tasks and workflows
- Extensive software development experience with Java
- Experience using an integrated development environment such as the Atlassian plugin software developer kit (SDK) or Visual Studio Code (VS Code)
- Experience with IaC principles and automation tools such as Ansible
- Experience creating documentation of configurations, procedures, and system changes
- Experience with CI/CD principles, methodologies, and tools such as GitLab CI
- Experience with containerization technologies such as Docker
- Experience deploying containerized services under Kubernetes orchestration
- Experience with Git for source code management, branching strategies, and team collaboration
Desired Skills
- Experience with the Atlassian Tool Suite (JIRA, Confluence)
- Experience with sustaining mission applications deployed in a Linux environment
- Experience with interacting/training external customers
Frequently Asked Questions
How do I apply for the Software Engineer 3 (Atlassian Platform Dev & Int) position at Cornerstone Defense?
Use the Apply button above to submit your application directly to Cornerstone Defense. Most applications take less than 5 minutes if your resume and contact details are ready, and you'll be routed to the employer's official application system to finish.
Where is the Software Engineer 3 (Atlassian Platform Dev & Int) position at Cornerstone Defense located?
This position is based in Annapolis Junction. Cornerstone Defense has not indicated remote or hybrid options for this role, so candidates should plan for on-site work.
What does a Software Engineer 3 (Atlassian Platform Dev & Int) at Cornerstone Defense earn?
Cornerstone Defense has not disclosed a salary range in this posting. Many employers share specifics later in the interview process; you can also ask during a recruiter screen if compensation transparency is important to you.
When was the Software Engineer 3 (Atlassian Platform Dev & Int) role at Cornerstone Defense posted?
This role was posted on April 24, 2026 (54 days ago). It's still listed as actively hiring; we re-confirm openings against the source system multiple times per day and remove closed roles.
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