Senior Applications Administrator

We are seeking an experienced Senior Applications Administrator to help manage and maintain our critical business applications infrastructure. This role is responsible for ensuring the reliability, security, and optimal performance of our enterprise collaboration and development platforms including Git Lab, Jira, Confluence, Teamwork Cloud, Syndeia, and related systems.

• Administer and maintain key enterprise applications such as Git Lab, Jira, Confluence, Teamwork Cloud, and Syndeia platforms.
• Perform regular system updates, patches, and version upgrades across all applications.
• Monitor system performance, capacity, and availability to ensure optimal uptime.
• Troubleshoot and resolve application issues in a timely manner.

• Configure and customize applications to meet organizational needs.
• Manage user accounts, permissions, and access controls.
• Optimize system performance and resource utilization.
• Develop and maintain integration between various platforms.
• Create and maintain system documentation and standard operating procedures.

• Implement and maintain security best practices across all applications.
• Ensure compliance with company policies and industry standards.
• Collaborate with development teams and stakeholders on system requirements.
• Participate in change management and release planning processes.
• Work with vendors and support teams to resolve complex issues.
• Document processes, configurations, and troubleshooting procedures.

• Bachelor's degree in Computer Science, Information Technology, or related field (or equivalent experience).
• 7+ years of experience in systems administration or similar role.
• 3+ years of hands‑on experience with enterprise application management.

• Strong experience with Git Lab administration (repositories, CI/CD pipelines, runners).
• Proficiency with Atlassian suite (Jira, Confluence) administration.
• Understanding of networking concepts (DNS, load balancing, proxies).
• Database management (Postgre
  
  SQL, MySQL, or similar).
• Scripting skills (Bash, Python, or Power Shell).

• Docker and container orchestration (Kubernetes).
• Configuration management tools (Ansible, Puppet).
• Experience with Teamwork Cloud and Syndeia platforms.
• LDAP/Active Directory integration.
• API integration and REST services.

• Ability to manage multiple priorities in a fast‑paced environment.
• Strong analytical and problem‑solving abilities.
• Excellent communication skills (written and verbal).
• Ability to work independently and as part of a team.
• Strong organizational and time‑management skills.

At STR, you will lead cutting‑edge information technology initiatives that support critical infrastructure, business operations, and national security. This role offers the opportunity to be a high‑performing individual working in IT environments that enable mission success for the warfighter and strengthen national resilience.

STR is a growing technology company with locations near Boston, MA;
Arlington, VA;
Dayton, OH;
Melbourne, FL; and Carlsbad, CA. We specialize in advanced research and development for defense, intelligence, and national security in cyber, next‑generation sensors, radar, sonar, communications, and electronic warfare, and artificial intelligence algorithms and analytics.

Full‑time salary range: $130,000 to $175,000.

STR is an equal opportunity employer. We are fully dedicated to hiring the most qualified candidate regardless of race, color, religion, sex (including gender identity, sexual orientation and pregnancy), marital status, national origin, age, veteran status, disability, genetic information or any other characteristic protected by federal, state or local laws.

Positions at STR require employees to obtain national security clearances and satisfy the requirements for compliance with export control and other applicable laws.

Visit us .us for more information.