Senior Systems Administrator

About this role

Why This Role Matters
At Bluestaq, mission success depends on systems that are secure, reliable, and always ready. As a Senior Systems Administrator, you'll keep critical infrastructure running — maintaining, monitoring, and troubleshooting the applications and systems our teams and customers depend on around the clock. Your work directly strengthens the technical backbone behind Bluestaq's most important missions.

What You'll Own:

• Maintain and support the integrity of system networks through technical support and configuration management

• Perform daily maintenance, monitoring, and troubleshooting of applications, networking problems, and systems issues across both cloud-hosted and on-premises platforms

• Serve as a primary escalation point (Tier 2/3) for infrastructure incidents, outages, and performance degradation

• Administer Active Directory including GPO, role-based access controls, and user/group policy management

• Support cloud identity and access management (IAM) tools and practices

• Build and maintain automation workflows using Ansible, Terraform, Docker, and Kubernetes to reduce manual effort and improve reliability

• Perform software and system installations, upgrades, routine automation, and cybersecurity risk mitigation tasks

• Provide responsive, solutions-oriented support to system users, ensuring reliable access to tools and systems

• Maintain accurate, thorough documentation in Confluence — system configurations, change records, runbooks, and SOPs

• Track and manage work through Jira, communicating scope and status effectively to the team and stakeholders

• Coordinate with security and compliance teams to ensure systems meet DoD standards and hardening requirements

• Support 24/7 operations including shift work and on-call rotations as mission requires

• Contribute to team knowledge sharing and support the mentorship of junior administrators (L1/L2)

• Proactively identify issues, anticipate roadblocks, and escalate appropriately when needed

• Take responsibility for personal development and demonstrate a growth mindset

• You use modern AI tools with judgment: integrating them into workflows where they're impactful, reviewing their outputs, and handling proprietary or sensitive data responsibly

What You Bring:

What You Bring

Must-Have:

• Willing to support 24/7 operations and shift work.

• Active DoD Secret or Top Secret security clearance

• Proficient understanding of Linux systems administration in production environments

• Hands-on Active Directory administration experience

• Experience with cloud identity and access management (IAM) tools

• Working knowledge of system vulnerabilities and security issues

• Solid networking fundamentals — DNS, DHCP, VLANs, firewalls, and routing

• Working experience with automation and infrastructure-as-code tools (Ansible, Terraform, Kubernetes, Docker, or…