Senior Infrastructure Administrator, Systems

Raft Company Website•Colorado Springs, CO

3h•$130,000 - $160,000•Onsite

About The Position

As a Senior Infrastructure Administrator, Systems supporting Digital Bloodhound, you will help operate, maintain, and secure mission-critical Linux infrastructure supporting cyber operations. This role is focused on the day-to-day administration, monitoring, troubleshooting, and sustainment of systems that support Detection-as-Code, cyber tooling, data pipelines, and operational environments. You will manage Linux-based systems, support containerized and virtualized environments, troubleshoot production issues, maintain system security baselines, and help ensure reliable platform performance for mission users. You will work closely with engineering, cybersecurity, platform, and customer stakeholders to support system availability, hardening, automation, and operational readiness. This role requires a hands-on administrator who is comfortable working in secure environments, supporting production systems, automating repeatable tasks, and resolving infrastructure issues quickly and effectively.

Requirements

10+ years of systems administration, infrastructure, or production operations experience
Hands-on Linux administration experience, with a focus on Red Hat Enterprise Linux
Ability to troubleshoot production performance, server, OS, application, and environment issues
Bash scripting skills for automation, system checks, log review, and repeatable admin tasks
Python scripting ability for system automation, tooling, or operational support
Experience supporting containerized and virtualized environments such as Docker, VMware, Kubernetes, and Ansible
Familiarity with cybersecurity tools such as Suricata and Zeek
Experience working with logging, monitoring, or analytics tools such as Elastic, Logstash, and Kibana
Familiarity with network devices, network troubleshooting, and basic routing/switching concepts
Bachelor’s degree in a technical field or equivalent practical experience
Secret clearance required
Must be a U.S. citizen to be eligible for employment
All work must be conducted within the continental U.S.

Nice To Haves

Security+, CCNA, CCDE, or other IAT Level I or higher certification
Experience supporting DoD, cyber, mission, or secure government environments
Familiarity with DISA STIGs, system hardening, vulnerability remediation, or compliance-driven operations
Understanding of operational support, change management, incident response, and project lifecycle processes
Familiarity with SAFe (Scaled Agile Framework) or other scaled Agile delivery frameworks
Ability to work across infrastructure, cybersecurity, and software teams
Clear communication skills with technical and non-technical stakeholders
Problem-solving mindset and ability to adapt as mission and business needs evolve

Responsibilities

Operate, maintain, and secure mission-critical Linux infrastructure supporting cyber operations.
Day-to-day administration, monitoring, troubleshooting, and sustainment of systems that support Detection-as-Code, cyber tooling, data pipelines, and operational environments.
Manage Linux-based systems.
Support containerized and virtualized environments.
Troubleshoot production issues.
Maintain system security baselines.
Ensure reliable platform performance for mission users.
Work closely with engineering, cybersecurity, platform, and customer stakeholders to support system availability, hardening, automation, and operational readiness.
Support patching, upgrades, configuration changes, system hardening, and security remediation.
Support disaster recovery planning, backup validation, and system restoration efforts.