Senior Systems Administrator

Position Type: Full-Time / Exempt

Clearance: Top Secret/SCI with CI Polygraph

Location: Denver, CO

SOC Code: 15-1299.08

Salary*: $,000

Summit 7 is here to rise above the ordinary. The work we do here goes far beyond day-to-day projects - it further protects the US defense industrial base from cyber threats, fosters thought leadership, and creates growth opportunities. Our support staff, sales team and technicians are all coming together to make a difference. We also recognize that you're a person with life beyond work, that's why we invest in these meaningful health and welfare benefits:

• Excellent health benefits from BCBS
• Smile brighter with Ameritas dental
• See into the future with our luxurious VSP vision benefits
• Prepare for the long-haul courtesy of our 401k with company matching
• 10 days vacation, 7 days sick time
• Bonuses and salary increase potential via our certifications plan

We do cool work here, defying expectations by simply being who we are - each of us makes an impact.

We are seeking an experienced Senior Systems Administrator to join our Cleared IT Support Team. This role is pivotal in managing and optimizing advanced IT infrastructure while leading technical initiatives to support organizational goals. The Senior Systems Administrator will collaborate with Senior Engineers, Network Administrators, security teams, and IT specialists to ensure the secure and efficient operation of multi-user computer networks, including WANs and standalone systems.

The ideal candidate will supplement the team in addressing technical challenges, implementing cutting‑edge solutions, and driving process improvements. This position involves administering server and workstation infrastructure, networking environments, optimizing system performance, and ensuring compliance with security standards. This role will involve interactions with customer users both onsite and through a service desk and being a liaison for the team between higher level engineers and the service desk personnel.

• Assist with the administration and optimization of Windows Server and Active Directory environments, including DNS, DHCP, and group policy configuration.
• Oversee and maintain enterprise virtualization environments (e.g., VMware, Hyper‐V).
• IT support relating to technical issues involving Microsoft's core business applications and operating systems.
• Document new and existing Policies, Procedures, and Network Diagrams.
• Identify gaps and faults in existing processes; implement new procedures to improve capabilities.
• Act as liaison between highly technical engineers and less technical tier 1 technicians.
• Create easy to follow knowledge base articles that solve complex technical problems.
• Train and mentor junior staff.
• Intermediate to advanced understanding of Microsoft products (Exchange, SharePoint, Windows, Windows Server, Active Directory, etc.).
• Intermediate technical support at the network level: WAN and LAN connectivity, routers, firewalls, switches, security, etc.
• Able to quickly move between tasks to cover escalation and project needs.
• Communicates effectively with the clients, notifying them of impending changes, ticket progress, and agreed outages.
• Resolute dedication to unparalleled customer service.

• Fast turnaround of escalated requests.
• Ability to work in a team and communicate effectively.
• Responsible for entering all time and expenses within corporate guidelines.
• Continuous education, expansion, and refinement of technical knowledge, and credibility through industry standard certifications.
• Interpret and discuss information with others and regularly provide and recommend actions involving complex issues.
• Demonstrate professional attitude with clients and team members and enhance relationships.
• Other duties as assigned.

• Associate or bachelor's degree in computer science or related degree OR at least five (5) years of IT or related experience. Special preference for senior systems administration support.
• Top Secret/SCI with CI Polygraph.
• CompTIA Security+ Certification.
• Microsoft Windows Server 2016+ Administration Experience.
• Microsoft Active Directory Administration…