Senior Systems Infrastructure Engineer

About the Role

Redhorse transforms the way government uses data and technology. To support this mission, we are seeking a Senior Systems Infrastructure Engineer to support a critical Sponsor office responsible for building, operating, and securing hybrid-cloud mission infrastructure and services.

In this role, you will play a key part in maintaining an enterprise ecosystem hosting dozens of Commercial off-the-shelf (COTS), Government off-the-shelf (GOTS), and custom applications alongside a large-scale data lake. Operating across on-premises data centers and commercial cloud (AWS) environments, you will lead complex engineering initiatives, deliver Tier 2 through Tier 4 problem resolution, maintain rigorous security baselines (DISA STIGs), and ensure continuous mission availability.

Key Responsibilities

• Lead and perform systems engineering efforts across Windows and Linux servers, workstations, storage platforms, and virtualization environments.
• Provide in-depth Tier 2 through Tier 4 engineering support, root-cause troubleshooting, and problem resolution for mission technology products and applications in a 24/7 environment.
• Perform engineering, configuration, and Tier 3/4 maintenance of virtualization infrastructure, including VMware vCenter, VMware NSX-T, virtual servers, virtual desktops, and automation solutions.
• Build, configure, and maintain Windows servers in Amazon Web Services (AWS) and on-premises environments, ensuring Windows Group Policy and configuration standards align with Sponsor security posture.
• Operate, administer, and maintain core enterprise services, including Active Directory, Domain Name System (DNS), Distributed File System (DFS), and Dynamic Host Configuration Protocol (DHCP).
• Perform data center management operations, including physical capacity planning, hardware racking/stacking, commissioning, cabling/circuit labeling, inventory tracking, decommissioning, and secure hardware destruction.
• Coordinate engineering projects by performing technical risk assessments, de-conflicting implementation schedules, and resolving technical challenges across stakeholder teams.
• Gather and analyze performance, capacity, and utilization metrics across infrastructure components, proactively alerting the Sponsor when operational thresholds are reached.
• Manage service requests, system changes, and incident lifecycle tracking using ServiceNow.

Required Experience/Clearance

• Active Top Secret/SCI (TS/SCI) security clearance with polygraph required.
• 5+ years of progressive experience in systems engineering, infrastructure operations, and multi-tier support in federal or enterprise environments.
• Demonstrated experience providing in-depth Tier 2 through Tier 4 support and complex problem resolution for enterprise technology products and applications.
• Demonstrated engineering experience leading and supporting Linux servers and workstations.
• Hands-on experience performing configuration, deployment, and administration of VMware vCenter and VMware NSX-T.
• Demonstrated experience operating and maintaining Active Directory, DNS, DFS, and DHCP services.
• Proven track record implementing and maintaining Defense Information Systems Agency (DISA) Security Technical Implementation Guides (STIGs) in accordance with government security posture.
• Hands-on experience monitoring, maintaining, and securing infrastructure using Splunk, Check_MK / Checkmk, McAfee ePO, and BitLocker.
• Demonstrated experience managing infrastructure requirements, changes, and incidents using ServiceNow.
• Demonstrated experience leading technical risk assessments, implementation coordination, and resolving engineering conflicts across cross-functional teams.

Desire Experience

We encourage all candidates who meet the basic requirements to apply, even if you do not have any of the following experience:

• Hands-on administration and engineering experience with Rocky Linux.
• Experience building, deploying, and optimizing virtual desktops using VMware Horizon VDI.
• Experience creating and presenting technical architecture and system documentation briefings to government review and approval boards.
• Prior experience serving in an Engineering Lead or Team Lead capacity for large IT modernization projects.
• Demonstrated experience coordinating, scheduling, and deconflicting complex IT engineering deliverables.
• Familiarity with Center for Internet Security (CIS) Benchmarks and automated compliance auditing.
• Experience executing Sponsor accountable property management, chain of custody, and property destruction processes for network encryption devices and hardware.
• Experience spanning Tier 1 through Tier 4 full lifecycle incident management and systems troubleshooting.