Senior Systems Infrastructure Engineer with Security Clearance

Redhorse Corporation; Chantilly (VA); On-site; USD 180,000 - 210,000; Full time

Job summary

Redhorse Corporation is seeking a Senior Systems Infrastructure Engineer to support a Sponsor office managing hybrid-cloud mission infrastructure and services in AWS and on-premises data centers.

The role requires 5+ years in systems engineering, expertise with Windows/Linux, VMware NSX-T, Active Directory, and security baselines (DISA STIGs). TS/SCI with polygraph is required for clearance. Competitive salary and benefits.

Qualifications

• 5+ years of progressive experience in systems engineering, infrastructure operations, and multi-tier support in federal or enterprise environments.
• Hands-on experience with Windows and Linux server administration and virtualization.
• Experience delivering Tier 2–4 engineering support and complex problem resolution for enterprise IT environments.
• Proven track record implementing DISA STIGs and governing security baselines across large IT ecosystems.

Responsibilities

• Lead systems engineering efforts across Windows and Linux servers, storage, and virtualization.
• Provide Tier 2–4 engineering support, root-cause analysis, and incident resolution in a 24/7 environment.
• Maintain and configure virtualization infrastructure (VMware vCenter/NSX-T) and automation solutions.
• Manage core services (AD, DNS, DFS, DHCP), and operate data centers with capacity planning and hardware lifecycle tasks.
• Coordinate risk assessments, schedules, and cross-team issue resolution.
• Track performance and utilization metrics; alert when thresholds are reached.
• Handle service requests and changes using ServiceNow.

Skills

Systems engineering

Linux administration

Windows administration

Tier 2–4 support

Security posture

ServiceNow

Tools

VMware vCenter

VMware NSX-T

Active Directory

DNS

DFS

DHCP

Splunk

Check_MK

McAfee ePO

BitLocker

ServiceNow

Job description

About the Organization

Now is a great time to join Redhorse Corporation. We are a solution-driven company delivering data insights and technology solutions to customers with missions critical to U.S. national interests. We’re looking for thoughtful, skilled professionals who thrive as trusted partners building technology-agnostic solutions and want to apply their talents supporting customers with difficult and important mission sets.

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

• 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.

$180,000 - $210,000 a year The salary range provided for this position represents the anticipated base salary for successful candidates. Actual compensation will be determined based on a variety of factors, including relevant experience, education, certifications, skills, security clearance level, geographic location, market conditions, and internal equity. In addition to base salary, eligible employees may participate in Redhorse's comprehensive benefits programs and may be eligible for performance-based or other incentive compensation, where applicable.

Redhorse Corporation is an equal opportunity employer. All qualified applicants will receive consideration for employment and will not be discriminated against on the basis of race, color, religion, sex, sexual orientation, gender identity, national origin, veteran status, disability, or any other protected class. If you are a qualified individual with a disability or a disabled veteran, you may request a reasonable accommodation if you are unable or limited in your ability to access job openings or apply for a job on this site as a result of your disability. You can request reasonable accommodations by contacting Talent Acquisition at

Redhorse Corporation shall, in its discretion, modify or adjust the position to meet Redhorse’s changing needs. This job description is not a contract and may be adjusted as deemed appropriate in Redhorse’s sole discretion. We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.