Systems Engineer

TIAG; Arlington (VA); On-site; USD 110,000 - 170,000; Full time

Job summary

TIAG in Arlington, VA is seeking a Systems Engineer to support the Office of Naval Research. The role requires an active Secret clearance and is onsite five days a week, focusing on Windows Server, AD, DNS, VMware, and hybrid cloud operations.

You will collaborate with cloud, network, and cybersecurity teams to maintain secure, highly available enterprise infrastructure in AWS and on premises, manage migrations, and contribute to planning, documentation, and incident resolution.

Qualifications

• Active Secret clearance required.
• 5+ years of server/system administration experience.
• Experience with Windows Server, AD, DNS, VMware.
• Cloud experience in AWS.
• Knowledge of DoD cybersecurity requirements and STIGs.

Responsibilities

• Administer, maintain, troubleshoot, and optimize enterprise Windows Server infrastructure.
• Support AWS EC2 workloads and on-premises integration including AD, DNS, and virtualization.
• Collaborate with Cloud, Network, Cybersecurity, and IT Operations teams to ensure security and availability.
• Lead patching, configuration management, and backup/recovery activities.
• Document configurations, changes, and incident resolutions; support RMF/ATO efforts.

Skills

Active Secret clearance

Server troubleshooting

Cross-functional collaboration

Documentation

Education

Bachelor's degree in CS/EE/IT

Tools

Windows Server

Active Directory

DNS

VMware vSphere

AWS

PowerShell

VMware vCenter

Job description

TIAG is now hiring a Systems Engineer to join our team in support of our team at the Office of Naval Research (ONR) in Arlington, VA. Candidates must possess an active Secret clearance to be considered. This position reports onsite to the ONR location in Arlington 5 days/week.The Systems Engineer will be responsible for administering, maintaining, troubleshooting, and optimizing enterprise Windows Server infrastructure across on-premises and AWS cloud environments.This role supports ONR's mission-critical enterprise IT operations, including Windows Server administration, Active Directory, DNS, VMware virtualization, systems integration, and hybrid infrastructure support. The Systems Engineer will collaborate with cloud engineering, network operations, cybersecurity, and enterprise support teams to maintain secure, reliable, and highly available infrastructure.This role will be responsible for supporting the Server team with design, implementation, documentation, and troubleshooting of the enterprise server environment. The Engineer will manage server infrastructure related problems, performance, and capacity as well as work hand-in-hand with the network infrastructure team on issues impacting the enterprise environment.Responsibilities include providing expert technical support, administration, and engineering on all Microsoft Windows Operating Systems through the following ways:Supports Windows Server workloads operating within AWS, including Amazon EC2 instances and associated storage resources.Assists with AWS instance configuration, operating system administration, monitoring, backup, and maintenance.Troubleshoots connectivity and integration between AWS-hosted Windows systems and on-premises enterprise services.Supports cloud migration activities, including server assessments, configuration validation, workload testing, and post-migration troubleshooting. - Collaborate with Cloud Engineers and Cloud Solutions Architects to implement approved infrastructure designs.Maintains awareness of AWS security, availability, and operational best practices.Helps to prepare plans for development and installation of server according to present and future requirements.Monitors, performance tunes, troubleshoots and resolves systems problems to ensure system availability.Provides expert technical support with entire VMWare environment.Leads and performs changes to OS, databases, applications, servers, storage, network, and backups in the data center as well as development environments.Manages the configuration, administration, upgrade, and maintenance of corporate and DR servers and related infrastructure as well as the Storage Environment.Engineers/assists in developing solutions aligned with security, uptime and performance.Applied DoD security requirements, DISA Security Technical Implementation Guides (STIGs), and approved system configuration baselines.Supports vulnerability scanning, remediation, and system hardening activities.Implements and maintain security patches and configuration updates in accordance with established timelines.Collaborates with Information Assurance personnel to support Risk Management Framework (RMF) and Authority to Operate (ATO) requirements.Maintains system configuration documentation and evidence supporting security assessments and continuous monitoring.Assists with remediation of identified security vulnerabilities and Plans of Action and Milestones (POA&Ms).Maintains awareness of system management and network monitoring and the operational support tools to maintain those functions.Works with server patch management processes and procedures to facilitate deployment.Provides for the management, testing and installation of security patches and cyber security products.Provides infrastructure architecture recommendations.Maintains systems integrity through change control and problem management procedures and communication with internal customers.Accomplishes department objectives by leading staff; organizing and monitoring work processes.Attends and participates in team meetings, training sessions, and company-sponsored programs as required.Minimum of 5 years experience related to server/system design and administrationKnowledge of the principles, methods, and techniques used in physical and virtual server administration and engineeringAdvanced knowledge of and ability to use: PWS relevant hardware (hypervisors, blade servers, switches, routers, bridges, firewalls)Software (multiple operating systems, virtualization software, monitoring tools, IPv4, IPv6) Other common server/network and user equipment (e.g., SAN, NAS, Video bridge)Familiarity with AWS cloud infrastructure, particularly EC2 and Windows Server workloads.Understanding of hybrid infrastructure environments integrating on-premises systems with cloud services.Experience supporting backup, recovery, system monitoring, and infrastructure maintenance activities.Familiarity with DISA STIGs, vulnerability remediation, and DoD cybersecurity requirements.Strong technical documentation, communication, and troubleshooting skills.Ability to collaborate effectively with multidisciplinary engineering and cybersecurity teams.Ability to solve server problems or server infrastructure issues and to manage the performance and capacity of an enterprise server environmentCertifications: VCP, Server+, Microsoft Server Certification, Certified Network Engineer, OR similar professional computing environment certification. (DoD 8570IAT Level II Computing Environment Cert)Secret clearancePreferred QualificationsMicrosoft Certified: Windows Server Hybrid Administrator Associate, or an applicable successor certification.AWS Certified Cloud Practitioner or AWS Certified Solutions Architect – Associate.Experience supporting Windows Server workloads in AWS GovCloud (US) or other approved government cloud environments.Experience with AWS Systems Manager, CloudWatch, EBS, and AWS Backup.Experience with PowerShell scripting and infrastructure automation.Experience with VMware vSphere, vCenter, and ESXi administration.Familiarity with Microsoft Azure, Entra ID, and hybrid identity environments.Experience with enterprise backup and disaster recovery solutions.Experience supporting DoD, Department of the Navy, or other federal government IT environments.Familiarity with ITIL processes, IT Service Management (ITSM), and Configuration Management Databases (CMDBs).TIAG is an equal opportunity employer and federal contractor or subcontractor. Consequently, the parties agree that, as applicable, they will abide by the requirements of 41 CFR 60-1.4(a), 41 CFR 60-300.5(a), and 41 CFR 60-741.5(a) and employment decisions shall be based solely on merit and without regard disability, or protected veteran status, or any other characteristic protected by local, state, or federal laws, rules, or regulations. TIAG takes proactive steps to employ and advance in employment qualified individuals without regard to disability or protected veteran status. The parties also agree that, as applicable, they will abide by the requirements and may be subject and required to take action pursuant to the following laws and accompanying regulations:The Vietnam Era Veterans Readjustment Assistance Act of 1974, as amended (and its implementing regulations at 41 C.F.R. 60-300);Section 503 of the Rehabilitation Act of 1973, as amended (and its implementing regulations at 41 C.F.R 60-741); andExecutive Order 13496 (and its implementing regulations at 29 C.F.R. part 471, Appendix A to Subpart A).