Job PurposeTo support the Cyber Defense CMS Team as a top-level Systems Subject Matter Expert (SME) to ensure continuity, security, and reliability of infrastructure and services for internal and external stakeholders. With your robust IT background, your role will focus on technical details across the full lifecycle of projects and IT operations. As a Sr Infrastructure Engineer, your responsibilities will be varied, encompassing the administration, troubleshooting, and optimization of complex systems built on both traditional and cloud-based environments. You will support various deployed systems, work on multiple projects simultaneously, and collaborate closely with colleagues across departments. You will also contribute to the design, implementation, and improvement of IT services and policies.Responsibilities
Provide day-to-day Tier 2 & 3 technical support for infrastructure systems, ensuring their availability, performance, and security.
Manage, monitor, and troubleshoot virtualization technologies such as VMware vSphere, NSX-T, vSAN, and Horizon View to maintain a highly available environment.
Administer Windows Server systems (Active Directory, DNS, DHCP, Group Policy, File/Print Servers), Linux-based environments, and Microsoft O365 services.
Manage and optimize backup and disaster recovery solutions (e.g., Veeam, Veritas Enterprise Vault) to ensure data integrity and rapid recovery.
Administer and support device management solutions such as AirWatch/Workspace One to ensure endpoint security and compliance.
Support SharePoint services, ensuring document collaboration, performance, and access controls.
Perform proactive infrastructure health checks, apply patches and updates, and implement improvements to minimize downtime.
Respond to escalated incidents and service requests, troubleshoot system bottlenecks, and resolve outages to meet SLAs.
Collaborate with cross-functional teams to design and implement new IT solutions, infrastructure improvements, and cloud integrations (e.g., Azure, AWS, GC).
Liaise with vendors and external service providers for hardware and software upgrades, technical support, and project implementation.
Ensure compliance with IT service management (ITSM) frameworks and processes, such as incident, change, and problem management.
Provide mentorship and advanced-level guidance to junior team members
Write comprehensive technical reports, including root cause analyses, security assessment findings, and system performance reports.
Requirements
At least 10 years of hands-on experience in system architecture, deployment, maintenance, and managed services support.
Proven expertise in virtualization platforms, including VMware vSphere, NSX-T, vSAN, and Horizon View.
Adept at managing Windows and Linux-based server environments and delivering reliable, secure infrastructure.
Experience with core Microsoft infrastructure components, including Active Directory, O365, Exchange, and SharePoint.
Proficiency in backup and disaster recovery solutions (e.g., Veeam, Veritas Enterprise Vault).
Familiarity with IT service management (ITSM) principles and tools.
Skilled in scripting and automation tools (e.g., Ansible, Puppet, Chef) to improve efficiency.
Strong knowledge of Windows Server configurations (Active Directory, DNS, DHCP, GPOs, file and print services).
Proven ability to manage enterprise device management platforms like AirWatch/Workspace One.
Strong background in database management and MS SQL support.
Advanced-level experience in managed services and ITSM policy compliance.
Extensive experience in systems monitoring, performance tuning, and implementing system improvements.
Advanced-level experience planning, implementing, and improving systems policies and configurations.
Strong written and verbal communication skills, enabling effective collaboration with stakeholders.
Accountable and reliable with a commitment to completing tasks on time.
A collaborative team player who fosters productive teamwork and mutual support.