Senior Infrastructure Engineer (ONSITE)

Job summary

SSR Total IT is seeking an experienced Senior Infrastructure Engineer to serve as a trusted technical advisor to clients and a key contributor within the Infrastructure & Security Engineering division. This role involves owning client environments, leading infrastructure projects, and acting as a trusted advisor to small and mid-sized businesses.

Benefits

Qualifications

• 8+ years supporting complex IT infrastructure environments across multiple clients, sites, or business units
• Deep Windows Server and Active Directory expertise, including design, administration, and troubleshooting across current versions (2016/2019/2022)
• Advanced networking skills including VLAN design, VPN architecture, firewall policy management, and switching (Cisco, Meraki, Fortinet, or equivalent)
• Hands-on Microsoft 365 and Azure experience including tenant administration, Entra ID, Exchange Online, and cloud architecture
• Strong virtualization platform experience with VMware and/or Hyper-V, including deployment, management, and migrations
• Demonstrated ability to lead infrastructure projects with minimal oversight and own outcomes end to end
• Confident client-facing communicator with experience serving as a trusted technical advisor to business stakeholders
• Hardware platform experience including HP, Dell, Meraki, and Cisco environments
• MSP or multi-client consulting experience with direct environment ownership across diverse client stacks
• Veeam, Datto, or comparable backup and disaster recovery platform experience, including tested restores
• Security tool experience (SentinelOne, KnowBe4, Duo, Qualys, Greenbone, or similar) with the ability to advise clients on security posture
• Exposure to compliance frameworks including HIPAA, CMMC, NIST, or PCI
• Active certifications (Microsoft Azure Administrator, Security+, VMware VCP, Cisco/Meraki, or equivalent)

Responsibilities

• Act as the technical leader for assigned client environments
• Design, implement, and maintain servers, security, networking, firewalls, backups, and cloud platforms
• Support and architect Microsoft 365 and Azure environments
• Lead migrations, upgrades, virtualization, and infrastructure projects
• Assist the Technical Operations Center (TOC) with escalations
• Perform proactive system reviews and recommend improvements
• Continuously improve skills and certifications for market needs

Skills

Certifications

Relocation