Job Type

Full-time

Description

We are seeking an accomplished Senior Systems Administrator to serve as a senior technical resource within our IT organization. This role owns the design, administration, and continuous improvement of our enterprise IT infrastructure including on-premises systems, cloud environments, identity platforms, cybersecurity operations, and core network services. The ideal candidate brings deep technical breadth, a strong security mindset, leadership through influence, and the maturity to operate independently on complex, high-impact initiatives while mentoring the broader IT team.

Infrastructure Leadership:
• Serve as the senior technical authority for all enterprise infrastructure including Windows Server, Linux, virtualization, storage, and backup systems
• Design, implement, and maintain scalable, highly available infrastructure architecture across on-premises and cloud environments
• Lead infrastructure projects from architecture through deployment: hardware refreshes, data center operations, cloud migrations, and platform upgrades
• Establish and enforce infrastructure standards, naming conventions, and configuration baselines across all managed systems
• Own capacity planning, lifecycle management, and technology roadmap input for infrastructure platforms

Cloud & Identity:
• Serve as the senior administrator for Microsoft Azure/Entra ID including hybrid identity, SSO, MFA, Conditional Access, and Privileged Identity Management (PIM)
• Manage and optimize the Microsoft 365 tenant at an advanced administrative level: Exchange Online, SharePoint, Teams, Intune, and Microsoft Defender
• Lead cloud strategy execution including IaaS/PaaS adoption, cloud cost governance, and architecture decision-making
• Design and maintain network security architecture: firewall rules, VLANs, SD-WAN, VPN, and Zero Trust network access principles

Security & Compliance:
• Work with IT leadership on enterprise cybersecurity operations programs including EDR, SIEM, vulnerability management, and incident response
• Lead patch management strategy and execution across all endpoints, servers, and network devices
• Work with IT leadership conducting regular security assessments and drive remediation of identified vulnerabilities
• Develop and maintain security policies and procedures aligned with NIST CSF or equivalent frameworks
• Support internal audits, external assessments, and regulatory inquiries from an IT infrastructure perspective

Team Leadership & Mentorship:
• Provide technical mentorship and day-to-day guidance to the IT Support Specialist team
• Conduct architecture reviews for infrastructure changes proposed by junior staff
• Develop and maintain comprehensive technical documentation including architecture diagrams, runbooks, SOPs, and change logs
• Lead root cause analysis (RCA) for major incidents and drive post-incident reviews and remediation
• Serve as the primary IT operational decision-maker in the IT Director's absence

Automation & Continuous Improvement:
• Develop and maintain PowerShell and scripting solutions to automate repetitive administrative tasks, reporting, and compliance checks
• Identify and drive opportunities to improve IT operational efficiency and strengthen security posture
• Evaluate and recommend emerging technologies to IT leadership with well-reasoned business cases
• Manage strategic vendor relationships for infrastructure, cloud, and security services

Requirements

Required Qualifications:
• 6+ years of progressive IT infrastructure and systems administration experience with demonstrated senior-level ownership
• Expert-level proficiency in Windows Server (2016/2019/2022): Active Directory, Group Policy, DNS, DHCP, DFS, and certificate services
• Advanced Microsoft Azure administration: Entra ID, Intune, Defender, or equivalent cloud security platform
• Deep expertise in VMware vSphere (vCenter, ESXi, vSAN) or Microsoft Hyper-V at scale
• Strong networking skills: routing, switching, VLANs, BGP/OSPF fundamentals, firewall policy management, VPN, and SD-WAN
• Proven PowerShell scripting and automation capabilities
• Demonstrated experience leading infrastructure projects and mentoring junior IT staff
• Strong written communication skills and ability to produce clear technical documentation

Preferred Qualifications:
• Microsoft Certified: Azure Administrator Associate (AZ-104) or Azure Solutions Architect Expert (AZ-305)
• VMware Certified Professional (VCP-DCV) or equivalent
• CompTIA Security+ or equivalent security certification
• Microsoft Certified: Identity and Access Administrator (SC-300) or Security Operations Analyst (SC-200)
• Experience with SIEM platforms such as Microsoft Sentinel or Splunk
• Familiarity with Zero Trust architecture principles and implementation
• Experience with infrastructure-as-code tools such as Terraform, Bicep, or Ansible
• ITIL v4 Foundation or Managing Professional certification

The compensation package for this role includes a base salary, commission, and equity. MaxCyte also offers a comprehensive benefits package including health, dental, vision, life, and disability insurance and generous time off.