Sr. Systems Administrator

Senior Systems Administrator

The Senior Systems Administrator is responsible for the administration, implementation, optimization, maintenance, and recovery of enterprise systems across on-premises and cloud-based environments. This role serves as a subject matter expert for complex operating systems and core infrastructure services, supporting system availability, performance, security, and scalability. Working as part of an international support team, the Sr. System Administrator recommends and implements improvements to infrastructure systems, operating platforms, and related applications. Systems supported may include Microsoft Azure IaaS, PaaS, Microsoft Office 365, EntraID, MFA, Information Protection, Active Directory, MS Windows Server, Linux Server OS, SAN/NAS storage, enterprise backup platforms, and related infrastructure technologies. The role may also support infrastructure configurations related to ERP and integration platforms, including SAP and Dell Boomi.

Specific Duties and Responsibilities

Infrastructure & Platform Ownership:

• Manages the day-to-day operations of infrastructure hardware and software, including system performance, configuration, maintenance, patching, and repair.
• Administer, maintain, and optimize enterprise systems across on-premises and cloud environments.
• Apply revisions to host system firmware and software. Works with vendors to assist support activities.
• Support core infrastructure services, including Active Directory, DNS, DHCP, Microsoft PKI, Microsoft Entra ID, Group Policy, SCCM, Intune, Bitlocker, Key Management, Privileged Identity Management, Log Analytics, and Digital Rights Management.
• Manage and support SAN/NAS storage infrastructure to ensure high availability, performance, capacity, and scalability.
• Maintain enterprise backup and recovery systems, including procedures, documentation, and restoration processes for host operating systems, and host-based applications.
• Support Microsoft Azure lasS/PaaS, Microsoft 365, Windows Server, Linux Server, and related infrastructure platforms.
• Perform system health monitoring, capacity planning, lifecycle management, patching, and firmware/software updates.
• Support virtualization platforms, including Hyper-V and VMware.
• Provide after hours on call support on a rotation schedule with other staff members.

Troubleshooting, Automation & Continuous Improvement:

• Lead troubleshooting and root-cause analysis for complex infrastructure issues, working with vendors and internal support teams as needed.
• Develop and maintain infrastructure automation capabilities to improve service delivery, operational efficiency, and business continuity.
• Create tools, procedures, and documentation to support Client Support, Applications Development, and other internal teams.
• Recommend system redesigns, configuration changes, and technology improvements to strengthen performance, reliability, security, and scalability.
• Stay current with developments in systems administration, infrastructure automation, cloud services, and enterprise security technologies.

Security, Compliance & Governance:

• Enforce established procedures and governance policies to maintain security and protect infrastructure from unauthorized access, misuse, and service disruption.
• Understand and apply relevant security, privacy, compliance, and quality principles in accordance with Company policies and applicable regulations.
• Maintains procedures, programs, and documentation for backup and restoration of host operating systems and host-based applications.
• Adhere to the Company's Quality Management System (QMS) as well as domestic and global quality system regulations, standards, and procedures.
• Understand relevant security, privacy, and compliance principles and adhere to the regulations, standards, and procedures that are applicable to the Company.
• Ensure other members of the department follow the QMS, regulations, standards, and procedures.

General Responsibilities:

• Collaborate with IT, business vendors, and support teams to maintain reliable infrastructure operations.
• Communicate technical and complex information clearly, both verbally and in writing.
• Perform other work-related duties as assigned.

Position Qualifications - Required:

Bachelor's degree in Engineering, Computer Science, Information Technology, or a related field with 8+ years of enterprise-level systems administration and/or engineering experience; or an equivalent combination of education and experience. 8+ years of experience supporting Microsoft Technologies, including Windows Server, Active Directory/Entra ID, ADFS, DNS, DHCP, PowerShell, Intune, and SCCM/SCOM. 5+ years of experience supporting Microsoft Azure laaS/PaaS and Microsoft 365 services, including Exchange Online, OneDrive, SharePoint, Microsoft Teams, etc. Experience supporting SAN/NAS storage environments. Experience with enterprise backup and recovery procedures. Strong troubleshooting and problem-solving skills in Windows operating systems and TCP/IP networking. Experience deploying, configuring, and maintaining on-premises virtualization platforms, including Hyper-V and VMware. Experience installing, configuring, and maintaining PKI or similar certificate management tools. Experience automating infrastructure provisioning (IaC) and configuration management. Experience onboarding applications for SSO, with a strong understanding of SAML and OpenID protocols. Azure Solutions Architect Expert certification or equivalent experience. Experience administering ERP and integration platforms, such as SAP and Dell Boomi. Experience with Cisco UCS and other network hardware administration. DevOps experience in configuration management and infrastructure automation. Ability to plan, organize, and document complex system design activities and configure systems in alignment with institutional policies and procedures. Ability to manage multiple priorities, handle concurrent projects, and respond effectively to urgent or complex operational issues. High degree of accuracy, attention to detail, and organizational skill.

Position Qualifications - Preferred:

Experience administering Linux systems; RHEL experience preferred. Windows Server Hybrid Core Infrastructure and Advanced Services certification will be a plus.

Working Conditions

General office environment. Willingness and ability to work on site. Requires some lifting and moving of up to 10 pounds. Must be able to move between buildings and floors. Must be able to remain stationary and use a computer or other standard office equipment, such as a printer or copy machine, for an extensive period of time each day. Must be able to read, prepare emails, and produce documents and spreadsheets. Must be able to move within the office and access file cabinets or supplies, as needed. Must be able to communicate and exchange accurate information with employees at all levels on a daily basis.

What We Offer

A collaborative teamwork environment where learning is constant, and performance is rewarded. The opportunity to be part of the team that is revolutionizing the treatment of some of the world's most devastating diseases. A generous benefits package for eligible employees that includes medical, dental, vision, life, AD&D, short and long-term disability insurance, 401(k) with employer match, paid parental leave, eleven paid company holidays per year, a minimum of fifteen days of accrued vacation per year, which increases with tenure, and paid sick time in compliance with applicable law(s).

Penumbra, Inc., headquartered in Alameda, California, is a global healthcare company focused on innovative therapies. Penumbra designs, develops, manufactures, and markets novel products and has a broad portfolio that addresses challenging medical conditions in markets with significant unmet need. Penumbra sells its products to hospitals and healthcare providers primarily through its direct sales organization in the United States, most of Europe, Canada, and Australia, and through distributors in select international markets. The Penumbra logo is a trademark of Penumbra, Inc.

Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, sexual orientation, gender identity, age, disability, military or veteran status, or any other characteristic protected by federal, state, or local laws. If you reside in the State of California, please also refer to Penumbra's Privacy Notice for California Residents. For additional information on Penumbra's commitment to being an equal opportunity employer, please see Penumbra's AAP Policy Statement.