System Administrator – Windows, VMWare

Job Description:

• Administer and maintain Windows Server environments (primarily Windows Server 2016, 2019 and later), including installation, configuration, patching, and performance tuning.
• Manage and support core Microsoft services, including Active Directory Domain Services (AD DS), Group Policy Objects (GPOs), DNS, NTP and DHCP.
• Manage and support VMware infrastructure, including vSphere, vCenter Server, ESXi hosts, VMware HA, and DRS configurations.
• Support and maintain virtual and physical server infrastructure within data centre hosting environments.
• Perform monthly patching across multiple servers and ESXi hosts using centralized patch management tools and processes.
• Implement and maintain security best practices to protect systems and data; support vulnerability management processes.
• Provide technical support to clients, effectively troubleshooting and resolving issues related to Windows and VMware environments.
• Provide Problem Management support, including Root Cause Analysis (RCA) for client-impacting incidents and resolving complex underlying issues.
• Collaborate with team members on infrastructure planning, upgrades, migrations, and changes.
• Assist with server decommissioning and migration activities as required.
• Maintain clear and accurate documentation for system configurations, procedures, and troubleshooting guides.
• Coordinate effectively with vendors for technical support and procurement.
• Strong demonstrated work ethic with clear focus on customer success.
• Participate in an on-call rotation in an escalation capacity.

• 8 to 10 years of overall experience in IT infrastructure administration, with at least 5+ years of hands-on experience in both Windows Server and VMware administration.
• Strong experience in Windows Server administration (Windows Server 2016, 2019 and later).
• Proficiency in VMware virtualization technologies (VMware vSphere, vCenter Server, ESXi, Update Manager, HA, DRS).
• Experience managing VMware data stores and familiarity with underlying storage concepts (e.g., SAN, NAS, iSCSI, NFS).
• Experience in Power Shell scripting for task automation and system administration.
• Understanding of core networking concepts (TCP/IP, DNS, DHCP, VLANs, Firewall basics).
• Participate in an on-call rotation to provide 24/7 support for critical systems.
• Proven experience supporting infrastructure within datacenter hosting environments.
• Strong troubleshooting methodology and problem-solving skills.
• Excellent communication (verbal and written) and customer service skills.
• Ability to work independently as an Individual Contributor and manage tasks effectively.
• Relevant certifications (e.g., VCP-DCV, Microsoft Certified: Azure Administrator Associate or similar) are a plus.

• Competitive total rewards package
• Blog during work hours; take a day off and volunteer for your favorite charity
• Flexibly work remotely from your home, there’s no daily travel requirement to an office!
• Hone your skills or learn new ones with our substantial training allowance; participate in professional development days, attend training, become certified, whatever you like!
• We give you all the equipment you need to work from home including a laptop with your choice of OS, and an annual budget to personalize your work environment!
• Pythian cares about the health and well-being of our team. You will have an annual wellness budget to make yourself a priority (use it on gym memberships, massages, fitness and more).
• Generous amount of paid vacation and sick days, as well as a day off to volunteer for your favorite charity.