Senior System Administrator

Empresaria Group plc; Greater London; Hybrid; GBP 60,000 - 80,000; Full time

Job summary

A leading technology firm in London is seeking a Senior System Administrator to join their fast-paced Family Office technology team. In this role, you will be responsible for managing robust and secure enterprise infrastructure to support business-critical operations. The ideal candidate must have extensive experience with Microsoft and VMware technologies along with strong skills in storage management and Exchange mailbox management. This position requires a meticulous individual who stays current with technology trends and developments.

Qualifications

• Achieved degree, ideally in technical or engineering subject.
• Formal training and certification in Microsoft or VMware Server technologies.
• Extensive experience with Microsoft and VMware on-premise is critical for the role.
• Any Google Workspace experience would be useful.
• Storage management experience extremely important, ideally with enterprise level tools.
• Previous Exchange mailbox management very important.
• Experience implementing and managing zero trust, IdP, multi-factor authentication, and conditional access strongly desirable.

Responsibilities

• Join fast-paced Family Office technology team.
• Manage robust, secure, and high-performing enterprise infrastructure.
• Ensure always-on services that support business critical operations.

Skills

Extensive experience with Microsoft on-premise

Extensive experience with VMware on-premise

Storage management experience with Veeam

Storage management experience with Exagrid

Storage management experience with Dell Storage

Storage management experience with Compellent

Storage management experience with VMware vSAN

Knowledge of Exchange mailbox management

Experience with Google Workspace

Knowledge of zero trust architecture

Experience with multi-factor authentication

Knowledge of SaaS platforms

Education

Achieved degree in technical or engineering subject

Tools

Microsoft Server technologies

VMware Server technologies

Job description

Senior System Administrator - London - Hybrid - 4 days on-site

Our client is seeking a Systems Administrator to join their fast‑paced Family Office technology team. The role is integral to delivering robust, secure, and high‑performing enterprise infrastructure for a globally roaming user base, ensuring always‑on services that support business‑critical operations.

The client operates the majority of their services on‑premise, with an emphasis on security and resiliency, however they are starting a careful move into use of more Microsoft 365 and safe AI.

The ideal candidate will be comfortable working in a fast‑paced environment, managing a continually changing workload with meticulous attention to detail, while remaining calm and positive. This role would suit a professional with a demonstratable interest in technology that extends outside work, and who keeps themselves up to date with news and developments in the field.

Qualifications and Skills

• Achieved degree, ideally in technical or engineering subject
• Formal training and certification in Microsoft or VMware Server technologies

Experience

• Extensive experience with Microsoft and VMware on‑premise is critical for the role
• Any Google Workspace experience would be useful
• Storage management experience extremely important, ideally with Veeam, Exagrid, Dell Storage, Compellent, VMware vSAN, or equivalent enterprise level
• Previous Exchange mailbox management very important. Including all standard mail operations, mail flow, and an understanding of SPF/DMARC/DKIM
• Experience implementing and managing zero trust, IdP, multi‑factor authentication, and conditional access strongly desirable
• Other SaaS platforms such as CrowdStrike, Threatlocker, Netskope, and Okta useful