Jobs
My ads
My job alerts
Sign in
Find a job Career Tips Companies
Find

Senior systems administrator

London
PHD Mail Limited
Systems administrator
Posted: 8h ago
Offer description

Senior Systems Administrator Prerequisites

IT Systems and Infrastructure experience & knowledge (4-5+ years)

A self-motivated individual with excellent problem-solving skills

A trustworthy team player with good communication skills

Working within a small systems team supporting the business across 2 sites supporting all departments and users, you will report to the head of department and provide support for systems and infrastructure. You will be responsible for effective provisioning, installation/configuration, operation, and maintenance of systems hardware and software and related infrastructure.

This role requires the individual to participate in technical research and development to enable continuing innovation within the infrastructure. This individual ensures that system hardware, operating systems, software systems, and related procedures are in line with the organisations requirements and strategic direction.

The scope of the role includes responsibility for internal infrastructure hardware and software as well as operational infrastructure including online systems, extending to cloud-based services where appropriate. Where required there will need to be involvement in new project work, where a hardware or software solution is needed to deliver the project, this may include suggestions for solution delivery both in terms of hardware/software and appropriate proof of concept work and testing.

The role requires the creation and maintenance of suitable documentation including network infrastructure and operating processes and procedures. The Senior SA will produce regular reports (monthly) showing the health of the network and usage patterns identifying any issues or trends that need attention.

In line with good security principles, the Senior SA will consider the Confidentiality, Integrity and Availability of all systems and wherever new requirements or changes are being requested/evaluated. The role requires the provisioning and maintenance of the Disaster Recovery (DR) solution for the business with regards to computer infrastructure, hardware, and software.

Technologies

Windows Server 2019,2022, Hyper V Manager, Failover Cluster Manager

Microsoft Azure / Office 365 / Intune / MS Teams, Backup & Replication (Veeam)

SQL Server, Vulnerability scanning (Nessus)

Essential Skills

Microsoft Multifactor Authentication, Demonstrable skills in both on-prem and cloud infrastructure

Firewall management (Sophos advantageous), Network Configuration, Routers, Internet, VPN's, WiFi, Ethernet / Fibre, VLAN s

IP Subnetting and segregation, Office 365 Configuration and administration

SMTP and email technologies (DKIM / SPF / DMARC), Switch Management

WSUS Management, Active Directory Administration, Experienced with Virtualization (HyperV advantageous)

Windows Server Domain Controller Knowledge, Experienced with Group Policy

Good knowledge of Linux, Endpoint Security, Experienced with DFS

Essential Character Attributes
To be a self-motivated honest individual
An effective communicator & listener
Ability to collaborate and adapt successfully
Self-confident, demonstrating a proactive attitude & approach

Essential for the Role
A degree level education and/or Microsoft or other relevant certifications
Azure & Office 365 certifications

Desirable for the Role
ISO 27001 Knowledge / Awareness
Experienced with SIEM
API usage
Scripting PowerShell, Python etc.
Microsoft Volume Licensing
SFTP Systems
SharePoint

PHD can offer flexible working hours, WFH, Hybrid working option, to be discussed upon application.

Supports The Bike to work scheme

A Good Company Pension

Up to 30 days holiday with length of sevice, plus bank holidays + extra days for attentance and birthday.

On site parking
#J-18808-Ljbffr

Apply
Create E-mail Alert
Job alert activated
Saved
Save
Similar job
Finance systems administrator
London
Energy Vault
Systems administrator
Similar job
Sage x3 systems administrator
London
Systemsaccountants
Systems administrator
Similar job
Apprenticeship and learner management system administrator
London
Harris Federation
Systems administrator
See more jobs
Similar jobs
It jobs in London
jobs London
jobs Greater London
jobs England
Home > Jobs > It jobs > Systems administrator jobs > Systems administrator jobs in London > Senior Systems Administrator

About Jobijoba

  • Career Advice
  • Company Reviews

Search for jobs

  • Jobs by Job Title
  • Jobs by Industry
  • Jobs by Company
  • Jobs by Location
  • Jobs by Keywords

Contact / Partnership

  • Contact
  • Publish your job offers on Jobijoba

Legal notice - Terms of Service - Privacy Policy - Manage my cookies - Accessibility: Not compliant

© 2025 Jobijoba - All Rights Reserved

Apply
Create E-mail Alert
Job alert activated
Saved
Save