Senior IT Systems Administrator — Bristol On-site

Pioneering People; West of England; Presencial; GBP 50.000 - 60.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Salary 50–60k GBP

28 days holiday plus bank holidays

Annual bonus

Pension 8%

Private healthcare

Life insurance

Enhanced parental leave

Flexible working

Career progression

Descripción de la vacante

TwinStream is seeking a Senior IT Systems Administrator to own and optimise the corporate IT estate from Bristol (on-site). You will drive improvements, automate tasks and support colleagues as part of a security-focused, resilient IT operation.

Lead incident resolution, patching, backups and continuity planning while mentoring staff and coordinating with suppliers to deliver reliable services.

Formación

• Strong Microsoft 365 administration and optimisation skills.
• Microsoft Entra ID, including SSO, CA, Identity Governance and Zero Trust principles.
• Corporate networking: firewalls, switching, wireless, VPN, DNS and DHCP.
• Managing Windows, Linux and mobile devices, including endpoint management and secure configuration.
• PowerShell or similar scripting tools to automate tasks.
• Cloud services, SaaS applications, collaboration tools and development-support services.
• IT security, vulnerability management, patching, monitoring, backups and disaster recovery.
• Incident management, root-cause analysis and security incident response, ideally involving SIEM tools.
• IT service management covering incidents, problems, changes and assets.
• Strong troubleshooting, risk assessment, prioritisation and communication skills.
• Experience guiding colleagues, maintaining technical documentation and working with suppliers.

Responsabilidades

• Managing the performance, resilience and lifecycle of cloud services, infrastructure, devices and applications.
• Administering Microsoft 365, Entra ID, identity and access management, endpoint security and corporate SaaS applications.
• Maintaining corporate networks, including firewalls, switches, wireless, VPN, DNS and DHCP.
• Implementing configuration changes, integrations and automation to improve efficiency.
• Monitoring service health, capacity, performance and security, addressing risks and vulnerabilities.
• Leading complex incident resolution, root-cause analysis and security investigations.
• Coordinating patching, upgrades, backups, recovery testing and business continuity arrangements.
• Maintaining technical documentation, operational procedures, asset records and IT service-management standards.
• Mentoring colleagues, working with suppliers and stakeholders, and recommending improvements.

Conocimientos

Microsoft 365 admin

Entra ID

Networking

Windows and Linux

PowerShell

Cloud services

IT security

Incident management

IT service management

Documentation

Educación

ITIL Foundation

Herramientas

Intune

Landscape

JumpCloud

Atlassian tools

Descripción del empleo

TwinStream is seeking a Senior IT Systems Administrator to own and optimise the corporate IT estate from Bristol (on-site). You will drive improvements, automate tasks and support colleagues as part of a security-focused, resilient IT operation.

Lead incident resolution, patching, backups and continuity planning while mentoring staff and coordinating with suppliers to deliver reliable services.