Infrastructure Engineer – 11005SR

Proactive.IT Appointments Limited; London; Hybrid; GBP 55,000 - 65,000; Full time

Job summary

An established industry player is seeking a talented Infrastructure Support Specialist to join its dynamic Wintel team. This role offers the chance to deliver critical infrastructure projects and support business transformation. You will provide 3rd line technical support, implement infrastructure upgrades, and act as a subject matter expert. The ideal candidate will have strong knowledge across various infrastructure technologies, including VMware and Azure, and will thrive in a collaborative environment. If you're passionate about shaping IT infrastructure and driving meaningful change, this opportunity is for you.

Qualifications

• Strong knowledge across a range of infrastructure technologies.
• Experience with VMware and Hyper Converged Infrastructure (Nutanix preferred).
• Proficiency in Azure and Microsoft 365 services.

Responsibilities

• Deliver 3rd line technical support across a broad infrastructure estate.
• Plan and implement infrastructure upgrades, migrations, and improvements.
• Act as a subject matter expert for 1st and 2nd line support teams.

Skills

Infrastructure technologies

VMware

Hyper Converged Infrastructure

Azure

Microsoft 365 services

Windows Server

Group Policy

Windows 10/11

Citrix

MS SQL

Ivanti

SCCM/Configuration Manager

Education

Certifications in Microsoft

Certifications in VMware

Certifications in Cisco

ITIL Foundation or equivalent experience

Job description

11005SR
£55k – 65k per year

Infrastructure Support Specialist (3rd Line)

Location: London – Hybrid (3 days on-site per week)
Type: Full-Time, Permanent

Do you thrive in high-pressure environments and enjoy solving complex technical challenges? Are you passionate about shaping IT infrastructure and driving meaningful change across systems and services? If so, we want to hear from you.

A leading organisation is seeking a talented Infrastructure Support Specialist to join its dynamic Wintel team. You’ll be part of a high-performing IT department, supporting, maintaining, and evolving a sophisticated technology landscape. This is your chance to play a key role in delivering critical infrastructure projects and supporting business transformation from the ground up.

What You’ll Do:

• Deliver 3rd line technical support across a broad infrastructure estate.
• Plan and implement infrastructure upgrades, migrations, and improvements.
• Act as a subject matter expert for 1st and 2nd line support teams, offering guidance and escalation support.
• Apply best practices in system configuration, security, and performance.
• Administer and support services including virtualisation, cloud platforms, and enterprise Windows environments.
• Contribute to ongoing project work and small-scale changes in line with structured change management.
• Maintain accurate technical documentation and promote knowledge sharing across the team.

What You’ll Bring:

• Essential Technical Expertise:
• Strong knowledge across a range of Infrastructure technologies.
• Experience with VMware and Hyper Converged Infrastructure (Nutanix preferred).
• Proficiency in Azure and Microsoft 365 services (including Entra ID, device management, and SAML auth).
• Advanced skills with Windows Server, Group Policy, and Windows 10/11.
• Desirable Skills:
• Citrix (Citrix DaaS/Cloud), MS SQL, Ivanti, SCCM/Configuration Manager.
• Certifications & Methodologies:
• Certifications in Microsoft, VMware, Cisco (at least two preferred).
• ITIL Foundation or equivalent experience (especially in Service Operation and Transition).

Who You Are:

A confident communicator, able to simplify technical concepts for non-technical audiences.

A proactive, analytical thinker with strong problem-solving capabilities.

Someone who thrives on collaboration but can also take the lead and work independently.

Detail-oriented, customer-focused, and always looking for ways to improve systems and processes.

This is more than a support role—it’s an opportunity to become a key player in delivering innovation and reliability across enterprise IT systems. Whether you’re continuing your infrastructure journey or seeking a new challenge, your ideas and expertise will be valued and respected.

We actively welcome applicants from all backgrounds and levels of experience. Even if you don’t tick every box, if you believe you can make a difference, we’d love to hear from you.

Due to the volume of applications received for positions, it will not be possible to respond to all applications and only applicants who are considered suitable for interview will be contacted.

Proactive Appointments Limited operates as an employment agency and employment business and is an equal opportunities organisation

We take our obligations to protect your personal data very seriously. Any information provided to us will be processed as detailed in our Privacy Notice, a copy of which can be found on our website http://proactive.it/privacy-notice/