Lead IT Infrastructure Design Engineer

TieTalent; Slough; On-site; GBP 60,000 - 90,000; Full time

Job summary

Join a leading technology company as a Lead IT Infrastructure Design Engineer. In this high-impact role, you'll shape infrastructure solutions that support essential services across the UK. Your leadership will define technical standards and influence infrastructure roadmaps, while working collaboratively with a knowledgeable team to drive innovation and improvements.

Benefits

Great range of employee benefits

Opportunities for career development

Flexible working approach

Qualifications

• Strong experience in infrastructure roles with increasing responsibilities.
• Proven ability to lead and deliver large-scale infrastructure projects.
• Hands-on knowledge of key infrastructure technologies.
• Collaborative mindset with strong influence skills.

Responsibilities

• Lead the design and rollout of infrastructure solutions.
• Translate business challenges into secure scalable solutions.
• Define technical standards and drive service improvements.
• Mentor team members to enhance technical capabilities.

Skills

Leadership

Communication

Problem Solving

Collaboration

Tools

Windows Server

Active Directory

Azure (IaaS & PaaS)

Hyper-V

Veeam

PowerShell

Microsoft Exchange

Job description

Shape the backbone of our tech. Lead with purpose. Build for impact.

At IRIS Software Group, our technology powers schools, businesses, and organisations that keep the UK running — and we’re growing fast. That’s why we’re on the lookout for a Lead IT Infrastructure Design Engineer who’s ready to design, deliver, and future-proof infrastructure solutions that support our bold ambitions.

This isn’t a support role. It’s your chance to set the standards, drive delivery, and bring smart, scalable ideas to life. You’ll work at the heart of our Enterprise Services team, shaping the technology that underpins everything we do.

What Will You Be Doing?

This is a hands-on, high-impact role where your ideas, leadership, and technical know-how will shape how our infrastructure evolves.

You’ll:

Lead the design and rollout of infrastructure solutions across compute, identity, messaging, storage, cloud and beyond

Translate business challenges into smart, secure, scalable solutions

Influence and shape our infrastructure roadmap — and the direction of our platforms

Define technical standards, drive improvements, and ensure delivery excellence

Act as a senior escalation point for complex issues (think root cause, not firefighting)

Mentor team members and help level up our technical capability

Discover and introduce new tools, platforms or approaches to keep us ahead

Create clean, clear documentation that keeps everyone on the same page.

Who Are We Looking For?

We’re after someone who brings both technical depth and a sharp sense of how to align infrastructure to business goals.

You’ll thrive in this role if you have:

Strong experience in infrastructure roles with growing responsibility

Proven ability to lead and deliver large-scale infrastructure projects

Hands-on knowledge of Windows Server, Active Directory, Azure (IaaS & PaaS), and Entra ID

Familiarity with Hyper-V, Veeam, PowerShell, and Microsoft Exchange (on-prem & online)

A solid grasp of networking and security principles

Experience shaping technical standards and driving service improvements

A collaborative mindset with the confidence to lead conversations and influence decisions

Clear communication skills — written, verbal, and everything in between

Why Apply?

This role is all about shaping the internal systems and infrastructure that support how our business operates. From platform stability to service delivery, your work will have a lasting impact on how our teams and technologies perform — giving you real influence where it matters most.

This position offers:

The opportunity to lead on key infrastructure initiatives that support business growthA strategic role with plenty of scope to innovate and improveFlexibility in how you approach and deliver your workA collaborative, knowledgeable team that values technical leadershipA great range of employee benefits and opportunities for career development.

What Can You Expect From Our Application Process?

We know applying for a new role can feel daunting—so we’ve kept our process simple, supportive, and designed to help you shine. Here’s what happens once you hit “apply”:

Apply onlineSubmit your CV and a few details about yourself. No long forms—just what we need to get started and understand your background.

Initial Interview (plus Online Assessments)A friendly chat with our Talent team and two short assessments (CCAT + EPP).

The CCAT is a quick 15-minute timed test—best completed somewhere quiet with a pen and paper.

The EPP is untimed, giving you space to work through it comfortably.

Hiring Manager InterviewA deeper discussion about your experience and how you’d approach the role.

Panel InterviewMeet a few key colleagues, share your thinking, and explore how we’d work together.

Ready to lead and design the infrastructure that powers real change?

Apply today and bring your ideas to a role where they’ll really make an impact