Lead Infrastructure Design Engineer

IRIS Software Group; Slough; On-site; GBP 60,000 - 75,000; Full time

Job summary

IRIS Software Group is seeking a Lead IT Infrastructure Design Engineer to design and deliver infrastructure solutions crucial for the company's growth. This mid-senior level role combines technical leadership in a collaborative environment and offers opportunities for career development along with a range of employee benefits.

Benefits

Career development opportunities

Flexible working

Collaborative team environment

Qualifications

• Strong experience in infrastructure roles and proven ability to lead large-scale projects.
• Hands-on knowledge of cloud services and various technologies.
• Collaborative mindset with clear communication skills.

Responsibilities

• Lead the design and rollout of infrastructure solutions across various domains.
• Define technical standards and ensure delivery excellence.
• Mentor team members and act as a senior escalation point for issues.

Skills

Leadership

Communication

Technical knowledge

Tools

Windows Server

Active Directory

Azure

Hyper-V

PowerShell

Microsoft Exchange

Job description

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Just a regular guy that hires top talent for one of UK’s largest privately held software companies.

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

At IRIS, 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.

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

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 growth

A strategic role with plenty of scope to innovate and improve

Flexibility in how you approach and deliver your work

A collaborative, knowledgeable team that values technical leadership

A 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”:

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

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.

A deeper discussion about your experience and how you’d approach the role.

Meet 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.

Seniority level

• Seniority level

  Mid-Senior level

Employment type

• Employment type

  Full-time

Job function

• Job function

  Information Technology, Engineering, and Project Management

• Industries

  Software Development

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