Senior Infrastructure Engineer

Here at Acorn we are looking for a passionate Senior Infrastructure Engineer to join us in Hands-on multi-disciplined technical support role within the IT infrastructure support and 3rd line escalation team. Within this team you will be supporting the Infrastructure Support Manager in driving delivery of robust, performant, resilient and recoverable infrastructure and systems, a mixture of on-premises and Azure.

You will be supporting the technical development of the internal infrastructure team, maintaining infrastructure best practice and standards as well as ensuring all platforms are secure and meet all legislative compliance requirements.

Role: Senior Infrastructure Engineer

Location: Liverpool City Centre HQ

Salary: £50,000–£58,000 depending on experience

What you will be doing:

You will be in a hands-on technical lead role within the infrastructure team, supporting the promotion of technical excellence and quality across the team and leading knowledge transfer.

Use your expertise of classic infrastructure disciplines, technologies & best practices to drive the deployment and management of the on-premises infrastructure, ensuring all infrastructure assets and interfaces have appropriate monitors, alerts, backups and recovery plans in place.

Although this role does not directly manage the Azure platform, it is expected that this role will manage aspects with the platform, requiring knowledge and close collaboration with the cloud platform team

Use your experience to help the delivery of best-of-breed 3rd line support function, ensuring tickets and issues raised are managed efficiently and to expected quality, within SLA.

Be continually aware of enhancements available within current deployed infrastructure solutions as well as any shifts in technology & enhancements benefitting the business.

Work cross functionally with our Project, Development, Cloud Platform, and SecOps teams for new deployments, providing continual management and maintenance.

Supporting the development of disaster recovery plans and maintaining operational resilience within the infrastructure remit.

Lead technical evaluation of products within the infrastructure domain, participating in the deployment & implementation of the infrastructure technologies.

Contribute to the technical design of best of breed infrastructure solutions, exploiting industry best practice.

Work with the SecOps engineers to remediate any vulnerabilities identified within remit.

Critical Competencies:

Minimum 4 years’ Infrastructure experience, with minimum of 1yrs in a similar senior capacity or performing senior duties within a team of engineers with a support background.

Excellent Active Directory and associated services skills

Experience with broad variety of classic infrastructure disciplines & technologies; Network, Windows Server, Storage, Virtualisation, Security and Mail and associated services and functions

Experience of team supervision, or mentoring would be an advantage.

High level of knowledge with Office 365 suite of applications, security, and tools

Excellent Microsoft Exchange skills, ideally in Hybrid solution

Previous experience in designing and leading implementation of infrastructure solutions.

Experience using infrastructure auto-deployment and scripting techniques; PowerShell, Ansible

Experience of the development of design and documenting technical solutions

Proactive and logical approach to fault identification, troubleshooting and problem solving.

Working knowledge of ITIL

What we are looking for:

Network technologies; All LAN/WAN components, routing and protocols

Windows Server and storage architecture solutions

MS Exchange and messaging techniques and troubleshooting, ideally in hybrid setup

An understanding of cloud computing platforms, principals, and services

PowerShell or similar Scripting solutions

Zero-trust solutions, VPN, SSO setup, PIM and MFA solutions

Perimeter and Endpoint Security solutions, SWEG, Web Access, Anti-Malware config

Microsoft Windows Server OS, updating, upgrading, Linux experience an advantage

Backup & Recovery design and testing

Mitigating infrastructure and operating system security vulnerabilities

MS Office 365 platform support; SharePoint, OneDrive, Teams, Intune management

Working within a ticket management system with SLA and KPI adherence

Any certification or working experience supporting or implementing several of the infrastructure technologies listed below would be an advantage.

Linux Server configuration and support

MS SQL server and support

Deploying and supporting cloud infrastructure, any platform an advantage

Web application development techniques and tools, XML, .Net framework, and development lifecycle, to provide adequate support to the developer teams

Jira helpdesk and confluence

Terraform IaC deployments

Remote Desktop RDS/AVD/VDI environments

Supporting and securing Macbook devices

IP Telephony design, implementation and/or support

Why Join Us:

A modern tech stack and a culture that values craftsmanship

A supportive team where you’ll learn from experienced developers and designers

Opportunities for training, mentorship and career progression

Freedom to experiment, ask questions and influence how we work

Top-tier tools and a workspace built for creativity and collaboration

Team and Culture

You’ll join a friendly, collaborative squad that brings together designers, engineers and product thinkers. We work closely, share ideas openly and always look for ways to get better.

We believe in ownership, curiosity and constant learning. You’ll be encouraged to ask questions, try new things and take on challenges that stretch your skills.

If you’re looking for a place to grow, learn from others and build products you can be proud of, this is the team for you.

Grow with Acorn

At Acorn Insurance, we’re proud of our Liverpool roots — and even prouder of how far we’ve come. As part of the Acorn Group, we bring over 40 years of specialist insurance expertise to the table. From humble beginnings, we’ve grown into a national leader, now employing 1,700+ people across the UK and reached a milestone £750 million in total value of insurance policies written in 2024.

We’re growing fast, with new opportunities emerging every week. That growth is largely due to the values we share:

• We run through walls for our customers and each other

• We challenge the status quo

• We succeed when we help those around us succeed

• We decide quickly when the smart thing to do is use our judgement

Benefits:

• 35 days’ holiday (including bank holidays) with additional buy/sell options

• 24/7 mental health support & free counselling available

Grow with us: Through career fairs, leadership programs, and learning on the go!

• Flexible benefits, including early access to salary via our internal platform

• Hybrid working options to support work-life balance and individual needs

• Recognition awards, social events & more

Our Commitment to our colleague’s:

These aren’t just words — they’re the principles we live by. And we’re proud to back them up with real action, earning recognition and accreditation from leading organisations that share our commitment to people and growth:

• Mindful Employer – championing mental health and wellbeing

Disability Confident Level 1 & 2 – creating accessible, inclusive opportunities

• Menopause Friendly accredited – supporting every stage of life

•️ Armed Forces Covenant signatory – honouring those who serve

• Great Places to Work 2024/25 – fostering an engaging and positive workplace culture

• Best Place to Work for Development – proud to be investing in people’s future

•• Best Place to Work for Women – breaking down barriers to women's career progression

If you’re looking for a company with a strong culture, real career progression, and a people-first approach — all rooted in the heart of Liverpool — Grow with Acorn.

A Few Things to Know Before You Apply

We’re really excited that you’re considering joining Acorn! To help everything go smoothly, here are a couple of things to keep in mind:

Checks & Clearances

All roles at Acorn are subject to DBS and financial checks. Any offer we make will be conditional until these are completed to a satisfactory standard.

Visa Requirements

Because our training is quite comprehensive, we can only consider applicants who have at least one year remaining on their Graduate or Post-Study Work visa. At the moment, we’re not able to offer visa sponsorship.

We’re Here to Support You

We’re committed to creating an inclusive, supportive workplace where everyone can flourish. If you need any adjustments during the recruitment process—or once you’re part of the team—just let us know. Whether it’s flexible hours, adapted equipment, or a bit of extra support, we’ll work with you to make sure you can do your best work.

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