IT Infrastructure Engineer in Sheffield

Location: Any UK Site

Our Vision & Why It Matters

At Alexander Dennis, our vision is to lead the evolution of sustainable on-road mass transportation and mobility. We design, deliver, and support market-leading buses and coaches that help reduce emissions, improve air quality, and keep communities connected. Every role contributes to that mission whether you’re engineering, driving sales, improving production, or supporting our customers.

What You’ll Do

As a core member of the Infrastructure team, you’ll be responsible for the design, implementation, and ongoing support of our on-premise and cloud infrastructure. You’ll work closely with the IT Infrastructure Manager and Cyber Security Manager to ensure our systems are not only high-performing and resilient, but also secure by design. Your day-to-day will include:

• Managing and maintaining servers, storage, networking, and virtualisation platforms
• Leading patch management, system upgrades, and infrastructure automation initiatives
• Supporting cloud infrastructure (Azure, M365) and hybrid environments
• Implementing hardening standards and security controls across infrastructure
• Familiarity with SIEM, EDR, and other security technologies
• Collaborating on incident response, vulnerability remediation, and cyber investigations
• Contributing to infrastructure and security roadmaps, policies, and best practices

What We’re Looking For

We’re looking for a proactive and technically skilled IT Infrastructure Engineer to help us build, secure, and maintain the systems that keep our business running safely and efficiently.

• Strong experience in infrastructure engineering across Windows environments
• Strong experience in implementing and managing technologies such as Active Directory, Windows Servers, MS-SQL, Citrix, Cisco switching, firewalls, DMZ, and cloud platforms like AWS
• Solid understanding of networking, firewalls, and cloud platforms (Azure preferred)
• Hands-on experience with patching, monitoring, backup, and disaster recovery
• Experience with cyber security principles, tools, and frameworks
• A proactive mindset with a passion for continuous improvement and automation

Bonus if you have:

• Experience managing Microsoft 365 environments, email filtering, large file transfer applications, and a passion for building new processes that make infrastructure more secure and resilient.

What We Offer

You’ll be part of a collaborative, forward-thinking team where infrastructure and cyber security go hand-in-hand. We offer a flexible working environment, opportunities for professional development, and the chance to make a real impact on the resilience and security of the Alexander Dennis technology landscape.

Because we know that to deliver on our vision, people have to feel supported and inspired:

• Impact: Be part of something that’s changing cities, improving air quality, helping public transport evolve.
• Development & Growth: Training programmes, mentorship, opportunities to take on new roles, broaden skills.
• Culture & Belonging: An inclusive environment; your voice matters; we treat people fairly.
• Perks & Benefits: Competitive salary, pension, wellbeing support, cycle to work scheme, enhanced maternity and paternity benefits.

Our Values – What Guides Us

These are more than words on a page, they shape how we work, what we stand for, and how we build trust with our customers, communities, and each other.

• Safety: The health and wellbeing of our team members, and the safety of our products, are our top priority.
• Quality: We strive for excellence in our products, services, and all that we do.
• Integrity: We act with honesty, transparency and integrity, treating each other with respect in a diverse, equitable and inclusive workplace.
• Accountability: We take responsibility for our actions, seeking to build trust and earn a reputation for excellence and reliability.
• Teamwork: We work with our team members, our supplier partners, and our customers to pursue mutual benefits.
• Sustainability: We seek long term success for our business, our communities, and the environment through responsible sourcing, lean manufacturing, and sustainable operations.

How to Apply

If you see yourself growing with Alexander Dennis and contributing to our vision, we’d love to hear from you. Please complete our online application form and attach your CV! We care deeply about being inclusive and we encourage applications from people with diverse backgrounds and experiences.