Workplace IT Infrastructure Engineer

Reiss Limited; Greater London; On-site; GBP 80,000 - 100,000; Full time

Job summary

A leading retail company in Greater London is seeking a Workplace IT Infrastructure Engineer to support and evolve their core infrastructure. This role involves ensuring infrastructure stability, security, and availability across various platforms, providing technical leadership during incidents, and administering Active Directory and Microsoft Entra ID. The ideal candidate will demonstrate strong expertise in Windows Server and cloud environments, with a proactive approach to problem-solving. Employees enjoy a competitive salary, bonus, and numerous workplace benefits, including a generous employee discount.

Benefits

Competitive salary

Company bonus

Employee discount

Wellbeing services

Health support plan

Workplace pension contributions

Enhanced parental leave

Electric Vehicle scheme

Cycle to Work programme

Season ticket travel loan

Qualifications

• Strong technical expertise in Windows Server, virtualisation, storage, and hybrid/cloud infrastructure.
• Experience administering Active Directory and Microsoft Entra ID (Azure AD).
• Ability to resolve complex infrastructure issues independently.
• Practical knowledge of networking and firewall technologies.
• Skilled in infrastructure monitoring and logging tools.

Responsibilities

• Design, implement, and maintain enterprise infrastructure services.
• Act as the 3rd line escalation point for complex infrastructure incidents.
• Administer and support Active Directory and Microsoft Entra ID.
• Support foundational network and firewall operations.
• Monitor infrastructure health and performance.

Skills

Windows Server

Virtualisation

Storage

Hybrid/Cloud Infrastructure

Active Directory

Microsoft Entra ID (Azure AD)

Networking

Firewall Technologies

Monitoring Tools

Problem-solving

Job description

What’s the role about?

As our Workplace IT Infrastructure Engineer, you will support, maintain, and evolve the core infrastructure platforms that underpin corporate and retail technology environments at Reiss. You will ensure the stability, security, and availability of infrastructure services across office-based, hybrid, and cloud infrastructure platforms, acting as a 3rd line escalation point for complex infrastructure issues. This hands‑on, delivery‑focused role provides accountability for infrastructure reliability, lifecycle management, and continuous improvement.

You will work closely with the Workplace IT Support Lead, central IT teams, and third‑party partners to deliver resilient, secure, and high‑performing infrastructure services that support Reiss’ operational and technology needs.

Who you are

• Demonstrates strong technical expertise in Windows Server, virtualisation, storage, and hybrid/cloud infrastructure, with the ability to resolve complex infrastructure issues independently.
• Solid experience administering Active Directory and Microsoft Entra ID (Azure AD), managing users, groups, and authentication policies across hybrid environments.
• Confident acting as a 3rd line escalation point, providing technical leadership during critical incidents, outages, and recovery activities.
• Practical knowledge of networking and firewall technologies, able to troubleshoot effectively while collaborating with specialist network teams.
• Skilled in infrastructure monitoring, logging, and alerting tools, using metrics to identify, analyse, and resolve potential issues proactively.
• Methodical, calm, and structured under pressure, with strong problem‑solving skills and a focus on operational resilience.
• Communicates clearly with both technical teams and non‑technical stakeholders, able to explain complex infrastructure concepts in simple terms.
• Proactive and improvement‑focused, identifying opportunities for automation, optimisation, and continuous improvement in infrastructure services.

What you’ll be doing

• Design, implement, and maintain enterprise infrastructure services including servers, virtualisation platforms, storage, identity services, and cloud environments, ensuring performance, resilience, and scalability.
• Act as the 3rd line escalation point for complex infrastructure incidents, providing technical leadership during outages and recovery activities to minimise business impact.
• Administer and support Active Directory and Microsoft Entra ID (Azure AD), including user, group, and device management, synchronisation, and authentication policies.
• Support foundational network and firewall operations, collaborating with specialist network engineers for escalated issues and ensuring secure and reliable connectivity.
• Plan and execute system patching, updates, and infrastructure lifecycle management, including upgrades, migrations, decommissioning of legacy systems, and vendor support renewals.
• Monitor infrastructure health, performance, and capacity using appropriate tooling, analysing logs and metrics to proactively prevent incidents and optimise resources.
• Participate in change management processes, assessing risk, documenting changes, and implementing preventative actions to maintain operational stability.
• Identify and deliver continuous improvement opportunities, including automation, standardisation, and integration with applications and security systems, supporting infrastructure roadmaps and modernisation initiatives.

What we’ll do for you

• Competitive salary and company bonus.
• Up to 65% employee discount.
• Access to exclusive sample sales.
• Aviva DigiCare+ wellbeing services.
• Medicash health support plan.
• Workplace pension contributions.
• Enhanced parental leave policies.
• Electric Vehicle scheme via Octopus Energy.
• Cycle to Work programme.
• Season ticket travel loan.
• Plus further workplace benefits.

If you want to start your story at Reiss as our Workplace IT Infrastructure Engineer, don’t miss out — apply now!

#WeAreReiss

We recognise the importance and power of diversity within our business and, as such, we ensure that our people processes are fair, transparent and promote equality of opportunity for all candidates.

It is our pledge that candidates will not be discriminated against on the grounds of gender, gender identity or expression, pregnancy, marital status, age, race, colour, ethnic background, nationality, disability, sexual orientation, religion, religious or similar belief. Every individual will be treated with respect.

We know that some people won’t apply for a role unless they feel they meet all of the requirements listed. We want you to know that finding people who will add to our inspirational culture and have a learning mindset is incredibly important to us. Even if you feel you don’t tick all the boxes, we’d still like to hear from you.