Network & Infrastructure Administrator

HC-One; Tees Valley; On-site; GBP 38,000 - 48,000; Full time

Job summary

HC-One is seeking a Network / Infrastructure Administrator to manage Active Directory and Microsoft Entra ID, ensuring secure, reliable services across a national care home portfolio. The role collaborates with the Head of IT Infrastructure, IT Support team and MSP to maintain secure identity and access controls while supporting new sites and technology changes.

You will monitor performance, resolve complex identity and connectivity issues, and contribute to disaster recovery, change governance

Qualifications

• Extensive experience in network and infrastructure administration, including AD and Entra ID.
• experience managing identity lifecycle, security groups, policies and privileged access.
• Experience with hybrid Microsoft environments (Microsoft 365) and directory synchronisation.
• Strong networking fundamentals: WAN, LAN, Wi‑Fi, DNS, DHCP, firewalls.

Responsibilities

• Manage day-to-day administration of Active Directory and Microsoft Entra ID.
• Escalation point for IT Support; resolve identity, connectivity and end-user issues.
• Monitor network and infrastructure performance; support new site openings.
• Contribute to disaster recovery planning, governance, audit, and change management.
• Coach IT Support Analysts and share expertise.

Skills

Network administration

Active Directory

Microsoft Entra ID

Identity lifecycle

Group policies

Conditional access

Privileged access

Hybrid Microsoft 365

DNS

DHCP

Firewalls

Security governance

Stakeholder management

Second-line support

Tools

Microsoft 365

Directory synchronisation

Job description

About The Role

Help keep critical technology services secure, connected and running smoothly across a national care home portfolio. Joining us means becoming part of a forward-looking care organisation with a strong, long-term commitment to the success of every home. Supported by substantial, planned investment, we provide the resources and stability needed to deliver reliable, secure and resilient technology services across a growing national care home portfolio. This is an office-hours role working 37,5 hours per week, with occasional travel to care homes and regional offices.

Role Overview

As a Network / Infrastructure Administrator, you'll be the organisation's in-house technical specialist for identity, access and infrastructure administration. Working closely with the Head of IT Infrastructure, the IT Support team and managed service provider (MSP), you'll help ensure secure, reliable technology services while providing expert technical support across the business.

Responsibilities

This is a specialist technical role responsible for supporting the organisation's hybrid infrastructure environment and acting as the key internal contact for identity, network and infrastructure administration. You'll manage the day-to-day administration of Active Directory and Microsoft Entra ID, overseeing user accounts, access permissions, security groups, group policies and the wider identity lifecycle. Acting as the technical escalation point for the IT Support team, you'll resolve complex issues relating to identity, connectivity and end-user technology while working closely with the MSP on infrastructure-related matters. You'll monitor network and infrastructure performance, support new site openings and technology changes, and help ensure the organisation maintains secure, well-governed identity and access controls. You'll also contribute to disaster recovery planning, technical governance, audit activity and change management, helping maintain resilient, compliant technology services across the organisation. Alongside your technical responsibilities, you'll coach IT Support Analysts, sharing your expertise and helping strengthen technical capability across the wider team.

About You

You’ll be an experienced infrastructure professional with strong technical knowledge of Microsoft identity technologies and hybrid IT environments. You'll enjoy solving complex technical problems and be confident acting as the bridge between internal teams and external technology partners. Comfortable working across multiple technologies, you'll combine excellent analytical skills with a methodical approach to troubleshooting, ensuring issues are resolved efficiently while maintaining high standards of security and governance. You’ll'll be collaborative, approachable and keen to share your knowledge, supporting colleagues through coaching and technical guidance while contributing to continuous improvements across the IT function.

Essential Skills

• Significant experience in network and infrastructure administration, with strong expertise in Active Directory and Microsoft Entra ID.
• Experience managing identity lifecycle processes, security groups, group policies, conditional access and privileged access management.
• Experience supporting hybrid Microsoft environments, including Microsoft 365 and directory synchronisation.
• Strong understanding of networking fundamentals, including WAN, LAN, Wi‑Fi, DNS, DHCP and firewalls.
• Experience working with managed service providers or third-party IT partners within a hybrid support model.
• Experience providing second‑line technical support and resolving complex infrastructure and identity issues.
• Strong understanding of access governance, audit requirements and security best practice.
• Excellent communication, problem‑solving and stakeholder management skills.

Desirable

• Microsoft, networking or cyber security certifications such as MS-102, AZ-104, Network+ or Security+.
• Knowledge of Cyber Essentials, DSPT, GDPR and wider cyber security frameworks.
• Experience within healthcare, social care or another highly regulated multi‑site environment.

Additional Information

An Enhanced DBS check and DVLA licence check are required for this position. As with all colleagues, you'll be expected to comply with our policies relating to health and safety, infection prevention and control, safeguarding and all relevant regulatory requirements. From time to time, you may be asked to undertake other duties appropriate to the role, and the responsibilities outlined above may be reasonably reviewed and updated following consultation to reflect business needs.

Application closing date

Monday 31st August 2026