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Senior Infrastructure Engineer

Context Recruitment
London, United Kingdom
3 months ago
Seniority
Senior
Posted
5 Mar 2026 (3 months ago)
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Senior Infrastructure Engineer

Central London - hybrid working

Up to £80,000 PA

A well-established, growing business is seeking an experienced Senior IT Infrastructure Engineer to support both core infrastructure and M&A projects. This is a critical role during a period of ambitious expansion, including multiple acquisitions and integration of new sites. You will ensure seamless IT operations, business continuity and secure, resilient infrastructure across offices and acquired businesses.

Key Responsibilities:

Lead the assessment, integration and consolidation of IT environments during mergers and acquisitions

Manage core office and site networks, including LAN/WAN, VPNs, IP addressing and firewall operations (FortiGate)

Conduct audits of IT infrastructure, cloud environments (Azure, AWS) and enterprise applications (ERP, CRM)

Plan and execute migrations, including tenant-to-tenant Microsoft 365 and Active Directory consolidations

Collaborate with managed service providers and internal teams to maintain high availability, security and compliance

Support business continuity through proactive monitoring, incident management and disaster recovery planning

Mentor and provide technical guidance to team members and act as an escalation point for complex issues

Essential Skills & Experience:

Strong expertise in Azure, Microsoft 365, Windows Server and hybrid cloud environments

Networking: TCP/IP, DHCP, DNS, routing, switching, VPNs, firewall configuration; CCNA/CCNP preferred

Active Directory and identity management, including multi-forest consolidations

Scripting and automation (PowerShell, Python) and Infrastructure as Code (Terraform/ARM templates)

Experience with enterprise applications (ERP, CRM) and M&A IT integration projects

Knowledge of security frameworks and compliance requirements (GDPR, ISO 27001)

Ideally have previous M&A IT integration experience and rapid site deployment.

Familiarity with monitoring tools (Azure Monitor, SolarWinds) and SOC collaboration.

Working hours are Monday - Friday, 09:00 - 17:00.

Initially 4 days per week onsite, dropping to 3 after 3 months

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