Senior Cloud & Identity Platform Architect

Colt Technology Services; England; Presencial; GBP 70.000 - 100.000; Jornada completa

Descripción de la vacante

Colt Technology Services is seeking a Senior IT Infrastructure Engineer to design, implement, and operate secure M365, Azure, Exchange Online, and Identity platforms. You will deliver automated, resilient services and work closely with Architecture, Security, Development, and Operations teams to ensure solutions are integrated and run reliably.

The role emphasizes automation, governance, and on-call support, requiring deep technical expertise and ability to translate architectures into scalable

Formación

• Extensive experience in engineering and supporting Exchange Online, Identity, workplace, and Azure Cloud.
• Strong expertise in Microsoft 365 configuration, administration, and security.
• Experience with Defender for Office 365 and Exchange Online Protection.
• Understanding of email authentication technologies including SPF, DKIM, and DMARC.
• Experience with Microsoft Purview, Compliance Center, and retention policies.
• Manage mail flow, connectors, transport rules, accepted domains, and email security policies.
• Perform tenant-level Exchange administration using Exchange Admin Center (EAC) and PowerShell.
• Azure cloud engineering (deployments, governance, connectivity).
• Identity and access (Active Directory, Entra ID, authentication, access control).
• Automation and operational tooling (PowerShell, scripts, IaC concepts).
• Strong troubleshooting and problem-solving capability.
• Experience working in enterprise-scale environments.

Responsabilidades

• Engineer and supports solutions across M365, Azure, Exchange Online and Identity, ensuring platforms are secure, resilient, automated, and operationally effective.
• Implement and operate infrastructure and platform solutions aligned to architectures and standards.
• Build, configure, and operate end-to-end cloud, M365, and identity solutions.
• Act as senior escalation points for engineering and operational issues.
• Deliver and operate roadmap initiatives and platform improvements; support changes.
• Work with Architecture, Security, Development, and Infrastructure teams to deliver integrated solutions.
• Participate in an on-call rota for priority incident support.

Conocimientos

Exchange Online

Identity (Entra ID)

Azure Cloud

Microsoft 365 admin

PowerShell

Automation tooling

IaC concepts

Troubleshooting

Enterprise-scale

Security configuration

Herramientas

Defender for Office 365

Exchange Online Protection

Microsoft Purview

Descripción del empleo

Colt Technology Services is seeking a Senior IT Infrastructure Engineer to design, implement, and operate secure M365, Azure, Exchange Online, and Identity platforms. You will deliver automated, resilient services and work closely with Architecture, Security, Development, and Operations teams to ensure solutions are integrated and run reliably.

The role emphasizes automation, governance, and on-call support, requiring deep technical expertise and ability to translate architectures into scalable