Senior Azure & Microsoft 365 Platform Architect - London - Hybrid
Requirements
Requires strong hands-on experience with Azure and Microsoft 365, including platform engineering, tenant security, identity governance, networking, databases, disaster recovery, monitoring, Terraform, Azure DevOps, PowerShell, and Azure Policy. Candidates should have experience supporting business-critical production environments and be able to document findings, work independently, challenge providers constructively, and communicate clearly.
Job Description
We are looking for hands-on Senior Azure & Microsoft 365 Platform Architect.
The successful candidate will act as the technical owner of the Azure platform, working closely with external development and engineering partners. They will ensure that deployed systems align with the intended architecture, support secure and stable operations, and improve ownership across Identity and Access Management, Disaster Recovery, and Monitoring and Observability.
Main Responsibilities
- Oversee Azure subscriptions, landing zones, networking, compute, databases and Microsoft 365 tenant configuration, including dependencies between current and legacy platforms
- Validate deployed infrastructure against documented architecture and security requirements, including ingress, DNS, certificates and platform access controls
- Review Entra ID, Conditional Access, authentication flows, RBAC, PIM, emergency access, service identities and guest/B2B and client-facing identities. Ensure least-privilege access, effective joiner/mover/leaver processes, recurring access reviews and removal of orphaned identities
- Reconcile permissions and access dependencies across Microsoft 365, Azure, Azure DevOps and applications; oversee Key Vault, secrets, certificates and rotation
- Assess and improve disaster recovery, including recovery units, shared dependencies, RTOs/RPOs, backups, database replication, point-in-time restoration and multi-region design. Run restore and failover exercises covering invocation, validation and return to primary, maintaining runbooks, responsibilities and test evidence
- Improve service-health monitoring using Azure Monitor, Log Analytics, KQL and Application Insights. Map services to monitoring signals, tune alerts for actionability, routing and ownership, and distinguish customer-facing status from operational diagnostics
- Troubleshoot production issues across infrastructure, applications, APIs and integrations, maintaining practical runbooks and technical documentation
- Maintain Terraform configurations, modules and state; detect configuration drift, support Azure DevOps pipelines and permissions, and develop PowerShell scripts and automation
- Apply Azure Policy and landing-zone guardrails, maintain tagging, naming and subscription standards, and improve cost management, including telemetry retention and access
- Act as the internal technical counterpart to external providers, constructively challenge proposed changes and communicate gaps, risks and recommendations clearly to technical and non-technical stakeholders
Essential
- Strong hands-on experience with both Microsoft Azure and Microsoft 365, including Azure platform engineering, Microsoft 365 tenant administration and security configuration, Active Directory servers, and email security/spam filtering (Mimecast)
- Experience spanning cloud architecture, engineering and operations in business-critical production environments
- Strong knowledge of Entra ID, Conditional Access, Azure RBAC, PIM, Key Vault and identity and access governance across connected platforms
- Practical knowledge of Azure networking, ingress, compute and databases, including backup, replication and restoration
- Experience assessing and validating disaster recovery, including dependency mapping, RTOs/RPOs, recovery procedures, restore testing and regional failover
- Experience with Azure Monitor, Log Analytics, KQL and Application Insights, including service-health monitoring, alert tuning and troubleshooting distributed, API-driven services
- Practical Terraform experience covering modules, state management and drift detection, alongside Azure DevOps CI/CD, access controls, PowerShell scripting and Azure Policy
- Strong technical documentation and runbook-development skills, with the ability to distinguish verified findings from assumptions and recommendations
- Ability to work independently, exercise sound technical judgement, collaborate with and challenge external providers, and communicate clearly with technical and non-technical stakeholders
- Familiarity with Bicep or ARM templates and cloud cost optimisation / FinOps
- Experience supporting security audits
- Familiarity with AI tools and their practical application in Microsoft 365 or IT operations
- Experience working with multiple external technology suppliers
You would be part of an international team of people, working on the latest technology and at the forefront of automation and innovation. We offer:
- Hybrid working: Flexibility to combine office and remote work
- Challenging technical projects: Hands-on work with modern technologies and opportunities to contribute to meaningful improvements
- Competitive compensation: A salary that reflects your skills and experience
- Health coverage: A medical insurance package
- Paid time off: Generous leave to rest and recharge
- Learning and development: Training opportunities to support your career growth
- Certifications and bonuses: Company-funded professional certification exams and bonuses
Skills
About Portfolio BI
PBI combines technology, data, and expertise to deliver stable, scalable operating environments for the alternative investment industry. We connect workflows, data, and infrastructure into a single operating model, underpinned by governance and enhanced by AI to deliver control, efficiency, and insight. Built for hedge funds, private credit and private markets managers, asset managers, and institutional firms, we address the industry's core challenges, fragmented systems, untrusted data, and growing regulatory complexity, as one connected problem. We support hundreds of alternative investment firms, powering operations across $1 trillion+ in AUM, with 24/7 global infrastructure, 20+ years of domain expertise, and a personalized implementation plan for every firm we serve. New York - London - Belgrade
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