Company: Remotestar
Location: Cambourne
Posted: May 7th, 2026
Job Title: Active Directory/Identity Access M365 Architect
Location: Remote
Experience: 10–14 Years
Notice Period: Immediate to 20 days
Employment Type:Contract
About the role:
The Microsoft Office 365 Messaging Solution Architect will utilize the expert-
level experience and knowledge of Office 365 architecture, administration,
and best practice recommendations combined with a strong current and deep
experience with Microsoft Exchange Server, Microsoft Office
Communications Server, Microsoft Office SharePoint Server, Active
Directory, and Forefront Identity Manager, to assist True Tandem’s customers
with the design, development, and deployment of messaging and
communication solutions.
Key Functional Areas of Expertise
Technical specialization / External certifications
Build the vital competency centers
Excellent quality of delivery
Build a portfolio of successful projects, references, and credentials
Market research
Technical Expertise
8 to 12 or more years of experience in Architecture and Designing
solutions, Migrating on-prem Exchange to O365/Exchange Online.
Experience working in a Transitional multi-supplier environment within
a large-scale organization. Experience in leading significant technical
solution design and development, leveraging existing tool suites, and
proposing best-of-breed solutions.
Must have strong hands-on experience working on Exchange Online
Experience implementing M365 DLP, Cloud App Security, Defender,
and Conditional Access
Tools Experience like Bittitan, Quest, Avepoint.
To maintain Exchange Hybrid Co-Existence in a multi-Active Directory
Forest/Exchange Org Topology
To maintain Data Sovereignty compliance (GDPR) when Multi-Geo
must have to be used
Migrations from Lotus Notes & GroupWise, along with InterOrg
(Exchange to Exchange) and GSuite/O365 Tenant to Tenant Migrations
Migrations from SharePoint on-premises, Gsuite, and other CMS tools
to SharePoint Online and OneDrive for Business
Must have Architectural understanding of how Third Party Archive &
Journaling Email Data (Enterprise Vault, Mimecast) on legal hold is
migrated appropriately (to maintain Data Immutability)
Must have Architectural Proficiency in integrating Microsoft and non-
Microsoft Mobile Devices/Mobile Application Management & Unified
Endpoint Management solutions with Exchange/Office 365 (Intune,
Airwatch, Workspace One, etc.) as well as other third-party email-aware
apps (Unified Communications/Messaging, Fax, Printer/Scanners)
Must have Architectural Proficiency (Design, Build, Migrate) with
Office 365 Email Protection Mechanisms: Microsoft and non-Microsoft
Email Hygiene/Gateway Products (Proof-Point, Exchange Online
Protection, Mimecast, etc.)
SPF, DKIM, and DMARC (along with ARC) Office 365 Advanced Threat
Protection, Must have an architectural understanding of Microsoft 365
protections (CAS, DLP, ATP, AIP)
Data Loss Prevention, RMS/IRM, Azure Information Protection
(Classification-Labelling & Sensitive Information Types), Office 365
Message Encryption & Transport Rules
Legal/Litigation Holds, Retention, Deletion, and Data Immutability
Understanding of Message Retention and Data Compliance
Requirements
A complete knowledge of Microsoft 365 and the Collaboration
technology stack
Proficiency in all technical aspects of M365 implementation and Azure
Active Directory (AAD) services are required.
Strong communication skills –express key ideas and obtain tangible
feedback from cross-functional team members and stakeholders.
Hand- on experience with implementation, deployment, migration, and
support of core M365 services, including (but not limited to):
Exchange Online – including mailbox migration, EOP, and Exchange
Administration
Preferred Qualifications:
Microsoft 365 Certified: Enterprise Administrator Expert
Microsoft 365 Certified: Messaging Administrator Associate
Experience with Azure Cloud, scripting, and automation