M365 Engineer

Methods Business and Digital Technology Limited

Methods is a £100M+ IT Services Consultancy who has partnered with a range of central government departments and agencies to transform the way the public sector operates in the UK. Established over 30 years ago and UK-based, we apply our skills in transformation, delivery, and collaboration from across the Methods Group, to create end-to-end business and technical solutions that are people-centred, safe, and designed for the future.

Our human touch sets us apart from other consultancies, system integrators and software houses - with people, technology, and data at the heart of who we are, we believe in creating value and sustainability through everything we do for our clients, staff, communities, and the planet.

We support our clients in the success of their projects while working collaboratively to share skill sets and solve problems. At Methods we have fun while working hard; we are not afraid of making mistakes and learning from them.

Predominantly focused on the public-sector, Methods is now building a significant private sector client portfolio.

Methods was acquired by the Alten Group in early 2022.

We are looking for an experienced

Messaging Engineer to join a major technology transformation programme and play a key role in the migration and modernisation of the organisation's messaging services.

This is a hands-on engineering role responsible for configuring, migrating, testing and supporting messaging services in line with the approved architecture and migration strategy.

You will work primarily across

Exchange Online and Microsoft 365, supporting the implementation of coexistence arrangements and the migration of mailboxes and messaging objects between environments.

A key focus of the role will be protectingmail flow, data integrity, security and user experience throughout the transformation. You will help prepare migration waves, assess technical readiness, execute mailbox migrations and troubleshoot issues across messaging, identity, DNS, applications and end-user clients.

You will work closely with identity, EUC, network, security, applications, service transition and programme teams to ensure that messaging changes are coordinated with the wider transformation.

The successful candidate will combine strong hands-on Exchange Online expertise with a structured approach to migration, testing, automation and operational support.

As the Messaging Engineer, you will be responsible for the technical implementation and support of messaging services throughout the transformation lifecycle.

You will:

• Configure and manage
  
  Exchange Online and Microsoft 365 messaging services in accordance with the approved architecture.
• Design, implement and troubleshoot mail-routing configurations across existing and target environments.
• Configure and manageconnectors, accepted domains, transport rules, recipient settings and mail-flow controls.
• Establish and validate secure coexistence arrangements between messaging environments during migration.
• Prepare and executemailbox and messaging-object migrationsacross pilot and production migration waves.
• Develop migration plans and readiness checks to ensure that users and messaging objects meet the technical prerequisites for migration.
• Validate mailbox permissions, delegates, shared mailboxes, calendars, distribution groups and other messaging dependencies before and after migration.
• Test and supportmobile access and Outlook/client behaviour, ensuring users retain appropriate access throughout the transition.
• Implement and validate required DNS changes, including records and dependencies supporting messaging services.
• Configure and troubleshoot
  
  Autodiscover, SMTP relay and application mail-flow requirements.
• Implement appropriate email-security and compliance configurations in line with organisational requirements.
• Work with security teams to support capabilities including
  
  Defender for Office 365, anti-spam, anti-phishing and other messaging security controls.
• Assess migration readiness and use appropriate scripts and tooling to identify potential issues before migration.
• Develop Power Shell automation to support configuration, migration, validation, reporting and remediation activities.
• Produce clear migration reporting, including progress, success rates, failures, exceptions and outstanding actions.
• Monitor and troubleshoot mail-flow issues across internal and external systems.
• Investigate complex issues involvingmessaging, identity, DNS,…