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Infrastructure Engineer - Email Security

Job in Belfast, County Antrim, BT1, Northern Ireland, UK
Listing for: MCS Group
Full Time position
Listed on 2026-06-19
Job specializations:
  • Engineering
    Systems Engineer
Salary/Wage Range or Industry Benchmark: 250 - 300 GBP Daily GBP 250.00 300.00 DAY
Job Description & How to Apply Below
MCS Group is looking for an experienced Infrastructure Engineer to support a critical email security project. This Contract Infrastructure Engineer will focus on the migration from an existing email filtering platform to Mimecast, ensuring a secure, seamless transition with minimal disruption to users and business operations. This is a hands-on technical role suited to someone who has previously delivered Mimecast implementations/email security migrations.

The Role Lead the technical delivery of an email security migration to Mimecast Review and document existing email security, filtering and mail flow configurations Configure and administer Mimecast policies, services and integrations Manage mail routing, transport rules and gateway configurations Support SPF, DKIM and DMARC configuration and validation Develop migration and cutover plans Troubleshoot mail flow, security and delivery issues throughout the migration

The Person Prior experience implementing, administering or migrating to Mimecast Strong knowledge of Microsoft 365 and Exchange Online Experience managing enterprise email security platforms Strong understanding of SMTP, mail routing and email authentication technologies

Experience with SPF, DKIM and DMARC Ability to assess existing environments and produce migration plans Excellent troubleshooting and stakeholder communication skills

Experience with Microsoft Defender for Office 365, Proofpoint, Barracuda or similar secure email gateways Duration:
Circa 3 months

Location:

NI based client but can be worked remotely within the UK Rate: £250 - £300 per day To speak in absolute confidence about this opportunity please send an up-to-date CV via the link provided or contact Jill Johnston, Head of IT Contracts, at MCS Group Even if this position is not right for you, we may have others that are. Please visit MCS Group to view a wide selection of our current jobs MCS Group is committed to Equality, Diversity, and Inclusion for all, being the first recruitment agency in NI to achieve Bronze Diversity Mark accreditation, if you have a disability which means you require a reasonable adjustment to be considered at any stage of the recruitment process, please contact us and we will endeavour to facilitate the request.

Not all agencies are the same MCS Group are passionate about providing a first-class service to all our customers and have an independent review rating of 4.9 stars on Google.

Skills:

email mimecast infrastructure engineer support engineer security
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