Are you a experienced Messaging & Collaboration expert ready to lead enterprise-scale transformation projects? We’re looking for a technically strong and forward-thinking engineer to join a dynamic team driving modern workplace initiatives across messaging, collaboration, and mobile device management platforms.
About the Role
As the Senior Messaging & Collaboration Engineer, you’ll be the technical authority across Microsoft Exchange (on-prem and online), Microsoft 365, Intune, Teams, SharePoint Online, and Azure Active Directory. This is a hands-on engineering and delivery-focused role, offering exposure to both BAU and project work in a fast-paced environment.
You’ll lead solution design, implementation, and optimisation efforts, while acting as a trusted advisor to internal teams. Your work will directly impact service reliability, user experience, and the organisation’s digital transformation journey.
Key Responsibilities
1. Lead messaging, collaboration, and mobility projects from design to delivery.
2. Engineer and implement solutions across Exchange, M365, Intune, and related platforms.
3. Manage hybrid configurations and migration strategies.
4. Provide Tier-3 support and act as escalation point for complex issues.
5. Ensure performance, scalability, and compliance across collaboration platforms.
6. Collaborate with cross-functional teams on security, networking, and integration.
7. Maintain technical documentation and contribute to strategic roadmaps.
Skills & Experience
Essential:
8. 8–10 years in enterprise IT infrastructure, messaging, or collaboration roles.
9. Expert-level knowledge of Microsoft 365, Exchange Server 2016/2019, Exchange Online, and hybrid deployments.
10. Hands-on experience with Intune/Endpoint Manager, Azure AD, Conditional Access, and PowerShell scripting.
11. Strong understanding of email security protocols (SPF, DKIM, DMARC) and anti-spam/phishing controls.
12. Proven track record in delivering large-scale transformation and migration projects.
Beneficial:
13. Experience with Microsoft Defender for Office 365, Purview, and Teams Voice.
14. Familiarity with Zero Trust architecture and Microsoft 365 Copilot readiness.
15. Exposure to regulated environments ( finance, healthcare, government).
Qualifications
16. Degree in Computer Science, IT, or equivalent experience.
17. Relevant Microsoft certifications ( MS-102 – Microsoft 365 Administrator, Endpoint Administration).
Personal Attributes
18. Proactive, adaptable, and results-driven.
19. Strong communication and stakeholder management skills.
20. Excellent problem-solving and decision-making abilities.
21. Able to thrive under pressure and manage competing priorities.
Job Title: Messaging And Collaboration Engineer
Location: London, UK
Job Type: Contract
Trading as TEKsystems. Allegis Group Limited, Maxis 2, Western Road, Bracknell, RG12 1RT, United Kingdom. No. 2876353. Allegis Group Limited operates as an Employment Business and Employment Agency as set out in the Conduct of Employment Agencies and Employment Businesses Regulations 2003. TEKsystems is a company within the Allegis Group network of companies (collectively referred to as "Allegis Group"). Aerotek, Aston Carter, EASi, Talentis Solutions, TEKsystems, Stamford Consultants and The Stamford Group are Allegis Group brands.