Senior Systems Engineer

🔒 Confidential Employer
Posted 24 March 2026
LOCATION
London, UK
TYPE
Full-time
LEVEL
Mid-Senior level
CATEGORY
IT Engineering
This employer holds a UK Home Office sponsor license — sponsorship for this specific role is at the employer’s discretion

SKILLS

Microsoft 365 Azure Active Directory Exchange Online Windows Server Cloud Infrastructure Virtualization Security

FULL DESCRIPTION

[Employer hidden — view at passion-project.co.uk] is the leading global provider of managed services, cybersecurity, and business transformation for mid-market financial services organizations across the globe.  From its unmatched range of services, [Employer hidden] provides stability, security and improved business performance, freeing clients from technology concerns and enabling them to focus on running their businesses.  More than 1,000 customers worldwide with over $3 trillion of assets under management put their trust in [Employer hidden].

At [Employer hidden], we believe success is driven by passion and purpose. Our passion for technology is only surpassed by our commitment to empowering our employees around the world.

As a Senior Systems Engineer, you will play a key role in our technical delivery team to drive the technology programs, including Cloud implementation and support, desktop engineering escalation and networking for a defined portfolio of clients. Using latest and greatest technologies and solutions, you will support our client’s innovation by following a set of standards and best practices in a rapidly evolving technology landscape.

Job Details

Provide advanced support of cloud infrastructures such as Microsoft 365/Azure (Azure AD, Exchange Online, SharePoint Online, OneDrive for Business, Teams, Intune)

  • Collaborate with, and act as a tier 3 escalation point for Client Technology Management, Service Desk, Engineering, and other client support teams
  • Implement and manage enterprise mail platform and security systems such as Microsoft Exchange or Exchange Online
  • Act as a Technical Lead for migrations, implementations, relocations, etc
  • Take ownership of complex technical challenges and provide long term fixes based on root cause analysis
  • Document processes and procedures which explain system functionality or regular tasks to contribute to our internal knowledge base including architecture diagrams, runbooks, and standard operating procedures (SOP)
  • Audit undocumented client environments and provide technical recommendations based on findings
  • Apply best-practice configurations to client security platforms such as Azure Active Directory Conditional Access, DUO Multifactor Authentication (MFA) services
  • Perform system maintenance tasks including software and operating system patching, software version upgrades, critical patch applications, and vulnerability remediation
  • Provide advanced support of Active Directory such as Domain Controller upgrades, Group Policy creation, scheduled software deployments, network policy maintenance, and certificate management
  • Interface with common technology support tools such as Remote Monitoring and Management (RMM), Mobile Device/Mobile Application Management, Anti-Virus/Anti-Malware

Who you are:

Bachelor’s degree in an Information Technology related field, or a minimum of 6+ years comparable experience in a technology administration role

  • Advanced knowledge of Microsoft Operating Systems such as Windows Server and Windows 10/11
  • Advanced administration experience with Public Cloud platforms with focus in Microsoft 365 and Azure (Azure AD, Exchange Online, SharePoint Online, OneDrive for Business, Teams, Intune)
  • Experience in administration of e-mail platforms and security integrations such as Exchange Online
  • Experience in virtualization administration on platforms such as VMware vSphere and Hyper-V
  • Proficient in incident response management during security events and high-priority escalations, as well as disaster recovery and business continuity activations

Bonus points if you have:

  • Experience with Managed Service Providers (MSP) preferred
  • Financial Services or Life Science industry experience a plus

[Employer hidden]’s culture is all about connection - connection with our clients, our technology and most importantly with each other. In addition to working with an amazing team around the world, [Employer hidden] offers a competitive compensation package and so much more!  If you believe you’d be a great fit and are ready for your best job ever,we’d like to hear from you!

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