Senior Messaging Infrastructure Engineer

In this role you will support the delivery of Messaging and IAM strategy for a flagship account within Sopra Steria’s Aerospace, Defence and Security sector. You will be a key escalation point and work on BAU tickets while contributing to high-profile European projects. The position combines on-site delivery with cross-functional collaboration to strengthen secure messaging and identity tooling. This is an exciting opportunity to shape messaging and IAM in a critical, security-focused environment.

• 25 days annual leave with option to buy extra days
• Health cash plan
• Life assurance
• Pension
• Flexible working arrangements
• On-site/Hybrid working options

• Serve as a main technical escalation point
• Handle customer-focused BAU tickets in Messaging and IAM
• Collaborate with projects team on large-scale European-wide initiatives

• Strong experience with on-prem Exchange environments (2019 preferred)
• Experience managing patching schedules across Exchange with SU updates
• Understanding of E-Mail/Messaging AV and Spam protection (Cisco ESA or Fortimail a plus)
• Experience with Microsoft Active Directory at Enterprise/Multi Forest scale
• Good understanding of Active Directory, Domain structure and Group Policies (AD, OU, GPO)
• Strong troubleshooting and investigation skills including root cause analysis
• Single Sign-on/PKI knowledge
• SC preferred
• Sole British national eligibility

• Customer-focused
• Strong troubleshooting and problem-solving
• Cross-functional collaboration
• On-prem Exchange (2019)
• Exchange patch management (SU updates)
• E-Mail/Messaging antivirus and spam protection