Senior Messaging Engineer
Digital Realty

Position Title: Senior Messaging Engineer

Location: Dallas

Your role

The Senior Messaging Engineer is responsible for the design, implementation, operation, and security of Digital Realty's messaging environment, with a primary focus on Microsoft 365 / Exchange Online.

The role acts as a Level 3 subject-matter expert for messaging and email security, supporting EUC operations, collaborating with Security and Infrastructure teams, and ensuring a secure, reliable, and compliant messaging service for a global user base of 5,000+ employees.

This position plays a critical role in email hygiene, deliverability, authentication, and threat protection, ensuring business continuity and protecting the organization from phishing, spoofing, and email-borne attacks.

What you'll do

• Own the architecture, security, and lifecycle of Microsoft 365 messaging services
  
• Design, implement, and enforce SPF, DKIM, and DMARC (monitoring - enforcement)
  
• Lead email security strategy in collaboration with Security teams
  
• Act as final escalation point for complex messaging, deliverability, and security incidents
  
• Design and maintain advanced mail flow, transport rules, and connectors
  
• Lead integration and optimization of Valimail and/or Proofpoint
  
• Drive automation using PowerShell and reduce operational overhead
  
• Define standards, policies, and best practices for messaging services
  
• Lead messaging-related projects, tenant changes, and service improvements
  
• Mentor and technically guide Messaging Engineers
  
• Represent Messaging in global IT meetings
  
• Drive continuous improvement through automation, AI, analytics, and self-service capabilities.
  
• Represent EUC services in global IT leadership forums and steering committees.
  
• Drive continuous improvement through automation, AI, analytics, and self-service capabilities.
  
• Stay informed on industry trends and emerging technologies, integrating relevant innovations into the EUC roadmap.
  

What you'll need

• 5+ years of experience in enterprise messaging engineering
  
• Deep expertise in Microsoft 365 Messaging and EOP
  
• Proven ownership of SPF, DKIM, and DMARC enforcement
  
• Experience designing messaging services for 5,000+ users
  
• Strong PowerShell skills for automation and reporting
  
• Proven experience leading complex incidents and changes
• Ability to work across multiple time zones with flexible availability.
  
• Experience in multinational organizations with diverse regulatory environments.
  
  

A bit about us

Digital Realty brings companies and data together by delivering the full spectrum of data center, colocation and interconnection solutions. PlatformDIGITAL®, the company's global data center platform, provides customers with a secure data meeting place and a proven Pervasive Datacenter Architecture (PDx®) solution methodology for powering innovation and efficiently managing Data Gravity challenges. Digital Realty gives its customers access to the connected data communities that matter to them with a global data center footprint of 300+ facilities in 50+ metros across 25+ countries on six continents.

To learn more about Digital Realty, please visit digitalrealty.com or follow us on LinkedIn and Twitter.

A bit about our team

Our IT team is at the heart of our business. We develop infrastructures, design and build networks, support servers and provide the first line of support by delivering rich connectivity for our customers. With new data centers coming online all the time, it's a rapidly changing technical environment so our team is always ready to innovate and take the lead on projects. We constantly develop, deploy and support vital networks and data services that drive business performance and improve life for customers around the globe.

What we can offer you

Our rapidly evolving business sector offers the opportunity to be part of a courageous and passionate team who work together to understand and meet the changing needs of our global customers.

Join us and you'll be part of a supportive and inclusive environment where you can bring your whole self to work. As part of our team, you'll get to work with people from different business areas, challenge the way we do things and put your ideas into action. We'll also give you plenty of development opportunities so you can build a rewarding and successful career with us.

Apply today, take charge of your career and grow your talents with us.

Health and Safety

Safety isn't just a priority here at Digital; it's critical to everything we do. Safeguarding lives, protecting assets, and securing data aren't just ideals - they're essential pillars of our commitment to excellence for our people, our partners and our customers. We have a culture of care where every member of Team Digital embraces a relentless pursuit of working safely across Digital Realty. Together we are Safely Powering Progress.

Our Compensation Philosophy

Digital Realty offers its employees a highly competitive compensation package, excellent benefits, and an environment that recognizes and rewards your contributions. Central to our compensation philosophy is rewarding our employees for achieving the values and objectives aligned to the company's overall goals and values.

---