Senior Systems Engineer (Exchange & Messaging)

Zoek Pin Belfast, Northern Ireland


Permanent (Full time)

Posted 27 days ago

It's fun to work in a company where people truly BELIEVE in what they're doing!

We're committed to bringing passion and customer focus to the business.

Company Overview

At Proofpoint, people are at the heart of our award-winning lineup of cybersecurity solutions, and the people who work here are the key to our success, and to that of our customers. We’re customer-focused, collaborative and committed to excellence. Through a culture of diversity, honesty and initiative, we deliver meaningful innovation that helps manage today’s biggest threats. With opportunities in all functions, we offer many exciting reasons to join our team.

The Role
In this role you will be working closely with other team members in maintaining and expanding our enterprise IT systems and supporting our products used internally. The ideal candidate must demonstrate the ability to provide high levels of customer service, thrive in a fast-paced environment, and have fun delivering creative solutions to business challenges.

Your day-to-day

  • Design, deploy and manage a variety of systems and platforms in an enterprise environment

  • Support high volume corporate email services

  • Implement first-customer (Proofpoint product) solutions with continued support and feedback to engineering groups

  • Participate in M&A activities to merge organizations, perform data migrations, and integrate processes and technology

  • Identify and isolate technical issues and propose mitigation and/or improvement strategies

  • Participate in an on-call rotation for support of systems outside of normal business hours

  • Facilitate knowledge sharing by collaboration, cross-training, and creating and maintaining detailed documentation and diagrams

  • Perform project and maintenance tasks with least business interruption which may mean during non-business hours and over weekends as needed

What you bring to the team

  • Proven Systems Administration experience for mid to large enterprise systems

  • Expert knowledge of email system configuration, security, and troubleshooting with ability to manage TLS, DMARC, SPF, DKIM, and perform routing investigations.

  • Expert level Exchange and Exchange Online

  • Deep understanding of email policy, routing, security, and the associated protocols (DNS, SMTP, etc.)

  • Experience managing a message archive and conducting confidential e-discovery investigations

  • Knowledge of Microsoft enterprise cloud technologies such as Office 365, AWS, Azure, SSO

  • Knowledgeable core IT skills of data protection, backup, disaster recovery, and monitoring/alerting

  • Working knowledge on Windows server, Active directory, DNS and DHCP, Networking

  • Experience in incident management and the ability to conduct root cause analysis

  • Familiarity with virtual infrastructure management, deploying and managing virtual machines

  • Organized, able to self-manage with excellent collaboration skills

  • Demonstrate initiative, teamwork, and willingness to perform any tasks


  • BSc in Computer Science, Information Technology, or a similar technical related field

  • Experience with Sendmail, postfix, email security gateways, and other email eco-system technology a plus

  • Automation experience with PowerShell, Python or Perl

Why Proofpoint

We are wholly devoted to helping our customers protect their greatest assets and biggest security risk: their people. That’s why we’re a pioneer in next-generation cybersecurity and why more than half of the Fortune 100 trust us as a security partner. We welcome candidates from all walks of life. Apply today and explore your future LifeAtPFPT.


If you like wild growth and working with happy, enthusiastic over-achievers, you'll enjoy your career with us!

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