Proofpoint Security Engineer

Gazelle Global; Wokingham; On-site; GBP 75,000 - 110,000; Full time

Job summary

Gazelle Global is seeking an experienced Proofpoint Subject Matter Expert to lead design, deployment, and optimization of Proofpoint security solutions in a large enterprise environment.

You will own Prooftpoint-related security controls, collaborate with SOC and MS 365 teams, and mentor junior engineers while ensuring robust protection against phishing and email threats.

Qualifications

• 8+ years in Cyber Security, Messaging Security, or Enterprise Security Administration.
• 4+ years hands-on with Proofpoint solutions.
• Strong expertise in Email Security, Anti-Phishing, and Email Gateway technologies.
• Experience with Microsoft 365/Exchange Online, Exchange Server, SMTP Routing, and Mail Flow Architecture.
• Hands-on knowledge of SPF, DKIM, DMARC and email fraud prevention.
• Experience in security incident investigation and remediation.
• Knowledge of SIEM platforms such as Splunk, Microsoft Sentinel, or QRadar.
• Knowledge of scripting/automation using PowerShell or Python is desirable.

Responsibilities

• Serve as the primary SME for the Proofpoint platform and related email security technologies.
• Design, deploy, configure, and maintain Proofpoint solutions including PEP, TRAP, and Information Protection/DLP.
• Manage email security policies, spam filtering, malware protection, and threat detection rules.
• Monitor, investigate, and respond to email-based security incidents.
• Configure and maintain SPF, DKIM, DMARC.
• Collaborate with SOC, Security Operations, Infrastructure, and Microsoft 365 teams.
• Develop operational procedures, knowledge articles, and technical documentation.
• Support audits, compliance activities, and security reviews.
• Provide L3/L4 technical support and mentor junior security engineers.

Skills

Proofpoint

Email Security

Threat Protection

DLP

SPF/DKIM/DMARC

Exchange Online

SIEM

PowerShell

Python

Mentoring

Incident Response

Tools

Proofpoint

Job description

We are seeking an experienced Proofpoint Subject Matter Expert (SME) to lead the design, implementation, administration, and optimization of Proofpoint security solutions within a large enterprise environment. The ideal candidate will possess deep expertise in email security, threat protection, data loss prevention (DLP), and email authentication technologies, ensuring robust protection against phishing, malware, and other cyber threats.

Your Key Responsibilities:

• Serve as the primary SME for the Proofpoint platform and related email security technologies.
• Design, deploy, configure, and maintain Proofpoint solutions, including:
• Proofpoint Email Protection (PEP)
• Proofpoint Threat Response Auto-Pull (TRAP)
• Proofpoint Information Protection / DLP
• Manage email security policies, spam filtering, malware protection, and threat detection rules.
• Monitor, investigate, and respond to email-based security incidents.
• Configure and maintain email authentication protocols:
• SPF
• DKIM
• DMARC
• Conduct threat analysis and provide recommendations to enhance email security posture.
• Perform platform upgrades, health checks, troubleshooting, and performance tuning.
• Collaborate with SOC, Security Operations, Infrastructure, and Microsoft 365 teams on security initiatives.
• Develop operational procedures, knowledge articles, and technical documentation.
• Support audits, compliance activities, and security reviews.
• Provide L3/L4 technical support and mentor junior security engineers.
• 8+ years of experience in Cyber Security, Messaging Security, or Enterprise Security Administration.
• 4+ years of hands-on experience with Proofpoint solutions.
• Strong expertise in:
• Email Security
• Anti-Phishing Controls
• Email Gateway Technologies
• Experience with:
• Microsoft 365 / Exchange Online
• Exchange Server
• SMTP Routing
• Mail Flow Architecture
• Hands-on knowledge of SPF, DKIM, DMARC, and email fraud prevention.
• Experience in security incident investigation and remediation.
• Strong understanding of malware analysis and advanced email threats.
• Familiarity with SIEM platforms such as Splunk, Microsoft Sentinel, or QRadar.
• Knowledge of scripting/automation using PowerShell or Python is desirable.
• Strong analytical and troubleshooting skills.
• Stakeholder management and communication skills.
• Incident management and problem-solving capability.
• Ability to work in a high-pressure operational environment.
• Excellent documentation and knowledge-sharing skills.

Security Clearance (Preferred)

• SC Cleared or SC Eligible (preferred for customers supporting Critical National Infrastructure, Utilities, or Government programs)