Proofpoint DLP Engineer - Email Security & DMARC

Keeping sensitive information secure is one thing. Building effective controls that work in practice, reduce risk and can be confidently managed long after you've finished is another. As a Proofpoint DLP Engineer, you'll take ownership of strengthening an established enterprise security environment and leaving it in better shape than you found it.

You'll work with an enterprise customer to improve data loss prevention, strengthen email protection and develop security policies that deliver measurable results. This is a hands-on contract where your technical expertise will directly influence how sensitive information is protected and how effectively security threats are managed.

What's in it for you £600–£700 per day, outside IR35. Six-month contract supporting a complex enterprise security environment. Mainly remote working, with occasional visits to London. Opportunity to take ownership of improving and maturing an expanding security platform.

Work across data protection, phishing prevention and email authentication. Collaborate with Microsoft 365, security operations and information governance specialists. Your responsibilities as Proofpoint DLP Engineer Configure, deploy and optimise data loss prevention policies, improving enforcement and reducing false positives.

Manage email protection controls, investigate security alerts and strengthen defences against phishing, spoofing and impersonation. Review email relay, mail flow, exceptions and SPF/DKIM/DMARC alignment, progressing appropriate enforcement measures.

Support onboarding, policy deployment and ongoing improvements across the existing security environment. Integrate security monitoring with Microsoft Sentinel and SIEM platforms, accounting for approximately 20% of the role.

Produce technical documentation, operating procedures and automation recommendations, transferring knowledge to permanent engineers. What we're looking for in a Proofpoint DLP Engineer Current, active SC security clearance is essential.

Proven hands-on experience operating and managing Proofpoint Enterprise DLP within a complex enterprise environment. Practical expertise in Proofpoint Email Security, DMARC, SPF, DKIM and email authentication controls. Experience configuring security policies, investigating alerts, managing exceptions and following structured change control processes.

Knowledge of Microsoft 365 environments, Sentinel/SIEM integration and producing technical documentation. Working hours: Full-time, mainly remote with occasional travel to London. If you have current SC clearance and the hands-on technical experience to strengthen enterprise data protection, we want to hear from you.

Apply today for this Proofpoint DLP Engineer contract and put your expertise to work on a project with clear, lasting outcomes. Candidate Source Ltd is an advertising agency. Once you have submitted your applicatio...

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