Information Technology Specialist

Infinity Quest Limited; Greater London; On-site; GBP 90,000 - 130,000; Full time

Job summary

Infinity Quest Limited is seeking an experienced Data Loss Prevention (DLP) SME to design, implement and optimise enterprise DLP capabilities using Microsoft Purview DLP and Zscaler DLP within our cloud-first environment. You will lead policy configuration, integration, and ongoing operational improvements to ensure data protection across email, endpoint, cloud, and network channels.

As the trusted DLP authority, you will work with security architects, engineering teams and business stakeholders

Qualifications

• Proven experience as a DLP SME or similar senior data‑protection role.

Responsibilities

• Lead design, configuration, deployment and optimisation of enterprise DLP solutions.
• Act as SME for Microsoft Purview DLP and Zscaler DLP across email, endpoint, cloud and network channels.
• Develop and enhance DLP policies, rules and monitoring use cases aligned to business data-protection requirements.
• Advise security architects and stakeholders on best-practice DLP implementation and data classification alignment.
• Conduct deep-dive analysis to reduce false positives and improve policy effectiveness.
• Collaborate with SOC and Cyber Operations to support incident response including triage and remediation.

Skills

Microsoft Purview DLP

Zscaler DLP

Defender for Cloud Apps

DLP policy configuration

Governance & metrics

Tools

Microsoft Purview

Zscaler

Job description

We are seeking an experienced Data Loss Prevention (DLP) SME to support the design, implementation, and optimisation of enterprise DLP capabilities. The ideal candidate will have strong hands-on expertise in Microsoft Purview DLP and Zscaler DLP, with additional knowledge of Microsoft Defender for Cloud Apps / Defender DLP considered a significant advantage.

The role requires a deep understanding of data protection controls, cloud and network security, governance, and best-practice standards. The successful candidate will operate as the technical authority for DLP, guiding solution design, policy configuration, integration activities, and ongoing operational improvements.

Key Responsibilities

• Lead the design, configuration, deployment, and optimisation of DLP solutions across the enterprise.
• Act as the SME for Microsoft Purview DLP and Zscaler DLP, providing expertise across email, endpoint, cloud, and network channels.
• Support the development and enhancement of DLP policies, rules, and monitoring use cases aligned to business data‑protection requirements.
• Advise security architects, engineering teams, and business stakeholders on best‑practice DLP implementation and data classification alignment.
• Conduct deep‑dive analysis and tuning to reduce false positives and improve policy effectiveness.
• Work closely with SOC and Cyber Operations teams to support incident response, including triage, investigation, and remediation of DLP alerts.
• Provide leadership on DLP governance, reporting, metrics, and continuous improvement initiatives.
• Assist in producing technical documentation, runbooks, architectural designs, and operational procedures.

Required Skills & Experience

• Proven experience as a DLP SME or similar senior data‑protection role.
• Strong hands‑on expertise with Microsoft Purview DLP (policies, sensitive information types, endpoint DLP, cloud apps, insider risk alignment).
• Extensive experience with Zscaler DLP, including policy creation, endpoint integrations, and cloud/SaaS data‑flow analysis.
• Solid understanding of enterprise data flows, cloud architectures, and data‑classification frameworks.
• Ability to troubleshoot complex DLP policy behaviours across multiple platforms.