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Tier4 Group · 2 weeks ago

Senior Cyber Security Engineer

Milwaukee, WI

Contract

Hybrid

Senior Level

5+ years exp

Tier4 Group is a company focused on cyber security solutions, and they are seeking a Senior Cyber Security Engineer to enhance their data protection and insider threat detection capabilities. This role involves designing and implementing security measures using Microsoft E5 tools and collaborating with various teams to ensure compliance and operational efficiency.

CRMInformation TechnologySoftwareVirtual Reality

Responsibilities

Engineer Secure-by-Default E5 Data Protection

Design and implement Microsoft Purview DLP policies across endpoints, Exchange, SharePoint, OneDrive, and Teams

Develop and maintain Sensitivity Label taxonomy with automated enforcement paths

Build Policy-as-Code Pipelines

Create CI/CD workflows to version, test, and deploy DLP rules, label configurations, and governance artifacts across multiple environments

Integrate Security Telemetry

Connect Zscaler SSE inspection with Purview controls; route events to Splunk for analytics and detection

Leverage CrowdStrike telemetry to correlate endpoint behaviors with data movement signals for insider-risk and exfiltration scenarios

Develop Automations & Guardrails

Build services and workflows (Azure Functions, Logic Apps, Graph API) for auto-remediation, revoking risky shares, and notifying data owners

Implement configuration baselines and drift detection for E5 security controls (MCAS, Conditional Access, etc.)

Operate and Continuously Improve

Maintain reliability for data protection pipelines, including SLIs/SLOs, runbooks, and incident playbooks

Create Splunk dashboards and correlation searches aligned to exfiltration, anomalous access, and label violations

Collaborate Across Teams

Partner with Privacy and Compliance for audit-ready controls and evidence processes

Work with IAM, Insider Risk, and platform teams to align label taxonomy and enforcement with business workflows

Provide technical leadership and mentorship for engineers and analysts implementing new E5 features

Qualification

Microsoft E5 security stackPolicy-as-CodeData protectionGraph APIPowerShellZscalerCrowdStrikeSplunkSaaS/AI securityTechnical leadershipCollaboration

Required

5+ years of experience in enterprise security or platform engineering

Hands-on expertise with Microsoft E5 security stack (Purview DLP, Information Protection, eDiscovery)

Proven ability to build policy-as-code for DLP/labels and automate administration using Graph API and PowerShell

Experience designing secure-by-default guardrails for SaaS/AI adoption, including Copilot

Preferred

Strong background in data protection for regulated data (PII/PHI) and insider-risk detection

Experience with Zscaler (SSE/ZIA/ZPA), CrowdStrike (Falcon APIs/telemetry), and Splunk (CIM, correlation searches)

Familiarity with MCAS, Defender for Cloud Apps, and conditional access policies

Knowledge of HIPAA/PHI audit support and exception governance workflows

Company

Tier4 Group

Tier4 Group is a women-owned and diversity-certified technology Talent, Professional Services, Advisory, and Information Security firm with a national reach.

Founded in 2010

Alpharetta, Georgia, USA

201-500 employees