Senior Microsoft 365 Information Security Engineer – Data Protection & Insider Risk

Brown Brothers Harriman & Co.; Jersey City (NJ); On-site; USD 110,000 - 160,000; Full time

Job summary

Brown Brothers Harriman (BBH) in New Jersey is seeking a senior Microsoft 365 Information Security Engineer to lead the design, deployment, and operation of enterprise security across Microsoft 365, including Purview, Data Loss Prevention, Insider Risk, and governance.

This technical leader will build data protection programs, implement insider risk controls, design Zero Trust architectures, and govern access across Microsoft 365, Azure, and emerging AI features, partnering with stakeholders to

Qualifications

• 5+ years implementing Microsoft 365 security and compliance solutions.
• Hands-on experience with Purview, Entra ID, and 365 Security & Compliance tools.
• Experience designing Zero Trust security architectures and data governance.

Responsibilities

• Lead design and deployment of Purview solutions incl. Information Protection, DLP, Insider Risk, eDiscovery, Records Management, and DSPM.
• Develop and enforce governance, labeling, encryption and compliance strategies.
• Design and administer identity and access controls leveraging Entra ID, CA, PIM, RBAC, ABAC, MFA, and Zero Trust.
• Establish governance for Copilot and AI platforms to prevent data leakage and ensure compliance.
• Conduct risk assessments, health checks, architecture reviews and remediation across M365.
• Partner with stakeholders to develop policies and operational procedures aligned with risk management objectives.

Skills

Microsoft Purview

Entra ID

Data protection

Zero Trust

Insider Risk Management

DLP

Education

Bachelor’s degree in Information Security / IT / CS

Tools

Microsoft 365 Security & Compliance tools

Azure

Job description

At BBH, Partnership is more than a form of ownership—it’s our approach to business and relationships. We know that supporting your professional and personal goals is the best way to help our clients and advance our business. We take that responsibility seriously. With a 200-year legacy and a shared passion for what’s next, this is the right place to build a fulfilling career.

Senior Microsoft 365 Information Security Engineer – Data Protection & Insider Risk Position Summary

We are seeking a senior-level Microsoft 365 Information Security Engineer with deep expertise in Microsoft Purview, Data Protection, Insider Risk Management, Identity Security, and Governance to lead the design, implementation, and operation of enterprise security and compliance solutions across Microsoft 365. This role serves as a technical leader and subject matter expert responsible for protecting sensitive information, reducing cyber risk, and enabling secure collaboration through Microsoft’s security ecosystem, including Purview, Entra ID, Sentinel, and Security Copilot. The ideal candidate will have extensive experience building and managing enterprise data protection programs, implementing insider risk controls, designing Zero Trust security architectures, and governing access to corporate data across Microsoft 365, Azure, and emerging AI technologies such as Microsoft 365 Copilot.

Key Responsibilities

• Lead the design and deployment of Microsoft Purview solutions including Information Protection, Data Loss Prevention (DLP), Insider Risk Management, eDiscovery, Records Management, and Data Security Posture Management (DSPM).
• Develop and enforce enterprise data governance, classification, labeling, encryption, and compliance strategies.
• Design and administer identity and access management controls leveraging Entra ID, Conditional Access, Privileged Identity Management (PIM), RBAC, ABAC, MFA, and Zero Trust frameworks.
• Establish governance controls for Microsoft 365 Copilot and other AI platforms to prevent data leakage and ensure regulatory compliance.
• Conduct security assessments, health checks, architecture reviews, and security remediation efforts across Microsoft 365 environments.
• Partner with business stakeholders and security teams to develop policies, standards, and operational procedures that align with enterprise risk management objectives.
• Provide technical leadership, mentorship, and strategic guidance on Microsoft security and compliance best practices.

Required Qualifications

• 5+ years of experience implementing and managing Microsoft 365 security and compliance solutions.
• Strong hands‑on expertise with Microsoft Purview, Entra ID, and Microsoft 365 Security & Compliance technologies.
• Proven experience with data classification, sensitivity labeling, DLP, Insider Risk Management, identity governance, and access management.
• Experience designing and implementing Zero Trust security architectures.
• Deep understanding of enterprise cloud security, compliance frameworks, and risk mitigation strategies.

Preferred Qualifications

• Microsoft certifications such as SC-100, SC-300, SC-400, SC-200, and AZ-305.
• Bachelor’s degree in Information Security, Cybersecurity, Computer Science, Information Technology, or a related field.

Salary Range NJ: $110,000 - $160,000 base salary + annual target bonus BBH and its affiliates' compensation program includes base salary, discretionary bonuses, and profit-sharing. The anticipated base salary range(s) shown above are only for the indicated location(s) and may differ in other locations due to cost of living and labor considerations. Base salaries may vary based on factors such as skill, experience and qualification for the role.

BBH's total rewards package recognizes your contributions with more than just a paycheck—providing you with benefits that enhance your experience at BBH from long‑term savings, healthcare, and income protection to professional development opportunities and time off, our programs support your overall well‑being.

We value diverse experiences. We value diverse experiences and transferrable skillsets.

About BBH: Brown Brothers Harriman (BBH) is a premier global financial services firm, known for premium service, specialist expertise, technology solutions and partnership approach to client management. Across Investor Services and Capital Partners, we work with an enviable roster of sophisticated clients who make BBH their first call when they are tackling their hardest challenges. Delivering for our clients and each other energizes us. We believe that how we do our work is just as important as what we do. We are relentless problem solvers who know our best ideas come from collective debate and development—so we are never possess‑ive about our ideas. Every day we come together as a diverse community of smart and caring people to deliver exceptional service and expert advice—creating success that lasts. No matter where you sit in the organization, everyone is empowered to contribute their ideas. BBHers can pick up the phone and call any colleague, and they are happy to help. Expanding your impact beyond your daily role is part of how we operate as trusted partners to one another. We believe stability is a competitive advantage, but being stable means having the knowledge, skill, and discipline to evolve, often—pushing the boundaries of innovation. As a private partnership, every investment we make is in the relationships, technologies, products and development we believe are in the long‑term interests of our clients and our people. Our long‑tenured leaders are experts in their areas and are actively involved in the day‑to‑day business, taking the time to provide guidance and mentoring to build the next generation of BBHers. Because we know, our success begins with yours. Go to BBH.com to learn more about our rewards and benefits, philanthropy, approach to sustainability or how we support you to thrive personally, physically and financially. We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, gender, national origin, age, genetic information, creed, marital status, sexual orientation, gender identity, disability status, protected veteran status, or any other protected status under federal, state or local law. Brown Brothers Harriman (BBH) is a global financial services firm known for premium service and specialist expertise. BBH works with leading asset managers, financial institutions, private businesses and their owners, wealthy families, and sophisticated institutional investors. As a private partnership, we are uniquely built to put clients first and create success that lasts. We believe our success starts with yours. At BBH, partnership is more than a form of ownership—it’s our approach to business and relationships. Every day we come together as a diverse community of smart and caring people to deliver exceptional service and expert advice. Across Investor Services and Capital Partners, we work with an enviable roster of sophisticated clients who make BBH their first call when they are tackling their hardest challenges. No matter where you sit in the organization, everyone is empowered to contribute their ideas and perspective. BBHers can pick up the phone and call any colleague, and they are happy to help – which is why expanding your impact beyond your daily role is part of how we operate as trusted partners to one another. Delivering for our clients and each other energizes us. We believe stability is a competitive advantage, but being stable means having the knowledge, skill, and discipline to evolve, often—pushing the boundaries of innovation. Every investment we make is in the relationships, technologies, products and development we believe are in the long‑term interests of our clients and our people. Our long‑tenured leaders are experts in their areas and are actively involved in the day‑to‑day business, taking the time to provide guidance and mentoring to build the next generation of BBHers. With a 200‑year legacy and a shared passion for what’s next, this is the right place to build a fulfilling career.