Cybersecurity Specialist – Email

Acadia Healthcare's purpose is to Lead Care With Light and our mission is to be a world-class organization that sets the standard for excellence in the treatment of mental health and addiction concerns. We strive to maintain our standing as a thought leader in the behavioral healthcare industry, providing treatment that is synonymous with compassion and innovation.

We are seeking a
Cybersecurity Specialist - Email & Cloud Collaboration Security
to join our team in Franklin, TN. The first 90 days in this role will be fully in-person to ensure comprehensive onboarding and training. After the initial period, the position will transition to a hybrid model, with 2 days remote and 3 days in the office each week

The
Cybersecurity Specialist – Email & Cloud Collaboration Security
will play a critical role in protecting Acadia's information assets, systems, and sensitive data by serving as the subject matter expert in enterprise email and cloud collaboration security, particularly within Microsoft 365 and other SaaS platforms. This role is responsible for designing, implementing, and optimizing advanced security controls across email, Teams, SharePoint, OneDrive, and other cloud collaboration tools while contributing to broader cybersecurity initiatives across networking, governance, and compliance. The Cybersecurity Specialist will partner with IT, IAM, compliance, and business teams to strengthen Acadia's cloud security posture, reduce risks associated with email and cloud collaboration, and support the adoption of best practices in cybersecurity across the organization.

Essential Functions

• Email & Cloud Collaboration Security Leadership: Serve as Acadia's subject matter expert for email and cloud collaboration security, including Microsoft 365, Teams, SharePoint, OneDrive, and other SaaS platforms. Lead the design, implementation, and optimization of security controls to protect against phishing, business email compromise (BEC), data leakage, and other cloud-based threats. Provide strategic guidance and operational support to ensure secure configuration, monitoring, and incident response across cloud collaboration environments.
• Policy & Configuration Management: Develop, maintain, and enforce secure policies for email and cloud collaboration platforms, including encryption, data loss prevention (DLP), safe links/attachments, and secure sharing. Ensure systems are configured securely and aligned with best practices.
• Identity & Access Security: Collaborate with IAM teams to strengthen