Sr. Information Security Administrator

Join a collaborative Customer Identity and Application Security team supporting critical privacy, security, and platform operations work in a fast-paced enterprise environment. This role is ideal for someone who enjoys hands-on system administration, cross-functional partnership, and contributing to reliable, secure application experiences.
Responsibilities
Administer and maintain the cookie management platform, including onboarding applications, categorizing cookies, applying branding standards, and publishing updated scripts on a recurring schedule
Create, coordinate, and implement IT change records within the service management platform
Support production deployments by coordinating code releases, validating post-deployment results, and helping resolve issues as needed
Perform recurring maintenance tasks such as certificate renewals, secret rotations, and account deprovisioning
Configure and maintain authentication and authorization settings for new and changing applications
Support code vulnerability management tools and related operational processes
Develop recurring operational, compliance, and application reports
Coordinate testing activities and communicate updates with internal stakeholders and users
Provide production support and help ensure systems remain aligned with established policies and standards
Collaborate with business analysts, technical teams, management, and cross-functional partners to move work forward
Support additional systems and capabilities within the Customer Identity and Application Security portfolio as needed
Follow safety, security, and operational best practices while contributing to a positive team environment
Skills
Strong verbal and written communication skills
Proven collaboration skills in a team environment working with developers and quality engineers
Experience in Agile/Scrum delivery environments
Background in change management, incident management, and request management
Hands-on experience with application monitoring tools for environment health awareness
At least 2 years of system administration experience
Ability to troubleshoot complex issues and develop practical solutions
Willingness to help drive tasks forward and support resolution efforts
Availability to support deployments multiple times per week, including occasional after-hours and off-cycle work when needed
Preferred Skills
Experience with cookie management software such as OneTrust
Data analysis and reporting experience
Scripting knowledge such as PowerShell or SQL
Experience with a customer identity and access management platform such as Okta
Familiarity with web application certificates
Production support experience with both internal teams and external customers
Experience with ServiceNow, Octopus, Terraform, SQL Server Management Studio, or Visual Studio Code
Experience with Dynatrace or similar monitoring tools
Interest in exploring AI tools to improve automation and support processes
Horizontal is committed to fostering an inclusive workplace where diverse perspectives are valued and everyone is encouraged to contribute, grow, and succeed. We welcome applicants from all backgrounds and are dedicated to equity, respect, and belonging in every stage of the hiring process.
By applying for this position, you acknowledge and agree that Horizontal Talent may contact you regarding your application using automated technology, including phone calls, SMS/text messages, or email, which may be delivered by our virtual AI recruiter, Alex.

Work arrangement
Yes