John Hornsten, Dcca
About John Hornsten, Dcca
John Hornsten is the Lead Identity & Access Management Engineer at Thomson Reuters, where he has worked since 2021. He has extensive experience in engineering and management roles, including positions at Securian Financial Group and StayWell Health Management, and holds a Mini-MBA from the University of St. Thomas.
Current Role as Lead Identity & Access Management Engineer
John Hornsten serves as the Lead Identity & Access Management Engineer at Thomson Reuters, a position he has held since 2021. In this role, he leads the AWS Cloud Migration project for SailPoint IIQ (IdentityIQ) and specializes in designing connector integrations. He also manages Power Automate workflows for audit evidence approvals and provides weekend support for the EnterWorks platform. His responsibilities include conducting policy updates and managing multiple Risk Registries for cross-functional teams.
Previous Experience at Thomson Reuters
Hornsten has extensive experience at Thomson Reuters, where he held various positions over several years. He worked as a Manager in Hosting, Demand & Business Intelligence from 2018 to 2021, and as a Manager of Strategic Hosting Services from 2017 to 2018. Prior to these roles, he served as a Lead Systems Engineer from 2013 to 2016, and as a Team Lead for Data Center Strategy for a brief period in 2016. His tenure at Thomson Reuters began with his role as a Senior Data Center Power Forecasting Engineer from 2010 to 2013.
Education and Professional Development
John Hornsten studied at the University of St. Thomas, where he earned a Bachelor of Science degree in Chemistry with a minor in Business Administration from 1995 to 1999. He later pursued further education at the same institution, achieving a Mini-MBA in 2013. His educational background supports his expertise in identity and access management and his various engineering roles.
Notable Achievements in Identity & Access Management
Hornsten has made significant contributions in his field, including saving $800,000 by automating SOX admin access reviews using Snowflake, ServiceNow, and BigFix sources. He routinely collaborates with the Big 4 CPA Firms on evidence sampling and provides metrics on IAM operational efficiency opportunities related to vulnerabilities. His work includes organizing certifications for SailPoint IIQ (IdentityIQ) v8.1 and managing operational efficiency related to security findings.
Career Background Prior to Thomson Reuters
Before joining Thomson Reuters, John Hornsten worked at StayWell Health Management as a Product Development Manager from 2007 to 2010. He also spent five years at Securian Financial Group, where he held various roles including Senior Analyst, Development Support, and Technical Analyst. His early career included positions as a Technician at the University of St. Thomas and as an Engineering Intern at Imation.