Denis Sheridan
About Denis Sheridan
Denis Sheridan is the Director of Application Security at Gemini, with a strong background in mobile application security and mobile payments.
Director, Application Security at Gemini
Denis Sheridan currently holds the position of Director, Application Security at Gemini, where he has been since 2022. In this role, he focuses on fostering enterprise software security initiatives. His responsibilities include emphasizing mobile security and advancing mobile payment security measures.
Previous Experience at Synopsys Inc
Before joining Gemini, Denis Sheridan worked at Synopsys Inc in the Dallas/Fort Worth area. He served as Managing Principal from 2019 to 2022 and as Managing Consultant from 2016 to 2019. During his tenure, he developed extensive expertise in application security and consulting.
Consulting Career at Cigital and Dante Consulting
Denis Sheridan's professional journey includes significant roles at Cigital, Inc and Dante Consulting. At Cigital, he progressed from Consultant to Senior Consultant and eventually Managing Consultant, spanning from 2006 to 2016. At Dante Consulting, he was a Senior Consultant from 2003 to 2005, further honing his skills in enterprise software security.
Education at William & Mary
Denis Sheridan studied Computer Science at William & Mary, earning a Bachelor of Science (BS) degree. He attended the university from 1999 to 2003, which laid the foundational knowledge for his successful career in application security.
Leadership in OWASP Dallas Chapter
Denis Sheridan contributed significantly to the OWASP community by leading the OWASP Dallas Chapter as Chapter Lead from 2016 to 2022. In this role, he guided initiatives to enhance web application security awareness and practices within the local tech community.