Medallia Leadership Team


Joe Tyrrell

Before joining Medallia, Joe served as president of ICE Mortgage Technology, where he led three wholly owned subsidiaries in MERS, Simplifile and Ellie Mae. He was responsible for all facets of each business, driving record revenues and profitability while introducing new innovations in automation, artificial intelligence, and data-driven workflows. Previously, he served in various leadership roles at Ellie Mae, including COO, prior to ICE’s acquisition.


Jimmy Duan

Jimmy leads Professional Services and Enablement. Before Medallia, he was most recently a member of the CallidusCloud executive team and held roles as CTO, EVP Services, EVP International Sales and Customer Success. Jimmy has also held executive leadership roles in Client Services, Analytics and Data Warehousing at Xactly, and Quovera.


Dan Madden

Dan oversees our financial strategy and provides strategic financial input to the senior management team. He has a diverse background in finance and administration of public and private-equity-backed companies, including serving as the EVP & CFO for Ellie Mae, where he helmed the transition from a publicly-traded to private-equity-owned business through to the subsequent sale of the company to Intercontinental Exchange. Dan has also held CFO and finance leadership positions at Revel Systems, Cepheid, Symmetricom, Tellabs, and McKesson.


Simonetta Turek

Simonetta leads Product and Design at Medallia, bringing over 20 years of experience in product, technology, and customer enablement leadership to her role. She has had a diverse career, spanning startups and large multinationals such as Nokia, AWS, and Twilio, as well as international assignments in Asia and Europe. Prior to Medallia, she was GM of the Customer Experience Products division at Twilio. Simonetta is a dedicated mentor and passionate supporter of the professional development of women in tech.


Ben Brewer

Ben leads the global revenue strategy at Medallia, focused on sales strategy, growth acceleration, and client retention drawing upon his years of sales leadership experience. Most recently, Ben held the Chief Sales Officer position at Cornerstone OnDemand, driving growth initiatives by empowering clients from various regions and industries to leverage Cornerstone’s cloud-based solutions. Before his tenure at Cornerstone, Ben held notable roles as President of Global Go-To-Market at Nintex, as well as General Manager and Senior Vice President of Global Go-To-Market at SAP Concur.


Robert Baca 

Robert leads the strategy and execution for the technical infrastructure at Medallia. Robert has over 20 years of experience in managing technical operations, cloud operations, cloud engineering, Dev Ops, and QA. Prior to Medallia, he was the Chief Technology Officer at ICE Mortgage Technology. Robert is passionate about incorporating next-generation technology such as natural language processing to help customers succeed in the digital age, while focusing on collaboration and quality.


Ashwin Ballal

Ashwin is Medallia’s first ever CIO, responsible for global corporate IT, workplace services and procurement. Previously, Ashwin was at KLA, a semiconductor capital equipment company and held various leadership roles including CIO & Data Officer, General Manager, President and Managing Director for KLA India. Also, he has held various senior management positions at Electroglas Inc., Keithley Instruments, and Noran Instruments.

EVP, Chief Legal Officer

Hanna Steinbach

Hanna leads the Legal team for Medallia. Prior to joining Medallia in 2015, Hanna spent several years at law firms in three different countries focusing on a broad range of legal areas. She also worked at WIPO (World Intellectual Property Organization), a specialized agency of the United Nations, as a direct appointee by the German government. Hanna holds law degrees from the University of Vienna, Stockholm University and UC Berkeley School of Law.

EVP, Strategy and Corporate Development

Alex Glanz

Alex leads strategy, corporate development, and business development. Since joining the company in 2015, he has built a consistent track record of executing growth and innovation strategies to accelerate Medallia’s market leadership. Prior to Medallia, he held technical underwriting and business development leadership roles at Chubb. Alex holds an MBA from UCLA Anderson and a bachelor’s degree from McGill University.


Stefanie Wittner

Stefanie leads the People and Culture function at Medallia, bringing more than 20 years of experience to the role.  Since joining Medallia in 2017, she has been leading functions within the People and Culture team, before stepping into the Chief People Officer role.

Prior to Medallia, Stefanie has built a career as a People Leader with comprehensive experience in high-growth SaaS environments, to Fortune 500 companies within the Silicon Valley.  Stefanie holds an MBA in Human Resource Management from California State University, Hayward.


Tim Duranleau 

Tim leads the global marketing team at Medallia. Since joining the team in 2019, he has led various functions within marketing and operations and is passionate about bolstering Medallia’s market leadership through brand awareness and demand generation. Prior to Medallia, he held various marketing and leadership roles at CallidusCloud, leading to acquisition by SAP. Tim holds a bachelor's degree in marketing from San Jose State University.