Our executive team

Simon Khalaf

Simon is Marqeta’s Chief Executive Officer, leading the company’s strategic direction, development and delivery of the company’s products. Simon is a veteran product leader, entrepreneur and investor with over 25 years of experience in B2C and B2B companies. He’s passionate about building, scaling and distributing products that have the power to delight hundreds of millions of consumers, businesses and developers. 

Simon has a keen ability to work with diverse teams of all sizes, from small startups to large, multi-thousand-person global teams. He is a team builder and player who is always focused on attracting, mentoring and learning from top talent. Simon invests in the growth and success of his team members and colleagues. 

“Marqeta is the engine and developer-focused platform behind the brands that are revolutionizing the payments industry. We empower innovation internally and focus on delivering disruptive products that enable our customers to build solutions that change the way money moves.”

Prior to Marqeta, Simon played a key role in helping to build four different companies from scratch, including Flurry, Inc, which was acquired by Yahoo, where he was the CEO. He’s also held a number of leadership roles at Twilio, Yahoo, Novell, and Worldtalk. Simon graduated from Syracuse University with a Master of Science in Electrical Engineering and also has a Bachelor of Engineering degree with a major in Electrical Engineering from the American University of Beirut.

Randy Kern

Randy Kern is Marqeta’s Chief Technology Officer, responsible for scaling the global engineering team and driving technological advancements across the company. He brings decades of engineering experience to Marqeta.

"Marqeta’s innovative API-led approach is challenging the status quo in payments. This is a company building mission-critical infrastructure that’s solving complex problems in global money movement."

Before Marqeta, Kern spent seven years at Salesforce, where he held the Chief Customer Technology Officer and Executive Vice President of Infrastructure Engineering roles. While at Salesforce he was responsible for building out a unified tech infrastructure to support the company’s industry-leading enterprise cloud products. Prior to joining Salesforce, he spent several years at Microsoft, most recently as Partner Director of Development. At Microsoft, he led development for its Azure Compute team and in his time at the company had a focus on highly technical engineering projects, working on many of Microsoft’s most popular products, including Bing.

Sunaina (Suni) Lobo

Suni is Marqeta’s Chief Human Resources Officer, leading the company’s People and Culture function globally. Suni is a Global People and HR leader, with a keen ability to align People and business strategies. She coaches human resources, business leaders, and C-suite executives to achieve their highest potential and is capable of leading through accelerated growth, rapid change, and transitioning organizations into highly effective, top performers. Suni has lived, worked and excelled in a number of countries and cultures.Suni has an excellent balance of strategic focus along with operational delivery and superior business consultation and coaching skills in complex transformation scenarios. She also has an eye for talent and is focused on developing HR and business leaders, to achieve their highest potential.

"At Marqeta, we put a strong emphasis on inclusion and creating a sense of innovation, purpose and belonging. Individuals are empowered to take risks, push boundaries, and do the best work of their lives."

Prior to Marqeta, Suni held a number of senior HR and Business leadership positions at Navis LLC, SVB Financial Services, Cisco Systems, ANZ Bank and Standard Chartered Bank – in the US, Australia, New Zealand, India, Singapore, London and China. Suni has Bachelors and Masters Degrees in Accounting, an Advanced Masters in Human Resources and OD and is a certified coach. She is an accomplished speaker and published author.

Mike Milotich

Mike Milotich is Marqeta’s Chief Financial Officer, leading the financial planning, corporate development, accounting, settlement and investor relations functions at the company. Prior to joining Marqeta, Mike was the Senior Vice President of Corporate Finance and Investor Relations at Visa, responsible for understanding Visa’s business and financial performance, managing the corporate outlook, evaluating M&A opportunities and communicating with the global investor community.

"Marqeta is helping innovators build and deliver the future of payments at global scale. Our strong customer centricity will continue to propel us forward and help capture the massive opportunity in front of us for years to come."

Prior to Visa, Mike worked at PayPal and American Express in business analysis roles supporting new product launches, product portfolio strategy, partner pricing and cost optimization. Mike holds a bachelor’s degree from the University of California, Santa Barbara and a MBA from New York University. Mike lives in the Bay Area and enjoys spending time with family and friends, loves a great meal and is an avid sports fan.

Our board of directors

Jason Gardner

Founder and Executive Chairman

Mr. Gardner founded Marqeta and has served as our Chief Executive Officer and as a member of our board of directors since November 2010. He also serves as Chairperson of our board of directors. Prior to founding Marqeta, Mr. Gardner co-founded PropertyBridge, Inc., a rent and lease-related platform that was acquired by MoneyGram International, Inc. in October 2007, and served as its Vice President from August 2008 to December 2009, Vice President of Business Development from October 2007 to July 2008, and President from May 2004 to October 2007. From June 2002 to May 2004, Mr. Gardner was the Director of Sales for The 451 Group, a technology research group. Mr. Gardner also founded Vertical Think, Inc., an IT management company, and served as its Chief Executive Officer from January 1999 to January 2002. Mr. Gardner holds a Bachelor of Arts in Political Science from Arizona State University.

Jason Gardner

Judson (Jud) C. Linville

Senior Advisor – General Atlantic LLC

Mr. Linville has served as a member of our board of directors since May 2020. Since October 2019, Mr. Linville has served as a Senior Advisor at General Atlantic LLC, a global growth equity firm. He previously served as the Chief Executive Officer of Global Cards and Consumer Services at Citigroup Inc., a publicly traded global financial services institution, from November 2010 to September 2018. Prior to joining Citigroup, Mr. Linville served in various leadership roles at American Express Company, a publicly traded multinational financial services corporation, from October 1989 to October 2010, including as President and Chief Executive Officer of Consumer Services, President of the U.S. Consumer Card Services Group and President of Corporate Services.

Mr. Linville currently serves as a member of the Board of Visitors of Duke University’s Fuqua School of Business and as a member of the Board of Trustees of Lafayette College. Mr. Linville holds a Doctor of Psychology in Clinical Psychology from the College of Medicine at Drexel University and a Bachelor of Arts in Psychology from Lafayette College.


Martha Cummings

Former Executive Vice President – Wells Fargo Bank

Ms. Cummings has served as a member of our board of directors since January 2021. From July 2018 to March 2020, Ms. Cummings served as Executive Vice President, Head of Compliance Strategy & Operations at Wells Fargo Bank N.A., a publicly traded global financial services company. Previously, from October 2012 to June 2018, Ms. Cummings served as Senior Vice President and Senior Supervisory Officer at the Federal Reserve Bank of New York. Ms. Cummings served in several roles with Banco Santander, S.A., a publicly traded multinational financial services company, between October 2006 and September 2012, including Managing Director, Head of North America Financial Sponsors and Managing Director, Chief Risk Officer for Banco Santander S.A., New York Branch, and was Senior Vice President, Latin America Capital Markets Risk from September 1997 to April 2001.

Ms. Cummings holds a Master of Business Administration from the Wharton School of Business and a Master of Arts in International Studies from the Lauder Institute of the University of Pennsylvania, and a Bachelor of Arts in Economics from the University of Minnesota.


Kiran Prasad

Head of Product – Nextdoor

Mr. Prasad has served on our board of directors since September 2022. Since May 2021, Mr. Prasad has served as Head of Product at Nextdoor Holdings, Inc., a publicly traded internet-related services company. He previously served as Vice President of Product for LinkedIn, a networking-focused social media platform and subsidiary of Microsoft Corporation, from January 2018 to April 2021. Prior to that, Mr. Prasad was Vice President of Engineering for LinkedIn from 2014-2017, after serving as Senior Director, Engineering, Mobile from 2011-2014. Mr. Prasad holds a Bachelor of Science degree in Computer Science and Computational Mathematics from Michigan State University and a Master of Science degree in Computer Science from the University of Michigan.

kiran prasad

Gerri Elliott

Chief Sales and Marketing Officer – Cisco

Ms. Elliott has served as a member of our board of directors since April 2021. She has served as Executive Vice President and Chief Customer & Partner Officer at Cisco Systems, Inc., a publicly traded networking technology company, since April 2018. From July 2009 to March 2014, Ms. Elliott held positions of increasing responsibility at Juniper Networks, Inc., a publicly traded networking company, most recently serving as Executive Vice President, Strategic Advisor and Chief Customer Officer. Before joining Juniper Networks, Ms. Elliott held a series of senior executive positions at Microsoft Corporation, a publicly traded technology company, from September 2001 to December 2008, including as Corporate Vice President, Worldwide Public Sector. Prior to Microsoft, Ms. Elliott spent 22 years at International Business Machines Corporation, a publicly traded technology and consulting company, where she held executive and management positions in North America and Asia Pacific in sales, services, consulting, strategy development, and product management.

Ms. Elliott has served on the board of directors of Whirlpool Corporation, a publicly traded home appliances company, since February 2014. Ms. Elliott was previously a director of Marvell Technology Group Ltd., a publicly traded data infrastructure company, from July 2017 to July 2018, Mimecast Limited, a publicly traded cloud services company, from November 2017 to April 2018, Imperva, Inc., a cybersecurity company that was publicly traded until its acquisition by Thoma Bravo in 2019, from August 2015 to May 2018, and Bed Bath & Beyond, Inc., a publicly traded merchandise retailer, from February 2014 to July 2017. Ms. Elliott is the founder of, a website dedicated to executive women who serve or want to serve on corporate boards. Ms. Elliott holds a Bachelor of Arts in Political Science from New York University.


Helen Riley

Chief Financial Officer – X Development LLC

Ms. Riley has served as a member of our board of directors since May 2020. Since June 2015, Ms. Riley has served as the Chief Financial Officer at X Development LLC, a research and development company and subsidiary of Alphabet Inc., a publicly traded internet-related services and products company. From 2011 to 2015, Ms. Riley was the Senior Finance Director of Global Marketing and Global General Administration at Google LLC, a multinational technology company and subsidiary of Alphabet Inc. Ms. Riley held various other positions in finance at Google from 2003 to 2011.

Ms. Riley currently serves on the board of directors of Eventbrite Inc., a publicly traded global service ticketing platform. She also serves on the board of directors of WildAid, a wildlife conservation non-profit organization. Ms. Riley holds a Master of Business Administration from Harvard Business School and a Bachelor of Arts in Philosophy, Politics and Economics and a Master of Arts from the University of Oxford.


Arnon Dinur

Partner – 83 North

Mr. Dinur has served as a member of our board of directors since September 2013. Since June 2009, Mr. Dinur has served as a Partner at 83North, a venture capital firm. Previously, from November 2006 to June 2009, Mr. Dinur led mobile strategy at SanDisk Corporation, a publicly traded Flash memory card company, as Senior Vice President after joining SanDisk Corporation in connection with the acquisition of Msystems Ltd, in 2006. From July 2002 to November 2006, Mr. Dinur served in several roles, including Senior Vice President of Strategy and M&A and Corporate Vice President and General Manager of the DiskOnKey division, at Msystems, a producer of flash memory storage products.

Mr. Dinur currently serves on the board of directors of a number of privately held companies. Mr. Dinur holds a Master of Business Administration from the University of Texas at Austin and a Bachelor of Laws and a Bachelor of Arts in Accounting from Tel Aviv University.


Godfrey Sullivan

Former President and CEO - Splunk, Inc.

Mr. Sullivan has served on our board of directors since May 2021. Mr. Sullivan previously served as President and Chief Executive Officer of Splunk, Inc., a publicly traded big data company, from September 2008 to November 2015. Prior to Splunk, Mr. Sullivan held several executive roles at Hyperion Solutions Corporation, a performance management software company acquired by Oracle Corporation in April 2007, most recently as President and Chief Executive Officer from October 2001 to April 2007. Mr. Sullivan has served as a member of the board of directors of CrowdStrike Holdings, Inc., a publicly traded cybersecurity company, since December 2017, Ring Central, Inc., a publicly traded software-as-a-service solutions provider, since April 2019, and Gitlab Inc., a publicly traded devops platform company, since January 2020.

Mr. Sullivan previously served on the board of directors of Splunk, Inc. from December 2011 to June 2019, including as chairman of the board of directors from December 2011 until March 2019, Citrix Systems, Inc., a publicly traded enterprise software company, from February 2005 to June 2018, and Informatica Corporation, a publicly traded software development company, from January 2008 to June 2013. Mr. Sullivan holds a Bachelor of Business Administration in Real Estate and Economics from the Hankamer School of Business at Baylor University.

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