Executive management

Peter Chapman is CEO, President, and Chairman of the Board of IonQ. Prior to joining IonQ, Mr. Chapman was Director of Engineering for Amazon Prime, where he led the team responsible for Prime’s 2-Day delivery. He has over 40 years of leadership in software engineering, including alongside luminaries like Marvin Minsky and Ray Kurzweil. Mr. Chapman is credited with inventing the original sound card for computers, writing the software the Federal Aviation Administration uses to prevent mid-air collisions, and developing systems that protect the integrity of financial markets. Mr. Chapman has founded and led several companies to successful exits. He has served as IonQ’s president and chief executive officer and a member of its board of directors since May 2019.

Thomas Kramer is the Chief Financial Officer at IonQ. Mr. Kramer is an experienced Chief Financial Officer with an extensive background leading companies through rapid growth. At IonQ, Mr. Kramer focuses on commercializing our infrastructure and managing the company's relationships with investors and the public markets. He sits on the boards of PerfectServe, Peak Dental Systems, and MindsMatter DC. Previously, Mr. Kramer was the CFO of Opower, where he guided the company through its initial public offering and its sale later to Oracle; and co-founder and CFO of Cvent, where he took the company from zero revenue through the largest private software financing in the United States at that time. Mr. Kramer has served as IonQ’s Chief Financial Officer since February 2021.

Stacey Giamalis is a business and technology lawyer with over 20 years of experience inhouse, mostly with public companies. She has been the chief legal counsel of 6 technology companies in various sectors including enterprise software, SaaS, online marketing, and search. As chief legal counsel she has taken 3 of her companies public and done 3 sell-side and 5 buy-side mergers/asset deals, including one “jumped” merger deal. Most recently Stacey was the chief legal officer of PagerDuty, Inc., a SaaS digital operations management platform, which went public in 2019 and enjoyed a $5b market cap at its peak.

Stacey earned her Juris Doctor degree from Boalt Hall, U.C. Berkeley School of Law and was a business attorney at Farella, Braun + Martel and at Wilson, Sonsini, Goodrich & Rosati. She has lived and worked internationally, and although born and raised in Palo Alto she is also a citizen of an EU member state.

Rima Alameddine has served as our Chief Revenue Officer since December 2022. Before that, Ms. Alameddine was at Nvidia for almost 7 years. At Nvidia, she built the sales business for the Eastern half of the United States from scratch and then became the Vice President of Enterprise Sales for the Americas across multiple industries. Prior to that she was at Cisco for 18 years in a variety of engineering and sales leadership roles, including Director of Financial Services sales and Director of New York Enterprise sales. Ms. Alameddine holds an M.S. in Computer Engineering from Syracuse University and a B.S. in Computer and Communication Engineering from the American University of Beirut.

Tom Jones joined IonQ in July of 2021 as its first Chief People Officer. Mr. Jones began his career leading HR for startup tech and manufacturing companies before ultimately being acquired by Honeywell. He then joined Microsoft’s global M&A team where he led numerous acquisitions and integrations across all of Microsoft’s business divisions. Mr. Jones eventually left M&A moving in business HR management roles with a highlight being leading HR for Microsoft’s global datacenter infrastructure business during its transition to the cloud. More recently, Mr. Jones served as VP of Human Resources at Jeff Bezos’ aerospace company, Blue Origin, where he also held a US Top Secret/SCI security clearance. Mr. Jones received two undergraduate degrees in Business Administration and Psychology and an MBA from the University of Washington.

Margaret is an accomplished professional with over 25 years of operations, strategy, and marketing experience in the enterprise software and hardware industry.

She spent 20 years at Microsoft in positions of increasing responsibility leading business strategy, product planning, and product marketing in the global Windows, Security, and Cloud & Enterprise business groups.

In her last position at Microsoft, she was responsible for leading the multi-billion-dollar US Microsoft Windows business. She was also tasked with launching the Microsoft Surface hardware business in the US and growing it to over $1B in revenue.

Following her career at Microsoft, Margaret was appointed to the position of Chief Marketing Officer at Outreach, a SaaS startup with a $4.4B valuation, where she led the organization’s marketing department across demand generation, product marketing, brand, PR, and analyst relations. Her team helped establish the SaaS sales engagement category and won the 2020 Forrester Wave Sales Engagement leader ranking with the highest score. Margaret was most recently at Fastly – a publicly-traded network services, security, and edge cloud platform company as their Chief Marketing Officer driving all aspects of marketing. 

Margaret earned a Bachelor of Science in Applied Economics degree from The Wharton School at the University of Pennsylvania and an MBA from the Kellogg School of Management.

Ariel Braunstein is IonQ’s SVP of Product. As an experienced entrepreneur, Ariel brings extensive experience across diverse roles and technology areas, ranging from early startups to Fortune 100 corporations. Most recently, Ariel led Google’s Augmented Reality initiatives and prominent video technologies at YouTube. Prior to that, Ariel co-founded Pure Digital Technologies, which brought to market one of the most successful consumer electronics devices of its era - the Flip Video camcorder. Flip Video became a social phenomenon, selling over 7MM units in under four years, generating over $1B in revenue, and winning IDSA’s (2010) Design of the Decade Award. In 2009, Cisco acquired Pure Digital Technologies, and as part of the acquisition, Ariel became Cisco’s Head of Product for the newly founded consumer business, spearheading an $800MM product portfolio, including Flip, Linksys, and Pure Networks.

Dean Kassmann is SVP of Engineering & Technology at IonQ. Prior to joining IonQ, Dr. Kassmann was Senior Director of Advanced Technology for Blue Origin where he established and led the team responsible for company-wide applied research in support of Blue Origin’s launch vehicle, engines, and in-space product lines. He has over 25 years of leadership in software, hardware, and technology development. Dr. Kassmann has contributed to a variety of technology areas across his career, including traditional chemical engineering, supply chain planning and optimization, rockets, and space research. After getting his Ph.D. in Chemical Engineering, Dr. Kassmann joined Aspen Technology where he created the modeling tools, advanced control algorithms, and planning engines used for real-time operations in refineries, chemical plants, and pharmaceutical manufacturing. At Amazon, he invented the autonomous system that manages order fulfillment flow across Amazon's supply chain. At Blue Origin he grew and led many teams, and was part of the small team that developed the first series of New Shepard rockets that successfully performed the first powered, vertical soft landing from space. He later ran the Flight Sciences organization which developed the initial architecture for the orbital New Glenn rocket. Dr. Kassman went on to establish the first dedicated research and development team within Blue Origin. In that role, he led technology development from early idea generation to fielded capabilities across many different disciplines for Blue’s current and future products. At IonQ, Dr. Kassmann is responsible for all hardware and software development for IonQ’s quantum computers. He oversees hardware development from ions out to enclosures, and software development from cloud down to firmware. He leads the development lifecycle from concept through first and second engineering unit delivery, including the hand-off to manufacturing and production.

Dave Mehuys joined IonQ in March of 2022 as its first VP of Production Engineering, where he is responsible for Manufacturing and Facilities operations. Dr. Mehuys has served in a variety of Engineering and Operations roles in his career, developing and commercializing semiconductor lasers and laser-based sub-systems for Optical Communications and Scientific markets. At quantum computing company PsiQuantum, he was responsible for leading Systems Engineering. At optical networking provider Infinera, he led Systems Manufacturing, Customer Service & Technical Support teams, and Hardware Engineering over an 18-year period. At laser and sub-system supplier SDL, he developed and commercialized high-power single-mode semiconductor lasers, fiber lasers, and Raman/EDFA amplifiers over a 13-year period. Dr. Mehuys holds Masters and Ph.D. degrees from the California Institute of Technology, and an undergraduate degree in Engineering Science from the University of Toronto.

Jordan Shapiro is the VP of Financial Planning & Analysis and Head of Investor Relations and Corporate Development at IonQ. Prior to joining IonQ, Jordan was a technology investor at NEA, one of the world's largest and most active venture capital firms, where he invested in and collaborated with the teams of IonQ, Sprout Social (NASDAQ: SPT), Catalytic (acq. NYSE: PD), Onshape (acq. NASDAQ: PTC), Dandelion Energy, and Tempus, among others.

Jordan graduated with a master's degree in Global Affairs from Tsinghua University, where he was a Schwarzman Scholar in the inaugural class. Jordan received his B.S. in Bioengineering and M.S. in Management Science & Engineering from Stanford University, where he was a Mayfield Fellow, Class President, and Convocation Speaker.