Leadership Team

Home Leadership Team

Jon Roskill

Chief Executive Officer

Jon has 25 years of leadership experience in the software business. He joins Acumatica after a 20-year career at Microsoft where he led efforts in many areas including product development for developer tools, as well as the business operations, strategy, and marketing for all of Microsoft US. Jon’s most recent role was Corporate Vice President for the Worldwide Partner Group where he led a global sales and marketing team of more than 5,000 employees and Microsoft’s 640,000 partners.

Jon has a Bachelor of Applied Science, Computer Engineering, from University of Massachusetts in Amherst, and an MBA from Boston University.


Mike Chtchelkonogov

Founder and Chief Technology Officer

Mike has more than 15 years of experience in software project management, ERP software design and implementation. He was Director of Engineering for Parallels, the leading provider of desktop virtualization, OS containers, and control panel software. He was responsible for the development of Parallels Business Automation line of products. Prior to joining Parallels, Mike was the CTO of SWsoft consulting division, responsible for the implementation of custom ERP solutions and providing customer support.

He received a Master of Science degree (1996) in Applied Mathematics from the Moscow Institute of Physics and Technology.

Kathy Visser-May

Kathy Visser-May

Chief Marketing Officer

Kathy joins us from Microsoft, where she spent the last 10 years, most recently as the Senior Director of Global IT Professional Strategy, driving all aspects of brand, marketing, storytelling and evangelism for the technical audience business. Previously, she led the Marketing Engines and Analytics team for the US Central Marketing Organization where she was responsible for the marketing strategy and execution across all commercial product offerings. She has held leadership positions at PeopleSoft Corporation and Huber Marketing Group.

Nigel LeGresley

Nigel LeGresley

Chief Operating Officer

Nigel has more than 20 years of leadership, financial and operational experience with public and private technology companies. Most recently, he was VP of Finance at Tableau Software where he led the finance and accounting activities, and was a key member of the team who completed the company’s successful initial public offering. Before Tableau, he was Corporate Controller at Isilon Systems, and then EMC Isilon Storage Division after EMC’s acquisition of Isilon. LeGresley started his career at Ernst & Young.

Ali Jani - VP Product Management, Services and Support

Ali Jani

Vice President, Partner Strategy, Enablement, and Services

Ali has 20 years of experience in software industry and a successful track record as a high-tech entrepreneur with multiple successful start-ups. In 2001, Ali founded Everest Software and pioneered the first all-in-one ERP solution for multi-channel small and medium businesses. As founder and VP of Product Management at Everest Software, he was responsible for products and the business direction of the company prior to its successful sale to Versata Software in 2009. Before Everest, Ali founded Accel Inc, a white-box PC Manufacturer; and iCode Inc, an ERP Software Company. ERP solutions built by Ali at iCode provided Accel a scalable solution enabling rapid growth and sale of the $35-million company in 1994.

He graduated from Virginia Tech with two bachelor degrees in Computer Science and Electrical Engineering.


Christian Lindberg

Vice President, Partner Solutions

Christian has more than 20 years of experience with business solution software, selling to and supporting customers and partners developing solutions. Prior to joining Acumatica, Christian was responsible for Solution Sales and Marketing Strategy at Microsoft, within the Microsoft Dynamics Partner team, and was the owner of the Certified for Microsoft Dynamics (CfMD) program and the Dynamics Marketplace. In particular, he focused on partners either building or selling packaged IP products and vertical solutions.

He holds a Bachelor’s degree in Computer Science from the Copenhagen Business School in Denmark.


Laurent Dedenis

President International Operations

Laurent Dedenis has over 20 years of experience in sales and marketing, leading Global team from Asia, Europe and the US. He has served as the President of International Sales and Marketing at Acronis, Inc. since 2011. Prior to that, he was Acronis’s Executive Vice President for APJ and EMEA since 2006. Laurent started his career at Solomon Software (Microsoft Dynamics SL) where he developed Asia from 1997 to 2005 in various leadership position.

Laurent holds a Ph.D. in International Business Administration from the International University of America in San Francisco and a Master’s Degree in Economics and Management from the University of Paris XI in Paris, France.


Sushil Singh

General Manager Asia

Sushil has 15 plus years of experience in the enterprise software space. He joins Acumatica from NetSuite where he was responsible for the business strategy and revenue results of NetSuite’s Global System Integrators including Accenture, Capgemini, Deloitte and the India based outsourcers in Asia Pacific and Japan. Sushil began his career in Audit and is a qualified Australian CPA. He spent 10 years with Microsoft in various channel, product and sales management roles with the Dynamics business, he then joined Swedish ERP vendor HansaWorld, as the General Manager for Asia as well as heading their global channel business.

Sushil has a Bachelor of Commerce degree in Accounting and Information Systems from Curtin University in Australia.


Sean Chatterjee

Vice President, Partner Sales

Sean Chatterjee has more than 15 years of experience in the Business Applications space, but primarily in the ERP market for the SMB. Prior to Acumatica, Sean was the Director of Business Development at Altum, a consulting firm working with the Federal Government and Non Profits. Before Altum, Sean was also part of the team at Sage North America as a National Account Manager and spent close to a decade at Everest Software, developer of a mid-market completely integrated ERP product. In his tenure at Everest, Sean worked in multiple roles – including being the lead Sales Consultant as well as the Director of the New Business Sales Team for North America.

Sean holds a Bachelor of Engineering (BE) Degree in Electronics, from University of Pune, India.