Yaacov Cohen
Co-Founder and Chief Executive Officer

Yaacov Cohen is Co-Founder and Social CEO of harmon.ie (previously known as Mainsoft) since 1999. A collaboration visionary, he believes in keeping it human.

Technology needs to enhance our human interactions, not consume them. Yaacov and his team have eloquently combined human interaction and technology with harmon.ie, which transforms email into a collaboration console. He has presented at numerous collaboration conferences and was recently featured in Forbes.         

Roy Sheinfeld
Co-founder and Chief Technology Officer

Roy Sheinfeld is co-founder and harmon.ie’s Chief Technology Officer. Previously, Sheinfeld served as Vice President of R&D and Director of Product Management, responsible for defining and managing harmon.ie and Mainsoft product requirements and specifications.
Before joining harmon.ie, Sheinfeld worked as a team leader and developer at Sela Software Labs, building products and solutions in different platforms such as .NET Framework, Java and Object-Oriented C++.

David Lavenda
Vice President of Product Strategy

For the past 20 years, David has served as an executive for a number of high-tech companies. After completing a undergraduate degree in Physics, advanced studies in Electrical Engineering, and an MBA in Marketing, David co-founded Business Layers, an identity management company, serving as VP Marketing and Product Strategy from its inception until the company's successful sale five years later.
Additional stints as VP of Marketing and Product Strategy for several successful high-tech companies followed.
David is a frequent contributor to Fast Company and CMSwire. He has recently completed a graduate degree in Science, Technology, and Society, focusing his research on information overload. He is also an International Scholar for the Society for the History of Technology.


Avi Mileguir
General Manager and Vice President of Sales, Americas

Avi brings over 15 years of experience in sales and sales management of enterprise software solutions. Through his leadership, Avi has led sales teams to double digit year-over-year sales growth.
Prior to harmon.ie, Avi held senior sales positions at Top Image Systems (NASDAQ: TISA) and Comverse (NASDAQ: CNSI), as well as various roles at ClickSoftware (NASDAQ:CKSW), including VP Sales West Region.  Avi began his professional career in the Israeli Air Force R&D department; part of the pioneer team that built the first unmanned aerial vehicle (UAV) squadrons.

Ran Shribman
General Manager and Vice President of Sales, EMEA

Ran brings to harmon.ie over 15 years’ experience in sales and sales management of Enterprise Software Solutions, developing business from scratch both in Europe and Asia Pacific.

Recently he held senior sales positions at ActionBase Software Solutions, WorkLight Inc and Cognitens. Prior to this, Ran held various roles at Dassault Systems’, including VP Sales where he was responsible for sales globally of the SmarTeam business.

Ron Johnsen
Vice President of Technical Services

Ron brings more than 15 years of experience in the high technology industry. He is responsible for driving harmon.ie's customer-centric methodology by building a world-class customer services organization and expanding its consulting services business.

Since joining harmon.ie in 1999 as a Technical Account Manager, Johnsen advanced from Technical Account Manager to harmon.ie's Director of Services in January 2001. He became Vice President in April 2003. Prior to joining harmon.ie, Johnsen worked for Synopsys Corporation where he held several positions in Product Development, Technical Marketing and Application Engineering. 

Moshe Ziberski
Vice President of Finance and Operation

Moshe is responsible for all worldwide financial and operation management including business planning, legal affairs, reporting, financial and risk management, Global IT and logistics.

Prior to joining harmon.ie in 2011, Mr. Ziberski was International Finance Director at Retalix, a leading provider of software products and services for large retailers. Before joining Retalix Moshe served among other senior positions as Corporate Finance Director in Magic Software Enterprises an international Israeli based software leading provider.

Mr. Ziberski holds a Bachelor degree in Economics from Ruppin Academic Center and MBA from the College of Management in Israel.

Lilit Hagemeier
Vice President of Human Resources

Lilit manages harmon.ie's Human Resources team. Lilit brings 10 years of international HR management experience, with a proven history of managerial and project management proficiencies.
Prior to harmon.ie, Lilit was HR Manager for Exent Technologies, a game developer, and Zlango, a provider of enhanced text messaging solutions. Previously, Lilit was a training manager at Cellcom, Israel's largest telecommunication company.
Lilit holds a Master degree (MA) in Human Resources Management from the Tel Aviv University, and a bachelor's degree (BA) in Business Management.