Leadership Team

Mr. Arazi is the Chief Executive Officer of Ceragon Networks. He has rejoined Ceragon as CEO after taking a year and a half break where he served as CFO of privately held software companies in the Cyber and Telecom spaces. Mr. Arazi originally joined the company in 2014 as Executive Vice President and Chief Financial Officer, and in 2016 was appointed Deputy CEO, while continuing to carry the role of Chief Financial Officer. Prior to joining Ceragon, Mr. Arazi had a long, successful career with Amdocs where he managed the business relationship with a U.S. Tier 1 mobile operator and was responsible for hundreds of employees. Prior to Amdocs, Mr. Arazi looked after the financial and growth activities of other high-tech companies in the telecommunications sector, including serving as CFO of Allot Communications and VP of Finance at Verint. Mr. Arazi is a CPA and holds a B.A. degree in Economics and Accounting as well as an MBA degree focusing on Finance and Insurance, both from the Tel Aviv University.

Mr. Ronen Stein joined Ceragon in 2022 and serves as Chief Financial Officer. In this role, Mr. Stein provides financial and strategic leadership and planning to help accelerate Ceragon’s business momentum and deliver profitable growth. Mr. Stein is an accomplished financial executive and business leader with more than twenty years of CFO experience in both private and U.S. listed public companies. Mr. Stein brings extensive experience in mergers and acquisitions in diverse industries, leading transactions from both sides of the table. Most recently, Mr. Stein was CFO of Siklu, an Israel-based company in the telecommunications sector. Prior to that, he served as the CFO of 10bis, Enercon technologies, Knock N'Lock, and Pointer Telocation (Nasdaq: PNTR). Mr. Stein is a Certified Public Accountant in Israel and has a Master of Business Administration (M.B.A.), as well as a bachelor’s degree in economics and accounting, both from Tel Aviv University.

Mr. Oz Zimerman joined Ceragon in 2013 and serves as EVP Corporate Development & CMO. In this role, Mr. Zimerman leads all marketing, business development, M&A, global channels programs and OEM activities. He brings over 20 years of business and marketing experience to the company. From 2008 to 2012, Mr. Zimerman was Corporate VP of Marketing and Business Development at DSP Group (DSPG) where he was responsible for leading the company’s overall marketing activities, M&A as well as supporting its worldwide expansion. Prior to joining DSP Group, Mr. Zimerman was VP Marketing at Comverse (CMVT) where he led global positioning and developed partnerships. Before joining Comverse, he was VP Marketing and Global Channels at ECI Telecom. Preceding ECI, he was Engagement Manager at Shaldor, a leading management consulting firm. Mr. Zimerman holds a B.Sc. in Industrial Engineering & Management from NYU (summa cum laude) and a Master’s degree in Business Administration & Industrial Engineering from Columbia University.

Mr. Alon Klomek joined Ceragon in 2023 and serves as Chief Revenue Officer. Mr. Klomek has extensive experience in successful global sales leadership, customer management, and business management in the global Tech sector. Before joining Ceragon, Mr. Klomek spent ten years at Cellebrite, where he successfully led the company’s transformation from selling hardware to services, and spearheaded the company’s business growth, initially in its international business group and later as Chief Business Officer. Prior to that, Mr. Klomek led a technology start-up, as CEO, and spent ten years at NICE systems where he relocated to the US with his family for multiple years. Mr. Klomek brings a fresh dynamic leadership style, long term vision, and business excellence. He is extremely team and people oriented. Mr. Klomek holds a BA in Economics and Management, and an MBA from the Tel-Aviv College of Management as well as an MBA from NYU.

Mr. Dima Friedman joined Ceragon in 2023 and serves as Chief Operating Officer. Mr. Friedman brings with him over 28 year of experience in business operations including supply chain management, customer service, engineering and corporate quality. Prior to joining Ceragon Mr. Friedman served as Corporate Vice President of Operations (2010-2022) at DSP Group Inc., a publicly traded global leader in wireless communication and voice processing chipsets and algorithms. Mr. Friedman joined DSP Group in 1995 and served in a number of additional capacities including responsibilities for manufacturing engineering, production test engineering, foundry and assembly technology, configuration and lifecycle management, supplier management, product quality and reliability, as well as other business functions. Prior to his extensive career at DSP Group, Mr. Friedman additionally served two years at National Semiconductor. Mr. Friedman has a BSc in Electrical Engineering from Tel Aviv University, and has completed the Senior Executive Education Program at the Coller School of Management, Tel Aviv University.

Michal Goldstein has served as our Chief HR Officer since the start of 2020. Previous to this appointment, Ms. Goldstein served as the Chief Human Resources Officer of Contentsquare, a privately held global software company. Prior to Contentsquare, Ms. Goldstein was Vice President of Human Resources Centers of Excellence at NICE Systems (Nasdaq), as well as served in various Human Resources Business Partner positions at Amdocs, where she spent twelve years, including three years in the company’s Silicon Valley office. Ms. Goldstein has a background in Organizational Development and Consulting, and holds multiple degrees, including; a B.A in Psychology from the University of Haifa, Israel, an M.Sc. in Organizational Psychology from the University of Nottingham, UK, and a Doctor of Management Degree from the University of Hertfordshire, UK, specializing in organizational complexity.

Mr. Ulik Broida joined Ceragon in 2018 and currently serves as Chief Product Officer. Mr. Broida is responsible for product strategy, roadmap, innovation and product management, and leads the company’s Product Management and Global Sales Engineering teams to ultimately support global sales in delivering value to service providers and mission critical private networks worldwide. Mr. Broida brings over 21 years of experience in strategic marketing and product strategy in the Telecom and IIOT industry. Prior to joining Ceragon, Mr. Broida served as the VP Marketing at mPrest, where he was responsible for product management, marketing, and business development. He served as Vice President of Marketing and Business Development at RAD from 2013 to 2016 and held numerous additional prestigious VP product management roles in Wavion (2010-2013), NICE (2006-2010), Alvarion (2000-2006). Mr. Broida holds a B.SC in electrical engineering from the Technion, Israel’s Institute of Technology, and a master’s degree in Business Administration from the Tel Aviv University.

Ms. Hadar Vismunski-Weinberg joined Ceragon in 2023 and serves as Chief Legal Officer. Ms. Vismunski-Weinberg has extensive global leadership experience. Prior to Ceragon, she served as the Bank Corporate Secretary of Bank Leumi Ltd. (2021-2022), as Vice President, Chief General Counsel and Corporate Secretary at Partner Communications Company Ltd. (2017-2021) and held various legal leadership positions at Teva Pharmaceutical Industries Ltd., including VP Legal (2007-2017). In her earlier career, Ms. Vismunski-Weinberg was a partner in an Israeli law firm specializing in commercial and corporate law. Ms. Vismunski-Weinberg holds a Bachelor of Law from The Hebrew University of Jerusalem, and is a member of the Israeli Bar Association since 1999.

Mr. Mario Querner joined Ceragon in 2016 and serves as President of Ceragon in EMEA. Mr. Querner has over 25 years of international business experience in telecommunications and media, working in Europe and Asia. Prior to joining Ceragon, Mr. Querner held the position of Vice President of Asia-Pacific at Newtec, a leading provider for satellite telecommunication solutions. From 2011 to 2013, Mr. Querner served as Head of Region, South East Asia at ECI (optical transmission networks). From 2009 to 2011 he was the Head of Sales at Technicolor, formerly Thomson, in charge of APAC-EMEA for Digital Home Solutions. From 1999 to 2009, Mr. Querner held several management positions at Alcatel-Lucent, the last of which was Managing Director and Country Senior Officer in Indonesia. Mr. Querner has a degree in Electrical Engineering from the University of Applied Science in Braunschweig/Wolfenbuettel (Germany) and a degree in Business Administration from the Brunel University (United Kingdom).

Mr. Ram Prakash Tripathi joined Ceragon in September 2002 and currently serves as President, APAC & India. He has over 25 years of experience in the telecommunications industry with successful track record in working with India’s largest service providers to develop their 4G networks nationwide. Prior to joining Ceragon, Mr. Prakash Tripathi held senior managerial positions at several companies including Stratex and Reliance. Mr. Prakash Tripathi holds a B. Eng in Electronics from the Dr. Babasaheb Ambedkar Marathwada University.

Mr. Carlos Alvarez joined Ceragon Networks in December 2021 and serves as President of the Latin America region. Mr. Alvarez has over 24 years of business experience in telecommunications working across Latin America Region. Mr. Alvarez most recently served as General Manager at TimweTech helping businesses drive digital marketing and fintech strategies. Prior to this, Mr. Alvarez served as Vice President of Caribbean and Latin America region at Amdocs leading the OSS/BSS business. His career also included various positions at Alcatel-Lucent/Nokia, the latest of which was Global Account Manager for the CALA Division. Mr. Alvarez holds an M.B.A. from IESA and has a degree in Electronical Engineering from the UNET in Venezuela.

Mr. Ronen Rotstein joined Ceragon Networks in 2015 and serves as President of Ceragon in North America since 2022. Prior to that Mr. Rotstein held various Finance and Operations positions In Asia, Europe and North America. Most recently he was responsible for Ceragon Business Finance teams across the Americas, while leading the Group’s operations in North America. Mr. Rotstein brings over 20 years of international business and finance experience. Prior to joining Ceragon, he held senior finance positions with Amdocs, and before that was a consultant with PwC in Israel and the UK. He holds a Bachelor’s degree in Accounting from the Tel-Aviv University.