Mike Diamond - Apex Director of Curriculum

Mike Diamond

Co-Founder & Director of Curriculum Development - ieGAT & INSEAD Assessment Instructor

Mike Diamond is Apex’s Head of Instruction and Director of Curriculum Development. Mike comes to the GMAT from the diverse locales of the campaign trail, Wall Street, and the classroom. At Apex, he develops instruction that is designed to be customized to the cognitive profiles of each of our clients, while recognizing and addressing the psychological and emotional components of the GMAT as well. Mike has a strong grounding in advanced mathematical modeling specializing in non-linear mathematics, stochastic calculus and statistical analysis.  

With over 20 years’ experience in test preparation, Mike has personally mentored hundreds of clients to 700+ GMAT scores.

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Marvin Barron

Apex GMAT & EA Instructor

Marvin has over 15 years of experience in wealth management and startups and has a strong skill set which includes strategic planning, team building, financial modelling and analysis. His love for teaching and interacting with ambitious professionals in order to reach their goals is what makes Marvin a great instructor. Having worked with different personalities throughout his career, he has the ability to work with clients from different backgrounds with vastly different needs successfully. As an integral member to the Apex team, Marvin has the capability to understand what clients require to be successful on the test.

His friendly demeanor and clarity of expression prove for an enjoyable process and great GMAT outcomes.

Jaymes Kine

Apex GMAT Instructor

Jaymes Kine is Apex’s international man of mystery. In his 10 years of teaching, he has taught a variety of subjects in locations all around the globe, from marine science in Alaska, to English and math in Spain, to test prep in Israel. At Apex, Jaymes indulges his passion for helping students reach that “ah ha” moment, and his diverse teaching experience helps him connect to people of all skill levels from all backgrounds. He believes that a personal connection between student and teacher is imperative to successful preparation, and strives to make that connection with each of his students, whether in private lessons or a seminar setting.

Christopher Wilson

Apex GMAT & EA Instructor

Christopher joins the Apex Team with over 10 years of experience in education and project management. His clients have ranged from Fortune 50 corporations to undergraduate students. With vast experience in the test preparation industry, Christopher has a deep understanding of the GMAT and prides himself on delivering custom experiences and successful outcomes for his clients.

Over the years, Christopher has found that he prefers to specialize instruction for those to whom it has highest impact and is keen to guide our clients to GMAT successes.

David Chambers

Apex GMAT Instructor

David comes to Apex with over a decade of GMAT experience, and is our man on the ground in London. As one of the most experienced tutors in the GMAT space, his keen intellect and straightforward style has led to successful outcomes on the GMAT for thousands of clients. David holds an MBA from London Business School and a Masters in Chemical Engineering from Cambridge.

Horatiu Stefan

Lead Admissions Consultant

Horatiu Stefan is Apex’s Lead Admissions Consultant. With extensive cross industry, cross functional international business experience, he has held key strategic, operating and advisory roles in Fortune 500 multinationals and Silicon Valley startups. At Apex, Horatiu is a passionate mentor and coach, committed to developing the next generation of leaders. He focuses on advising students with career planning and development, personal branding, interview preparation, resume & cover letter assistance and LinkedIn profile framing.

Horatiu holds an MBA from the Kellogg School of Management and a BA from Swarthmore College and the London School of Economics.

Iva Todorova

Career Development & Apex Economics Instructor

Iva comes to Apex with a strong background in the banking industry, focusing on credit risk and investment banking. With previous experience putting together teams from the hiring to project completion phase she has vast experience when it comes to helping clients frame the best possible narrative for the role that they desire. As a career development addition to the Apex GMAT Admissions Consulting team she focuses on interview preparation as well as career development, taking a very personal approach to aid each client form a compelling narrative based on their skill set and goals.

Before working with us Iva spent over 5 years working for Morgan Stanley where she established and trained a team responsible for a combined portfolio of $38 Billion, and directly oversaw the production of over 250 credit reviews per annum.

David Bernstein

Dr. David Bernstein

Lead Economics Instructor

David is Apex’s lead Economics tutor and has a robust background in the field of study. He has earned a Master of Philosophy in Economics from the University of Oxford and a BA in Mathematics and in Economics from Brandeis University. He is currently in his fifth year as a doctoral candidate at the Department of Economics and the University of Miami. Over the course of his education he has published research in leading economics and econometrics journals including Energy Economics, and Econometrics. His interests in the subject include Energy Economics, Statistical Theory and Financial Economics.

At Apex, David assists clients with general and more advanced economics tutoring including thesis consulting, academic advice and topic and exam preparation. Clients benefit from his depth of understanding of the topics and personable teaching style.

Vasil Genchev

Engagement Manager

Vasil Genchev joins the Apex team as the Academic Engagement Manager. He brings with him more than 5 years of technical customer experience. He also held roles as a business writer covering the financial sector in Bulgaria and has experience studying and working in the Middle East.

In his role, Vasil strives to achieve a positive customer experience for all Apex clients as well as to optimize internal policies and procedures. He manages scheduling, processes payment information and provides administrative support to both clients and instructors.

Natalie Mathews

Director of Marketing

Natalie Mathews joins the Apex team as the Director of Marketing. She has experience working in the USA, Europe and Africa in marketing roles across industries such as tech, pharmaceuticals and property development. She has a passion for delivering the best service to Apex clients and continuously strives to provide our clients with the best experience when engaged with Apex.

In her role she oversees all marketing operations including online, social media and direct marketing, also handling any client queries with regards to our services.

Bhavna Vaid

IT Consultant

Bhavna joined the Apex team in 2019 and is in charge of all IT related matters. She has been IT consultant for over 9 + years and has extensive experience in building/managing softwares, websites and apps for corporations from various industries and has worked for Multi National Companies  like Siemens, HDFC India and NS&I bank in the UK assisting in automating their business processes.

In her role she oversees all the company’s IT needs.