Growth & CRO practitioner connecting customer behavior, experimentation, and commercial execution across Germany and Vietnam.
My work connects customer behavior, experimentation, and commercial execution. At audibene in Berlin, I worked on 200+ A/B tests across 11 markets. In Vietnam, I built and led Marketing and Sales operations at Clevermann, then applied that experience to premium real estate at Tâm Phát Real.
My MSc in Economic Behavior & Governance at the University of Kassel shapes how I approach these questions: understand the context, test an idea, and examine the outcome.
I also bring this practice into advisory and teaching, including online marketing at DCI in Berlin and guest lectures in MBA Digital Marketing.
International markets involved in CRO and experimentation at audibene.
A/B experiments exploring customer behavior and conversion.
People across Marketing, Sales, and B2B Sales at Clevermann.
At audibene, I worked on 200+ A/B tests across 11 markets, turning customer behavior into hypotheses and testing messaging, trust, and questionnaire flow. Winning ideas were assessed in their local context before wider rollout.
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I led Marketing and Sales across acquisition, consultation, nurturing, and reactivation. An organization of around 20 people ran 86+ tests over three years, averaging about 20 contracts per month and approximately VND 4.1B in monthly contract value.
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In a competitive premium-property market, I moved toward smaller satellite tests and connected acquisition with lead routing and follow-up. The testing approach reduced CPL by approximately 30%, with no clear decline in lead quality observed during that work.
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In a growth mindset, challenges are exciting rather than threatening.
Whether I'm optimizing a conversion funnel, developing a marketing strategy, or working with a sales team, I start by understanding the problem and the people involved.
Data helps identify opportunities. Experimentation helps test assumptions. The results inform what should be improved, repeated, or scaled.
My experience spans healthcare and hearing care, education and career services, real estate, and media.
Each industry has its own constraints, from regulations and competition to customer expectations and sales cycles. What carries across is the habit of understanding the context before choosing a solution.
My CRO work at audibene covered 11 international markets, including Germany, the US, and several Asian markets. I've also worked directly in marketing, commercial operations, and business development in Germany and Vietnam.
These experiences have taught me to adapt strategies to local behavior and market conditions rather than assuming that one approach works everywhere.
Face reality as it is, not as it was or as you wish it to be.
I worked with Khoa at Audibene, where he was a CRO and Marketing Manager and I was a Marketing Tech Full Stack Engineer — two separate teams that overlapped closely.
Khoa is the most committed person I have worked with. He has a solid business mindset — proven by the businesses he has built and worked across — yet always keeps the team's goals ahead of his own. He owns his decisions regardless of outcome, makes space for others, and is not greedy for credit. Beyond that, he is naturally good at building connections, positive to work with, and easy to approach.
If you're looking for someone knowledgeable yet receptive, reliable and genuinely invested in the business goals and people around him, I highly recommend Khoa.
Khoa is a master networker and leader.
Khoa and I have collaborated in multiple projects together, but the one that stood out the most is when I visited HCMC, Vietnam as a guest lecturer with a delegation of 10 MBA students from a German University. From preparation, organisation, and connecting us with different Vietnamese Universities - Khoa and his team supported us from A-Z leaving no questions open. During the trip he accompanied us to the schools and hosted our group in his company for a knowledge exchange. His knowledge about Vietnam and Germany economics, education, and law.
Thank you so much and I look forward to more collaborations in the future.
It's my pleasure to write a recommendation for Khoa. I've had the absolute joy of working alongside him at Audibene, where he has been an invaluable member of our team as a CRO manager
Khoa is a true gem, bringing a blend of expertise, enthusiasm, and camaraderie that makes him a delight to work with. His technical prowess in understanding product is remarkable, effortlessly tackling complex challenges with innovative solutions. And his communication skills are top-notch, able to bridge the gap between technical jargon and layman's terms with ease.
Khoa a team player at heart, always lending a helping hand and fostering a collaborative spirit. His positive attitude and infectious energy make him a ray of sunshine in the workplace.
Khoa is a well rounded leader when it comes to the business world.
I got the opportunity to know Khoa when I was a member of thesis jury at his university and I have been impressed by his leadership since that day. Khoa has drive, intelligence, and a great attitude to get to where he is today.
During the past 10 years, I have seen significant achievements in his professional life, as well as his contributions to the society and community. I believe that Khoa possessed many essential qualities to be successful and he is really a valuable asset to any firm.
Roles, growth challenges, or teaching invitations — I'd be glad to hear from you.
