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How do you build products in the middle of an AI tornado, stay ahead of rapidly evolving technologies, and lead teams through uncertainty? Aparna Sinha, SVP of Product at Vercel, shares her playbook for navigating the future of product development in the AI era.
Host Francois Ajenstat kicks off the conversation by exploring how Aparna’s unconventional journey has shaped the leadership approach she brings to her daily work at Vercel. Aparna also reflects on the early days of Kubernetes, her time at McKinsey, and what it means to go from building for users to building with users.
You’ll hear how Vercel is redefining developer experience with frameworks like Next.js and tools like v0, and why product agility, not long-term roadmaps, is now the cornerstone of innovation. Francois and Aparna also cover future challenges and opportunities enterprises are facing as a result of unfaltering AI usage.
Whether you’re shipping code in the AI era or leading platform strategy at scale, this episode delivers hard-won lessons on product velocity, strategic clarity, and building what’s next.
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Guest Bio
Aparna Sinha is Senior Vice President of Product at Vercel, where she leads product strategy across performance, developer experience, and AI-driven tooling. With over a decade of experience building developer platforms, she is known for bridging cutting-edge infrastructure with intuitive product design.
Previously, Aparna spent nearly ten years at Google, leading teams behind Google Kubernetes Engine (GKE) and developer tools for Google Cloud. She holds a PhD in Electrical Engineering from Stanford University and advises startups through Pear VC, with a focus on AI/ML, cloud, and dev tools.
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Guest Quote
“My passion is technology, and that often starts with understanding what the fundamental breakthrough is. Once I understand that, it becomes a lot easier to talk to a customer about what it could mean for them. That requires sitting in their shoes, really knowing their environment, their goals, and the pressures they face. Then you marry that technical insight to user need, and that’s where the real value gets created.” – Aparna Sinha
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Time Stamps
00:00 Episode Start
01:50 Aparna's unconventional career path
06:20 Applying lessons from the cloud revolution to today's world
11:45 Finding your passion
16:20 Vercel's journey from Next.js to V0
19:10 Staying in touch with what is now
20:45 Roadmaps are no longer written in pen
23:00 Leapfrogging of models
28:00 Aparna's "Oh Sh*t Moment"
34:00 Advice for building in the AI era
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Is it possible to build and scale AI tooling for one of the world’s most risk-averse industries while instilling trust in your users? Today on Next Gen Builders, Francois Ajenstat explores just how to do it with Eleanor Lightbody, CEO of Luminance, the pioneer in Legal-Grade™ AI for enterprise.
With 700+ customers in 70+ countries, Eleanor shares how Luminance evolved from early machine learning back in 2015 to where it is today, employing sophisticated AI agents that automate contract review, negotiation, and compliance workflows. Throughout their conversation, Francois and Eleanor highlight different strategies for building user trust. Some are complex: using multiple models at once to check one another’s work and reduce hallucinations. Some are simple: if your models can’t deliver an answer with confidence, let the human know so they can verify.
You’ll also hear Eleanor discuss how her team uses AI across the business, why speed is a competitive advantage, and what it means to lead a global company outside Silicon Valley.
Whether you’re building AI in a high-stakes domain or leading transformation in a legacy industry, this episode offers practical insights on trust, innovation, and scaling with purpose.
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Guest Bio
Eleanor is CEO of Luminance. Formerly a Director at cyber-AI leader Darktrace, she established and scaled Darktrace’s operations in Africa before serving as Global Head of the Darktrace Industrial Division. Eleanor has a wealth of experience in growing technology businesses, having driven Luminance’s global expansion and led the company’s $75 million Series C funding round in 2025. Named in Management Today’s “35 Women Under 35,” Eleanor is also the winner of Law.com’s prestigious ‘Innovation Trailblazer Award.’ She also serves on Luminance’s Board of Directors.
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Guest Quote
“I always ask: why can’t AI do this first? Then we figure out what the human should do. The speed advantage is massive. Not just for delivery, but for getting the feedback loop faster, and that is gonna set you up for success. Speed has always been important, but in this new era that everyone’s operating in, I would say it’s probably one of the most important things.” – Eleanor Lightbody
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Time Stamps
00:00 Episode Start
01:23 What is Luminance?
02:34 Why specialized AI is primed for legal teams
07:20 The largest roadblocks to widespread adoption
09:52 How do you measure success?
11:56 Building confidence across your organization
14:50 Staying ahead of the curve
18:06 Eleanor's journey to Luminance
22:12 Optimize for learning
24:07 Leading globally
26:56 Advice for aspiring CEOs
31:15 Eleanor's "Oh Sh*t Moment"
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How do you bring your entire organization along for the AI ride while inspiring confidence and flexibility amid fast evolution? Hannah Calhoon, VP of AI and Head of AI Innovation at Indeed, shares how she’s helping 11,000 employees embrace AI as a partner in their work.
Host Francois Ajenstat gets things going through an exploration of how AI is currently transforming Indeed in both its offerings and the way its teams work every day. Hannah explains a focus on balancing rapid experimentation with thoughtful change management, and why building role-specific skills has been key to adoption thus far.
You’ll hear how Indeed trains teams across engineering, sales, and marketing to use AI tools effectively, how a “Lego block” approach helps them stay flexible in a fast-moving space, and why human judgment still sits at the center of AI-powered hiring.
Hannah also shares lessons on creating safe spaces for experimentation, overcoming resistance to new tools, and leading large-scale change without losing trust. Whether you’re scaling AI in a global enterprise or navigating your first AI initiatives, this episode offers a practical blueprint for transformation at speed.
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Guest Bio
Hannah is a VP of Product at Indeed, where she leads the AI for Indeed team. Her team focuses on enabling everyone at Indeed to effectively build and use AI tools and preparing the organization for the Future of Work. She also chairs the cross-company AI steering committee, which is tasked with ensuring Indeed is moving quickly and responsibly to deploy AI to drive business outcomes.
Previously, Hannah led Indeed's long-term innovation team and built out Indeed’s GenAI Lab. She has focused her career on building innovation systems that deliver benefits to people's daily lives—initially in pharma and medtech and for the last 10 years in software, with a focus on fintech, legal tech, and HR tech.
Hannah holds degrees from Harvard College and Stanford's Graduate School of Business. She serves as a Venture Partner for Purpose Built Ventures and sits on the board of edtech nonprofit Economic Mobility Systems.
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Guest Quote
"We sort of think of the world like we're building an architecture with Lego blocks. And so you've got your moderation block, and right now we have one or multiple solutions, either first party or third party, for moderation. But we're building the system so that if two years from now there's a much better way to do moderation, we can effectively pull that block out and stick a different block in. So we are architecturally optimizing for flexibility under the assumption that the choice that’s right today is almost certainly not going to be the choice in three years." – Hannah Calhoon
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Time Stamps
00:00 Episode Start
01:25 Hannah's AI role at Indeed
04:45 How to implement AI tooling internally
08:30 Overcoming resistance and gaining trust
11:40 Think of AI strategy like building Lego
13:40 You don't always need the latest and greatest
16:30 Who should be responsible for AI strategy?
18:50 The unintentional impact of AI
21:50 Supercharging humans with AI tools
26:15 Change management in driving AI adoption
29:30 Is the danger of bad actors worth losing sleep over?
35:10 Hannah's "Oh Sh*t Moment"
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How do you cut through the AI noise, build trust in uncertain markets, and lead your marketing organization through constant reinvention? Diego Lomanto, CMO at WRITER, shares his blueprint for enterprise storytelling, customer-centered go-to-market, and scaling AI with impact.
Host Francois Ajenstat opens up the conversation by asking how Diego’s unique journey has led him to where he is today. Making the jump from automation to AI, Diego shares how his time at UiPath shaped his approach to building with speed and rigor.
You’ll hear how WRITER’s marketing team stays agile in a fast-evolving category, why human-led engagement still wins in an AI-first world, and how to empower customers to evangelize change from within.
Diego also shares lessons on hiring for adaptability, partnering deeply with your product teams, and making storytelling a competitive advantage. Whether you’re leading go-to-market for a scaling SaaS company or navigating the enterprise AI wave, this episode delivers practical strategies for marketing leadership in motion.
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Guest Bio
Diego Lomanto is a B2B product and marketing expert with 20 years of experience in global enterprise software. He is currently the CMO at WRITER, where he has been since 2024.
He is adept at building and leading product and marketing organizations and is a graduate of the NYU Stern School of Business with an MBA and a specialization in strategy and marketing. His specialties include B2B and SaaS, strategy and competitive analysis, product innovation and development, go-to-market strategy, brand vision and positioning, and digital marketing.
He is skilled in demand generation and funnel optimization, product marketing, and sales enablement. He also acts as Startup Advisor/Investor.
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Guest Quote
“What I love about what AI has done is, it helps people and companies get started and it helps them scale, and that middle part is where the magic happens. You're giving the humans much more time, bandwidth, and opportunity to focus on the magical part of marketing. The creativity, the story you want to tell, the people-oriented parts of the job. And you're able to do that because AI is giving you the tools to generate a lot of ideas. When you're ready to take something to market, scaling it is so much easier and faster than before.” – Diego Lomanto
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Time Stamps
00:00 Episode Start
01:50 How WRITER is transforming the world
03:50 Diego's journey from automation to AI
06:30 Marketing AI with human success stories
11:45 A commitment to reinvention
14:35 Culture is critical at fast-pace organizations
19:00 Maintaining core principles amidst product evolution
20:40 How WRITER delivers above and beyond
23:30 Merging best in class technology with a forward looking culture
25:30 Real opportunities for AI in marketing
31:30 Product marketing alignment
35:00 Diego's journey to the CMO seat
38:45 Diego's "Oh Sh*t" Moment
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How do great product leaders navigate rapid scaling, the AI evolution, and unpredictable founders? April Underwood, former CPO at Slack and Co-Founder of Adverb Ventures, shares her playbook for building enduring product vision through change.
Francois and April frame their conversation by first exploring her background with hypergrowth orgs such as Twitter and Slack, unpacking key learnings around what it takes to scale your own skills alongside your company. You’ll hear her thoughts around leading with clarity, building trust with your founders, and navigating technology paradigm shifts such as GenAI.
Additionally, April offers sharp insights into how product teams can stay grounded during uncertainty, how design becomes a competitive advantage during inflection points, and what she looks for in early-stage founders as a venture investor. Whether you’re investing in the next unicorn or building it from the ground up, this episode provides grounded frameworks and hard-earned lessons for you to follow.
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Guest Bio
April Underwood is the Managing Director and Co-Founder of Adverb Ventures, with a focus on investing in various sectors and stages such as Future of Work, Consumer Health, and Developer Tools.
She has held significant roles at companies like Slack as Chief Product Officer and Twitter as Director of Product, demonstrating her expertise in product management and strategic partnerships.
Underwood's career highlights include co-founding #ANGELS and Nearby, as well as serving on the boards of Zillow Group and Eventbrite, showcasing her strong leadership skills and strategic vision in the tech industry.
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Guest Quote
“We should all be looking at AI and thinking that if everything we have worked hard to do in the past is now becoming commoditized, then I either need to fire these tools up and get into the mindset of somebody that comes to this with a fresh set of eyes, or I need to be on the side of building tools that are a part of the evolution.” – April Underwood
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Time Stamps
00:00 Episode Start
01:45 April's jump from Twitter to Slack
06:15 Decision making within a hypergrowth organization
09:15 Aligning your organization around the North Star
12:20 Creating a winning Founder-CPO relationship
17:40 How April views the AI future
23:00 AI has created two worlds in Silicon Valley
25:15 The "It-Factor" in emerging startups
30:55 Looking back on April's career trajectory
34:00 The importance of community
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How do top design leaders turn strategic vision into product magic? Yudi Sun of Duolingo joins Francois on this episode of Next Gen Builders to share how design can influence product outcomes, build cross-functional trust, and scale impact.
Their conversation takes a look at the design systems, rituals, and philosophies that supercharge one of the world’s most engaging apps. With prior experience at other brand leaders like Lyft and Cash App, Yudi presents a strong case for how design can operate beyond visuals and become a force for product strategy, organizational alignment, and business growth.
You’ll learn about Yudi’s "60% brain share" framework for team collaboration, how Duolingo runs product reviews directly with the CEO in 10-minute slots, and what it takes for designers to build influence upstream. Whether you’re leading a growth team or launching new features, this episode offers real insights into making design central to product success.
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Guest Bio
Yudi Sun is head of design for Duolingo's Growth org, the team that created the Duolingo streak, leaderboards, friendship mechanics, notifications and more. Before this, she led an app-wide redesign at Cash App, created products for drivers at Lyft, and started her career as an illustrator.
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Guest Quote
“Design is at the forefront of our ability to build products. It really occupies just about the same role as a product lead does. And it's usually part of the perfect trio of engineering, product, and design when it comes to figuring out what are we trying to do, how are we going to get there, and what does good look like.” – Yudi Sun
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Time Stamps
00:00 Episode Start
02:20 The role of design inside Duolingo
4:50 Sharing tasks & goals to collaborate effectively
08:25 How to implement this strategy
11:35 Is misalignment inevitable at some point?
15:45 Yudi's definition of craft
18:15 Where Duolingo sits on the design spectrum
21:30 What a more traditional company can take from Duolingo's approach
26:00 Making decisions for all to see
35:50 Yudi's "Oh Sh*t" Moment
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What does it really take to build, ship, and scale AI fast? Today on Next Gen Builders, Francois is joined by Daniel Sternberg, former Head of Data at Notion and Gusto, who shares lessons learned from the development of Notion AI and the evolving role of data leadership in AI-first organizations.
Daniel offers an inside look at Notion AI’s rapid development, revealing how a CEO-driven push transformed into a revenue-generating product just a month after ChatGPT launched. He highlights the importance of balancing excitement about these new AI tools with a clear understanding of their limitations. Daniel also encourages organizations to adopt AI broadly, not just within specialized teams.
Daniel & Francois also explore the evolving role of data leadership in SaaS, emphasizing why data teams need to move beyond being simple service providers. Whether you’re leading AI projects or building data-driven products, Daniel’s insights provide valuable guidance for leaders navigating the fast-changing AI landscape.
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Guest Bio
Daniel Sternberg is a seasoned data science and AI executive. He currently advises startups as a fractional data and AI executive, helping organizations build high-performing data teams and leverage AI for product and operational excellence. Prior, he served as Head of Data at Notion where he guided the company through a period of rapid user growth and pioneered the launch of advanced AI-powered features.
His leadership was instrumental in scaling Notion’s data infrastructure and integrating generative AI capabilities into the platform, supporting both product innovation and business expansion. His career is marked by a commitment to data-driven decision-making, technical leadership, and the thoughtful integration of AI into everyday tools.
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Guest Quote
"There's this idea that AI features can be prioritized and shipped like any other product feature, but there's an added dimension: does it actually work? You don't know if it works until you build it. So you should never promise a ship date until you're confident in the quality. The tech has to prove itself first, and only then should you align marketing or product engineering behind it." – Daniel Sternberg
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Time Stamps
00:00 Episode Start
02:00 The role of a SaaS data leader
07:40 How the data function will evolve
16:40 Building Notion AI
20:40 Launching with a flood of interest
22:50 Don't quit while you're ahead
24:45 The power of a CEO Founder
27:30 Prioritizing speed and flexibility
31:10 Lessons learned from the Notion AI launch
27:20 Democratizing AI responsibility
40:55 Daniel's "Oh Sh*t Moment"
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Today on Next Gen Builders, Francois welcomes Brent Smart, the CMO at Australian Telco giant, Telstra. Their conversation focuses on the power of brand as Brent has been the leading charge behind Telstra’s new brand platform.
Throughout the episode, Brent argues for connecting your marketing efforts to the real world. When trying to evaluate how Telstra appeared to consumers, his team ran surveys asking Australians to draw, not write, what they thought of the organization. Similarly, he consistently advocates for running live experiments to validate your approaches in real time.
The episode also explores how Brent aligns teams around a unified brand vision with tools created in house, such as “Telstra’s Creative Dial,” to help measure and guide creative output. He stresses the value of a distinct brand voice and explains why starting with a small, focused team helps nurture new ideas.
Drawing on his transition from agency life to leading Telstra’s marketing, Brent offers a fresh perspective on keeping creativity alive in a corporate setting. His commitment to hands-on idea generation and real-world testing over pre-market research makes this episode essential for anyone seeking meaningful brand transformation.
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Guest Bio
A leading global marketer and a passionate speaker on creativity, brand and culture, Brent Smart is Chief Marketing Officer of Australia's second most valuable brand, Telstra.
Previously, Brent spent five years as CMO of Australian insurance giant IAG, where his work on NRMA Insurance took it from 36th strongest brand in Australia to 5th, winning 3 Gold effectiveness awards and the coveted Grand Effie in 2021. Mark Ritson wrote that “NRMA is not just a fantastic Australian case study, it could be taught at Harvard or Stanford and positions Brent Smart as the most accomplished CMO in Australia and one of the best in the world”.
Before becoming a marketer, Brent spent 20 years in the advertising business, leading New Zealand Agency of the Decade Colenso BBDO and rising to CEO of Saatchi and Saatchi New York, winning many Cannes Lions and other global creative awards.
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Guest Quote
“ Brand is a multiplier for performance marketing. When the brand is strong, the performance marketing actually works better. We've seen our short term ROIs actually go up, not go down. The brand doesn't just help with this quarter's numbers, it helps with next quarter’s and beyond. And once you give it time to start building, you can start showing that not just the brand metrics are healthy, also our short term performance metrics are healthy. But you need time. It's not gonna show in the first quarter. You gotta wait.” – Brent Smart
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Time Stamps
00:00 Episode Start
2:00 The power of brand
05:10 Evaluating your brand
08:35 Finding your brand voice
12:10 Building conviction within your organization
15:05 Start experimenting in the real world
17:40 Leading by doing
19:45 Taxi or Bus Meeting
22:00 What does a good pitch feel like?
27:35 Discipline liberates creativity
30:00 Can you teach taste?
34:20 Brent's journey to CMO
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Today on Next Gen Builders, Francois speaks with Edik Mitelman, SVP & General Manager of AppsFlyer Privacy Cloud, the trusted open platform for ecosystem collaboration and innovation with a clear mission: Enhancing end-users experience, while preserving their privacy.
Their conversation covers the challenges and strategies for building a startup within a larger organization, and why you would even do it in the first place. Edik highlights how a smaller, resource-limited team can align themselves much closer with their users, ensuring each line of code they produce serves a clear purpose.
Francois & Edik also touch on the role Product Managers should be serving within organizations and how they compare and contrast across various company sizes. One glaring similarity in Edik’s mind? The importance of maintaining a beginner’s mindset. In his words “ experience is important…but we as product managers must assume that we don't know and we need to test our hypotheses.”
Finally, Edik shares his thoughts around risk and failure. He stresses that more organizations should be comfortable with potential failure in order to foster an environment full of experimentation. Through each iteration, your team will gain learned experiences that will lay the groundwork for your next big success.
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AppsFlyer Update
Since we recorded this episode, the journey Edik discusses of building what's essentially a startup within AppsFlyer is bearing fruit, with AppsFlyer's Data Collaboration Platform being used across several industries -- including quick commerce, consumer packaged goods, and financial services. The results for early adopters are impressive: marketing campaigns for brands using the product have seen up to 400% return on their ad spend and significant performance uplifts for their businesses. The partnerships embody what we talked about regarding the advantages of building a startup within an established company — leveraging AppsFlyer's resources, credibility and relationships while maintaining the innovative spirit and customer focus that drives true product-market fit. It's a real-world example of transforming concept into practice, process into product, and experience into measurable success.
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Guest Bio
Edik Mitelman is the General Manager of Privacy Cloud at AppsFlyer, an ecosystem collaboration and innovation environment which preserves end-user privacy. Edik is an experienced executive with previous leadership roles at Autodesk, Wochit, and Conduit. He also runs the Venture Creation and Product Innovation program as part of the GMBA at Reichman University.
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Guest Quote
”As product managers, we must do what customers need. So if you sold it and you don't care anymore, you will never care for that customer any longer, until maybe the renewal time comes up. I want my PMs to constantly worry about their customers, and to constantly deliver value throughout the year. So that people use our products more and more.” – Edik Mitelman
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Time Stamps
00:00 Episode Start
01:45 When Edik left engineering for product
03:50 Maintaining a beginner's mindset
05:20 How the role of product varies between organizations
08:25 Building multiple startups within a single orga nization
10:15 Edik's work on AppsFlyer Privacy Cloud
13:45 The advantages that come from a startup mentality
17:05 Measuring success
20:55 Ensuring your team is rowing together
24:40 Failure breeds success
32:45 Are GMs for everyone?
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Welcome to Season 02 of Next Gen Builders! Today, Francois sits down with fellow podcast host Carlos Gonzalez de Villaumbrosia, Founder & CEO of Product School, the global leader in Product Management training. Their conversation covers how Carlos scaled Product School from the ground up, why community building has been a key factor in his success, and what truly makes a great product leader.
Carlos founded Product School in 2014 with a vision of democratizing access to education and has since grown the community to over 2M members. He reflects upon what ingredients have led to the organization’s success alongside what he may have done differently if given the opportunity again. Ultimately though, Product School is proof that community matters regardless of the business you are in.
Additionally, Francois and Carlos talk about The Product Podcast and how impactful it has been in tandem with Product School. With over 260 interviews featuring product executives from brands such as Nike, the NBA, Duolingo, and Amplitude, Carlos has had the opportunity to truly understand the makeup of a great product leader. So right after tuning into Next Gen Builders, check out The Product Podcast!
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Guest Bio
Carlos Gonzalez de Villaumbrosia is an entrepreneur with over 15 years of experience building global companies and digital products.
He founded Product School in 2014, which is the global leader in product training with a community of over two million members. All of Product School's instructors are real-world Product Leaders working at top Silicon Valley companies including Google, Meta, Netflix, Airbnb, Uber, and Amazon. Prior to Product School, he founded Floqq, the largest online education marketplace in Spanish and Portuguese at the time. Floqq joined the 500 Startups and Startup Chile accelerator programs.
Additionally, Carlos co-authored the Amazon bestseller The Product Book, and has participated as a speaker in more than 1,000 events, conferences, and classes around the world. Outside of work, he loves skiing and playing tennis.
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Guest Quote
" Community is a term that is now being overused and sometimes misunderstood as,
‘Oh, let's just start giving something away with an expectation of getting something in return.’
And I think that kind of defeats the definition of a community. True, you as a business need to have a business model to keep the lights on and grow, but building a community to me is a strategy, it's not a tactic. To me that meant I'm going to build something for the long term. I have a mission which is helping people build better products and democratize access to education in ways that some of the people that actually benefit from the community might never be able to pay economically.
And I'm okay with that. And so it starts from that mindset, without obviously forgetting about the business model. That is how I think of community, as a strategy.” – Carlos Gonzalez de Villaumbrosia
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Time Stamps
00:00 Episode Start
01:45 What is Product School?
04:00 How Carlos was able to scale
08:05 Lessons learned along the way
10:55 Creating & measuring meaningful communities
14:30 The Product Podcast
18:00 What makes a great product leader
21:10 Transforming with AI effectively
26:20 Overcoming doubts and hesitations
29:40 Carlos' advice for others leaning into innovations
33:20 Maintaining flexibility throughout a transformation
34:50 What Product School is focused on in 2025
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