growth minded SUPERHEROES

“People don’t like problems. They prefer solutions.” That simple truth explains why CRO, experimentation, and customer centricity are still so often misunderstood. In this end-of-season roundtable, Shiva Manjunath and Slobodan Manić look back at 2025 together with André and talk openly about what really happened beneath the hype. They discuss why AI created false confidence, why “hacks” refuse to...

Ever felt like the one-person experimentation team , stuck in meetings all day, doing everything yourself, and barely having time to build culture? Melanie Kyrklund (Specsavers) calls that situation “a form of oppression” and then shares exactly how she broke out of it. In this episode, Melanie reveals how Specsavers shifted to a Center of Excellence model and doubled experiments from ~100 to ~200...

Do you want to break out of the feature factory, ship fewer things that matter more, and finally get your product team aligned around real customer value? Then this GMS episode with Martin is your fast track: In this conversation, Senior Product Manager Martin Schröter (mobile.de) reveals the practical system he uses to: Turn chaotic stakeholder requests into a clear, user-centric vision Replace o...

What happens when one of Europe’s most seasoned UX researcher admits that his “obvious wins” sometimes flop? In this episode, Karl Gilis and André dig into the uncomfortable gap between what teams think users do and what real people actually struggle with. Karl shares surprising stories from 25+ years in the field: petrol-station websites gone wrong, A/B tests that humbled him, and insights that r...

Ryan Lucht , Senior Technical Advocate at Datadog and Marketing Lead at Eppo, widely regarded as one of the sharpest voices in modern experimentation talks about some misconceptions of experimentaiton. Ryan’s knowledge and technical depth, contrarian thinking, and cultural pragmatism has made him a leading figure in the experimentation community. Ryan shares the origin story that hooked him into A...

What happens when one of the most trusted voices in experimentation sits down for a deeply honest conversation about growth, culture, learning, and unlearning? Today, Julia and André talk with Kevin Anderson , curator of Experimental Mind , creator of Experimentation Jobs , and longtime experimentation leader at ING and Vista. This is not just a conversation about A/B tests, it’s a conversation ab...

In this episode, Julia Rumpf and André Morys sit down with Anuj Adhiya, growth leader, author of Growth Hacking for Dummies , and one of the early team members at GrowthHackers, to talk about what real growth looks like when you move beyond surface metrics. Together they explore why sustainable growth starts with customer value, not dashboards, and how companies can turn learning into their true o...

Product and Experimentation belong closer together and disciplines benefit from each other while in reality there are still many silos in peoples minds. In this episode, Stefanie Grimmling and Anastasia Shvedova explore how product teams can move from output-driven roadmaps to outcome-driven impact , and why culture beats tools when it comes to real innovation. You’ll learn: What Upsprint is and h...

How do you build a culture of experimentation in a 150-year-old company? In this episode, Marta, Digital Experimentation Lead at A1 Telekom , shares how she turned a traditional telco into a testing powerhouse driven by curiosity, courage, and customer focus. Highlights: - Why humility is the secret ingredient of experimentation (“you’re wrong all the time”) - How Marta created a safe environment...

In this episode of the GMS Podcast, Julia and André sit down with Michael Richter from Robinson Club (TUI) to unpack what truly drives impact: real user insights, disciplined experimentation, and the courage to learn out loud. What you’ll learn: How Michael went from “A/B will prove I’m brilliant” to being humbled in three weeks, then building a sustainable experimentation habit. Why data beats op...

In this episode of the GMS Podcast, Julia and André sit down with John Ekman to unpack what it really takes to build an experimentation engine that drives growth, beyond tools, tactics, and vanity metrics. Expect straight talk, hard-won lessons, and practical frameworks you can apply this week. What you’ll learn & key highlights: Why most “experimentation programs” stall and how to fix the cul...

Manuel Brückmann is the wizard behind optmzeAI and long-time tech brain of GMS. Manuel shares how AI is transforming experimentation, helping teams overcome complexity, avoid “prompting fatigue,” and scale their optimization programs with speed and precision. From rookie pitfalls to future trends like autonomous testing, simulated A/B tests, and AI-powered stakeholder management, this conversation...

In this episode of the GMS Podcast, André and Julia sit down with Melanie Müller , Senior Product Manager on the experimentation platform at Booking.com , scientist at heart, and upcoming GMS 2026 speaker . Together, they dive deep into what it takes to scale experimentation in one of the world’s largest travel platform where testing isn’t just a tactic, but part of the company’s DNA. What you’ll...

In this episode of the GMS Podcast , André and Julia sit down with Morgan Brown , growth leader, co-author of Hacking Growth , and former executive at companies like Facebook, Instagram, Shopify and Dropbox. Together, we uncover 3 key lessons for experiment-driven growth and building products that people truly value . Morgan shares why curiosity beats certainty, how to change metrics to change cul...

Are you still unsure what to make of AI? Does it feel more like a threat than a tool? You’re not alone and this episode will change the way you think about it. In this new episode of the GMS Podcast , we take you on a playful yet deeply insightful journey into the world of AI adoption. Starting from a place of fear and overwhelm, we explore how to turn AI into an advantage without losing your huma...

What does it take to build a culture where failure isn’t feared but celebrated? In this episode, we sit down with Stuart Frisby , Director of Brand & Experience Design at Deliveroo and former Head of Design at Booking.com, to explore what it really means to design for impact. From launching thousands of experiments to leading design through hypergrowth, Stuart shares hard-earned insights on ex...

In this episode of the GMS Podcast, Julia sits down with Erin Weigel, a true pioneer in the world of product design and experimentation. Erin shares her insights on making experimentation more approachable, fun, and impactful. From her legendary GMS talk to her bestselling book Design for Impact , Erin's unique approach to design and experimentation is revolutionizing how teams tackle innovati...

Is your agency ready for the future or strapped into the crash test dummy headed straight for the wall? In this explosive episode, André Morys sits down with Craig Sullivan (experimentation evangelist) and Dennis van der Heijden (CEO of Convert.com) to unpack the raw, uncomfortable truths revealed in the Agency & Vendor Experimentation Ecosystem 2025 Report . Agencies are angry. Trust is broke...

In this special episode, André and Julia take you behind the scenes of GMS 2025 (growth-minded SUPERHEROES) , just one week after the live event on June 18th, 2025 at Alte Oper Frankfurt. They reflect on the energy, the people, the ideas, and the unforgettable moments that made this year’s summit one of the most inspiring yet. From LEGO towers and live music to powerful keynotes and goosebump mome...

What does it really take to build a thriving experimentation culture - not just in one company, but across an entire industry? In this episode of the GMS Podcast, we sit down with Kelly Wortham , founder of the Test & Learn Community (TLC) , former global optimization lead at Dell, and one of the most influential voices in experimentation today. Kelly shares the story behind the birth of TLC,...

How do you move from vague, forgettable messaging to vivid copy that actually converts? In this episode, we’re joined by Amy Harrison - copywriting strategist, speaker, and founder of Write With Influence - to talk about how great copywriting intersects with experimentation, psychology, and strategy. Amy shares her most practical tips for writing copy that resonates, stands out, and gets results -...

In this powerful episode, growth strategist and author Chris Out shares why most organizations hit invisible ceilings - and how true business growth always starts with personal transformation. We dive deep into: Why every organization is a system of bottlenecks The difference between wanting growth and being ready for it How fear, ego, and self-deception silently hold you (and your business) back...

What happens when you mix a growth strategist, a juicy lemon, and the power of purposeful experimentation? In this episode of the GMS Podcast, we welcome Daphne Tideman - renowned growth advisor, former Head of Growth at Heights, and co-founder of the Women in Experimentation Community. Join us for a candid and insightful conversation on: Why growth isn’t a department - but a mindset “Squeezing th...

What if your obsession with perfect test designs and pixel-perfect CTAs is actually holding your experimentation program back? In this eye-opening episode, we talk with Christoph Rottler-Lavoie, Country Manager DACH at Kameleoon, about the invisible costs of perfectionism in A/B testing - and what truly matters when it comes to experimentation velocity, stakeholder buy-in, and sustainable growth....

What if the resistance you’re facing in your experimentation program isn’t a blocker - but your biggest opportunity? In this episode, Julia Rumpf & André Morys sit down with Ruben de Boer , a global thought leader in experimentation culture and stakeholder alignment. Together, they explore how to make experimentation stick inside real-world organizations - and how to turn resistance into radic...