

Stacked Data Podcast
Cognify
It has become evident to me that many data teams are grappling with similar challenges. Learning from the experiences of others can be incredibly valuable, which is why I am thrilled to announce the launch of The Stacked Podcast. This podcast is dedicated to sharing stories, pain points, challenges, and solutions within the data industry.I will be conducting interviews with industry leaders, delving into their cutting-edge projects, exploring the hurdles they faced, and how they triumphed over them. My ultimate goal is to provide you with insights and advice that will empower your team and propel your career forward.www.cognifysearch.com
Episodes
Mentioned books

Nov 12, 2025 โข 41min
038 - How Flo run 1500+ experiments a year to drive product development
Dmitry Zolotukhin, VP of Analytics at Flo, leads a 30-person analytics team, driving a data-centric culture in product development. He shares insights on running over 1,500 experiments a year without sacrificing quality. Dmitry discusses how Flo transitioned from small tests to a robust experimentation framework. He emphasizes the importance of team education, process standardization, and balancing speed with trusted results. Dmitry also touches on future innovations like AI-driven decisions and meta-analysis to further enhance experimentation.

Oct 29, 2025 โข 37min
037 - Build vs Buy in the Modern Data Stack: Stories, Frameworks & Pitfalls
On this episode of the Stacked Data Podcast, Harry Gollop sits down with Hugo Lu, co-founder of Orchestra, to tackle one of the most common debates in modern data teams: should you build your own tools or buy off-the-shelf solutions? Hugo shares his experiences on both sides of the decision, practical frameworks for evaluating cost, opportunity, and long-term value, and real-world examples of when building or buying was the right call. Whether youโre a Head of Data, an engineer, or just curious about tooling strategy, this episode provides actionable insights to help your team make smarter, strategic decisions.

Oct 15, 2025 โข 47min
036 - From Meta to Statsig: Driving Business Impact Through Experimentation
This week, Iโm joined by Timothy Chan, Head of Data at Statsig.Tim has a fascinating background โ he started his career as a scientist developing life-saving drugs before pivoting into data. He went on to become a Staff Data Scientist at Meta and now leads the data function at Statsig, one of the worldโs leading experimentation platforms, recently acquired by OpenAI.In this episode, we dive into the power of experimentation and how Meta embedded it into every aspect of product development.We unpack:โ๏ธ What great experimentation really looks like๐๏ธ How to build a world-class experimentation function๐ฌ How data teams can use experimentation to influence business decisionsโ๏ธ The balance between speed, rigour, and impact๐ฅ Why stakeholder collaboration is the true differentiator of high-performing data teamsTim shares brilliant insights from his time at both Meta and Statsig โ including how to think about experimentation as a cultural capability, not just a technical one.If you care about driving real business impact with data, this is a must-listen.

Jun 18, 2025 โข 41min
035 - How to Be a Strategic Driver of the Business - Senior Director of Wise
In this conversation, Adam Cassar, Director of Analytics at Wise, shares his expertise on transforming analytics teams into strategic partners rather than just service providers. He discusses common barriers teams face and offers practical strategies to overcome them. Adam emphasizes the importance of proactive influence in decision-making and building strong relationships with stakeholders. His real-life examples highlight how analytics can enhance operational efficiency and foster a data-driven culture, making this a must-listen for anyone in data roles.

May 28, 2025 โข 48min
034 - Beyond the pipeline - Tracking the true impact of Analytics Engineering
๐๐๐ฒ๐จ๐ง๐ ๐ญ๐ก๐ ๐๐ข๐ฉ๐๐ฅ๐ข๐ง๐ โ ๐๐ซ๐๐๐ค๐ข๐ง๐ ๐ญ๐ก๐ ๐๐ซ๐ฎ๐ ๐๐ฆ๐ฉ๐๐๐ญ ๐จ๐ ๐๐ง๐๐ฅ๐ฒ๐ญ๐ข๐๐ฌ ๐๐ง๐ ๐ข๐ง๐๐๐ซ๐ข๐ง๐ Analytics Engineering has become one of the most in-demand roles for modern data teams in recent years. The role goes far beyond just building clean data pipelines and data models, but how do we actually measure that impact?In todayโs episode of the Stacked Data Podcast, we're joined by Ross Helenius, Director of Analytics Engineering & AI Transformation Engineering at Mimecast, to unpack one of the most important (and overlooked) questions in data:๐ What does success look like for Analytics Engineering: beyond the technical?๐ฬฒ๐ฬฒโฬฒ๐ฬฒ๐กฬฒ๐ฬฒ๐ฬฒ๐ฬฒ๐ฬฒ๐ฬฒ:ฬฒโ
The true role of Analytics Engineering in modern data teamsโ
Why measuring ROI is so hard and how you can do thisโ
How to define and track impact beyond pipelines, models, and dashboardsโ
Practical KPIs and strategies to showcase business valueโ
Pitfalls to avoid when proving the value of your data functionRoss brings deep experience from the intersection of data, engineering, and AI, and offers actionable insights for data leaders and practitioners alike.Whether you're leading a data team, building one, or looking to become a better AE this episode is packed with value.

7 snips
May 14, 2025 โข 36min
033 - Digestible, Defendable, Actionable โ How to drive impact with Data
Digestible. Defensible. Actionable.What does it really take to drive impact with data?Too often, analysts are left wondering:โWhy didnโt anyone do anything with that insight?โThis week on the Stacked Data Podcast, Iโm joined by Sam Marks, Director of Analytics & Business Strategy at the Boston Bruins, to explore the gap between finding insights and driving action โ and how to close it.Sam shares the Digestible, Defensible, Actionable framework he uses to turn analysis into outcomes, covering:โ
What makes an insight digestible (and where analysts go wrong)โ
How to make your work defensible and credibleโ
What separates an interesting insight from an actionable oneโ
How to overcome inaction from stakeholdersโ
Real-world examples of the framework in actionThis oneโs packed with tactical advice for any data professional tired of their work getting stuck in slide decks.

Apr 30, 2025 โข 34min
032 - The key principles behind high-value data teams
Building High-Value Data Teams and the Future of BI with Oliver Hughes, CEO of CountIn this episode of the Stacked Data Podcast, we're joined by Oliver Hughes, CEO of Count โ a business intelligence platform reinventing how teams collaborate through a flexible, canvas-style interface.Together, we explore: The key principles that make data teams truly impactful Why operational clarity, effective problem-solving, and reducing time to value are so critical How Count's unique approach is transforming data collaboration beyond traditional dashboards The future of BI and how data teams can stay ahead in a fast-evolving landscapeWhether you're leading a data team, building one, or looking for smarter ways to drive insights, this episode is packed with valuable lessons.Tune in and discover a smarter, more collaborative future for data!

Apr 15, 2025 โข 37min
031 - Building a Modern Data Platform
In this episode of the Stacked Data Podcast, we're joined by Zach from Advancing Analytics to dive deep into the world of modern data platforms.Zach walks us through his career in data and his current role at one of the UK's leading data consultancies. We explore what a modern data platform really is, why companies are investing in them, and what it takes to build one thatโs scalable, reliable, and genuinely useful to the business.From core stages and common pitfalls to ensuring business alignment and future-proofing, Zach shares the lessons he's learned delivering platforms for a wide range of clients. We also zoom out to talk about what itโs like working in data consultingโwhat skills matter, what a typical day looks like, and what makes someone successful at Advancing Analytics.If you're interested in data architecture, consulting, or just want to understand what "modern" really means when it comes to data platformsโthis oneโs for you.

Mar 26, 2025 โข 36min
030 - Challenges of leading a small data team
In this episode of Stacked Data Podcast, Iโm joined by Manou, Head of Data & X at Medik8, to dive into the unique challenges of leading a small data teamโand more importantly, how to overcome them.โ
How do you prioritize when resources are tight?โ
How can small data teams drive real business impact?โ
What strategies help in building a strong team culture?Manou shares practical strategies on ensuring data teams stay focused on high-value projects, align with business goals, and maximize their potentialโeven with limited resources.If youโre leading (or part of) a small data team, this oneโs for you.

Mar 12, 2025 โข 42min
029 - Why the Semantic Layer is the Missing Piece in Data & AI
๐ ๐๐ก๐ฒ ๐ญ๐ก๐ ๐๐๐ฆ๐๐ง๐ญ๐ข๐ ๐๐๐ฒ๐๐ซ ๐ข๐ฌ ๐ญ๐ก๐ ๐๐ข๐ฌ๐ฌ๐ข๐ง๐ ๐๐ข๐๐๐ ๐ข๐ง ๐๐๐ญ๐ & ๐๐ ๐๏ธ Data teams are investing more than ever in AI and analytics, yet many still struggle to make their data truly accessible, consistent, and reliable. One major reason? The semantic layer. Without a curated Semantic Layer, self-serve AI is a pipedream! In the latest episode of the Stacked Data Podcast, I sit down with Sarah Levy, CEO of Euno, to unpack why the semantic layer is often overlookedโand why itโs so crucial for businesses looking to scale AI and analytics effectively. ๐๐ ๐๐๐ง๐ ๐๐๐ฅ๐ : ๐นWhy so many companies struggle with data consistency and accessibility ๐นWhat a semantic layer actually is and why itโs a game-changer ๐นHow it bridges the gap between raw data and real business impact ๐นThe challenges of adoption & why many data teams still donโt have one ๐นHow Euno is tackling this problem head-on If youโre working in data and your organisation is pushing for AI, this is a must-listen.


