9: From Actuary to Analytics Engr Mgr @ Hubspot. Kasey Mazza
Release Date: 05/09/2025
25: From COBOL Developer to Insurance Data Engineer: Brad Cronkrite
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Description: In this conversation, Brad Cronkrite shares his journey from a developer to a lead data analytics engineer at Mercury Insurance. He discusses the critical role of data in the insurance industry, the challenges and opportunities presented by AI, and the importance of mentorship and self-awareness in career growth. Brad also emphasizes the significance of maintaining a work-life balance and understanding the dynamics of introversion in the workplace. He shares insights on empowering analytics teams through dbt mesh and reflects on past data disasters that shaped his approach to data...
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23: From Nonprofit & Education, to Senior BI Analyst @ JustWorks: Millie Symns
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In this episode of Data Career Transformations, Bolaji interviews Millie Symns, a senior Business Intelligence analyst at JustWorks. Millie shares her journey into the data field, emphasizing the importance of mission-driven work and the intersection of data and education. She discusses her current role, the challenges of communicating data insights to non-technical stakeholders, and the significance of mentorship in the data community. Millie's insights on data literacy, measuring business impact, and the value of collaboration highlight the evolving landscape of data careers. Chapters: ...
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22: From Semi-Pro Baseball to Dir of Engineering @ BetterHelp, w Johnathan Brooks
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Description: In this conversation, Bolaji and Johnathan "JB" Brooks discuss JB's journey from semi-pro baseball player to a data engineering leader at BetterHelp. They explore the balance between mental health and high-pressure environments, the importance of dbt and Kimball modeling in data engineering, and the evolving landscape of AI and machine learning. JB shares insights on communication skills, measuring the value of data work, and the significance of understanding stakeholders. The discussion emphasizes the need for empathy and personal connection in professional success, along with...
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21: From Optimizing Physical Warehouses, to Optimizing FinOps Data Warehouses: Eddy Zulkifly
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Description: In this episode of Data Career Transformations, Bolaji interviews Eddy Zulkifly, a senior staff data engineer at Kanaxis. They discuss Eddy's journey from chemical engineering to data engineering, his passion for soccer coaching, and the importance of community and mentorship in professional growth. Eddy shares insights on the role of Excel in business, the challenges of FinOps, and the significance of a growth mindset in both sports and data careers. He emphasizes the value of learning in public and encourages data professionals to share their experiences and learn from one...
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20: From Data Science & Engineering, to AI & ML Solutions Architect: Louis Guitton
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Description: In this episode, Bolaji interviews Louis Guitton, an engineering leader with extensive experience in data engineering and analytics. They discuss Louis's journey from sports to data, his experiences at One Football Labs, and the challenges of communicating technical concepts to non-technical stakeholders. Louis shares insights on handling stress and burnout, measuring the impact of data projects, and the importance of sustainable personal growth in a rapidly evolving field. He emphasizes the need for data professionals to understand the business context and offers valuable advice...
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24: From Ballet Mech Engineer, to HR Tech Data Engineer: Larissa Mendes
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In this episode, Bolaji Oyejide interviews Larissa Mendes, a Level 3 Data Engineer at Gupy, who shares her unique journey from mechanical engineering to data engineering. Larissa discusses her experiences with data quality challenges, the importance of community support, and her current tech stack at Gupy. She also provides valuable insights on overcoming interview challenges and the significance of effective communication with stakeholders. Larissa emphasizes the need for continuous learning and the power of networking in advancing one's career in data. Takeaways: Larissa transitioned...
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19: From Quantum Physicist to Roche Head of Engineering? Yannick Misteli
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In this episode, Bolaji interviews Yannick Misteli, head of engineering at Roche, who shares his unique journey from a PhD in quantum physics to a leadership role in data science. Yannick discusses his early experiences in finance, the importance of building a solid data organization, and the balance between people, process, and technology. He emphasizes the significance of trust in data relationships and offers insights into managing stress and communicating business value. The conversation also touches on his passion for dance and how it has shaped his personal and professional life. ...
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18: From CFO to Data Engineer? Philip Boontje
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In this episode of Data Career Transformations, Bolaji interviews Philip Boontje, a finance executive and data architect. Philip shares his unique journey from chemical engineering to finance and ultimately to data engineering. He discusses the challenges and successes he has faced in his career, including the transition from spreadsheets to data engineering, the discovery of dbt, and the importance of building a strong data architecture. The conversation also touches on the future of data with semantic layers and AI, as well as the importance of mental health and work-life balance in the...
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17: From Psychology to Analytics Engineering: Juan Manuel Perafan
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In this episode, Bolaji interviews Juan Manuel Perafan, a psychology major turned analytics engineer, who shares his journey from Colombia to the Netherlands and his transition into the data field. They discuss the importance of networking, the challenges of imposter syndrome, and the evolving role of analytics engineering. Juan emphasizes the value of being replaceable in a job and offers advice for aspiring data professionals, highlighting the significance of foundational skills and the need to stay adaptable in a rapidly changing industry. Subscribe on: | | | Takeaways: ...
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16: From Yale Rugby & Jazz, to Data FinTech & AdTech? Sr Dir of Analytics, Bryan Herbert
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In this episode of Data Career Transformations, Bolaji interviews Bryan Herbert, Senior Director of Analytics at Kargo. They discuss Bryan's unique career path from electrical engineering to fintech and ad tech, exploring how he applies his diverse experiences to build effective data teams. Bryan shares insights on the importance of team dynamics, the data maturity curve, and the future of business intelligence, emphasizing the need for low ego and high empathy in data professionals. He also provides valuable advice for aspiring data analysts and engineers, highlighting the significance of...
info_outlineIn this episode of Data Career Transformations, Bolaji interviews Kasey Mazza, an analytics engineering manager at HubSpot.
Kasey shares her journey from actuarial science to analytics engineering, emphasizing the importance of merging technical skills with emotional intelligence. She discusses her approach to career growth modeled after the software development life cycle, her day-to-day responsibilities, and the significance of building teams like a community. Kasey also highlights the challenges of data management, the importance of fostering a learning culture, and how to measure the impact of data roles.
Throughout the conversation, she offers valuable insights and advice for aspiring data professionals.
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Speakers:
- Guest: Kasey Mazza is the Director of Analytics Engineering at Hubspot
- Host: Bolaji Oyejide is the community manager at dbt Labs, and host of Data Career Transformations.
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About the dbt Community:
Building in Public: The Best Way to Learn Data.
We’ve always believed the best way to get better at data is by sharing what you’re learning. That’s why we built the dbt Community—a place where data pros at every level can ask questions, debate ideas, and push each other forward. It’s not just about solving today’s problems—it’s about building what’s next, together.
- Crowdsource solutions—70,000+ people who’ve been there, done that.
- Find your crew—meet others who use the same tools you do.
- Stay at the cutting edge—discussions, meetups, and game shows keep things fresh.
👉 Jump in and say hi—Join the dbt Community now.
Takeaways:
- Kasey transitioned from actuarial science to analytics engineering.
- She emphasizes the importance of emotional intelligence in data roles.
- Career growth can be modeled after the software development life cycle.
- Building teams like a community fosters collaboration and innovation.
- Kasey advocates for a learning culture within data teams.
- Measuring impact in data roles can be challenging but is essential.
- Cross-functional collaboration is key to successful projects.
- Kasey encourages following curiosity and passion in career paths.
- She believes in collecting skills rather than just chasing titles.
- Kasey reads extensively, averaging 110 books a year.
Chapters:
- 00:00: Introduction to Kasey Mazza and Her Journey
- 02:54: Kasey's Data Origin Story
- 06:25: Applying the Software Development Life Cycle to Career Growth
- 09:41: The Role of an Analytics Engineering Manager
- 10:54: Building Data Teams Like a Community
- 12:36: Team Structure and Roles
- 14:59: Tech Stack and Tools Used
- 16:16: Data Challenges and Communication Gaps
- 19:29: Shaping Team Culture and Shared Language
- 20:19: Cultivating a Learning Culture
- 21:19: Investing in Personal Development
- 23:27: Beyond Titles: Collecting Skills
- 24:43: The Power of Reading
- 26:47: Building a Customer Score
- 29:43: Measuring Impact in Data
- 32:51: Defining Professional Success
- 34:08: The Influence of Mentorship
- 35:26: Looking Ahead: Future Aspirations
- 38:22: Advice for Aspiring Data Professionals