DataTalks.Club

In this talk, Slawomir Tulski, Data Leadership Consultant and former Meta Data Engineering Manager, shares his ten-year journey through the evolution of data systems—from researching glaciers in Poland to scaling the ads ranking infrastructure at one of the world's largest tech giants. We explore the shifting definition of the Data Engineer, the "Actionable Data" philosophy, and how to navigate the 2026 hiring market amidst the rise of AI.You’ll learn about:- How to distinguish between Platform DE, Product DE, and Analytics Engineering.- Why most teams over-engineer their stacks and how to build "Value-First" instead of "Tool-First."- Why being "cloud-cost-conscious" is the most underrated competitive advantage in modern data teams.- How to identify "Legacy Traps" and choose a company culture that fosters growth.- Why strategic builders will thrive while "DBT Monkeys" and manual triaging roles are at risk of automation.- How to frame side projects and end-to-end "Toy Platforms" to stand out to recruiters without a Big Tech pedigree.TIMECODES:00:00 From Measuring Glaciers to London’s Tech Scene06:47 Hadoop vs. AI: Lessons from the Original Big Data Hype11:54 The Data Identity Crisis: Platform vs. Product Engineering17:29 Tech-Native vs. Tech-by-Necessity Company Cultures25:33 The Competitive Advantage of Cost-Aware Engineering30:56 Avoiding Over-Engineered Platforms and Modern Data Stacks38:01 The Real-Time Myth: When to Use Kafka and Spark42:08 Breaking into Data Engineering: 2026 Market Reality51:04 AI Automation: Why Strategic Builders Outlast "DBT Monkeys"57:35 Portfolio Strategy: Framing Side Projects for Maximum Impact1:04:42 The Ultimate Portfolio Project: Building End-to-End Platforms1:07:49 Networking Advice and Local Gdansk CultureThis talk is designed for ambitious data professionals including engineers, analysts, and career-switchers who want a pragmatic, "fluff-free" roadmap for surviving and thriving in the 2026 data landscape. It is particularly valuable for hiring managers and senior leaders looking to audit their recruitment processes, as well as those in traditional corporate environments seeking to implement the agile, high-impact engineering cultures found in Big Tech giants like Meta.Connect with Slawomir:- Linkedin - https://www.linkedin.com/in/slawomir-tulski-091611116/- Form for DE role Ebook - https://docs.google.com/forms/d/e/1FAIpQLSdSCLaBdTtuRlgV_nukKckumR60VOovECtlRIRI5DMUIk36EQ/viewform?usp=dialogConnect with DataTalks.Club:- Join the community - https://datatalks.club/slack.html- Subscribe to our Google calendar to have all our events in your calendar - https://calendar.google.com/calendar/r?cid=ZjhxaWRqbnEwamhzY3A4ODA5azFlZ2hzNjBAZ3JvdXAuY2FsZW5kYXIuZ29vZ2xlLmNvbQ- Check other upcoming events - https://lu.ma/dtc-events- GitHub: https://github.com/DataTalksClub- LinkedIn - https://www.linkedin.com/company/datatalks-club/ - Twitter - https://twitter.com/DataTalksClub - Website - https://datatalks.club/

In this talk, Ruslan Shchuchkin, GenAI Engineer at Finance Guru, shares his unique career evolution from business administration and account management to building production-grade generative AI systems. We explore the transition from traditional Data Science to the modern AI Engineer role, defined by the "universal soldier" mindset and the ability to ship end-to-end products.You’ll learn about:- Why modern AI engineers must bridge the gap between frontend, backend, and LLM logic.- How building in public and creating personal projects like Branch GPT can fast-track your hiring process.- Why understanding human behavior and user needs is the ultimate safeguard against AI replacement.- How to use tools like Cursor and Claude to accelerate development without losing your technical edge.- How traditional roles are evolving and why evaluation is the new superpower for data professionals.- Practical tips for starting local AI meetups and side hustles (like the Catch a Flat extension) without perfectionism.- Why the industry is shifting toward specific project track records and energy over formal degrees.Links: - https://www.swyx.io/create-luckTIMECODES:00:00 From Account Management to Data Science07:51 Building Branch GPT and Side Project Philosophy10:41 Transitioning to AI Engineering Full-Time15:26 Maximizing Your "Luck Surface Area"19:48 The AI Engineer as a Universal Soldier23:19 Humans vs. AI in Product Discovery28:31 Staying Sharp with X, Grok, and Meetups33:21 How to Launch a Lean Local AI Community38:49 Catch a Flat: Vibe Coding and Side Hustles43:04 Learning the Business Side through Small Projects48:48 Sourcing Project Inspiration from Daily Life52:28 The Future and Longevity of Data Science57:39 Skills over Degrees: The Realities of Hiring01:03:12 Using AI to Learn Instead of Just CodingThis talk is for Data Scientists and Software Engineers looking to transition into AI Engineering or GenAI roles. It is equally valuable for developers interested in building side projects, maximizing their career visibility, and staying updated in a rapidly shifting tech landscape.Connect with Ruslan- Linkedin - https://www.linkedin.com/in/ruslanshchuchkin/Connect with DataTalks.Club:- Join the community - https://datatalks.club/slack.html- Subscribe to our Google calendar to have all our events in your calendar - https://calendar.google.com/calendar/r?cid=ZjhxaWRqbnEwamhzY3A4ODA5azFlZ2hzNjBAZ3JvdXAuY2FsZW5kYXIuZ29vZ2xlLmNvbQ- Check other upcoming events - https://lu.ma/dtc-events- GitHub: https://github.com/DataTalksClub- LinkedIn - https://www.linkedin.com/company/datatalks-club/ - Twitter - https://twitter.com/DataTalksClub - Website - https://datatalks.club/

In this episode Revathy Ramalingam, Senior Software Engineer and AI Engineer at a healthcare startup, shares her inspiring personal journey from over nine years in telecom software architecture to successfully transitioning back into the industry after a seven-year career break. We explore the evolution of the AI engineer role, the practical application of RAG pipelines, and the strategic use of AI tools to rebuild a technical career.

You'll learn about:
- AI Career Mapping: Using LLMs to design an upskilling roadmap.
- Vibe Coding: Leveraging AI tools for rapid prototyping.
- RAG Implementation: Building retrieval systems with LangChain.
- Interview Strategy: Proving technical skills after a career gap.
- Learning in Public: Building a network through community projects.

TIMECODES:
00:00 Why Move to AI? Using ChatGPT to Plan a Career Pivot
11:00 Learning in Public: The Power of Community Support
15:35 Telecom Capstone: Predicting Network Slices with ML
22:15 "Vibe Coding" & Building Prototypes with AI Dev Tools
28:00 The Interview Process: Navigating a 7-Year Career Break
33:45 Practical Interview Tasks: Building a PDF Q&A Assistant
39:40 Career Advice: Clear Plans, AI Mentors, and Hard Work
44:30 Closing Thoughts: Scaling the Learning Ladder

This talk is for developers and career-changers looking for a blueprint to enter the AI engineering space. It is ideal for those interested in RAG, healthcare tech, and practical career resets.

Connect with Revathy
- Github - https://github.com/RevathyRamalingam
- Linkedin - https://www.linkedin.com/in/revathy-ramalingam/

Connect with DataTalks.Club:
- Join the community - https://datatalks.club/slack.html
- Subscribe to our Google calendar to have all our events in your calendar - https://calendar.google.com/calendar/r?cid=ZjhxaWRqbnEwamhzY3A4ODA5azFlZ2hzNjBAZ3JvdXAuY2FsZW5kYXIuZ29vZ2xlLmNvbQ
- Check other upcoming events - https://lu.ma/dtc-events
- GitHub: https://github.com/DataTalksClub
- LinkedIn - https://www.linkedin.com/company/datatalks-club/
- Twitter - https://twitter.com/DataTalksClub
- Website - https://datatalks.club/

In this talk, Aditya, an experienced AI Researcher and Engineer, shares his technical evolution—from his roots in embedded systems to building complex, large-scale AI agent architectures. We explore the practical challenges of enterprise AI adoption, the shifting economics of LLMs, and the infrastructure required to deploy reliable multi-agent systems.You’ll learn about:- The ROI of Fine-Tuning: How to decide between specialized small models and general-purpose APIs based on cost and latency.- Agent MLOps Stack: The essential roles of guardrails, data lineage, and auditability in AI workflows.- Reliability in High-Stakes Verticals: Navigating the unique AI deployment challenges in the legal and healthcare sectors.- Evaluation Frameworks: How to design robust evals for multi-tenancy systems at scale.- Human-in-the-Loop: Strategies for aligning "LLM as a judge" with human-labeled ground truth to eliminate bias.- The Future of AGI: What to expect from the next wave of multimodal agents and autonomous systems.TIMECODES: 00:00 Aditya’s from embedded systems to AI08:52 Enterprise AI research and adoption gaps 13:13 AI reliability in legal and healthcare 19:16 Specialized models and agent governance 24:58 LLM economics: Fine-tuning vs. API ROI 30:26 Agent MLOps: Guardrails and data lineage 36:55 Iterating on agents with user feedback 43:30 AI evals for multi-tenancy and scale 50:18 Aligning LLM judges with human labels 56:40 Agent infrastructure and deployment risks 1:02:35 Future of AGI and multimodal agentsThis talk is designed for Machine Learning Engineers, Data Scientists, and Technical Product Managers who are moving beyond AI prototypes and into production-grade agentic workflows. It is especially relevant for those working in regulated industries or managing high-volume API budgets.Connect with Aditya:- Linkedin - https://www.linkedin.com/in/aditya-gautam-68233a30/Connect with DataTalks.Club:- Join the community - https://datatalks.club/slack.html- Subscribe to our Google calendar to have all our events in your calendar - https://calendar.google.com/calendar/r?cid=ZjhxaWRqbnEwamhzY3A4ODA5azFlZ2hzNjBAZ3JvdXAuY2FsZW5kYXIuZ29vZ2xlLmNvbQ- Check other upcoming events - https://lu.ma/dtc-events- GitHub: https://github.com/DataTalksClub- LinkedIn - https://www.linkedin.com/company/datatalks-club/ - Twitter - https://twitter.com/DataTalksClub - Website - https://datatalks.club/

In this talk, Juan, Analytics Engineer and author of Fundamentals of Analytics Engineering share his professional journey from studying psychological research in Colombia to becoming one of the first analytics engineers in the Netherlands. We explore the evolution of the role, the shift toward engineering rigor in data modeling, and how the landscape of tools like dbt and Databricks is changing the way teams work.

You’ll learn about:
The fundamental differences between traditional BI engineering and modern analytics engineering.
How to bridge the gap between business stakeholders and technical data infrastructure.
The technical "glue" that connects Python and SQL for robust data pipelines.
The importance of automated testing (generic vs. singular tests) to prevent "silent" data failures.
Strategies for modeling messy, fragmented source data into a unified "business reality."
The current state of the "Lakehouse" paradigm and how it impacts storage and compute costs.
Expert advice on navigating the dbt ecosystem and its emerging competitors.

Links:
DE Course: https://github.com/DataTalksClub/data-engineering-zoomcamp
Luma: https://luma.com/0uf7mmup

TIMECODES:
0:00 Juan’s psychological research and transition to data
4:36 Riding the wave: The early days of analytics engineering
7:56 Breaking down the gap between analysts and engineers
11:03 The art of turning business reality into clean data
16:25 Why data engineering is about safety, not just speed
20:53 Reimagining data modeling in the modern era
26:53 To split or not to split: Finding the right team roles
30:35 Python, SQL, and the technical toolkit for success
38:41 How to stop manually testing your data dashboards
46:34 Bringing software engineering rigor to data workflows
49:50 Must-read books and resources for mastering the craft
55:42 The future of dbt and the shifting tool landscape
1:00:29 Deciphering the lakehouse: Warehousing in the cloud
1:11:16 Pro-tips for starting your data engineering journey
1:14:40 The big debate: Databricks vs. Snowflake
1:18:28 Why every data professional needs a local community

This talk is designed for data analysts looking to level up their engineering skills, data engineers interested in the business-logic layer, and data leaders trying to structure their teams more effectively. It is particularly valuable for those preparing for the Data Engineering Zoomcamp or anyone looking to transition into an Analytics Engineering role.

Connect with Juan
Linkedin - https://www.linkedin.com/in/jmperafan/
Website - https://juanalytics.com/

Connect with DataTalks.Club:
Join the community - https://datatalks.club/slack.html
Subscribe to our Google calendar to have all our events in your calendar
https://calendar.google.com/calendar/r?cid=ZjhxaWRqbnEwamhzY3A4ODA5azFlZ2hzNjBAZ3JvdXAuY2FsZW5kYXIuZ29vZ2xlLmNvbQ- Check other upcoming events
https://lu.ma/dtc-events- GitHub: https://github.com/DataTalksClub
LinkedIn - https://www.linkedin.com/company/datatalks-club/
Twitter - https://twitter.com/DataTalksClub
Website - https://datatalks.club/