Dave Mariani

Dave Mariani LinkedIn Profile

Dave is the founder of AtScale and is the Chief Technology Officer. Prior to AtScale, he was VP of Engineering at Klout & at Yahoo! where he built the world’s largest multi-dimensional cube for BI on Hadoop. Mariani is a Big Data visionary & serial entrepreneur.

April 27, 2026

3 Takeaways from Google Cloud Next 2026

Google Cloud Next 2026 wrapped up this week at Mandalay Bay, and I’ve got thoughts. Some of them are even about the announcements. But let’s start with the elephant, or rather, the 40,000 people crammed into a venue built for…

April 1, 2026

Not All Semantic Layers Are Built for AI

The semantic layer has moved from niche infrastructure to a boardroom priority. Snowflake announced one. Databricks announced one. Google repositioned Looker as one. Microsoft repositioned Power BI as one. This is genuinely good news. As ISG analyst Matt Aslett observed…

March 17, 2026

Why Moving Data for BI and AI Creates Architecture Problems

In modern data architectures, analytics tools often replicate data from the warehouse into secondary systems to improve performance. While this can speed up dashboards, it introduces new problems: duplicated datasets, inconsistent metrics, fragmented governance, and rising cloud costs. Modern analytics…

March 12, 2026

Hits and Misses from Gartner Data & Analytics Summit 2026

Gartner opened the Data & Analytics Summit 2026 with a memorable metaphor. The keynote framed the current moment as a raft ride through a roaring, treacherous river. The river represented AI. Fast-moving. Powerful. Difficult to control. The message was clear.…

February 25, 2026

Headless AI Agents Are Already Here and They’re Where the ROI Is

Most enterprise AI conversations still center on prompts, whether through chat interfaces, copilots, or question-answer workflows. But the highest-value AI agents don’t wait for someone to ask a question. They monitor signals, detect thresholds, and trigger actions. These are headless…

February 20, 2026

Why Agentic AI Fails Without a Semantic Layer

Many teams assume they’re doing agentic analytics because they support text-to-SQL or chat-based BI. And while conversational BI does change how questions are asked, it doesn’t go so far as to change how decisions are made. It’s like transitioning from…