Data & AI Engineer

Currently building Kivi

Sagar Das

Explore the work Camera roll

01 / Tools I’m building

Selected work.

01 / Local-first workbench

Kivi

Review a proposed change, then check what actually ran.

02 / macOS desktop companion

Buntini

The same care, on a smaller scale: reminders and Mail drafts you can review.

Atrium

Enterprise search with citations and access controls

Relay

Shared context for teams building with AI

02 / From my engineering roles

Measured impact.

Data onboarding

4 days to hours

Metadata-driven pipelines

Other outcomes

Live learning-platform events streamed into BigQuery: 20M+/day
Improvement in email-data freshness: 65%
Governance guardrails for sensitive email records: 43

I built a retrieval prototype to find themes and quotes in 100K+ survey responses.

Credentials

03 / Notes from building

Writing.

The next AI interface is a work contract

Multi-agent systems need one execution model

Personal assistants need deterministic edges

04 / Away from the screen

Camera roll.

Olympus E-M10.
A few reasons to stop walking.

05 / Contact

Say hello.