Halladin Labs

I build analytics teams — and the AI agents the whole company actually uses.

Director of analytics at consumer product companies. Experimentation is where my rigor comes from; lately I build agentic systems that run in production and get used daily.

#analytics-agent
pm-sarah

What's D7 retention for users who saw the new onboarding flow?

analytics-agent

querying Snowflake · checking 2 tables

analytics-agent

New-onboarding cohort: 34.2% D7 retention vs. 31.8% control (n=18,412).

Source: retention_by_cohort · Snowflake

Illustrative example — not live data

How I work

How I think about analytics

I build and scale data analytics teams — heavy focus on product analytics and experimentation, and more recently on agentic tools that automate the repetitive parts of the job. I've built an analytics organization from scratch, led company-wide AI adoption, and shipped agentic systems that are now used in production every day.

An analytics team's success should be measured by how many decisions it actually changed — not dashboards shipped, not queries run. If a report isn't moving a decision, automate it, and put the team back on work that does.

Below: a live simulation of a two-arm A/B test — not real data, just the kind of read I'd bring to a real one.

Fig. 1  /  Two-arm test, 95% CI Collecting
0.300.380.45 0.530.60 OUTCOME RATE Astatus quo Bhalladin labs
Samples0
Lift
p-value
Power0.80

Fig. 1 — A tongue-in-cheek A/B test: the effect of adding one experimentation-minded analyst (me) to a team that was already confident in its gut calls. Simulated, not real data — but the instinct behind it is real. Pre-registered. Not peer reviewed. Results may vary by org.

Toolkit

What I reach for

Building with AI

Shipping agents to production, not evaluating tools.

  • Claude
  • Claude Code
  • MCP
  • Cursor

Data stack

Built the modern stack from scratch, twice.

  • Snowflake
  • dbt
  • Segment
  • Amplitude
  • Airflow
  • Looker

Analysis & experimentation

Where the rigor lives, underneath the agents.

  • SQL
  • Python
  • Sequential testing & confidence sequences
  • Causal inference
  • Incrementality & geo testing

Contact

Let's talk

Hiring, or want to debate a methodology? Email is the fastest way to reach me.