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ETL & ELT pipelines

ETL and ELT pipelines built for data that will not sit still.

We build the pipelines that move your data from wherever it lives into a warehouse where it can be trusted: incremental, orchestrated, tested, and re-runnable without a person babysitting them.

  • Incremental loads
  • Airflow orchestration
  • dbt transforms

What you get

Pipelines that run without a babysitter.

Incremental, not full reloads

Sized to your data volume, so runs stay fast as history grows.

Retries that can't corrupt

Idempotent, atomic writes. Partial loads never reach reporting.

History that stays correct

Trailing restatement windows re-pulled on every run.

Backfills your team can run

Runbooks and backfill commands at handover.

The problem

The pipeline that works until it matters.

Most reporting breaks in the same three places. A full-table reload that took four minutes in year one now takes six hours. A job fails at 2am, retries into a half-written table, and nobody notices until a client asks why revenue dropped. And history quietly changes underneath you, because ad platforms and marketplaces restate conversions for days after the fact. A pipeline that assumes yesterday is final will be wrong every single day.

What we build

What's included.

  • Incremental extract and load pipelines sized to your data volume, not full reloads
  • ELT patterns that land raw data first and transform inside the warehouse, so a bad transform never costs you the source
  • Restatement windows that re-pull the trailing period ad platforms are still changing
  • Orchestration in Airflow or Dagster with dependencies, retries and idempotent tasks
  • dbt transformation layers with tests, so a null or a duplicate fails the run instead of reaching a dashboard
  • Backfill tooling your team can run themselves when history needs to be rebuilt

How we work

How we run it.

  1. Step 1

    Trace the current flow source by source and find where numbers actually diverge

  2. Step 2

    Land raw ingestion first, so nothing depends on a transform being right on day one

  3. Step 3

    Model and test the reporting layer in dbt, then cut dashboards over channel by channel

  4. Step 4

    Add alerting and hand over runbooks and backfill commands

What we use

Tools, platforms and methods.

  • Airflow
  • Dagster
  • dbt
  • Snowflake
  • BigQuery
  • Databricks
  • Python

FAQ

Common questions.

What is the difference between ETL and ELT, and which do you use?

ETL transforms data before it lands; ELT lands it raw and transforms inside the warehouse. We default to ELT because warehouse compute is cheap, raw history means you can rebuild any model without re-pulling APIs, and transformation logic in dbt is testable and reviewable. We use ETL where compliance requires filtering or masking before the data ever lands.

How real-time can a marketing pipeline realistically be?

Bounded by the source, not by us. Most ad platform reporting APIs update hourly at best and restate for days, so hourly ingestion is genuinely current. Event streams like server-side conversions can run in near real time. We are direct about which of your sources can support a live number and which cannot.

How do you stop a failed job from corrupting the warehouse?

Every task is idempotent and writes atomically: loads go to a staging location and swap in only on success, so a retry produces the same result as a clean first run. Partial writes never become visible to reporting.

Can our analysts change the pipeline after handover?

That is the goal. Transformations live in dbt as version-controlled SQL, which most analysts can already read and extend. We hand over the repo, the tests, the runbooks and a working local setup.

Talk to an engineer.

Tell us where your data lives and where the numbers diverge. We'll tell you what we'd rebuild first.

Talk to an engineer