Custom Development

Custom Development

Applications, pipelines and integrations built for the team that inherits them.

Anyone can build it once. The question is whether anyone can safely change it afterward.

Most custom builds become somebody else’s problem

The pattern is familiar. A consultancy delivers something that works, hands over a folder of scripts, and leaves. Two years later nobody knows which version is running, what changed last March, or whether it is safe to touch.

We build the way a product team builds, because the handover is the point:

  • Every database object under version control — one file per object, in a repository, with real history
  • Generated deploy scripts rather than hand-maintained ones, so what ships is what was reviewed
  • Automated drift detection that compares what is actually running against what is supposed to be

When your auditor — or your next engineer — asks what changed and when, the system answers. Nobody has to remember.

What we do

Custom applications

Bespoke tools for the problems your off-the-shelf stack will not solve, built only when buying genuinely will not do.

Data pipelines and integration

Micro-batch pipelines that process only what changed rather than reprocessing history. On our most recent build, commit-to-queryable measured 2 to 4 minutes under controlled load and 2 to 8 minutes in production.

API integration

Connecting systems that were never designed to talk, without creating a new thing that only one person understands.

Data architecture optimization

Reworking what exists so it carries the load you are about to put on it.

Test tooling

On a recent engagement we built a reversible load generator that pushed five to ten times peak production traffic through a general ledger and reverted every change afterward — the environment finished byte-for-byte identical to how it started. Yes, you can load-test a general ledger safely.

How we work

Our Strategize · Energize · Datagize method, applied to development:

  • Strategize — Alignment on what the thing is actually for, and whether it should be built at all.
  • Energize — Requirements analysis, system and data architecture, and a prototype.
  • Datagize — Development, deployment and ongoing support, delivered through whatever change process governs your organization.

Built for change control

If you work somewhere with a change-advisory board, you already know that delivery speed is governed by the approval process rather than by typing speed. Our changes ship with generated implementation plans and test-evidence workbooks — the approval gates are part of the pipeline, not friction applied to it afterward.

The stack

  • Snowflake — procedures, tasks, streams and a layered schema
  • Azure SQL source systems, replicated by enterprise change-data-capture tooling
  • Python tooling for deploy-script generation, schema drift detection and load-test harnesses
  • Streamlit-in-Snowflake for operational dashboards that run where the data already lives
  • Git as the source of truth — one file per database object, generated deploy scripts, and real per-object history

Proof

We recently designed and deployed a multi-entity general ledger data hub on Snowflake for a Tier-1 financial institution — in production, under full change control, with no customer records or PII available to us at any point during the build.

Read the case study →

Why choose Datagize

Nearly 40 years in data

Fortune 500 data programs across 10+ industries. You work with the founder, not a placement.

50% faster delivery

Measured on a Tier-1 financial institution’s production data hub. Read the case study

Zero records exposed

The entire migration was built and validated on synthetic data, inside the bank’s own change-control process.

Ready to transform your data?

Explore our services or contact us for personalized guidance

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