Data engineering platform

Air-gapped ETL that knows what compliance looks like.

Smelter is the data engineering platform behind every system we ship. Self-hosted by default, air-gappable where regulation requires it, with the compliance primitives — lineage, reconciliation, replayability — baked into the runtime rather than bolted on as an afterthought. It connects systems of record into a single operational model your finance, ops, and audit teams can all read from.

What we deliver

What we deliver

  • Connector framework for ERPs, CRMs, HRMS, data lakes
  • Air-gapped, self-hosted deployment
  • Financial consolidation and period-end automation
  • Compliance pipelines (GST, ZATCA, SOX-ready)
  • Master data management and reconciliation
  • Audit-grade lineage end-to-end
Stack we deploy

Tools and infrastructure we ship on.

Partner platforms
  • Apache Spark
  • Airflow
  • PostgreSQL
  • Kafka
Built on engineo
  • Quarry
Air-gapped
Self-hosted by default
Period-end
Compliance pipelines built in
Audit
Lineage end-to-end
How Smelter gets deployed

From source inventory to a running operational model.

Smelter doesn't sit in a public cloud answering questions. It runs inside the enterprise, on the network where the data already lives — and the deployment pattern reflects that.

  1. 01

    Source inventory

    Catalogue every system of record, every consumer, and every reconciliation that already exists in spreadsheets. Map the volume, the period-end pressure, and the compliance boundaries.

  2. 02

    Model design

    Design the unified operational model — chart of accounts, master data, dimension keys — that the downstream consumers will read from. Reconcile against the existing books before going live.

  3. 03

    Pipeline build + reconciliation

    Connectors built or reused, transformations versioned in Git, lineage emitted on every run. Period-end runs are dry-rehearsed and signed off by finance before cutover.

  4. 04

    Operate inside the network

    Smelter runs air-gapped on customer infrastructure. Our engineers operate it under a managed-services SLA — period-end runs, compliance updates, and new pipelines on a known cadence.

Sector scenarios

Where Smelter underpins the work.

Highest-leverage deployments by industry — where the data pipeline is the difference between a clean close and a quarter of overtime.

Multi-entity manufacturing

Consolidating ERP, MES, and procurement data across plants — feeding a unified operational ledger, intercompany eliminations, and a single period-end close.

One close, every entity, on time.
Banking & financial services

Regulatory and risk pipelines — RBI returns, capital adequacy, and AML feeds reconciled against the core banking system with full lineage.

Regulatory runs without a war room.
Cross-border SaaS

Revenue, billing, and tax data unified across geographies — feeding the consolidation engine and the audit pack with the same dataset, in the same shape.

Audit and management book in lockstep.
Start a conversation

Bring us your hardest build.

30-minute discovery call. No decks, no boilerplate — senior engineers in the room, the same ones who'd own delivery.