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Services > Data Engineering

Data infrastructure
that scales.

ETL pipelines, data warehouses, and transformation layers — the foundation that makes analytics, AI, and automation possible.

What We Build

The full data engineering stack.

From raw data ingestion to clean, tested, documented models ready for your BI tools and AI workloads — we build the entire data layer.

ETL/ELT Pipelines

Extract, transform, and load data from any source — SaaS APIs, databases, file systems, and streaming events. Batch and real-time pipelines orchestrated with Airflow, Prefect, or Fivetran. We build for reliability: idempotent runs, backfill support, and alerting when something breaks.

Data Warehousing

Snowflake, BigQuery, Redshift, or PostgreSQL — we design schemas, define table structures, optimize query performance, and manage costs. We choose the right warehouse for your volume, query patterns, and budget. Schema design today determines analytics performance for the next three years.

dbt Transformations

Modular SQL transformations with testing, documentation, and version control. Analytics engineering done right — your analysts write SQL, we make it production-grade.

Real-Time Streaming

Kafka, Kinesis, or Pub/Sub for event-driven data pipelines. Real-time dashboards, anomaly alerts, and operational integrations that act on data as it arrives.

Data Quality & Observability

Automated testing, freshness monitoring, row count checks, and anomaly detection. Know when your data breaks before your dashboards show wrong numbers.

Reverse ETL

Push warehouse data back to operational tools — CRM, ad platforms, email, Slack. Close the loop between analytics insight and business action.

Data Catalog & Governance

Column-level lineage, ownership tagging, access controls, and PII detection. Know what data you have, where it came from, and who can touch it.

Analytics Engineering

We bridge data engineering and analytics — building the transformation layer that turns raw warehouse data into clean, documented models your BI tools can actually use.

Who This Is For

Built for teams that need data they can trust.

Data engineering pays off when bad data is costing you decisions, analyst time, or model accuracy. Here's who we help most.

Data teams that need clean, reliable pipelines

Your analysts spend 60% of their time cleaning data instead of analyzing it. You need infrastructure that delivers clean, tested, documented data — so your team can focus on insights.

Companies outgrowing spreadsheets

Your Excel workbooks are 50MB and crashing. Your team maintains 15 versions of 'the source of truth.' You need a real data platform — and a team to build it fast.

AI and ML teams that need clean training data

Model quality is data quality. If your AI is making bad predictions, the problem is usually upstream — incomplete, inconsistent, or stale data. We fix the foundation.

Analytics engineers adopting dbt

You've heard about dbt and want to modernize your transformation layer. We help teams adopt dbt properly — project structure, testing strategy, documentation, and CI/CD for SQL.

Our Process

From data audit to production pipeline.

01

Assess

We audit your current data sources, existing pipelines, and analytics requirements. We identify data quality issues, gaps in coverage, and quick wins. The output is a prioritized roadmap with ROI estimates.

02

Architecture

We design your data platform: warehouse selection, schema design, pipeline orchestration approach, transformation strategy, and observability plan. We present the architecture for review before building anything.

03

Build

We build pipelines, write dbt models, configure orchestration, and set up data quality tests. Everything is version-controlled, documented, and deployed through a proper CI/CD pipeline.

04

Operate

We hand off with full documentation, runbooks, and alerting configured. Optionally, we provide ongoing support — monitoring, incident response, and new source integration as your data needs grow.

Why Corsox

Data engineering without the big-company overhead

We've built data platforms for companies from Series A to enterprise — Snowflake, BigQuery, dbt, Airflow, Kafka. We know how to right-size the architecture for your stage. US entity for contracting, LATAM engineering for execution — senior data engineers at 40–60% less than US agency rates.

Architecture-first approach

Design reviewed and approved before we build — no surprise rewrites

LATAM data engineers, US pricing advantage

Senior engineers from Colombia, Argentina, Mexico

Common Questions

Questions we hear about data engineering.

Do we need a data warehouse if we're small?

If you have 5+ data sources and need cross-system reporting, yes. Modern warehouses (BigQuery, Snowflake) are pay-per-query — you can start small for under $100/month. The bigger cost is the time your team spends manually pulling and merging spreadsheets. A warehouse eliminates that and gives your analysts a single source of truth.

What's the difference between ETL and ELT?

ETL transforms data before loading it into the destination (traditional approach — common with on-prem systems). ELT loads raw data first, then transforms it inside the warehouse using SQL (modern approach — usually cheaper, more flexible, and easier to debug). We typically recommend ELT with dbt because it's faster to iterate, easier to test, and the raw data is always available for reprocessing.

How long does it take to build a data pipeline?

A basic pipeline (3–5 sources to warehouse to dashboard) takes 3–5 weeks. Enterprise data platforms with real-time streaming, data quality monitoring, and reverse ETL take 8–16 weeks. We always start with a data audit and architecture design phase before building, so you know exactly what you're getting before we write a line of code.

Ready to build data infrastructure that works?

Tell us where your data currently lives and what decisions it needs to support. We'll audit your current stack, design the right architecture, and build pipelines that your analysts and AI systems can actually rely on.