Marcus Denison

Data Platform Engineer & Airflow Expert

Self-service data platforms other teams can safely build on.

Routine, not risk. With over 15 years in software engineering, I build data platforms with Apache Airflow, dbt and Amazon Redshift or Athena on AWS — GDPR-compliant, automated, and designed so your team can run them on its own.

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DatabasesAPIsCustom sourcesAirflowData WarehouseDashboardsAI / RAGReporting

What I do

Data platforms that work day to day

Apache Airflow: Adoption & Migration

Introducing Airflow as your central orchestration tool, replacing home-grown ETL and migrating to Airflow 3 — with clean DAG conventions, monitoring and CI/CD.

Self-Service Data Platforms

Data platforms built on Amazon Athena, Glue and S3 with dbt and Spark, where teams model, analyze and visualize data in Superset on their own — with Databricks where it fits.

Data Warehouse & Customer Data Platform

Data warehouses and customer data platforms on Amazon Redshift — including integrations with sources such as Salesforce or Adobe Marketing Cloud.

Privacy Engineering & GDPR

Data protection built into the platform rather than checked afterward: automated handling of data subject requests, clean access separation and data governance — with the GDPR and the EU AI Act in mind.

AI & RAG on Company Data

Internal chatbots and RAG applications built with LangChain on your company's data — with multi-tenant access control, so users only see what they're allowed to see.

Cloud Infrastructure & IaC

Reproducible data platform infrastructure on AWS with Terraform, Kubernetes (EKS) and Docker — versioned, automated and safe to change.

How it works

How we work together

01

Assessment

I get to know your existing data flows, tools and requirements, and identify where the biggest levers are.

02

Build with your team

I work inside your team, from architecture to production code, in small, reviewable steps.

03

Handover & enablement

Documentation, conventions and knowledge transfer, so your team can run and evolve the platform on its own.

Technology

Built on a proven stack

  • Apache Airflow
  • Python
  • SQL
  • AWS
  • Amazon Redshift
  • Amazon Athena
  • dbt
  • Spark
  • Kubernetes
  • Terraform
  • Docker
  • Superset
  • Databricks
  • Scala
  • Java
  • FastAPI

Let's build something resilient.

Whether it's introducing Airflow, a new self-service platform or a move to the cloud — let's talk about what your team needs.

Get in touch