Behan

Data Lake & Analytics Engineering

Turning operational data into trusted, performance-grade insight.

Behan designs and delivers robust, scalable data warehouse solutions that transform complex operational systems into structured, decision-ready platforms.

From schema modelling and ETL architecture through to performance tuning and governance, we build environments that are engineered for clarity, speed and longevity. Modern Lakehouse architectures are a smarter way to store, manage, and use your data.

Whether you're running legacy reporting tools, juggling multiple source systems, or simply struggling to keep up with growing demand, we build a solid data foundation that scales with you.

Our approach combines deep database expertise with practical business understanding — ensuring your data works as hard as you do.

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Our Core Capabilities

1. Data Architecture & Schema Modelling

1. Data Architecture & Schema Modelling

We design clean, scalable data models that reflect real business processes.

  • Dimensional modelling (star / snowflake schemas)
  • Normalised warehouse structures where appropriate
  • Data marts aligned to reporting domains
  • Metadata-driven design principles
  • Refactoring legacy or organically grown structures

We prioritise clarity, performance and long-term maintainability over quick fixes.


2. ETL & Data Integration Engineering

2. ETL & Data Integration Engineering

Reliable pipelines are the backbone of any warehouse.

  • Full and incremental load strategies
  • Change data capture (CDC) design
  • Source system integration (Oracle / any RDBMS, Salesforce, PeopleSoft, flat files, APIs)
  • Data validation and reconciliation frameworks
  • Error handling and audit logging

We engineer ETL processes that are observable, repeatable and resilient - not opaque scripts that only one person understands.


3. Data Transformation & Business Logic Engineering

3. Data Transformation & Business Logic Engineering

Data only becomes valuable once it’s consistent and meaningful.

  • Complex transformation logic implementation
  • Business rule formalisation
  • Derived metric calculation
  • Historical tracking (SCD strategies)
  • Aggregation and performance-optimised summaries

We work closely with stakeholders to ensure definitions are clear, aligned and defensible.


4. Performance Optimisation & Tuning

4. Performance Optimisation & Tuning

A warehouse must scale - and stay fast.

  • Query tuning and execution plan optimisation
  • Partitioning strategies
  • Index design and statistics management
  • Archivelog and redo optimisation
  • Storage layout and I/O optimisation

We specialise in high-performance Oracle environments and understand how to push the platform properly.


5. Governance, Monitoring & Documentation

5. Governance, Monitoring & Documentation

Sustainable data platforms require structure.

  • Data lineage tracking
  • Audit and usage monitoring
  • Metadata cataloguing
  • Deployment and version control strategies
  • Support runbooks and handover documentation

We build systems that can be supported long-term - not just delivered.


Our Approach

Our Approach

Behan combines hands-on technical depth with structured engineering discipline.

We favour:

  • Clear SQL over unnecessary abstraction
  • Measured performance testing over assumptions
  • Transparent logic over black-box tooling
  • Incremental improvement over disruptive rebuilds

Whether modernising a legacy warehouse or building a new platform from scratch, we focus on delivering data environments that are trusted, explainable and built to last.

Every project starts with a plan.

Let's talk.

Ready to talk?

Whether you have a specific project in mind, need ongoing support, or just want to discuss your Oracle challenges, we'd love to hear from you.

Call us on 0800 246 1675 or
Book a Meeting

General enquiries: info@behan.co.uk

New projects: projects@behan.co.uk

Careers: careers@behan.co.uk

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