Database Design and Data Engineering

Clean schemas, reliable pipelines, and data foundations built for long-term growth. Senior-led database engineering for businesses across the UK and Isle of Man.

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Data Foundations Built for Growth

We design and engineer databases and data platforms for businesses across the UK and Isle of Man. Clean, well-structured schemas that support your applications reliably. Scalable data architectures that perform well as your data grows. Data pipelines that move information accurately and on time. And the kind of data foundation that makes reporting, analytics, and integration straightforward rather than a constant source of friction.

Databases sit at the heart of every software system. A well-designed database schema makes everything built on top of it cleaner, faster, and more maintainable. A poorly designed one creates problems that compound with every new feature, every additional user, and every attempt to extract meaningful information from the data. The decisions made in the first week of a database design project determine how much everything else costs for the next decade.

Every database and data system we design is the work of Owen Jones, OLXR's founder and lead engineer, with over a decade of experience designing production database systems across fintech, e-gaming, SaaS, and enterprise. We treat database design as the engineering discipline it is - not something to rush through before getting to the interesting parts of the application.

Who This Is For

Dev teams building new applications that need the database designed properly from the start
Businesses with database performance that has degraded over time and needs investigation
Organisations with reporting needs that their current database structure cannot support efficiently
Companies migrating between database platforms and needing the migration done safely
Teams with a poorly structured inherited database that needs redesigning without breaking existing systems
Businesses consolidating data from multiple sources into a single reliable platform

Our Approach

1
Design for the Queries, Not Just the Data

A database schema that stores data correctly but makes the queries your application needs to run slow or complex is a poorly designed schema. We design database structures with the access patterns of the application in mind - understanding what queries need to be fast, what data needs to be aggregated, and what relationships need to be traversed - and making schema and indexing decisions that support those patterns efficiently.

2
Normalise with Purpose

Database normalisation is a tool, not a rule. Over-normalised schemas make queries complex and slow. Under-normalised schemas create update anomalies and data integrity problems. We apply normalisation principles with judgment - normalising where it prevents data integrity issues, and deliberately denormalising where the query performance benefit justifies the trade-off. Every structural decision is made consciously rather than by convention.

3
Build Security In

Database security is built into our design process from the start, not added afterwards. That means role-based access control that restricts what each application component can read and write, encryption for sensitive data at rest and in transit, audit logging for operations on sensitive records, and a principle of least privilege that limits the potential impact of any single security failure.

Why Choose OLXR

Database design is one of the most undervalued disciplines in software development. It is common for development teams to treat the database as an afterthought - designing the application first and fitting the database around it. We treat database design as a first-class concern.

Senior-Led

Over a decade of production database experience

Data-First

We treat the database as a first-class concern

Honest Assessment

We will tell you what your schema actually needs

Long-Term Support

We maintain and optimise after launch

The decisions made in the first week of a database design project determine how much everything else costs for the next decade.

OJ
Owen Jones
Founder & Lead Engineer

Technologies We Use

SQL Server
PostgreSQL
MariaDB
SQLite
EF Core
AWS RDS
Azure SQL
Python
Power BI
Tableau

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Frequently Asked Questions

Yes - we regularly work with existing databases, whether you need performance optimisation, schema redesign, migration to a new platform, or new integration. We assess the existing schema, identify the structural and performance issues, and recommend the most practical path forward given your constraints on downtime and disruption.

Data migration is a structured process with multiple validation checkpoints. We map the source and destination schemas in detail, write and test the migration scripts in a non-production environment, run the migration with validation at each stage, and do not consider the migration complete until the data in the destination has been verified against the source. For production migrations, we design for minimum downtime and have a rollback plan in place before anything starts.

Yes - database performance problems almost always have identifiable root causes: missing indexes, inefficient query patterns, schema structures that make necessary queries expensive, or statistics that have not been updated. We conduct a systematic analysis of your database - reviewing query execution plans, index usage, and schema structure - and implement targeted improvements that address the actual causes rather than applying generic optimisations.

Yes - changing database platforms is something we handle regularly. Whether you are moving from SQL Server to PostgreSQL, consolidating multiple databases onto a single platform, or migrating from a legacy system to a modern cloud database, we plan the migration carefully, validate data integrity at every stage, and run both systems in parallel until the switch-over is validated. The approach depends on the scale and complexity - we assess your situation during discovery.

We design reporting layers that work with the tools you use or plan to use. We have experience designing structures for Power BI, Tableau, and custom reporting dashboards. The design approach differs depending on the tool - Power BI in particular benefits from a specific star schema approach - and we design accordingly.

Ready to Get Your Data Under Control?

Tell us about your data challenges. We will give you an honest assessment of what is causing them and what a well-designed solution would look like.

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