I started in data over 12 years ago — no formal training, just curiosity, good people, and the drive to make things work.
Since then, I've worked with organisations across industries to build data platforms that are fast, reliable, and business-focused. In recent years, I’ve focused on:
Designing end-to-end platforms using modern data tools and platforms
Leading teams and mentoring developers through delivery and handover
Helping clients navigate the messy middle of projects: transition, continuity, and clarity
This site exists as a space to share things I've learned — patterns, approaches, and opinions that might help someone else along the way.
I’m currently a Senior Consultant at Snap Analytics, where I focus on enterprise data platform builds and delivery strategy. I love chatting about information and business challenges so get in touch if you’d like to chat.
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Bringing structure to complexity
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Modern platforms, delivered right
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Practical governance for real-world delivery
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Making the handover a strength, not a stress
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Translating ambiguity into action
Testimonials
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One of the most talented and genuine people I’ve worked with. Takes a very measured and pragmatic approach to Projects or resolving problems. Always identifies the positives that can be taken from difficult situations or relationships. An asset to any organisation both technically and personally.
Richard Miller (Senior Analytics Analyst) - Adaptavist
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I worked with James for many years in a variety of capacities. James effectively and efficiently managed a student assessment operation (~18k students) whilst I was seconded to a project. I have done a lot of work on MIS/warehouse development with James and he has produced excellent results in this. But perhaps most important of all James is a kind and compassionate person so is always a pleasure to work with.
Colin Clark (Assistant Registrar) - University of Sussex
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James Mullan was one of the best data engineers on the project with his experience with Matillion and Snowflake was critical to the project's success. Even though he had not worked in the financial or stock market section he picked up data understanding very fast. I hope to have a chance to work with him again in future.
James Rawlinson, Cloud Architect - London Stock Exchange Group (LSEG)