The depth and the range.
Most technology is built by people who think the same way and learned from the same tradition. SedaSoft was not. David came to technology through History - through the discipline of treating information as evidence, of building structures that make knowledge trustworthy over time. Seamus came through engineering and systems thinking - through the discipline of building things that hold under pressure, that can be documented, defended, and improved. One thinks in meaning. The other thinks in mechanism. Both, as it turns out, are necessary for what they set out to build.
Seamus Waldron
The Range
As a problem-solving innovator, Seamus has built a career in technology which spans across data intelligence, enterprise architecture and edge computing.
As Founding Partner of Sedasoft, his collaboration with David Bosdet has been defined by years of market-leading innovations, almost all of which stemmed the original architecture of SiteEngine, a declarative, object-based information system that turned out to be, in effect, a vector database before vector databases existed.
He now builds bespoke AI-powered knowledge systems that combine Retrieval-Augmented Generation, knowledge graphs and cognitive AI to support auditable, evidence-based decision-making, including applications within UK local government.
His most recent innovations include the Efficiency Engine architecture the first per-query carbon accounting framework for AI inference at the application layer and Hydrate, the first ever tool to give LLM coding assistants portable working memory across sessions, tools and models.
He has also led data warehouse transformations for financial institutions operating under SOX and FCA compliance, built ETL and migration systems for local government meeting statutory data retention obligations and advanced software and hardware solutions for central government agencies.
In their earlier days, Sedasoft created the first web-based online recruitment system in Europe for an international bank and the first European military on-line recruitment system for the UK Royal Air Force. They later built the first municipal searchable online historical archive in the UK, a subscription publishing platform for niche busines information and an online corporate learning platform whose concept of 'communities of practice' predated Google Circles by several years.
Earlier in his career, Seamus was a Senior Research Engineer at Corechange in Boston, where the company's portal software and signal sign-on technologies defined the corporate portal market. He was also a Systems Analyst at MAID Plc where he co-invented Profound for Internet - one of the first business intelligence alerting systems for knowledge workers.
David Bosdet
The Depth
David studied history at Cambridge University, then taught himself an entire technical discipline from scratch - starting from building websites by hand in the mid-1990s before moving onto information design, data architecture and infrastructure for online applications. The result, acquired methodically over three decades, is a level of information architecture expertise that many formally trained engineers do not reach.
That background is an important factor in SedaSoft has built. A historian doesn't treat information in the same way as a computer scientist - as data to be stored and retrieved. A historian treats information more as evidence, as something to be structured, cross-referenced, sourced and weighted by reliability.
His interest in foundational AI and LLM research has underpinned the development of SiteEngine AI as a local-first RAG pipeline - in the citation system, in the knowledge graph's entity relationships, in the confidence scoring, in the evidence provenance trails. These represent a particular way of thinking about how information works and how this can be expressed in code.
David was part of London's Shoreditch technology scene in the 1990s, among the first generation of practitioners who laid the foundations for the modern web we now take for granted. As a Solutions Architect, he has operated ever since at the intersection of business complexity and technical possibility: defining strategy, translating requirements into structure, identifying risk early and ensuring that what gets built is not just scalable and secure, but meets long-term business objectives.
David’s career has included several years as head of software development at a financial service e-learning company specialising in compliance. He also founded a company producing ‘walk through’ videomontage imagery of renewable energy projects based on the Cesium 3D Geospatial platform.
David's photography portfolio on Flickr has over eight million visits. The work of someone who sees structure and pattern where others see noise - expressed in a different medium, with the same precision.