Our Story

We start working with Milliman, one of the world's largest actuarial consultancies, to architect and deliver a cloud-native solution on Microsoft Azure. Together, we help Milliman become the first financially regulated organisation to run a production workload on Azure in the UK — proving that the cloud could meet the stringent compliance requirements of financial services.

Paul Waller joins endjin, bringing creative talent across branding, UX, and visual design. Paul goes on to shape the visual identity of endjin and its clients, setting a standard of design quality across everything from websites to Power BI reports.

We begin working with Reed.co.uk, the UK's #1 job site, helping their engineering and executive leadership teams transform their working practices. What starts as an "endjin intervention" — a frank retrospective on how projects are planned and delivered — kickstarts a wholesale transformation and evolves into a long-running partnership spanning new proposition development and engineering maturity assessments.

We launch Azure Weekly — a free, curated weekly newsletter bringing together the most important Microsoft Azure news, updates, and community content into one place. Azure Weekly quickly grows to become a trusted resource for the Azure community worldwide.

We begin working with Watchfinder, the UK's premier pre-owned watch retailer, through our Brain Trust service — giving their CTO direct access to strategic advice on architecture, cloud migration, and Machine Learning. We go on to help advise Watchfinder about their migration from AWS to Azure PaaS, design a platform that scales elastically to handle viral TV campaigns, and build out their data-driven pricing and recommendations capabilities.

We begin working with TalkTalk, the UK's leading value-for-money telecoms provider, to tackle unexplained spikes in network telemetry from over 1 million set-top boxes. We built an anomaly detection platform and go on to create a secure modern data platform, using Machine Learning and Data Lake, which transforms how TalkTalk understands customer experience, quality of service, and churn.

endjin is featured as a Microsoft for Startups case study, recognising how we use the Microsoft platform to help organisations achieve big things with small, expert teams.

We were already collaborating online with our increasingly global customer base, so when summer-long engineering works at London Waterloo disrupted the commute, we gave fully remote a try. It was so successful we never went back; and it opened up the talent pool to hire exceptional people from around the UK, and allowed some employees to be Digital Nomads.

Jonathan George joins endjin as a software engineer, bringing skills across Azure, .NET, and data visualisation. Jon quickly becomes a core member of the engineering team, contributing to client delivery and open source projects.

Ian Griffiths joins endjin as Technical Fellow. A Microsoft MVP, Ian brings decades of .NET expertise and a reputation as one of the foremost authorities on C#. He is the author of "Programming C#" (O'Reilly) and core maintainer of the Reactive Extensions for .NET.

The endjin team attends SXSW 2019 in Austin, Texas — exploring the intersection of technology, culture, and innovation at one of the world's most influential festivals.

We work with OceanMind, a Microsoft AI for Earth grantee who use data and Machine Learning to combat illegal fishing and human trafficking. We design and built a serverless data platform on Azure capable of ingesting and analysing marine vessel activity across the world's oceans in near-realtime. We also built and open sourced AIS.NET - our zero allocation, high performance AIS message parser.

We begin working with Juniper Education, who support over 7,000 schools across 20 countries. Using Azure Synapse Analytics, Azure Data Lake, and Power BI Embedded, we build a modern data platform that delivers interactive, insight-driven experiences directly into Juniper's products: giving schools and multi-academy trusts the data they need to improve pupil outcomes.

James Dawson joins endjin, bringing deep expertise in DevOps, infrastructure as code, and Azure automation. James strengthens the team's platform engineering capabilities and commitment to engineering excellence.

We help Ascot Lloyd, one of the UK's largest independently owned wealth management firms, to build a cloud-native data platform using Azure Synapse Analytics, Data Lake, and Power BI. Starting with our Azure Readiness Assessment and Insight Discovery process, we designed and delivered an industry-leading reporting platform. Our Brain Trust service then supported their growing data team until they were fully self-sufficient.

After five years collaborating with Microsoft, we help open source Reaqtor under the .NET Foundation — a distributed, reliable event processing framework built on Rx.NET, used by Bing, MSN, and Microsoft 365 to handle billions of standing stateful queries. endjin becomes the project maintainer. To mark the occasion, we publish A Little History of Reaqtor — a free book by Bart De Smet (Microsoft) tracing the people, projects, and ideas behind 15 years of reactive programming in .NET.

We take over as primary maintainers of the Reactive Extensions for .NET, one of the most influential open source projects to emerge from the .NET ecosystem with over 160 million NuGet downloads. Led by Ian Griffiths, we modernise the library and ship Rx.NET v6.0 within the first six months.

Ian Griffiths published the Introduction to Rx.NET 2nd Edition — a free, nearly 100,000-word book on reactive programming, available in PDF, EPUB, and online. Based on Lee Campbell's original 2010 book, which he kindly donated to the .NET Foundation, Ian rewrote and modernised it with new marble diagrams and examples focused on cloud-native scenarios like IoT and stream data processing.

Barry Smart, Ed Freeman, and James Broome present at SQLBits 2024 at Farnborough IECC — Europe's largest expert-led data conference. Barry and Ed deliver a full-day DataOps workshop, while James presents on ensuring quality and avoiding inaccuracies in data insights on Community Saturday.

We came together to remember & celebrate our beloved colleague, Paul Waller, who died from Motor Neurone Disease on the 27th February 2025, by doing something he loved: visiting a museum and having a bloody good lunch.