Johnny Chan
Senior Backend Developer at Flagstone
London, England, United Kingdom
Summary
👤
Senior🎓
Top SchoolJohnny Chan is a Senior Backend Developer based in London with over 15 years of C# and .NET experience building scalable web and cloud-native systems. He specialises in serverless, event-sourced architectures and backend microservices with .NET Core, and pairs that with front-end React/TypeScript skills to deliver end-to-end solutions. Johnny has extensive Azure and AWS experience—implementing Event Grid, CosmosDB, Service Fabric, Lambdas and infrastructure as code—to ship regulatory and high-throughput payment systems. He’s driven by agile practices and “shift-left” testing, taking full ownership of CI/CD, observability and production resiliency. Notable work includes delivering PSD2 SCA capabilities and architecting a multi-tenant SaaS market research platform using event-driven patterns. Practical, hands-on and detail-oriented, he blends deep backend expertise with platform-level DevOps discipline to turn complex requirements into robust, maintainable services.
10 years of coding experience
20 years of employment as a software developer
BSc, Computer Science, 2.1, BSc, Computer Science, 2.1 at University of Leicester
Chinese
Github Skills (41)
nuget9
netstandard9
async-await9
ddd8
rabbitmq8
event-sourcing8
eventstore8
cqrs8
dotnet-core7
dotnet7
domain-driven-design7
netcore7
elasticsearch6
csharp6
injection6
Programming languages (3)
Github contributions (5)
johnny-chan/SportsMonk
May 2020 - Jul 2020
A .net core wrapper for the SportsMonk api v2.0
Contributions:18 PRs, 37 pushes, 18 branches in 2 months
apidotnetcsharpnet-core
johnny-chan/KnowYourCustomerDemo
Feb 2018 - Jun 2018
Contributions:4 PRs, 20 pushes, 6 branches in 4 months
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