Dan Barkwell
Senior Software Engineer at Semperis
Toronto, Ontario, Canada
Summary
👤
Senior🎓
Top SchoolDan Barkwell is a Senior Software Engineer based in Toronto with 11 years of experience building robust, cloud-first applications across .NET, Node.js and TypeScript. He has a strong track record modernizing systems—rewriting functionality into AWS Lambdas, integrating services with Redis, Elasticsearch and Azure components, and containerizing deployments with Docker. Comfortable across the full stack, Dan combines backend API design and secure data handling (symmetric/asymmetric encryption, KeyVault) with front-end work in Vue and practical DevOps automation. He contributes to open-source, notably improving smtp4dev with UI sorting, API enhancements and Windows service support, reflecting attention to developer experience and deployment nuances. Colleagues rely on him for thoughtful design specs, troubleshooting distributed services (MSMQ, NServiceBus) and smoothing production rollouts. His background in systems analysis and long tenure across enterprise and SaaS environments gives him a pragmatic, reliability-first approach to shipping maintainable software.
11 years of coding experience
17 years of employment as a software developer
Systems Analysis and Design, Systems Analysis and Design at Humber College
English
Stackoverflow
31reputation
53reached
0answers
1question
Github Skills (19)
asp-net-core10
dotnet-core10
netcore10
csharp10
javascript9
typescript9
typescript-types9
vue9
vue-jsx9
typescripts9
apidoc8
api8
signalr8
css7
windows-service7
Programming languages (5)
Github contributions (5)
rnwood/smtp4dev
Aug 2018 - Oct 2018
smtp4dev - the fake smtp email server for development and testing
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:8 commits, 2 PRs in 1 month
Contributions summary:Dan implemented several features and bug fixes for the SMTP4dev project, including adding column sorting functionality within the message list and API, as well as enhancing the application to run as a Windows service. They made changes to the front-end components, API client, and back-end controllers to support these new features. The user also fixed content root locations and reversed service startup arguments, demonstrating attention to deployment configurations.
smtpmacosxwindowsemail-smtptesting
dbarkwell/dbarkwell.github.io
Feb 2017 - Nov 2024
Contributions:35 pushes, 1 branch in 7 years 10 months
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