Daniel
Spain, United States
Summary
👤
SeniorDaniël Zwijnenburg is a pragmatic freelance Elixir, Ruby and JavaScript developer with 11 years of experience building tested, maintainable web applications and automations. He combines deep Rails and Ruby expertise with modern Elixir/Phoenix work, a strong front-end background (React, Backbone, jQuery) and practical server automation (Ansible, AWS, Rackspace). A certified Scrum Master who lives XP practices, he emphasizes TDD, pair programming and continuous delivery to keep code simple and reliable. Daniël has held roles from developer to CTO and co-founder, bringing both hands-on implementation skills and product-minded leadership. He routinely shares knowledge through internal training and cross-team collaboration, which has helped him move teams from manual ops to automated deployments. Based in the Netherlands, he’s known for clear, continuously tested code and a preference for pragmatic tooling choices that scale.
11 years of coding experience
Github Skills (83)
lorawan10
coap10
telemetry10
mqtt-protocol10
newrelic10
angular9
messaging9
broker9
message-queue9
lwm2m9
emqx9
m2m9
docker9
iiot9
erlang9
Programming languages (7)
Github contributions (5)
danipl/SmarrentJob
Jan 2018 - Jan 2018
Contributions:29 pushes, 2 branches, 3 tags in 15 days
danipl/financial-breaker-ai
Jan 2026 - Feb 2026
Contributions:49 pushes, 1 branch in 2 days
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