Daniel Simmons
Senior Product Engineer at WeTravel
Amsterdam, North Holland, Netherlands
Summary
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RockstarDaniel Simmons is a Senior Product Engineer with 16 years of experience building scalable, high-performance systems and delightful developer and user-facing tools. Based in Amsterdam, he blends deep SRE and backend expertise from roles at Uber and GoodHabitz with product-focused engineering work in mobile and platform teams, including a staff contract at project44 and co-founding a consumer mapping app. He’s comfortable across the stack—Go, Node.js, React Native, Protobuf/gRPC, Kubernetes and cloud platforms—and has hands-on experience designing PCI-compliant infrastructure, schema registries, and developer orchestration tooling. His open-source contributions to projects like ringpop-node show attention to deployment/testability and maintainability, not just features. Pragmatic and mission-driven, Daniel prioritizes performance, scalability and UX while hiring and leading teams to operational excellence.
16 years of coding experience
12 years of employment as a software developer
English
Stackoverflow
1,155reputation
495kreached
8answers
1question
command-line-interface
top-5%
Github Skills (13)
javascript10
nodejs10
command-line-interface9
configuration-management9
testing7
jquery-ui6
php6
buffering6
stdin6
jquery6
tty6
exec6
open-source5
Programming languages (12)
Github contributions (5)
uber-node/ringpop-node
Oct 2015 - Jul 2016
Scalable, fault-tolerant application-layer sharding for Node.js applications
Role in this project:
Back-end Developer
Back-end DeveloperContributions:12 commits, 9 PRs, 8 pushes in 8 months
Contributions summary:Daniel primarily contributed to the `tick-cluster` tool, adding options for interface and port configuration, and disabling interactive mode when stdin is unavailable, enabling background testing. They also updated license headers across multiple files, indicating a focus on code maintainability and project setup. These changes suggest work related to the core functionality and configuration of the ringpop-node project, likely improving its deployment and testing capabilities.
fault-tolerantnodejs-applicationsharding
dansimau/hal
Dec 2024 - Jul 2026
Program Home Assistant automations using Golang
Contributions:7 reviews, 6 PRs, 42 pushes in 1 year 7 months
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