Cian Butler
Senior System Reliability Engineer at Cloudsmith
Dublin, Ireland
Summary
🤩
Rockstar🎓
Top SchoolCian Butler is a Senior System Reliability Engineer based in Dublin with 11 years of experience building and operating high-scale, security-focused infrastructure for startups and gaming platforms. He’s helped design confidential computing and PCI-compliant encryption proxies at Evervault, engineered billion-point telemetry pipelines and OpenTelemetry unification at Demonware, and modernised Kubernetes and observability stacks for the Raspberry Pi Foundation. Comfortable across Node.js, Bash, Java and Python, he pairs hands-on coding with SRE practices—shipping reliable API services and developer tooling while also contributing UX improvements to open-source projects like a browser terminal and Grafana dashboard tooling. He’s as comfortable adding a reconnect button to a web terminal as he is architecting distributed tracing and incident automation, bringing both developer empathy and operational rigor to production systems.
11 years of coding experience
11 years of employment as a software developer
High School, leaving cert, High School, leaving cert at High School RathgarBachelor's Degree, Computer Programming, Specific Applications, Bachelor's Degree, Computer Programming, Specific Applications at Dublin City University
English, Irish, German
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (29)
monitoring10
apim10
userscripts10
javascript10
dashboard10
python10
scripting10
amazon-elasticsearch10
css10
user-interface10
grafana10
elasticsearchquery10
script10
api10
aws-elasticsearch10
Programming languages (18)
Github contributions (5)
butlerx/wetty
Apr 2017 - Oct 2022
Terminal in browser over http/https. (Ajaxterm/Anyterm alternative, but much better)
Role in this project:
Front-end Developer
Front-end DeveloperContributions:22 releases, 45 reviews, 283 commits in 5 years 7 months
Contributions summary:Cian focused on enhancing the user interface of the web terminal. The primary contribution was adding a reconnect button and handling the logout functionality, which improved user experience. They made changes to the HTML, JavaScript, and CSS files to incorporate the new button and manage display elements. The user also updated the project to use ES6 features and to disable auto-complete features.
anytermxterm-jsxtermjsbrowserajaxterm
weechat/scripts
May 2017 - Oct 2019
Official scripts for WeeChat.
Role in this project:Back-end Developer
Back-end DeveloperContributions:8 commits, 9 PRs, 2 comments in 2 years 5 months
Contributions summary:Cian primarily contributed to the `weechat/scripts` repository by developing and maintaining WeeChat scripts written in Python. Their work includes creating new scripts for functionality like Giphy integration and Spotify URL lookups, enhancing the core functionality of the WeeChat application. Furthermore, the user refactored and enhanced existing scripts, including adding OAuth support.
schemeluacode-golfpythonweechat
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