Arthur Ulfeldt
Software Engineering Manager at Qlik
California, United States
Summary
🤩
Rockstar🎓
Top SchoolArthur Ulfeldt is a Software Engineering Manager with 16 years of experience leading backend, security, and infrastructure work across companies like Qlik (formerly Talend) and Yummly. A Linux- and Clojure-focused engineer, he combines deep systems and kernel experience from early roles with modern cloud deployment and Docker orchestration. He’s known for hands-on improvements to database migrations, SMTP security, and container configuration in notable open-source projects such as Metabase. As a manager he balances technical leadership with coaching, bringing a pragmatic security mindset from past roles in VM networking and storage. Based in California, he also pursues amateur radio and martial arts, reflecting a taste for disciplined, practical hobbies that mirror his engineering approach.
16 years of coding experience
17 years of employment as a software developer
University of California Santa Cruz
Stackoverflow
91,238reputation
4.5mreached
1,302answers
109questions
namespaces
top-5%
lazy-evaluation
top-1%
compilation
top-5%
interop
top-5%
malloc
top-5%
dictionary
top-5%
Github Skills (57)
database-migrations10
postgresql10
clojure-cli10
macros10
clojure10
lazy-evaluation10
database-migration10
testing9
jvm9
compilation9
unit-testing9
matrix9
java9
dockers9
hashmap9
Programming languages (13)
Github contributions (5)
metabase/metabase
Apr 2017 - Jul 2017
The easy-to-use open source Business Intelligence and Embedded Analytics tool that lets everyone work with data :bar_chart:
Role in this project:
Back-end Developer
Back-end DeveloperContributions:75 commits, 33 PRs, 183 pushes in 2 months
Contributions summary:Arthur primarily focused on back-end database-related tasks and infrastructure. Their contributions include consolidating database migrations into a single file to improve startup times, adding support for STARTTLS SMTP authentication for secure email connections, and fixing database pre-migration issues specific to PostgreSQL. Additionally, the user worked on Docker container setup and configuration, ensuring proper user permissions and database file handling within the container environment. This includes setting up SSH tunnels for secure database connections.
business-intelligenceembedded-analyticsanalyticsbusinessintelligencedashboard
thearthur/arthur-s-emacs-config
Sep 2011 - Jul 2019
Contributions:48 commits, 17 pushes in 7 years 11 months
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