Stefán Stefánsson
Technical Lead For IoT Ingress at Controlant
Iceland
Summary
👤
Senior🎓
Top SchoolStefán Stefánsson is a seasoned software engineer and technical lead with 13+ years building high-performance, scalable enterprise systems and IoT ingress platforms from Iceland. He combines deep expertise in database design and performance tuning with hands-on experience in real-time stream processing, CEP, and big data analytics, and has led teams at Controlant and WuXi NextCODE. Stefán’s background includes academic roles supervising robotics and autonomous underwater vehicle projects, reflecting uncommon practical experience in computer vision and control software alongside backend engineering. An active contributor to open-source tooling, he’s implemented robust type converters and testing improvements in popular Java configuration libraries. He is equally comfortable mentoring students and leading cross-functional engineering teams to production-grade, performance-sensitive solutions.
13 years of coding experience
18 years of employment as a software developer
M.Sc. Computer Science, M.Sc. Computer Science at Reykjavik University
Icelandic, English
Github Skills (12)
unit-testing10
javas10
properties-file10
configuration-management10
configurations10
application-properties10
system-properties10
custom-properties10
configuration-file10
dependency-properties10
java10
spring-properties10
Programming languages (19)
Github contributions (5)
matteobaccan/owner
Feb 2016 - Mar 2018
Get rid of the boilerplate code in properties based configuration.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:17 commits, 7 PRs, 29 comments in 2 years
Contributions summary:Stefán primarily contributed to the implementation of type converters within the `owner` repository, specifically focusing on Java 8 Duration conversions. Their work involved creating a `DurationConverter` class, adding tests for different duration string formats (including ISO-8601), and modifying the documentation. They also implemented a `ByteSizeConverter` and included unit tests. In addition, the user added functionality to register default converters for types and addressed issues related to the handling of null values in property maps.
configurationboilerplateboilerplate-codeobjectmapperproperties
StFS/stfs.github.io
Mar 2021 - Apr 2024
✨ Build a beautiful and simple website in literally minutes. Demo at https://beautifuljekyll.com
Contributions:2 PRs, 22 pushes, 1 branch in 3 years 1 month
tailwindcsssimple-websiteminutes
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