Johan Karlsteen
Distinguished Software Engineer at Devrandom Aktiebolag
Norrköping, Sweden
Summary
👤
Senior🎓
Top SchoolJohan Karlsteen is a distinguished software engineer with 15+ years of experience building and architecting cloud-native and Salesforce-integrated systems across telecom, fintech, and public sector clients. A true generalist who’s been exploring hardware and software since 1987, he moves effortlessly between Java, Python, Apex and cloud platforms, and has led teams and migrations from Classic to Lightning at scale. He combines hands-on coding with pragmatic architecture work—refactoring legacy systems, designing integrations, and saying “no” when it keeps projects healthy. In his spare time he runs TopTrailblazers, a Trailhead leaderboard that grew to thousands of users and hundreds of thousands of badges, demonstrating a knack for small projects that scale. Social and approachable despite deep technical chops, he’s equally likely to be debugging a compile error at midnight or planning Wi‑Fi access points for his new house.
15 years of coding experience
18 years of employment as a software developer
MScCSE computing science, MScCSE computing science at Umeå University
Swedish, English, German
Github Skills (14)
salesforce9
python7
duolingo6
espn5
url-parsing5
python-interface4
swiftui4
uiviewcontroller4
api3
ios3
swift3
messaging3
cocoapods2
xcode2
Programming languages (4)
Github contributions (5)
snorf/mydht
Feb 2011 - Jul 2011
Contributions:38 commits in 4 months
snorf/sf-metadata-lifecycle
Sep 2017 - Jun 2018
Contributions:79 pushes, 5 branches in 9 months
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