Mårten Rånge
Software Engineer at Schibsted Media Group
Oslo, Norway
Summary
👤
Senior🎓
Top SchoolMårten Rånge is a seasoned software engineer with 16 years of experience, currently shaping data engineering at Schibsted while contracting and contributing across several Scandinavian tech shops. He combines deep backend expertise—evidenced by substantive contributions to the widely used FSharp.Data library, including JSON/XML parser fixes, performance tweaks and culture-aware DateTime parsing—with a taste for metaprogramming and systems design from roles at Atomize and Ericsson. Based in Oslo, he brings an engineer’s pragmatism to production data problems, balancing robustness, performance and test coverage. Notably, his open-source work shows an attention to subtle edge cases (Unicode, CDATA, thread-affine caching) that improves real-world interoperability.
16 years of coding experience
M.Sc, M.Sc at Chalmers University of Technology
English, Swedish, Norwegian
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (11)
json10
fsharp10
type-providers10
testing9
data-access9
xml9
dotnet-core7
csharp7
html4
csv3
http3
Programming languages (14)
Github contributions (5)
fsprojects/FSharp.Data
Apr 2014 - Feb 2017
F# Data: Library for Data Access
Role in this project:
Back-end Developer
Back-end DeveloperContributions:6 commits, 2 PRs, 9 comments in 2 years 10 months
Contributions summary:Mårten primarily focused on improving the JSON parser within the F# Data library. Their work included fixing bugs related to parsing unicode characters and adding new test cases to enhance the parser's robustness. Additionally, the user implemented a flag to control type inference within the XML and JSON type providers. Further improvements involved performance enhancements when handling CDATA sections and introducing a thread-affine CultureInfo cache for improved DateTime parsing.
csvdatadata-accessfsharpxml
mrange/experiments
Feb 2015 - Jul 2018
Contributions:61 pushes, 2 branches in 3 years 5 months
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