Oskar Gewalli
Software Engineer at Freelance
Thessaloniki, Macedonia and Thrace, Greece
Summary
👤
Senior🎓
Top SchoolOskar Gewalli is a pragmatic senior software engineer with 15+ years of experience building and stabilizing backend and frontend systems across startups and enterprise clients, currently freelancing from Thessaloniki. He thrives in collaborative teams, combining hands-on coding, architecture, coaching and product-aligned delivery—having led microservices, Kubernetes migrations and React frontend proofs-of-concept. A long-term contributor to the F# ecosystem, he has improved core libraries and modernized projects (including migration to .NET Core and enhancements to the Result type), demonstrating deep functional-programming expertise behind the scenes. Comfortable switching languages to fit the team, he focuses on reliability, test automation and pragmatic engineering rather than tooling dogma. Colleagues know him as a steady problem-solver who balances technical clarity with mentorship and documentation.
15 years of coding experience
19 years of employment as a software developer
University Diploma 120 higher education credits Mathematics, University Diploma 120 higher education credits Mathematics at Lund University
English, Swedish, Danish
Stackoverflow
1reputation
0reached
1answer
0questions
Github Skills (37)
unit-testing10
apidoc10
multithreading10
net10
dotnet10
swagger10
asp-net-core10
filesystemwatcher10
faker10
fakerjs10
asp-net10
api10
thread10
hyper-threading10
build-automation10
Programming languages (28)
Github contributions (5)
fsprojects/FSharpPlus
Nov 2017 - Dec 2022
Extensions for F#
Role in this project:
Back-end Developer
Back-end DeveloperContributions:36 releases, 129 reviews, 368 commits in 5 years 1 month
Contributions summary:Oskar primarily focused on migrating the project to a .NET Core type of project and target frameworks, netstandard1.3 and net40. The commits show the modification of project files, including .csproj files, indicating a move towards a more modern .NET development approach. Additional commits include resolving compiler errors and updating build scripts and related documentation.
discriminated-unionsincrementalarrow-functionsfsharpmonad-transformers
fsprojects/FSharpx.Extras
Aug 2015 - Dec 2019
Functional programming and other utilities from the original "fsharpx" project
Role in this project:Back-end Developer
Back-end DeveloperContributions:7 commits, 5 PRs, 14 comments in 4 years 4 months
Contributions summary:Oskar primarily contributed to the FSharpx.Extras project by implementing and testing utility functions related to enums and results. They added new methods for parsing and handling enums in F# and C# with corresponding unit tests. The user also added CE builder and tests of CE to the codebase. The contributions demonstrate a focus on enhancing the functional programming capabilities of the library.
functional-programmingfsharpmonad-transformersf-sharplenses
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