Gabriel Nelle
Senior Backend Developer at cosy.green
Greater Karlsruhe Area Germany
Summary
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Rockstar🎓
Top SchoolGabriel Nelle is a Senior Backend Developer and staff-level engineer with over a decade of professional experience and a 30-year lifelong passion for programming that began with QBasic. He has led teams and architectures from early technical lead roles to staff engineering positions, now balancing hands-on backend work at RealTyme with product leadership as CPO at cosy.green. Gabriel’s practical expertise spans full-stack web systems, deployment workflows, and developer organization, refined by building a large web platform from scratch and hiring distributed freelancers. He is an active open-source contributor in the Go ecosystem—improving Exercism tracks and enhancing the cross-platform Fyne GUI toolkit—demonstrating both attention to developer experience and UI/UX details. Based in the Greater Karlsruhe area, he pairs academic training in mathematics and Germanistics with a pragmatic, test-driven approach to designing reliable systems.
11 years of coding experience
8 years of employment as a software developer
Staatsexamen Sek I/II Mathematik Germanistik, Staatsexamen Sek I/II Mathematik Germanistik at Universität Siegen
German, English
Stackoverflow
7,182reputation
426kreached
236answers
2questions
go
top-1%
json
top-5%
dictionary
top-5%
Github Skills (30)
testing10
cross-platform10
tracks10
toolkits10
go10
front-end-development10
golang10
data-structure9
software-design9
ios9
algorithm9
json9
algorithms9
android9
dictionary9
Programming languages (16)
Github contributions (5)
exercism/go
Nov 2018 - Sep 2020
Exercism exercises in Go.
Role in this project:
Backend Developer
Backend DeveloperContributions:27 reviews, 22 commits, 26 PRs in 1 year 10 months
Contributions summary:Gabriel contributed to the Exercism Go track, primarily focused on fixing errors, adding test cases, and refactoring concept exercises. Their work includes correcting errors in exercise packages to comply with `golint`, adding a test case for the `luhn` exercise to validate input, and improving the `zero-value` concept exercise. The user also revamped the `strings` concept exercise and created a new `structs` and `methods` exercise.
golangexercismexercism-exercisesexercism-trackcommunity-contributions-paused
exercism/v3
Jan 2020 - Sep 2020
The work-in-progress project for developing v3 tracks
Role in this project:Backend Developer
Backend DeveloperContributions:19 reviews, 50 commits, 99 PRs in 8 months
Contributions summary:Gabriel's primary contributions involved developing and refactoring Go code within the exercism/v3 repository. They focused on implementing and improving concept exercises, specifically for the "strings," "slices," "basics," "conditionals," and "structs" concepts. Their work included writing tests, modifying code, adding exercise instructions and documentation, and restructuring exercises. The user also added configuration files and performed code formatting.
in-progresstracksdevelopingwork-in-progress
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