Sevki Kocadag
Co-founder & CEO at Vignetim
Amsterdam, North Holland, Netherlands
Summary
🤩
Rockstar🎓
Top SchoolSevki Kocadag is a tech entrepreneur and hands-on engineering leader with 13 years of experience building embedded, cloud and travel-tech systems. As Co-founder and CEO of Vignetim he is driving digital road mobility—delivering vignettes, toll management, eSIM and AI-driven travel features while scaling partnerships and fintech integrations across markets. He combines startup product instincts with deep systems experience from roles at Juniper, Turkish Aerospace and Havelsan, where he shipped embedded control-plane and flight-simulator software in safety-critical environments. A pragmatic coder and release manager, he has improved test frameworks and fixed core bugs in prominent open-source projects like google/go-jsonnet, reflecting a focus on quality and automation. Sevki’s background in C/C++ systems, cloud-native tooling and AI-enabled UX lets him bridge low-level engineering with product and business strategy. Based in Amsterdam with an MS in Information Systems, he actively seeks partnerships, investments and collaborators to simplify cross-border road travel.
13 years of coding experience
12 years of employment as a software developer
Master of Science - MS Information Systems (I), Master of Science - MS Information Systems (I) at Orta Doğu Teknik Üniversitesi / Middle East Technical University
English, Turkish
Stackoverflow
3,642reputation
306kreached
35answers
28questions
Github Skills (14)
go10
test-automation10
testing10
file-access9
fileio9
error-handling9
file-processing9
file-handling9
asp-net6
exchange-web-services6
opc6
asp-net-mvc6
ewsmanagedapi6
exchange-server6
Programming languages (18)
Github contributions (5)
google/go-jsonnet
Aug 2017 - Aug 2017
Role in this project:
Backend Developer & QA Engineer/Test Automation Engineer
Backend Developer & QA Engineer/Test Automation EngineerContributions:5 commits, 2 PRs, 6 comments in 2 days
Contributions summary:Sevki primarily focused on improving the testing framework of the project. They implemented `t.Run` for tests, refactored the test structure to align with standard library practices utilizing file-based golden tests, and removed unused fields. They also addressed a potential bug in the core application code, initializing a required map to prevent a panic. These changes indicate a focus on improving code quality and testability within the project.
sevki/kernel
Mar 2024 - Mar 2024
okLinux. It's aight.
Contributions:1 release, 37 PRs, 89 pushes in 1 day
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