Sergiu Costea
Software Engineer at Google
Zurich, Zurich, Switzerland
Summary
👤
Senior🎓
Top SchoolSergiu Costea is a systems-focused software engineer with 12 years of experience, specializing in network protocols, distributed control planes, and systems security. Based in Zurich, he holds a PhD in Computer Science and has blended academic research with production engineering through roles at Anapaya Systems and currently Google. He has led design and implementation of SCION control-plane components and SDN applications, contributing notable Go implementations such as a ReliableSocket protocol and a SCIOND Go API that improved SCMP handling and context-aware client behavior. Comfortable in both hands-on development and people-focused engineering management, he has experience in hiring, cross-team coordination, and technical leadership. Colleagues know him for tackling hard network-security research topics and turning them into robust, auditable network software.
12 years of coding experience
4 years of employment as a software developer
Master’s Degree, Computer Networks Security, Master’s Degree, Computer Networks Security at University Politehnica of Bucharest - Faculty of Automatic Control and Computer SciencePOLITEHNICA București National University for Science and Technology
Github Skills (7)
go10
network-programming10
api-design10
tcp9
context-api9
ip9
context-manager9
Programming languages (3)
Github contributions (5)
scionproto/scion
May 2017 - Jun 2021
SCION Internet Architecture
Role in this project:
Back-end Developer
Back-end DeveloperContributions:26 reviews, 274 commits, 533 PRs in 4 years 1 month
Contributions summary:Sergiu implemented the Go implementation of the ReliableSocket protocol and contributed to the creation of a Go API for SCIOND. They also added support for receiving SCMP error messages. Furthermore, the user made several improvements to the code, including the addition of checksums in Go, improved support for message reads and writes, and implemented context-aware code for the SCIOND client API.
architecturescioninternet
scrye/scion
Apr 2017 - Feb 2019
SCION Internet Architecture
Contributions:1282 pushes, 383 branches in 1 year 10 months
architecturescioninternet
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