Kostas Zorbadelos
Senior Network Tools Developer at NTT DATA, Inc.
Paris, Ile-de-France
Summary
👤
Senior🎓
Top SchoolKostas Zorbadelos is a Senior Network Tools Developer with nine years of professional experience and a long track record in ISP and core Internet infrastructure roles, currently working on NTT's GIN network tooling. He specializes in network programmability, telemetry, traffic engineering and capacity planning, blending IETF-style network modeling with practical automation for large-scale IP/MPLS and data center networks. Previously he led network architecture at Canal+ Telecom and drove major IP services and deployments at OTE, giving him hands-on expertise from undersea transport to anycast DNS and IPv6 rollouts. An advocate of open source and open Internet principles, he contributes to operator communities as a GRNOG board member and teaches network topics, bringing both operational rigor and a scientist’s curiosity to tooling and measurement challenges. A less obvious strength is his cross-disciplinary depth—he pairs low-level UNIX/C experience and secure programming with higher-level network modeling and capacity strategy.
9 years of coding experience
25 years of employment as a software developer
MSc Advanced Information Systems, MSc Advanced Information Systems at Ethnikon kai Kapodistriakon Panepistimion Athinon
greek (native speaker), english (c2, cambridge proficiency), français (b1)
Stackoverflow
11reputation
315reached
1answer
0questions
Github Skills (82)
python10
infrastructure10
infrastructure-management10
netmiko9
package-repository9
scale9
event-stream9
cisco9
abstraction9
automation9
resolver9
remote-execution9
napalm9
docker9
zeromq9
Programming languages (7)
Github contributions (5)
kzorba/bgp-te-tool
May 2022 - Feb 2023
Contributions:19 commits, 8 pushes, 1 branch in 9 months
kzorba/test-repo
Oct 2022 - Sep 2023
Contributions:2 PRs, 10 pushes, 2 branches in 11 months
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