George Vagenas
Lead Cloud Engineer at 1NCE
Limassol, Cyprus
Summary
👤
Senior🎓
Top SchoolGeorge Vagenas is a Lead Cloud Engineer with 15 years of experience designing and delivering resilient cloud-native systems, currently leading IoT SIM management and connectivity services at 1NCE from Limassol, Cyprus. He blends hands-on backend development in Go and TypeScript with AWS infrastructure-as-code (Terraform, CDK) and CI/CD automation to drive secure, observable, and reliable platform delivery. A longtime telecom and VoIP specialist, he has deep roots in SIP/IMS and CPaaS—contributing bug fixes, protocol handling improvements, and tests to well-known open-source projects such as RestComm and sip-servlets. George pairs technical leadership and mentorship with product-facing responsibilities, architecting SM-SR ES4 integrations and automated OTA SIM provisioning across multiple vendors. He is as comfortable authoring APIs and cloud architectures as he is digging into call-flow logic and protocol edge cases, a detail-oriented habit visible in his open-source fixes for call handling and custom headers. That combination of telecom protocol expertise, cloud engineering at scale, and a track record of improving test automation and deployment reliability makes him a pragmatic leader for complex connectivity platforms.
15 years of coding experience
16 years of employment as a software developer
Business Information Technology, Business Information Technology at The American College of GreeceCCNA Networking, CCNA Networking at Cisco Networking Academy
Stackoverflow
11reputation
6kreached
1answer
0questions
Github Skills (15)
debugging10
json10
javas10
debug10
rest-api10
api-rest10
arq10
sips10
api-design10
java10
restful-api10
sip10
testing9
tomcat8
advanced-custom-fields6
Programming languages (8)
Github contributions (5)
RestComm/sip-servlets
Apr 2012 - May 2018
Leading SIP - IMS - WebRTC Application Server
Role in this project:
Back-end Developer
Back-end DeveloperContributions:41 commits, 1 PR, 2 pushes in 6 years 1 month
Contributions summary:George primarily contributed to bug fixes and updates within the `restcomm/sip-servlets` repository. These changes included addressing specific issues related to SIP servlet functionality, such as handling provisional responses, success responses, and request processing. The contributions also involved updating dependencies and tests related to the `sip-servlets-arquillian-testsuite` project. The user also added tests for Allow-Events & Privacy headers in the test suite.
kamailiofreeswitchwebtransportwebrtcwebsocket
RestComm/Restcomm-Connect
May 2012 - Jan 2019
The Open Source Cloud Communications Platform
Role in this project:Back-end Developer
Back-end DeveloperContributions:17 releases, 5639 commits, 260 PRs in 6 years 8 months
Contributions summary:George primarily contributed to bug fixes and the improvement of the ExtensionsConfiguration REST API and the correct handling of Call scenarios. The commits included changes to the code in order to adjust JSON responses, properly clean up outgoing calls to remove BUSY and CANCELED and to deal with calls that are not active, indicating a focus on call logic and the REST API integration. The user also contributed fixes and enhancements regarding custom headers.
cloud-communications-platformfreeswitchcommunicationscommunicationcloud
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