Szilárd Pfeiffer - Cyber Security Manager at Vodafone Hungary

Szilárd Pfeiffer

Cyber Security Manager at Vodafone Hungary

Budapest, Hungary

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Summary

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Senior

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Top School

Szilárd Pfeiffer is a Cyber Security Manager based in Budapest with 13 years of hands-on experience building and securing complex network and application-level systems. He combines deep low-level development expertise (C/C++, kernel modules) and protocol-level knowledge (TLS, HTTP, SMTP, SSH) with product and team leadership gained as head of software development and security researcher. An open-source enthusiast, he has contributed TLS/SSL work to the dpkt packet library, demonstrating practical cryptographic protocol insight beyond typical managerial duties. Szilárd publishes and presents research for both technical and popular audiences, bridging rigorous security research with accessible communication and product application. Comfortable as a developer, scrum master, and manager, he is known for emphasizing clean code, CI practices, and pragmatic risk assessment in operational environments.

13 years of coding experience

20 years of employment as a software developer

Bachelor of Science - BS Electrical Electronics and Communications Engineering, Bachelor of Science - BS Electrical Electronics and Communications Engineering at Óbuda University

Associate's degree Journalism, Associate's degree Journalism at MÚOSZ Bálint György Újságíró Akadémia

Associate's degree Quality Control Technology/Technician, Associate's degree Quality Control Technology/Technician at Dennis Gabor College

Computer Programming Accounting, Computer Programming Accounting at Bolyai János Közgazdasági Szakközépiskola

English, Hungarian

Github Skills (9)

dpdk10

protocols10

ssl10

tls1210

python10

network-protocol10

tls1310

cryptography10

testing9

Programming languages (12)

TypeScriptShellC++CSSCTeXVueJavaScript

Github contributions (5)

kbandla/dpkt

Jul 2017 - Nov 2017

fast, simple packet creation / parsing, with definitions for the basic TCP/IP protocols

Role in this project:

Back-end Developer

Contributions:10 commits, 5 PRs, 1 comment in 4 months

Contributions summary:Szilárd primarily contributed to the `dpkt` library, focusing on SSL/TLS protocol implementation. They made several code changes, including removing redundant code, storing cipher suite objects, and adding properties to cipher suites. Furthermore, the user updated cipher suite definitions and associated tests, demonstrating a deep understanding of the protocol's intricacies. These contributions suggest a focus on enhancing the library's capabilities in handling cryptographic protocols.

parsingtcp

balabit/libzorpll

Jan 2015 - Jul 2016

Contributions:1 release, 81 pushes, 7 branches in 1 year 5 months

low-level

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