Matei Josephs
Director General at KPMG Romania
Bucharest Metropolitan Area Romania
Summary
🤩
Rockstar🎓
Top SchoolMatei Josephs is a pragmatic offensive security leader and entrepreneur with seven years of hands-on experience in penetration testing, reverse engineering, and adversary simulation, who currently runs both HiveHack and Concept Electronics. He blends deep technical proficiency—evidenced by certifications like OSWE/OSCP and responsible disclosure of 10 CVEs—with people leadership, having built and managed security teams, CSIRT and DevSecOps functions at scale. Matei’s background spans fast-moving startups and legacy businesses, plus advisory and teaching roles (visiting lecturer), which gives him a rare socio-technical perspective on security, people and process. He contributes to open-source quality efforts (lint fixes in the MultiversX Go client) and speaks regularly at DEF CON, NoHat and DefCamp, translating research into practical defenses and training. Known for a curious, childlike "why?" that drives creative problem-solving, he equally values clear communication and measurable risk reduction.
7 years of coding experience
1 year of employment as a software developer
Master of Science - MS, Cybercrime and Intelligence, Distinction, Master of Science - MS, Cybercrime and Intelligence, Distinction at University of PortsmouthColegiul National de Informatica "Tudor Vianu"
Romanian, English
Github Skills (4)
golang10
blockchain10
software-quality10
go10
Programming languages (9)
Github contributions (5)
multiversx/mx-chain-go
Jan 2021 - Oct 2021
⚡ The official implementation of the MultiversX blockchain protocol, written in golang.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:71 reviews, 100 commits, 14 PRs in 8 months
Contributions summary:Matei primarily focused on addressing linter issues within the codebase. They modified the `process/smartContract/process.go` file to address linting problems. This indicates a focus on code quality and adherence to coding standards, likely related to the core functionalities of the MultiversX blockchain protocol, which the repository implements.
golangp2pblockchainblockchain-protocoldecentralized
mateigraura/shorty
Jul 2020 - May 2022
Url shortener using MERN stack
Contributions:33 commits, 23 PRs, 31 pushes in 1 year 10 months
reactshortenerexpressjsexpressmern
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.