Ionut Popescu
Senior DevOps Engineer at LSEG (London Stock Exchange Group)
Bucharest, Romania
Summary
🤩
Rockstar🎓
Top SchoolIonut Popescu is a Senior DevOps Engineer with 10+ years of experience designing, automating and operating resilient infrastructure across banks and cloud providers from Bucharest. He combines deep systems and database knowledge (Postgres, Oracle, DB2, SQL Server) with hands-on cloud and IaC expertise in AWS, GCP, Terraform, Packer and GitLab/GitHub CI to keep large-scale services highly available. His background spans container orchestration (ECS, Kubernetes, OpenShift), monitoring (Datadog, Prometheus, Dynatrace) and enterprise middleware, enabling smooth migrations and production troubleshooting. Equally comfortable writing Bash/KSH scripts or low-level C/assembly, he contributes security-focused tooling on GitHub—authoring reflective loaders and shellcode utilities that reflect a rare blend of DevOps and offensive-research skills. Trained in electrical engineering and advanced measurement systems, he pairs analytical rigor with practical automation to reduce toil and improve operational reliability.
10 years of coding experience
5 years of employment as a software developer
Master’s Degree, Advanced measuring tools and systems, Master’s Degree, Advanced measuring tools and systems at Polytechnic University of Bucharest, Faculty of Electrical EngineeringEngineer’s Degree, Applied Automatics and Informatics, Engineer’s Degree, Applied Automatics and Informatics at “Constantin Brancusi” University of Targu-Jiu, Faculty of Engineering
English, French
Github Skills (21)
shellcode10
hook10
assembly10
c-language10
ssl10
tls1210
pcap10
tls1310
network-security10
cprogramming-language10
dll-injection10
winapi9
wp-api9
ws-api9
ssh9
Programming languages (4)
Github contributions (5)
NytroRST/NetRipper
Jul 2015 - Jun 2022
NetRipper - Smart traffic sniffing for penetration testers
Role in this project:
Security Engineer
Security EngineerContributions:1 review, 76 commits, 5 PRs in 7 years
Contributions summary:Ionut's primary contribution involves implementing a reflective DLL loader and integrating it with a packet capture library. They added features to intercept and log network traffic, specifically focusing on SSL/TLS and SSH protocols. The code changes include the implementation of hooks for various functions (like `PR_Write`, `SSL_Read`, `SSL_Write`, `send`, and `recv`), and also adding support for SecureCRT and Chrome, to capture potentially sensitive information. The user also expanded support for PCAP file generation, indicating an interest in network security and data analysis.
sniffingwindowstesterspenetrationcybersecurity
NytroRST/ShellcodeCompiler
Oct 2016 - Aug 2019
Shellcode Compiler
Role in this project:Back-end Developer
Back-end DeveloperContributions:1 review, 23 commits, 2 PRs in 2 years 9 months
Contributions summary:Ionut appears to be the primary developer of this shellcode compiler project. Their contributions focus on the core functionality, including defining special characters, structs for state management, and functions for adding declared functions and parameters. The user implemented command-line argument parsing and incorporated the Keystone engine for assembling the generated assembly code, indicating a focus on shellcode generation and compilation. Further development was also undertaken to include support for both Windows (x86 and x64) and Linux platforms.
compilershellcodeassemblygcc
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