Pavel Tsakalidis
Head Of Application Security
England, United Kingdom
Summary
🤩
Rockstar🎓
Top SchoolPavel Tsakalidis is a Head of Application Security with 12 years of experience leading AppSec and security engineering across financial technology and consulting environments. Based in the UK, he progressed from hands-on web and software engineering into senior security roles at Context Information Security and Accenture before taking leadership positions at Addepar. He combines practical offensive tooling experience—authoring a DLL/COM hijacking toolkit that automates proxy DLL generation using Ghidra—with strategic delivery and programme management for large clients. Pavel is comfortable bridging low-level reverse engineering and developer-focused security controls, enabling secure software delivery at scale. His background in server, database and e-learning platforms gives him a pragmatic appreciation for legacy system risks often overlooked in modern appsec programs.
12 years of coding experience
16 years of employment as a software developer
Bachelor (Hons) Degree, Computer Science, Bachelor (Hons) Degree, Computer Science at University of Lancashire
Github Skills (9)
ghidra10
ws-api10
csharp10
winapi10
wp-api10
dotnet-core10
visual-studio9
cprogramming-language9
c-language9
Programming languages (7)
Github contributions (5)
Accenture/Spartacus
Oct 2022 - Mar 2023
Spartacus DLL/COM Hijacking Toolkit
Role in this project:
Security Engineer
Security EngineerContributions:11 releases, 8 commits, 2 PRs in 4 months
Contributions summary:Pavel primarily contributed to the development of a DLL/COM Hijacking Toolkit. Their work focused on generating proxy DLLs for existing export functions, including the implementation of a proxy function generator utilizing Ghidra for function signature analysis and the generation of necessary project files (vcxproj, rc). Further contributions included bumping the version, documenting the command-line options, and replicating the version information from the original target DLL to the generated proxy DLL.
spartacusdll-injectiondll-hijackingdiscoveryhijacking
Accenture/Codecepticon
Sep 2022 - Jan 2023
.NET/PowerShell/VBA Offensive Security Obfuscator
Contributions:19 commits, 13 pushes, 1 branch in 4 months
powershellantivirus-evasionobfuscationcsharpvba
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