Roy Schuster
Software Engineer at Next DLP
United Kingdom
Summary
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RockstarRoy Schuster is a seasoned software engineer with 10 years of experience building high-performance, security-focused systems across companies from Microsoft and Spotify to startups like Next DLP. His background spans low-level and kernel development, confidential computing, and endpoint/anti-fraud products, with deep C/C++ expertise and hands-on work in secure enclaves and OS internals. He contributes to notable open-source projects such as Microsoft’s snmalloc allocator and the Confidential Consortium Framework (CCF), where he implemented core allocator features and secure RPC/node attestation capabilities. Comfortable in both research and production environments, he combines rigorous reverse-engineering and threat-mitigation experience with scalable backend design. Colleagues rely on him for shrinking attack surfaces while keeping performance high—an engineer who bridges security research and practical systems engineering.
9 years of coding experience
15 years of employment as a software developer
Github Skills (27)
c-language10
distributed-ledger-technology10
it-security10
security10
distributed-ledger10
cryptography10
cprogramming-language10
allocator10
testing9
tls129
tls139
rpc9
mtls9
libtls9
lua8
Programming languages (2)
Github contributions (5)
microsoft/CCF
May 2019 - Jul 2019
Confidential Consortium Framework
Role in this project:
Backend Developer & Security Engineer
Backend Developer & Security EngineerContributions:13 commits, 23 PRs, 104 pushes in 2 months
Contributions summary:Roy's contributions center around enhancing the security and functionality of the Confidential Consortium Framework (CCF). Their work includes implementing RPC support for adding nodes, which involves integrating node certificates and verifying quote data for secure enclave measurements. They also focused on the core ledger functionality, storing and verifying signed vote requests, enforcing signature requirements, and incorporating entropy detection for improved security during runtime. Furthermore, they contributed to the testing framework by adding APIs for proposal and voting mechanisms.
cppconfidentialityjavascriptframeworkintegrity
microsoft/snmalloc
Apr 2019 - Apr 2019
Message passing based allocator
Role in this project:Back-end Developer
Back-end DeveloperContributions:7 commits, 2 PRs, 3 pushes in 3 days
Contributions summary:Roy primarily contributed to defining and implementing core functionalities of the snmalloc project. Their work focused on creating new modules, specifically pal_consts.h, and modifying existing files such as allocconfig.h and malloc.cc. The user also introduced features like exporting global pagemaps and reserve functions to support shared allocators. Additionally, they updated build configurations for testing.
memory-allocatorrustmessage-passingallocatormalloc
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