James Cape
Staff Engineer at Clear Street
New York, New York, United States
Summary
🤩
Rockstar🎓
Top SchoolJames Cape is a Staff Engineer based in New York with a decade of experience building low-latency, security-focused systems across finance and privacy-preserving crypto projects. He specializes in Rust today but brings deep history in C++, Java, network engineering, and systems work on both Linux and Windows, often optimizing for performance and determinism. At MobileCoin he implemented cryptographic primitives and low-level security optimizations—work that touched SGX integration, BIP-39 key derivation, and a patched AES-GCM for better performance. His background spans hands-on engineering, team leadership, procurement and budgeting, giving him a rare combination of technical depth and operational fluency. Now at Clear Street he applies that expertise to resilient back-end and security challenges in financial infrastructure. Colleagues know him for quietly solving hard system-level problems that others defer around.
10 years of coding experience
19 years of employment as a software developer
Northern Illinois University
Stackoverflow
704reputation
721kreached
14answers
1question
Github Skills (17)
sgx10
it-security10
security10
cryptography10
rust10
optmization9
optimisation9
aes-gcm9
x5098
custom-protocol6
php6
geolocation6
ip6
linux6
python6
Programming languages (9)
Github contributions (5)
mobilecoinfoundation/mobilecoin
Apr 2020 - Jan 2023
Private payments for mobile devices.
Role in this project:
Back-end & Security Engineer
Back-end & Security EngineerContributions:3 releases, 1069 reviews, 177 commits in 2 years 9 months
Contributions summary:James focused on low-level system and security improvements within the MobileCoin project. Their contributions involved implementing cryptographic primitives, particularly related to the fog signature scheme and BIP-39 key derivation, and ensuring their integration with existing codebase. They also worked on low-level optimizations, such as using a patched AES-GCM implementation. The user also worked on updating the project to support the latest SGX version.
paymentsandroidmobilepaymentxrp
mobilecoinfoundation/oblivious-aes-gcm
Jun 2021 - Dec 2022
Oblivious AES-GCM Decryption
Contributions:3 reviews, 8 PRs, 8 pushes in 1 year 5 months
cryptographyaesaes-gcmgcmencryption
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