David De Rosier
Senior Rust Engineer In E-trading at Onyx Capital Group
London, England, United Kingdom
Summary
👤
Senior🎓
Top SchoolDavid De Rosier is a Senior Rust Engineer and engineering lead with 15 years of hands-on experience delivering high-performance trading systems, HFT platforms, and complex cloud integrations across startups, financial institutions, and big tech. He blends solution architecture and product delivery skills gained as a Lead Software Architect at J.P. Morgan and Director of Technology at JSGeeks, with current focus on e-trading at Onyx Capital Group. Known for pragmatic, hands-on leadership and mentoring, he consistently drives cross-functional collaboration to turn demanding latency and reliability requirements into production-ready systems. David’s background spans both technical depth in systems engineering and strategic orchestration of cloud-based platforms, enabling rapid, auditable delivery in regulated environments. Based in London, he pairs an MSc in Computer Science with a track record of moving ideas from prototype to production while fostering engineering excellence. A quieter differentiator: he repeatedly succeeds in bridging legacy financial stacks and modern Rust-based architectures to accelerate modernization with minimal disruption.
14 years of coding experience
9 years of employment as a software developer
Master of Science - MS Computer Science, Master of Science - MS Computer Science at West Pomeranian University of Technology in Szczecin
Github Skills (21)
command-line-tool8
diagnostics8
plugin8
tree8
fuzzy-search7
linux7
command-line7
breeze7
neovim6
rust6
neovim-plugin6
cli6
operating-system5
source-code-analysis5
lua5
Programming languages (5)
Github contributions (5)
ddrcode/riscv-os
Jan 2025 - Feb 2025
An attempt to create a tiny OS in RISC-V assembly (32-bit)
Contributions:1 release, 67 PRs, 169 pushes in 1 month
baremetaloperating-systemrisc-vrisc-v-assembly
ddrcode/c64rust
Sep 2023 - Jan 2024
MOS6502 and C64 Emulators written in Rust
Contributions:13 PRs, 64 pushes, 18 branches in 3 months
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