04 // Firm
An engineering firm that trades.
99 Capital exists to bring scientific discipline to electronic markets. We trade systematically on infrastructure we build ourselves, and we hold that infrastructure to the standard we would demand of any counterparty.
Mission
To provide deterministic, transparent and resilient liquidity — and to make the systems that do it available to the institutions we work with.
Build, then trust
We own every layer we depend on, from the queue to the control plane.
Measure, then claim
Nothing ships without a reproducible measurement behind it.
Small teams, full ownership
The engineer who builds a system runs it in production.
Leadership
Founder & Chief Executive
Profile forthcoming
Head of Technology
Profile forthcoming
Head of Trading
Profile forthcoming
Head of Risk
Profile forthcoming
Careers
Accepting interestWe hire engineers and researchers who want to own hard systems end to end. There are no open listings yet; we read every note.
- Low-latency C++
- Distributed systems
- Market microstructure
- Quantitative research
- Site reliability
- Interface engineering