About OctoHorizon
OctoHorizon is an independent high-frequency trading (HFT) firm focused on developing advanced algorithmic strategies for digital asset markets. Our approach combines rigorous quantitative research with low-latency engineering to identify and capture short-lived market inefficiencies.
We are a globally distributed, fully remote team built on principles of autonomy, technical excellence, and continuous iteration. Engineers at OctoHorizon work at the intersection of performance, infrastructure, and algorithmic trading — with direct and measurable impact on production systems and trading results.
Role Overview
We are seeking an exceptional C++ Software Engineer to design and implement high-performance systems that underpin our trading infrastructure. In this role, you will be responsible for building and optimizing real-time systems that handle market data, order execution, and strategy deployment with minimal latency and maximum reliability.
This is a hands-on engineering role with end-to-end ownership of critical components in a live trading environment. The ideal candidate has deep expertise in modern C++ and a strong understanding of system-level performance.
Responsibilities
- Design, develop, and maintain high-performance, low-latency trading systems in C++.
- Implement core infrastructure for market data ingestion, order routing, risk checks, and strategy execution.
- Profile, benchmark, and optimize code to meet stringent latency and throughput requirements.
- Collaborate with quantitative researchers and infrastructure engineers to support deployment of real-time strategies.
- Build robust, fault-tolerant systems capable of operating reliably under varying market conditions.
- Maintain clean, well-tested code and contribute to architectural decisions across the stack.
- Take full ownership of components from design through production support.
Minimum Qualifications
- 3+ years of professional software engineering experience, with a focus on performance-critical systems.
- Expert-level proficiency in modern C++ (C++17 or newer), including templates, memory management, and concurrency.
- Strong understanding of systems programming concepts (CPU architecture, networking, threading, I/O, etc.).
- Experience with Linux systems development, including debugging and performance tuning tools.
- Demonstrated ability to write clean, efficient, and maintainable code in production environments.
- Strong problem-solving skills and attention to detail.
- Comfortable working independently in a fast-paced, fully remote team environment.
Preferred Qualifications
- Prior experience in high-frequency trading, low-latency systems, or real-time financial infrastructure.
- Experience implementing market data handlers, matching engines, or order gateways.
- Familiarity with exchange protocols (FIX, WebSocket, REST) and crypto-native APIs.
- Background in mathematics, physics, computer science, or a related technical field.
- Experience with performance benchmarking and micro-optimization at the hardware level (e.g., cache-aware design, CPU pinning, instruction pipelining).
What We Offer
- Fully remote role – work from anywhere with a reliable internet connection.
- High-impact engineering – direct influence on production trading and strategy performance.
- Flat team structure – rapid decision-making, no bureaucracy.
- Access to cutting-edge infrastructure – hardware, datasets, and profiling tools.
- Competitive compensation – including base salary and performance-based bonuses.
- Engineering autonomy – full ownership of systems and architectural direction.