Remote C++ Software Engineer - High-Frequency Trading

About the Role

We are looking for a talented Remote C++ Software Engineer to join our team at OctoHorizon, an independent high-frequency trading (HFT) firm. In this role, you will design and implement high-performance systems that are crucial to our trading infrastructure. As a Remote C++ Software Engineer, you will work at the intersection of performance, infrastructure, and algorithmic trading, making a direct impact on our production systems and trading results.

What You'll Do

• 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 the 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.

Requirements

• 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.

Nice to Have

• 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.

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