Senior C#/.NET Developer

We are looking for a Senior C#/.NET Developer to join an investment fund that leverages advanced algorithms for cryptocurrency trading.

Responsibilities

• Design and develop a high-performance trading platform with low-latency requirements.
• Implement market data integration and processing via FIX/FAST/REST/WebSocket protocols:
• Build and aggregate quote streams, consolidate order books.
• Optimize incoming data processing (low-level parsing, buffering, zero-copy, minimizing allocations).
• Develop and enhance market-making and order execution algorithms, including options market-making strategies.
• Optimize algorithms using SIMD, low-level optimization, and profiling.
• Optimize networking and socket handling (latency minimization, efficient I/O model usage).
• Write zero-allocation C# code, analyze and eliminate GC overhead.
• Develop C# interoperability with native libraries.
• Participate in technical design: choosing architectural solutions for high-performance and scalable systems.
• Monitor system performance and stability, identify bottlenecks, and resolve them.
• Participate in testing (unit/integration), load testing, and write automated tests for key components.

Requirements

• Proficiency in Russian (C2 level).
• Excellent command of C# (.NET 7+).
• Experience with interop development.
• Deep understanding of multithreading: memory models, synchronization, lock-free techniques, concurrent collections.
• Proven ability to write zero-allocation C# code: identifying/eliminating allocations, understanding CLR/GC internals.
• Strong knowledge of trading system protocols (FIX, FAST, WebSocket, TCP, UDP, etc.).
• Broad expertise in high-performance architectures: designing low-latency, distributed, and scalable systems.
• Hands-on experience with latency optimization: profiling, hot-spot analysis, bottleneck elimination.
• Experience in HFT projects.
• Experience developing options market-making strategies, with understanding of options markets and risks.
• Knowledge of matching engine principles, order handling mechanics, and order book dynamics.
• Proficiency with profiling tools (dotTrace, PerfView, native code profiling, etc.).
• Experience with monitoring and logging systems (latency and performance metrics collection).
• Strong self-organization and ability to work remotely: independent task planning and reporting.

Conditions

• Work format: fully remote, with occasional business trips to countries with favorable climates (covered fully or partially by the company, negotiable).
• Team: friendly and professional, combining experienced developers and quant analysts. Regular technical meetings, knowledge sharing, and code reviews.
• Tasks: intellectually challenging, focused on building and optimizing low-latency trading systems, exploring new approaches and technologies.

Job Type: Full-time