C Developer | Trading Firm | Remote

C Developer (High-Performance / Low-Latency Systems)

Proprietary Trading Firm - Remote

Our client are a small, focused, and exceptionally competitive proprietary trading firm specialising in high performance on-chain trading. Their edge lies in deep, hands-on engineering-ranging from networking optimisation's to advanced data pipelines-where performance truly matters.

Their Mission: To dominate on-chain markets through superior technology, aggressive innovation, and a relentless drive for efficiency. They believe in leveraging every competitive advantage possible, from complex HPC solutions to optimising lower-level code in C, Rust, and Python.

Role Overview: You will lead or contribute to their efforts in extending and optimising high performance C based solutions that power critical parts of their on-chain trading infrastructure. Beyond core systems, you will build and maintain C extensions to optimise essential Python and Rust modules. This role is ideal for someone who enjoys pushing hardware and network protocols to their absolute limits - finance experience is NOT required!

Key Responsibilities

• Extend & Optimise: Enhance existing C-based components for better performance, reliability, and new feature integration.
• Integrate & Interoperate: Build and maintain C extensions that interface with Python and Rust, ensuring seamless performance across languages.
• Performance Monitoring: Profile and benchmark code in live trading environments; propose and implement micro-optimisations.
• Collaboration: Work with Rust/Python developers and quants to align improvements with business and performance goals.

Required Skills & Experience

• Expert-level proficiency in C programming (memory management, concurrency, low-level optimisations)
• Proven track record building C extensions for Python or Rust
• Familiarity with network protocols (QUIC, UDP, TCP/IP) and HPC concepts
• Comfort with Linux systems internals and performance tuning

Nice to Have

• Experience with real-time distributed systems or HPC
• Familiarity with cryptographic libraries or blockchain protocols
• Track record contributing to open-source or specialised performance projects

Benefits:

• High Impact & Ownership: In a small team, every line of code and every idea can translate directly into tangible market performance.
• Cutting-Edge Technology: We explore advanced concepts in systems programming, data processing, HPC, and decentralized technologies.
• Competitive Rewards: We operate on a profit-sharing model where impactful contributions translate into substantial upside.
• Remote-First Culture: Our team is global, with members across Europe, Australia, North America, and Asia. We embrace remote collaboration.
• Financial Security: We maintain a strong runway (targeting at least two years) to ensure a stable environment while exploring new strategies and maintaining existing ones.

Apply Now!