Senior Software Engineer

Senior Software Engineer (C++)

📍 Remote (Spain)

🏦 High-Performance Trading Systems

💰 Up to £180k + bonus + equity

We’re hiring a Senior C++ Engineer to work on the systems that sit at the heart of a global trading platform. This is a backend, systems-focused role centred around performance-critical engineering — building the infrastructure that enables fast, reliable, and secure execution at scale.

🚀 The Role

You’ll be working on the core framework and performance-critical components that underpin the trading engine.

Your responsibilities will include:

• Designing and building low-level systems that support high-frequency transaction processing
• Developing robust, reusable components used across the trading platform
• Engineering for low latency, high throughput, and system resilience
• Working on concurrent and distributed systems operating under real production load
• Identifying and resolving bottlenecks across CPU, memory, and network layers
• Writing efficient, maintainable, and well-tested C++ code
• Partnering with cross-functional teams to deliver scalable technical solutions

🧠 What They’re Looking For

• Strong experience building production systems in C++
• Background working on high-performance, low-latency, or high-throughput systems
• Solid understanding of multithreading, concurrency, and memory management
• Experience working in Linux-based environments
• Familiarity with distributed systems or large-scale architectures
• Experience with performance tuning and profiling at system level
• Exposure to other languages (e.g. Python, Java, SQL) is beneficial
• Interest in trading systems, financial infrastructure, or market mechanics is a plus
• Comfortable operating in a fast-paced, delivery-focused environment

🌍 Why This Role

• Strong comp (including bonus & equity)
• Opportunity to solve complex, performance-driven engineering problems
• High ownership culture
• Remote-first setup with a globally distributed team