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 general trading platform.

This is a backend, systems-focused role centred around performance-critical engineering — building the infrastructure that enables fast, reliable, and secure 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

📌 Senior Software Engineer - £180,000 A Year - Remote (Castilla y León)
🏢 Understanding Recruitment
📍 Castilla y León