Salary: £40,000 - 70,000 per year Requirements: Strong Go / Golang coding skills Experience in real-time messaging systems Proven track record of taking ownership of high-profile projects Experience designing and implementing scalable solutions for high throughput systems including WebSocket APIs and services Knowledge of queue or stream-based messaging systems (e.g., Amazon SQS, Kafka) Proficient in relational and non-relational databases, preferably PostgreSQL and Redis Highly numerate with strong mathematics knowledge (numerical computations and algorithms) Degree in Computer Science or similar technical discipline Personal interest in traditional financial markets or cryptocurrency Responsibilities: Design and implement high throughput data services Focus on scalability, reliability, and performance of systems Take ownership of projects from inception to deployment Collaborate with data and infrastructure teams Ensure seamless integration and efficient workflows within systems Work on cutting-edge systems handling a million messages per second Manage and improve existing workflows for high-performance data pipelines Technologies: Golang Kafka PostgreSQL Redis API Backend More: We are a global cryptocurrency market data and trade execution technology company located in brand new offices in Central London. Our team is experiencing significant success and growth, managing billions of events per month. As a Lead Software Engineer here, you will be part of an innovative and diverse workplace that encourages continual learning and self-development. We offer a highly competitive salary, a significant bonus, and opportunities to work on cutting-edge systems. We value diversity and are committed to an equal opportunities environment. last updated 8 week of 2026