Full-Stack Trading Engineer - (Execution Technology)

Selby Jennings; City Of London; On-site; GBP 90,000 - 120,000; Full time

Job summary

Selby Jennings is hiring a software engineer to design and enhance trading platforms. The role covers front-end work with React and TypeScript as well as backend services in Java, supporting order routing and execution workflows across a global platform.

You will collaborate with quantitative research, execution and trading teams to deliver new functionality and scale the platform across regions. A strong emphasis on AI-assisted development and code quality is expected.

Qualifications

• 4-6 years of software engineering experience.
• Commercial experience with React and TypeScript.
• Experience building backend services in Java.
• Strong object-oriented programming fundamentals.
• Experience with electronic trading, execution systems, market making or broker algorithms.
• Exposure to AI-assisted software development tools.

Responsibilities

• Build and enhance front-end trading and workflow applications using React, TypeScript and Java.
• Develop and maintain backend services supporting order routing, execution workflows and trading infrastructure.
• Partner with quantitative research and trading teams to deliver new functionality and platform enhancements.
• Scale a global execution platform across multiple regions and asset classes.
• Integrate the platform with external counterparties, brokers and internal systems.
• Leverage AI development tools to accelerate development, testing and code quality.
• Contribute to a collaborative engineering culture focused on innovation and continuous improvement.

Skills

Full stack development

React

TypeScript

Java

Problem solving

Tools

React

TypeScript

Java

Job description

• Building and enhancing front-end trading and workflow applications using React, TypeScript and Java.
• Developing and maintaining backend services supporting order routing, execution workflows and trading infrastructure.
• Partnering closely with quantitative research, execution and trading teams to deliver new functionality and platform enhancements.
• Helping scale a global execution platform across multiple regions and asset classes.
• Integrating the platform with external counterparties, brokers and internal systems.
• Leveraging modern AI development tools and agentic workflows to accelerate development, testing and code quality.
• Contributing to a highly collaborative engineering culture focused on innovation and continuous improvement.

What You'll Be Doing

• Building and enhancing front-end trading and workflow applications using React, TypeScript and Java.
• Developing and maintaining backend services supporting order routing, execution workflows and trading infrastructure.
• Partnering closely with quantitative research, execution and trading teams to deliver new functionality and platform enhancements.
• Helping scale a global execution platform across multiple regions and asset classes.
• Integrating the platform with external counterparties, brokers and internal systems.
• Leveraging modern AI development tools and agentic workflows to accelerate development, testing and code quality.
• Contributing to a highly collaborative engineering culture focused on innovation and continuous improvement.

What We're Looking For

• 4-6 years of software engineering experience.
• Strong full stack development skills.
• Commercial experience with React and TypeScript.
• Strong object-oriented programming fundamentals.
• Experience building backend services in Java.
• Experience with electronic trading, execution systems, market making, broker algorithms or financial technology.
• Exposure to AI-assisted software development tools such as Claude Code, Codex, Cursor or similar.
• Curiosity, strong problem-solving ability and a genuine passion for technology.