Senior Java Risk Engine Lead - High-Performance FinTech

Bullish, Inc.; Greater London; Hybrid; GBP 140,000 - 180,000; Full time

Job summary

Bullish is seeking a Lead Java Backend Engineer to advance the Risk Technology platform in London. You will design low-latency JVM services, translate complex risk models into scalable software, and collaborate with quantitative analysts and product teams to deliver robust risk solutions.

The role focuses on code quality, continuous optimization, and engineering excellence in a fast-moving, institutionally focused digital asset environment.

Qualifications

• 10+ years of experience as a Java backend engineer.
• Strong experience building high-performance, low-latency JVM services.
• Proven ability to translate risk models into tested software implementations.
• Experience with CI/CD, and modern API design across microservices.

Responsibilities

• Design and build high-quality, scalable JVM services and APIs with low latency.
• Translate risk models into robust software implementations.
• Collaborate with quantitative analysts and product teams to deliver risk solutions.
• Refactor and optimize codebase for performance and maintainability.
• Uphold code quality and best practices with a performance mindset.

Skills

Java backend

Low-latency

JVM optimization

APIs design

Kubernetes

Docker

Cloud (GCP)

Testing (TDD)

Financial risk models

Code quality

Education

BSc in Computer Science

Tools

Git

Docker

Kubernetes

GCP

Chronicle Queue

Kotlin

Job description

Bullish is seeking a Lead Java Backend Engineer to advance the Risk Technology platform in London. You will design low-latency JVM services, translate complex risk models into scalable software, and collaborate with quantitative analysts and product teams to deliver robust risk solutions.

The role focuses on code quality, continuous optimization, and engineering excellence in a fast-moving, institutionally focused digital asset environment.