Java Multi-threading Developer – Trading / Risk Platforms

Crisil; Greater London; On-site; GBP 70,000 - 120,000; Full time

Job summary

Crisil is seeking a Java Developer with a focus on capital markets and risk systems. You will work on backend services, APIs and data processing components supporting trading, risk calculations and reporting in a London-based role.

Key responsibilities include building Java-based backends, APIs and data pipelines, implementing asynchronous processing with Kafka, and collaborating with risk, treasury and business teams to deliver end-to-end solutions.

Qualifications

• 7–12 years of experience in Java development.
• Capital markets / risk / trading domain experience required.
• Strong backend focus on APIs and data processing.
• Experience with asynchronous and event-driven processing (Kafka).
• Knowledge of risk systems and reporting pipelines is a plus.

Responsibilities

• Develop and enhance Java-based backend applications for trading and risk use cases.
• Build and maintain APIs, services and data processing components.
• Work on trade data flows, risk calculations and reporting pipelines.
• Implement asynchronous and event-driven processing (e.g., Kafka).
• Collaborate with risk, treasury and business teams to translate requirements into solutions.
• Participate in end-to-end SDLC including development, testing, deployment and support.
• Troubleshoot production issues and optimize system performance.

Skills

Core Java 8/11+

Multithreading

RESTful APIs

Spring / Spring Boot

Event-driven architecture (Kafka)

Tools

Kafka

Batch processing schedulers

Python

Job description

We are looking for a Java Developer with experience in capital markets and risk systems, working on backend services, APIs and data processing components supporting trading, risk calculations and reporting.

Key Responsibilities

• Develop and enhance Java-based backend applications for trading and risk use cases
• Build and maintain APIs, services and data processing components
• Work on trade data flows, risk calculations and reporting pipelines
• Implement asynchronous and event-driven processing (e.g., Kafka-based systems)
• Collaborate with risk, treasury and business teams to translate requirements into solutions
• Participate in end-to-end SDLC including development, testing, deployment and support
• Troubleshoot production issues and optimize system performance

Must-Have Skills

• Strong experience in Core Java (8/11+)
• Strong multithreading and concurrency concepts
• Experience building RESTful services / APIs
• Experience with Spring / Spring Boot framework
• Understanding of event-driven architecture (Kafka or similar)

Domain Experience

• Experience in Investment Banking / Capital Markets
• Understanding of financial workflows such as:

Good-to-Have

• Experience with Kafka / messaging systems
• Exposure to batch processing / schedulers
• Basic knowledge of Python (for automation / scripting)
• Familiarity with CI/CD tools (Jenkins, Git, etc.)
• Exposure to cloud environments (not mandatory)

Experience

• ~7-12 years of experience

Note: Candidates without capital markets / risk / trading domain experience will not be considered