Senior Java Software Engineer for Real-Time Trading Platform

Fasanara; Greater London; On-site; GBP 90,000 - 120,000; Full time

Benefits offered by this job

Bonus scheme

Medical & dental insurance

Life insurance

EAP

Pension

Maternity/paternity leave

Parental leave

Cycle to work

Charity giving

Wellbeing budget

Team socials

Job summary

Fasanara Digital in London is seeking a skilled Java Software Engineer to join a small, high-performing team supporting our 24/7 trading activity. You will own the development of our multi-venue collateral management platform and related data pipelines.

You will work primarily in Java and Kotlin on both new development and production systems, collaborating with investment stakeholders to deliver robust, scalable solutions for digital assets and traditional markets.

Qualifications

• At least 5 years of professional software engineering experience.
• Strong commercial Java experience.
• Experience designing and developing distributed systems.
• Experience with real-time, event-driven, and high-availability production systems.

Responsibilities

• Develop, maintain, and enhance the multi-venue collateral management system supporting 24/7 trading activity.
• Build resilient distributed, real-time, and event-driven systems with high-availability requirements.
• Integrate with trading venues to source account, position, collateral, and other operational data.
• Design reference data frameworks and accounting pipelines for traditional and digital assets.
• Develop primarily in Java and Kotlin, contributing to architecture while remaining hands-on.
• Maintain, refactor, and improve existing production code alongside new features.
• Own technical problems end-to-end from design to production delivery.
• Collaborate with engineers and investment stakeholders to translate business needs into technical solutions.
• Utilize AI-assisted development tools to boost productivity and software quality.

Skills

Java

Kotlin

Distributed systems

Real-time systems

High availability

Tools

Kafka

Apache

Python

Job description

Fasanara Digital in London is seeking a skilled Java Software Engineer to join a small, high-performing team supporting our 24/7 trading activity. You will own the development of our multi-venue collateral management platform and related data pipelines.

You will work primarily in Java and Kotlin on both new development and production systems, collaborating with investment stakeholders to deliver robust, scalable solutions for digital assets and traditional markets.