Senior Java Software Engineer, FinTech Trading Platform

Fasanara Capital; Greater London; On-site; GBP 90,000 - 130,000; Full time

Benefits offered by this job

Performance-related Bonus Scheme

Private Medical & Dental Insurance (B"

Life Insurance

Employee Assistance Programme

Pension (Salary sacrifice)

Cycle to Work

Wellbeing Budget

Job summary

Fasanara Capital is hiring an experienced Java Software Engineer to join Fasanara Digital and take ownership of systems powering 24/7 trading activity. You will develop and maintain a collateral management platform, reference data, and accounting infrastructure for both digital assets and traditional markets.

You will work on hands-on development across new and existing production systems, designing solutions while improving and scaling code.

Qualifications

• At least 5 years of professional software engineering experience.
• Strong commercial Java experience.
• Experience designing and developing distributed systems.
• Experience working with real-time, event-driven, and/or high-availability production systems.
• Strong understanding of software engineering fundamentals, system design, and production reliability.
• Comfortable maintaining, debugging, and improving existing production code as well as developing new systems.
• Strong problem-solving and analytical skills.
• Ability to work independently and take ownership in a fast-paced, high-performance environment.
• Strong communication and collaboration skills.

Responsibilities

• Develop, maintain, and enhance our multi-venue collateral management system supporting 24/7 trading activity
• Build resilient distributed, real-time, and event-driven systems with high-availability requirements
• Build and maintain integrations with trading venues to source account, position, collateral, and other operational data
• Design reference data frameworks and accounting pipelines supporting both traditional financial instruments and digital assets
• Develop primarily in Java and Kotlin, contributing to architecture and technical design while remaining highly hands-on
• Maintain, refactor, and improve existing production code alongside developing new functionality
• Take end-to-end ownership of technical problems, from design through to production delivery and ongoing support
• Work closely with engineers and investment stakeholders to translate business requirements into effective technical solutions
• Use modern AI-assisted development tools to improve engineering productivity and software quality

Skills

Java

Distributed systems

Real-time

High availability

Production reliability

Problem-solving

Communication

Tools

Kafka

Apache

Python

Job description

Fasanara Capital is hiring an experienced Java Software Engineer to join Fasanara Digital and take ownership of systems powering 24/7 trading activity. You will develop and maintain a collateral management platform, reference data, and accounting infrastructure for both digital assets and traditional markets.

You will work on hands-on development across new and existing production systems, designing solutions while improving and scaling code.