Senior Java Developer - Outside IR35 - Up to £700 per day

Hunter Bond; Greater London; Hybrid; GBP 112,000 - 147,000; Full time

Job summary

Hunter Bond is seeking a Senior Java Developer for a hybrid Central London role with an initial 12-month contract. The position offers an outside IR35 setup and a day rate up to £700, starting in October.

You will develop and enhance server-side Java applications supporting settlement and post-trade processes within a fast-paced financial markets environment. Responsibilities include building robust services using Spring Boot, collaborating with engineers and stakeholders, and tackling complex

Qualifications

• Experience in financial services, trading or complex transactional environments.
• Hands-on development with Java/JVM and Spring/Spring Boot.
• Settlement/post-trade domain knowledge preferred.
• Experience with Kubernetes and event-driven architectures.
• Ability to work with large, complex data sets.

Responsibilities

• Develop and maintain Server Side Java/JVM applications for settlement workflows.
• Build robust, scalable services using Spring and Spring Boot.
• Collaborate with engineers and business stakeholders to gather requirements.
• Contribute to design, development, testing and production delivery.
• Work across greenfield and brownfield projects in a fast-moving environment.

Skills

Java/JVM

Spring Boot

Kubernetes

Event-driven architecture

Cloud infrastructure

Equities settlement

Post-trade settlements

Fixed Income knowledge

AI coding agents familiarity

Tools

Spring Boot

Kubernetes

Cloud tooling

FIX protocols/engines

Job description

Senior Java Developer - Outside IR35 - Up to £700 per day

Hybrid in Central London

October Start Date

12-Month Initial Contract

We have partnered with a leader in the financial services sector who is looking for experienced Senior Java Engineers to join their Settlements team.

This is a hands-on engineering role focused on developing and enhancing software supporting complex post-trade and settlement workflows. you'll work as part of an experienced engineering team, contributing to both new and existing systems within a fast-moving financial markets environment.

The Role

• Develop and maintain Server Side Java/JVM applications supporting settlement and post-trade processes.
• Build robust, scalable services using Spring and Spring Boot.
• Work across greenfield and brownfield development projects.
• Collaborate with engineers and business stakeholders to understand requirements and deliver effective solutions.
• Contribute to technical design, development, testing and production delivery.
• Work with Kubernetes, event-driven architecture and cloud infrastructure, alongside primarily on-premise environments.
• Troubleshoot complex technical issues and take ownership through to resolution.
• Work comfortably with ambiguity, incomplete information and changing requirements.

Technical Skills:

• Experience working within financial services, trading or similarly complex transactional environments.
• Comfortable working hands-on with existing and new systems.
• Post-trade, settlements or financial markets experience.
• Experience with equities settlement; Fixed Income is a plus.
• Kubernetes and event-driven architecture.
• Experience working with large and complex data sets.
• Familiarity with AI coding agents such as Claude Code, Windsurf or Devin.

The team works on complex settlement and digital asset solutions, including post-trade settlement workflows and trading connectivity.

• Equities settlement; Fixed Income experience advantageous.
• ATS connectivity and FIX protocols/FIX engines.
• EVM experience preferred, with Canton a strong advantage and Solana also relevant.
• Event-driven architectures and distributed systems.

Who they're looking for

You'll be a proactive, collaborative engineer who enjoys solving complex problems and working in a fast-moving environment. you'll be comfortable taking ownership, communicating technical ideas clearly and working effectively when requirements aren't always fully defined.

This role would suit a Senior Java Engineer who wants to work on technically complex financial systems, with strong Spring/Spring Boot development skills and an interest in settlements and post-trade technology.