Java Software Engineer

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Senior Java Developer

11 roles available (mid to senior level)

Pay rate: Outside IR35 – £600 to £800/day (depending on experience)

Duration: Initial 6–9 months (programme running through to 2027)

Working Arrangement: Hybrid – ~2 days/week in London


A major Financial Services client on a large-scale back-office transformation programme, and we’re looking to onboard 11 Java Developers across mid to senior levels.


You’ll be working on a platform re-architecture programme, building integration services across trade lifecycle, settlement, and reconciliation workflows.


This is a long-term, greenfield initiative with strong technical challenges and a modern engineering environment.


Tech Stack

  • Java (11+) / Spring Boot
  • Microservices & REST APIs
  • AWS (preferred)
  • Kafka / Event-driven architecture
  • SQL / Relational databases
  • Docker / Kubernetes
  • Nice to have: TypeScript, Camunda

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Company: Sanderson
Apply for the Java Software Engineer
Location: London
Job Description:

Senior Java Developer

11 roles available (mid to senior level)

Pay rate: Outside IR35 – £600 to £800/day (depending on experience)

Duration: Initial 6–9 months (programme running through to 2027)

Working Arrangement: Hybrid – ~2 days/week in London

A major Financial Services client on a large-scale back-office transformation programme, and we’re looking to onboard 11 Java Developers across mid to senior levels.

You’ll be working on a platform re-architecture programme, building integration services across trade lifecycle, settlement, and reconciliation workflows.

This is a long-term, greenfield initiative with strong technical challenges and a modern engineering environment.

Tech Stack

  • Java (11+) / Spring Boot
  • Microservices & REST APIs
  • AWS (preferred)
  • Kafka / Event-driven architecture
  • SQL / Relational databases
  • Docker / Kubernetes
  • Nice to have: TypeScript, Camunda

Posted: May 16th, 2026