CareerPlan

Senior Java Developer

London, England, GBFull-time2026-10-23 → 2026-11-10

Core

Senior Java Developer building and evolving a post-trade technology platform, including in-house systems, APIs, client reporting, and web portals.

Role type

Senior IC Java Developer (Capital Markets)

Builds

Post-trade technology platform, in-house systems, APIs, client reporting tools, and web portals

Domain

Financial Services / Capital Markets / Post-trade

Deliverable

production ML models | product features

Required skills

Java 11+, Spring/Spring Boot, multi-threading, performance tuning, TDD, BDD, Microservices, AWS/Azure/GCP, Terraform, CI/CD, Git, Maven, JUnit, Spock, Mockito

Preferred skills

Team leadership, Groovy, FpML, FIX/FIXML, JSON, REST, Message Queuing, Cloud-native infrastructure, AI/ML tooling, LLM integrations

Technologies

Java, Spring Boot, AWS, Azure, GCP, Terraform, GitHub, Azure DevOps, Jenkins, JUnit, Spock, Mockito, Git, Maven, FIX, FpML, JSON, REST

Responsibilities

Design and develop in-house systems, APIs, and web portals; customize third-party trading systems; mentor a team of developers; apply TDD/BDD and clean code practices; liaise with Client Services and Product Management; work with global/offshore teams

Seniority

Senior, hands-on IC with mentoring responsibilities