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Java Backend developer

Company

Vallum Associates

Location

london, england

Posted

May 24, 2026

Position Overview

We are looking for an experienced Backend Developer with strong Java skills to build and maintain scalable, high-performance backend services and APIs for a large microservices-based trading platform.

Key Responsibilities

  • Develop and maintain backend services and APIs using Core Java
  • Work on large-scale microservices and complex codebases
  • Design scalable solutions for high-volume data processing and calculations
  • Write and optimize SQL queries and database structures
  • Troubleshoot performance issues and improve system reliability
  • Build and maintain unit, integration, and API automation tests
  • Collaborate with DevOps, engineering leadership, and business stakeholders

Key Skills

  • 5+ years’ backend development experience with Core Java
  • Strong experience building scalable APIs
  • 2+ years’ experience with S...

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