Senior Calypso Software Developer – London

Company: Nexus Jobs
Apply for the Senior Calypso Software Developer – London
Location: London
Job Description:

Overview

In this role you will contribute as a Senior Calypso Software Developer in London, shaping development for the collateral management platform and future business lines. You’ll translate requirements into actionable tasks, collaborate with BA/QA, and deliver quality code within timescales. You will support stability and continuity, mentor juniors, and ensure AML compliance in a regulated financial environment. This is a chance to work on Calypso V14 and broaden capabilities in cash management, FX and securities.

Responsibilities

  • Assess business requirements and provide development estimates
  • Translate user requirements into user stories and technical tasks
  • Collaborate with BA and QA to deliver fit-for-purpose solutions
  • Deliver high-quality code changes within deadlines
  • Manage service integration and transition from CTB
  • Develop and conduct regression and NFR testing
  • Follow change and incident management processes (ITIL preferred)
  • Act as Second/Third Line RTB escalation
  • Provide regular development progress updates
  • Mentor and support junior team members
  • Maintain AML compliance with applicable laws and policies
  • Provide overnight support to ensure system stability and availability

Key requirements

  • Degree in Information Technology or equivalent
  • Experience in a regulated environment, ideally Financial Services
  • Senior level analyst developer/Team Leader
  • Experience leading support/development teams
  • Knowledge of trade life cycle including settlements, collateral, securities
  • Mentoring and coaching
  • Cross-functional collaboration
  • Clear communication and stakeholder updates
  • Java
  • Calypso API
  • Oracle DBMS

Posted: September 14th, 2026