Sydney, Australia | Posted on 07/27/2026
Urgentrequirement ofSenior Calypso Developer - Contract - Sydney
Requirements
Description:
We are seeking an experiencedSenior Calypso Developerto work on complex trading and post-trade platforms within a financial market?
s technology environment.
This role is hands-on and requires deep expertise inCalypso development, Java, APIs, and Calypso workflows, supporting the full lifecycle of system development, enhancement, and production support.
The successful candidate will design, develop, and support robust Calypso solutions across front-to-back-office processes, working closely with business analysts, architects, and support teams to deliver scalable, high-performance, and regulatory-compliant solutions.
Calypso Development & Customisation
Design and developcustom Calypso solutionsusingJava, Calypso APIs, and framework components
Implement and maintainCalypso workflows, custom actions, rules, scheduled tasks, and event processing
Develop and enhancetrade workflows, lifecycle events, and post-trade processing logic
Configure and extend Calypso functionality fortrade capture, confirmations, settlements, risk, valuation, and collateral
Experience or exposure toCalypso Automated Testing Tool (CATT)for supporting automated regression testing, validating custom workflows/APIs, and ensuring solution stability across releases.
Integration & APIs
Build and supportreal-time and batch integrationsusing Calypso APIs (XML, REST, JMS, messaging frameworks)
Develop and maintain interfaces withupstream and downstream systems(trading, market data, clearing, settlement, reporting)
Support inbound and outbound messaging, feeds, and file-based integrations
Platform Ownership & Support
Performimpact analysisfor change requests, regulatory updates, and Calypso upgrades
Troubleshoot complex production issues, performroot cause analysis, and implement permanent fixes
Optimise system performance, scalability,



and stability across Calypso components
Support BAU activities including incident resolution, release deployments, and enhancements
Delivery & Collaboration
Collaborate closely withBusiness Analyststo translate functional requirements into technical designs
Work with architects to align solutions withenterprise and Calypso architecture standards
Participate inAgile deliveryceremonies and contribute to continuous improvement initiatives
Ensure adherence to coding standards, security, audit, and regulatory requirements
Required Skills & Experience
Core Technical Skills
Robust hands-on experience withCalypso Trading & Risk Management Platform
Extensive experience withCalypso APIs, custom engines, and frameworks
Deep knowledge ofCalypso workflows, rules, tasks, events, and schedulers
StrongSQLskills for data analysis, troubleshooting, and reconciliation
Experience withUnix/Linux, shell scripting, and batch processing
Calypso Functional Knowledge
End-to-endtrade lifecycle expertiseacross Front, Middle, and Back Office
Post-trade processes includingconfirmations, settlements, clearing, margining, and reconciliations
Understanding ofrisk, valuation, P&L;, collateral management, and static/reference data
Integration & Infrastructure
Experience withmessaging frameworks(e.g., JMS, MQ)
Familiarity withmarket data feedsand downstream reporting systems
Knowledge ofCalypso upgrade and migration activitiesis a strong plus
Ways of Working
Experience working inAgile / Scrumdelivery models
Strong analytical, problem-solving, and debugging skills
Ability to work independently in complex, regulated environments
Excellent communication and collaboration skills
Nice to Have
Experience supportingregulatory-driven change
Exposure tohigh-availability or mission-critical trading platforms
Experience with DevOps practices, CI/CD pipelines, or performance tuning
Duration: 06 Monthsandpossible extension
Eligibility:Australian/NZCitizens/PR Holders only
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📌 Senior Calypso Developer - Contract - Sydney (New South Wales)
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