Job Description
Urgent requirement of
Senior Calypso Developer - Contract - Sydney
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Requirements n
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Description:
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We are seeking an experienced
Senior Calypso Developer
to work on complex trading and post-trade platforms within a financial market?s technology environment. This role is hands-on and requires deep expertise in
Calypso development, Java, APIs, and Calypso workflows
, supporting the full lifecycle of system development, enhancement, and production support.
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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.
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Key Roles & Responsibilities
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Calypso Development & Customisation
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Design and develop
custom Calypso solutions
using
Java
, Calypso APIs, and framework components
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Implement and maintain
Calypso workflows
, custom actions, rules, scheduled tasks, and event processing
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Develop and enhance
trade workflows
, lifecycle events, and post-trade processing logic
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Configure and extend Calypso functionality for
trade capture, confirmations, settlements, risk, valuation, and collateral
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Experience or exposure to
Calypso Automated Testing Tool (CATT)
for supporting automated regression testing, validating custom workflows/APIs, and ensuring solution stability across releases.
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Integration & APIs
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Build and support
real-time and batch integrations
using Calypso APIs (XML, REST, JMS, messaging frameworks)
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Develop and maintain interfaces with




upstream and downstream systems
(trading, market data, clearing, settlement, reporting)
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Support inbound and outbound messaging, feeds, and file-based integrations
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Platform Ownership & Support
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Perform
impact analysis
for change requests, regulatory updates, and Calypso upgrades
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Troubleshoot complex production issues, perform
root cause analysis
, and implement permanent fixes
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Optimise system performance, scalability, and stability across Calypso components
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Support BAU activities including incident resolution, release deployments, and enhancements
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Delivery & Collaboration
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Collaborate closely with
Business Analysts
to translate functional requirements into technical designs
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Work with architects to align solutions with
enterprise and Calypso architecture standards
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Participate in
Agile delivery
ceremonies and contribute to continuous improvement initiatives
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Ensure adherence to coding standards, security, audit, and regulatory requirements
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Required Skills & Experience
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Core Technical Skills
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Strong hands-on experience with
Calypso Trading & Risk Management Platform
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Expert-level
Java development
(server-side, performance-optimised code)
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Extensive experience with
Calypso APIs
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custom engines, and frameworks
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Deep knowledge of
Calypso workflows
, rules, tasks, events, and schedulers
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Strong
SQL
skills for data analysis, troubleshooting, and reconciliation
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Experience with
Unix/Linux
, shell scripting, and batch processing
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Calypso Functional Knowledge
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End-to-end
trade lifecycle expertise
across Front, Middle, and Back Office
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Asset classes:
Rates, FX, Fixed Income, Derivatives, Repos
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Post-trade processes including
confirmations, settlements, clearing, margining, and reconciliations
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Understanding of
risk, valuation, P&L;, collateral management
, and static/reference data
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Integration & Infrastructure
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Experience with
messaging frameworks
(e.g., JMS, MQ)
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Familiarity with
market data feeds
and downstream reporting systems
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Knowledge of
Calypso upgrade and migration activities
is a robust plus
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Ways of Working
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Experience working in
Agile / Scrum
delivery models
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Strong analytical, problem-solving, and debugging skills
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Ability to work independently in complex, regulated environments
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Excellent communication and collaboration skills
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Nice to Have
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Experience supporting
regulatory-driven change
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Exposure to
high-availability or mission-critical trading platforms
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Experience with DevOps practices, CI/CD pipelines, or performance tuning
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Duration: 06 Months
and possible extension
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Eligibility:
Australian/NZ Citizens/PR Holders only
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Email:
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📌 Senior Calypso Developer - Contract - Sydney (New South Wales)
🏢 Hastha Solutions
📍 New South Wales