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October 13, 2026
Calypso Developer
Senior • Remote
240 - 270 PLN/yr
Wrocław, DS, Poland
Quick Facts
Role: Calypso Developer
Focus: Fixed income, foreign exchange, and derivatives trading platform development
Work style: Fully remote (Poland/Romania residents only)
Collaboration: Direct with North America and Europe client teams
Description
You will build and extend a Calypso-based vendor platform used for fixed income, FX, and derivatives workflows. The work is engineering-led: you will implement and enhance Calypso features (APIs, workflows, engines, events, reporting, scheduled tasks) rather than only configuring UI components. This is a long-term, remote role with ownership over core development and close collaboration with business analysts and stakeholders.
Responsibilities
Build and maintain Calypso APIs, workflows, engines, events, reporting, and scheduled tasks using Java
Integrate Calypso with external systems using MQ, Kafka, and Webservice/HTTP
Write and optimize SQL; troubleshoot database issues in Oracle-backed Calypso environments
Support Calypso applications on Linux/Unix; use shell scripting to automate development and operational tasks
Maintain and improve build, deployment, and release processes using GitHub, Azure DevOps, Ansible, and JFrog Artifactory
Work from business analyst tickets and requirements; think critically to shape solutions
Fix defects, participate in code reviews, and maintain code quality
Support testing and validation before changes reach production
Use AI tools to speed up development or testing where it makes sense
Requirements
5+ years hands-on Calypso development experience (V17+ strongly preferred)
5+ years Java development experience
Experience with the Calypso collateral management module
Strong SQL and database experience, preferably Oracle
Strong DevOps experience across source control, build automation, deployment automation, and release management
Hands-on experience with GitHub, Azure DevOps, Ansible, and JFrog Artifactory
Solid understanding of fixed income, FX, interest rate derivatives, and credit derivatives
Experience supporting high-volume trading environments in investment banking/capital markets
Ability to work independently and collaborate cross-functionally in structured project environments
Ability to deal with ambiguity; ask clear questions and proactively develop solutions
Strong communication skills in trader-facing, high-stakes settings
Ability to maintain 3–4 hour overlap with US Eastern business hours (more flexibility during onboarding)
Residents of Poland or Romania only; citizens/legal residents with work permission welcome
Benefits
Long-term remote role with major-bank stability
Professional growth and direct collaboration with client teams in North America and Europe
Competitive compensation and ample time-off options
Increasing schedule flexibility after onboarding
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