> Markdown version of [/jobs/ext/3957882-calypso-developer](https://www.wearedevelopers.com/jobs/ext/3957882-calypso-developer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Calypso Developer - **Company:** P2PSoftTek Inc - **Location:** United States - **Experience:** Experienced - **Contract:** Contract - **Skills:** Java (Programming Language), Accounting Systems, Application Programming Interfaces (APIs), Amazon Web Services, Data Analysis, Server Applications, Application Performance Management, Microsoft Azure, Cloud Computing, Code Review, Information Systems, Continuous Integration, Extract Transform Load (ETL), Relational Databases, Database Storage Structures, Payment Systems, Java Message Service (JMS), Spring Framework, WildFly (JBoss AS), Enterprise Messaging Systems, Cisco Nexus Switches, Calypso Programming Language, Software Engineering, SQL Databases, Systems Integration, Enterprise Data Management, Enterprise Software Applications, Spring Cloud, DevOps Tools - Open-source, Spring-boot, Infrastructure as Code (IaC), Containerization, Information Technology, Bitbucket, Restful APIs, Terraform, Devsecops, Jenkins, Microservices - **Published:** October 27, 2026 - **Apply:** https://www.dice.com/job-detail/fb42f08e-a8ab-43d6-824a-737dde60544d ## About the Role Bachelor's degree in Computer Science, Information Systems, Engineering, or a related technical discipline. - **5+ years of enterprise software development experience**, including at least **3 years of hands-on Calypso development** within Capital Markets environments. - Strong experience customizing and extending the Calypso platform, including workflows, APIs, trade lifecycle processing, back-office operations, and enterprise integrations. - Advanced proficiency in: - Java - Spring Framework / Spring Boot - RESTful APIs - Microservices architecture - JBoss or comparable enterprise application servers - Messaging technologies, including JMS and MQ - Strong understanding of Capital Markets products and trade processing, including FX, FX Options, Interest Rate Products, Commodities, Credit Derivatives, Exchange Traded Derivatives, Market Risk, and Credit Risk. - Extensive experience with SQL, relational databases, data modeling, ETL development, and enterprise data integration. - Experience developing cloud-native applications using AWS (preferred) or Azure, including CI/CD pipelines and DevSecOps tools such as Jenkins, Bitbucket, Nexus, Terraform, or similar technologies. - Experience integrating with financial messaging standards and payment networks, including SWIFT, FedWire, and ACH. ## Description As a Calypso Developer, you will design and deliver scalable, secure, and high-performing trading solutions supporting mission-critical Capital Markets operations. - Design, develop, customize, and support Calypso applications, workflows, extensions, and integrations across multiple asset classes, including: - Foreign Exchange (FX) - FX Options - Interest Rate Products - Commodities - Credit Derivatives - Exchange Traded Derivatives - Develop enterprise applications using Java, Spring Framework, Spring Boot, REST APIs, microservices, JBoss or equivalent application servers, and messaging technologies while following secure software engineering practices. - Design, build, and maintain integrations between Calypso and enterprise applications, market utilities, and third-party platforms, including: - DTCC SDR - MarkitWire - Bloomberg TOMS - SEF platforms - AcadiaSoft - TriResolve - WebICE - SWIFT - General Ledger systems - FedWire - ACH - Develop cloud-native solutions using AWS, containerization technologies, Infrastructure as Code (IaC), CI/CD pipelines, and DevSecOps practices. - Design, optimize, and maintain SQL queries, database structures, ETL processes, and enterprise data integrations supporting trading operations, regulatory reporting, risk management, and analytics. - Optimize Calypso application performance through tuning, monitoring, and continuous improvement initiatives. - Participate in solution architecture reviews, technical design sessions, code reviews, and modernization initiatives.