Calypso Developer

• Design, develop, customize, and support Calypso applications, workflows, extensions, and integrations supporting multiple asset classes, including Foreign Exchange (FX), FX Options, Interest Rate Products, Commodities, Credit Derivatives, and 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 best 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, and ACH.
• Develop cloud-native solutions utilizing 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.
• Partner with business users, quantitative analysts, risk management teams, operations, solution architects, and development teams to translate business requirements into scalable technical solutions.
• Support production releases, troubleshoot complex application issues, perform root cause analysis, and continuously improve platform performance, stability, and resiliency.
• Optimize Calypso application performance through tuning, monitoring, and continuous improvement initiatives.
• Participate in solution architecture reviews, technical design sessions, code reviews, and modernization initiatives while mentoring junior developers and promoting engineering best practices.
• Contribute to CGI’s Capital Markets technology practice by identifying opportunities for automation, innovation, cloud modernization, and continuous improvement.

• 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 with Java, Spring Framework / Spring Boot, RESTful APIs, microservices architecture, JBoss or comparable application servers, and messaging technologies (JMS, 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 designing secure, scalable, and highly available enterprise applications using modern software engineering and cloud architecture best practices.
• Strong analytical, troubleshooting, communication, and stakeholder management skills with experience supporting business-critical production systems.
• Experience working within Agile delivery methodologies such as Scrum, Kanban, or SAFe.
• Experience integrating with financial messaging standards and payment networks including SWIFT, FedWire, and ACH.
• Experience with Wall Street Systems, Nasdaq Spectrum, or other enterprise Capital Markets platforms is considered a strong plus.

Desired Qualifications

• Experience with AWS cloud services and container orchestration technologies such as Docker and Kubernetes.
• Experience implementing event-driven architectures using Kafka or other enterprise messaging platforms.
• Familiarity with Infrastructure as Code using Terraform or CloudFormation.
• Experience with observability and monitoring tools such as Splunk, Dynatrace, Grafana, or Prometheus.
• Financial industry certifications or Calypso platform certifications are a plus.

System One, and its subsidiaries including Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan.