Freelance Junior Java Developer Jobs in Utah (NOW HIRING)

A leading Consulting Firm is seeking a Calypso Developer for a 6+ month contact to hire role.
Are you passionate about building high-performance trading platforms that power today's global financial markets. Do you enjoy solving complex technical challenges while developing scalable, cloud-native applications that support mission-critical trading operations?
The client is seeking an experienced Calypso Developer to join our team. In this role, you'll design, develop, customize, and integrate enterprise trading and risk management solutions built on the Calypso platform, supporting front-, middle-, and back-office operations across multiple asset classes.
Working closely with business stakeholders, solution architects, quantitative analysts, infrastructure engineers, and market utility providers, you'll develop innovative solutions that modernize trading platforms, streamline business processes, strengthen operational resilience, and support the evolving needs of leading global financial institutions.
This is an outstanding opportunity to work with modern technologies including Calypso, Java, Spring Boot, AWS, microservices, DevSecOps, cloud-native architectures, and enterprise financial integrations, while contributing to large-scale digital transformation initiatives within the Capital Markets industry.
Location: This position is based onsite at a client location in the Salt Lake City, UT area.
Your future duties and responsibilities
How you'll make an impact
As a Calypso Developer, you'll play a key role in designing and delivering scalable, secure, and high-performing trading solutions that support mission-critical Capital Markets operations.
In this role, you will:
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
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
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.
Required qualifications to be successful in this role
What you'll bring
We're seeking an experienced software engineer with deep Capital Markets expertise and a passion for building enterprise-scale trading platforms.
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 enterprise application servers
Messaging technologies (JMS, MQ)
Strong understanding of Capital Markets products and trade processing, including:
Foreign Exchange (FX)
FX Options
Interest Rate Products
Commodities
Credit Derivatives
Exchange-Traded Derivatives
Market Risk
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
Education:Employment Type: CONTRACTOR