Java/API Developer
Job Description
Your key responsibilities
- Lead the design and development of customer-requested enhancements and provide production support for Xpress middleware services and legacy middleware components that integrate with core banking systems.
- Develop, enhance and support Code Connect APIs using REST, SOAP, web services, YAML, Swagger definitions, WSO2 API Manager and WSO2 Enterprise Integrator.
- Remediate static-code, open-source and AI-identified security vulnerabilities using Checkmarx One (CxOne) and Mythos across Java and API code.
- Investigate production issues and monitor Splunk and ThousandEyes alerts to help identify application or architecture-related issues.
- Collaborate with other application teams on enhancements, troubleshooting and production support, including responding to escalations and ServiceNow incidents during scheduled on-call coverage.
Required qualifications
- 6-10 years of Java development experience with strong object-oriented programming skills; API development experience includes Spring Core, Spring Integration and multi-layered architectures.
- Strong knowledge of REST and SOAP web services, Swagger, YAML, XML, JSON, XML Schema Definition (XSD), JSON Schema and data transformation technologies.
- Experience with relational database management systems, Structured Query Language (SQL), database management systems and Java Database Connectivity (JDBC).
- Working knowledge of application security remediation, including static application security testing and software composition analysis using Checkmarx One (CxOne), as well as addressing vulnerabilities in Java and API code.
- Ability to provide production support and participate in a 24x7 on-call rotation for one week every six to eight weeks.
Preferred qualifications
- Experience with Xpress application programming and implementations, including IFX schemas, WebSphere application server configuration and CICS applications.
- Knowledge of WSO2 API Manager, Analytics and Enterprise Integrator, as well as Splunk monitoring.
- Banking industry experience.
The impact you'll make
As a Java Developer/API Developer , you will help maintain and enhance middleware and API services used by hosted and non-hosted clients. Your work will strengthen application security through vulnerability remediation while supporting reliable production services. You will also contribute to incident response, troubleshooting and enhancements across interconnected applications and banking platforms.
What we offer you
When you join FIS, you become part of a team that's shaping how the world pays, banks and invests. We're committed to helping you thrive, both professionally and personally. At FIS, we offer you:
- Internal career growth opportunities
- A voice in the future of fintech
- Always-on learning and development
- Collaborative work environment
- Opportunities to give back
Privacy Statement
FIS is committed to protecting the privacy and security of all personal information that we process in order to provide services to our clients. For specific information on how FIS protects personal information online, please see the Online Privacy Notice .
EEOC Statement
Sourcing Model
Not included in the source posting: about the role.
Skills
Who can apply
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