IRS CAS (Sr. Full Stack Developer/Platform Engineer) -PBBA

Client Server Technology Solutions LLC is seeking a Senior Full Stack Developer/Platform Engineer to support the Internal Revenue Services (IRS). The role requires extensive experience in Java/J2EE and Spring Boot development, along with skills in various modern technologies and methodologies.

Responsibilities:

• Customer: Internal Revenue Services (IRS)
• The candidate needs 5+ years of Java/J2EE and Spring Boot development and sustainment experience, along with ReactJS or comparable UI technology
• Experience should include JDK 17+ upgrades, SSO integration, dependency remediation, RHEL/Linux, OpenShift/Kubernetes, containerization, REST/SOAP, database troubleshooting, Git/GitHub, CI/CD awareness, secure coding, regression/smoke validation, UI and functional defect correction, releases, and rollback
• The IRS also specifically requires demonstrated experience migrating applications from VM-based hosting to containerized/OpenShift-aligned deployment patterns while preserving functionality and external interfaces
• Software engineering experience
• Enterprise API development
• Java
• Spring Boot
• REST and SOAP web services
• IBM webMethods
• Enterprise middleware
• Microservices architecture
• OpenShift or Kubernetes
• Enterprise system integration
• Application modernization
• Production support and troubleshooting
• Agile development

Requirements:

• 5+ years of Java/J2EE and Spring Boot development and sustainment experience
• ReactJS or comparable UI technology experience
• Experience with JDK 17+ upgrades
• SSO integration experience
• Dependency remediation experience
• RHEL/Linux experience
• OpenShift/Kubernetes experience
• Containerization experience
• REST/SOAP experience
• Database troubleshooting experience
• Git/GitHub experience
• CI/CD awareness
• Secure coding experience
• Regression/smoke validation experience
• UI and functional defect correction experience
• Releases and rollback experience
• Software engineering experience
• Enterprise API development experience
• Java experience
• Spring Boot experience
• REST and SOAP web services experience
• IBM webMethods experience
• Enterprise middleware experience
• Microservices architecture experience
• OpenShift or Kubernetes experience
• Enterprise system integration experience
• Application modernization experience
• Production support and troubleshooting experience
• Agile development experience
• Bachelor's degree in or equivalent experience
• IRS experience
• Federal Government experience
• API Gateway experience
• DevSecOps environments
• Containerized applications