Senior Java Integration Engineer (webMethods / Spring Boot)

This position supports a mission-critical federal enterprise integration environment operating middleware services processing tens of millions of transactions monthly., As our Senior Java Integration Engineer, you will serve as the senior technical resource sustaining IBM webMethods-based integration services while leading their progressive modernization to Java/Spring Boot microservices on OpenShift., * Middleware Engineering: Design, develop, troubleshoot, and sustain enterprise middleware, ESB flows, adapters, and REST/SOAP interfaces.

• Modernization Execution: Lead modernization work packages decomposing legacy webMethods patterns into performant Java/Spring Boot microservices on OpenShift.
• Interface Continuity: Maintain strict consumer/provider interface compatibility during dual-run migration waves.
• Platform Currency: Support runtime upgrades, SSL certificate updates, credential rotations, and dependency remediation.
• Documentation & Review: Produce detailed design specifications, developer validation evidence, and release packages while mentoring team members.

• Experience:
• At least 8 years of enterprise integration or middleware engineering experience.
• At least 4 years of hands-on IBM webMethods experience (Integration Server, ESB flows, adapters).
• At least 4 years of Java / Spring Boot microservice development experience.
• Technical Expertise:
• RESTful and SOAP web services, JSON/XML processing, message routing, and file transfer patterns.
• OpenShift or Kubernetes containerized deployment patterns.
• AppDynamics, ELK log analysis, and secure coding practices.
• Clearance & Security:
• Must possess U.S. work authorization.
• Must be able to obtain and maintain a federal Moderate Risk Public Trust (MBI level) background investigation.

Pulled from the full job description

• Health insurance
• Paid time off
• Vision insurance
• Dental insurance, * Target Salary Range: $160,000 - $185,000 / year (Note: Final offer is subject to candidate experience and expectations), * Salary & Contingency Confirmation: State your expected salary range and confirm your availability for a contingent start in November 2026.
• Alex AI Assessment: Complete an automated AI assessment interview through Alex AI. (Candidates achieving a score of 80/100 or higher will advance to recruiter review).
• Recruiter Screening Call: Connect with our recruiting team to discuss your hands-on technical experience, federal background/suitability, and contract alignment.
• Final Technical Review & Selection: Final candidate slate submission and formal placement consideration.

Pay: $160,000.00 - $185,000.00 per year

Benefits:

• Dental insurance
• Health insurance
• Paid time off
• Vision insurance

At The C.A.S.E. Engineering Group, we specialize in cybersecurity advisory services, modernizing IT architectures, developing IT strategic plans, and engineering innovative systems and software. C.A.S.E. stands for Cybersecurity, Architecture, Strategy, and Engineering. We take a balanced, tailored approach to solving unique organizational challenges while leveraging industry best practices for long-term success.