Senior Java Middleware Engineer / Apache ServiceMix Specialist

Position Overview

We are seeking an experienced Senior Java Middleware Engineer / Apache ServiceMix Specialist to support the analysis, optimization, and modernization of a critical middleware platform. The successful candidate will be responsible for improving system performance, diagnosing complex issues, and providing technical recommendations to enhance reliability, scalability, and maintainability.

Key Responsibilities

• Analyze and optimize the existing Apache ServiceMix middleware platform.
• Review and enhance Apache Karaf, Apache ActiveMQ, and overall middleware configurations.
• Monitor, analyze, and improve JVM performance, including memory management, garbage collection, and runtime optimization.
• Identify, troubleshoot, and resolve memory leaks, performance bottlenecks, and system inefficiencies.
• Conduct detailed performance assessments and root-cause analyses.
• Evaluate platform vulnerabilities, technology obsolescence, and associated risks.
• Define and implement recommendations to improve application stability, scalability, and performance.
• Collaborate with development and infrastructure teams to optimize middleware architecture.
• Review CI/CD and build processes, leveraging GitLab and related development environments.
• Produce technical documentation, assessment reports, and performance improvement roadmaps.

Required Skills & Experience

Technical Expertise

• Strong hands-on experience in Java development.
• Proven expertise with:
  • Apache ServiceMix
  • Apache Karaf
  • Apache ActiveMQ
• Advanced knowledge of:
  • JVM tuning and optimization
  • Garbage Collection (GC) analysis
  • Memory profiling and leak detection
  • Thread analysis and troubleshooting
  • Performance monitoring and diagnostics
• Experience with middleware architecture, integration patterns, and messaging systems.
• Knowledge of vulnerability assessment and technology lifecycle management.
• Familiarity with GitLab, source control, build pipelines, and deployment processes.

Preferred Tools

• JProfiler, YourKit, VisualVM, Eclipse MAT
• Prometheus, Grafana, ELK Stack
• Maven, Jenkins, GitLab CI/CD
• Linux environments and shell scripting

Qualifications

• Bachelor's or Master's degree in Computer Science, Software Engineering, or a related field.
• 7+ years of experience in Java development and middleware technologies.
• Proven experience in performance optimization and troubleshooting of enterprise applications.
• Strong analytical, communication, and reporting skills.

Deliverables

• ServiceMix platform assessment report.
• JVM and middleware configuration review.
• Memory leak and performance bottleneck analysis.
• Vulnerability and obsolescence assessment.
• Actionable recommendations and optimization roadmap.
• Performance improvement reports with measurable outcomes.