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Senior Middleware Platform Engineer (Apache, Tomcat & Ansible) - 85145

Hospitality Full Benefits Career Growth
Company

S.i. Systems

Location

Toronto, Canada

Posted

March 19, 2026

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About This Opportunity

Line of Business: VDI and Mobility

Duration: 8 months (Possibility of Extension)

Location: Downtown Toronto or Scarborough - Hybrid - 2-3 days onsite

Must Have Requirements:

  • 3+ years Ansible (roles, collections, Molecule, CI/CD).
  • Strong Linux (RHEL), networking, TLS/PKI, and load balancing fundamentals.
  • JVM operation basics (heap/GC) and Java web app deployment experience.

    • Responsibilities:

    • Design reverse proxy and app tier topologies:

  • Active/active Tomcat clusters with load balancing & health checks (at Apache layer or external LB).
  • Session management strategy: sticky sessions via cookie, or session replication/Redis-backed sessions when stickiness is not possible.

    • • Performance engineering:

  • Tomcat connector threads, acceptCount, connectionTimeout, JVM sizing (Xms/Xmx), GC tuning (G1/Parallel), and thread pools.

    • • High availability & scaling:

  • Multi-AZ/region design, zero...