Production / Application Support Engineer (Level 3/4)

Position: Production / Application Support Engineer (Level 3/4)

Location: Hybrid- Montreal, QC

Job type: Full-time/Permanent hiring

The Production / Application Support Engineer (Level 3/4) is responsible for ensuring the absolute stability, performance, and reliability of mission-critical enterprise platforms. Operating at the highest tier of technical support, you will troubleshoot complex infrastructure and application failures across hybrid on-premises and cloud environments. This role requires a deep technical foundation in Unix systems, legacy and modern database structures, enterprise storage, and advanced scripting for automation.

Roles & Responsibilities

• L3/L4 Technical Support: Provide top-tier engineering support, deep-dive debugging, and resolution for highly escalated, complex application and infrastructure issues.
• Infrastructure Administration: Maintain, monitor, and optimize enterprise Unix/Linux environments to guarantee system availability and resilience.
• Process Automation: Design, build, and maintain robust Python and Perl scripts to automate system health checks, data processing pipelines, and operational tasks.
• Database & Storage Management: Monitor and troubleshoot IBM DB2 database workloads, manage enterprise NAS storage allocations, and ensure data integrity.
• Data Lifecycle Management: Oversee, configure, and maintain enterprise-scale archiving applications to satisfy operational accessibility and compliance frameworks.
• ITIL Service Delivery: Actively lead Incident, Problem, and Change Management pipelines, driving root-cause analysis (RCA) and ensuring safe production deployments.

Required Technical Competencies

• Experience: 8+ years of hands-on technical experience in high-tier production or application support environments.
• OS Administration: Advanced, practical knowledge of Unix/Linux administration and command-line troubleshooting.
• Automation Scripting: Strong capability in writing and debugging Python and Perl scripts for operations and task automation.
• Database Support: Proven technical proficiency supporting IBM DB2 databases, including performance analysis and query troubleshooting.
• Storage Systems: Practical knowledge managing NAS storage systems (allocations, performance, mounting, and access controls).
• Application Archiving: Solid experience managing enterprise archiving applications and high-volume data retention pipelines.
• Operational Frameworks: Deep familiarity with ITIL frameworks, specifically Incident, Problem, and Change Management workflows in zero-downtime environments.