Linux (UNIX) Application Support Engineer

We are seeking a highly experienced Senior Linux/UNIX Application Support Engineer with deep expertise in supporting enterprise-grade applications running on Linux environments. The ideal candidate has 10 15+ years of hands-on experience managing installation, configuration, upgrades, patching, troubleshooting, and operational stability of mission-critical middleware, databases, and infrastructure services. This role is focused on production stability, lifecycle management, automation of maintenance activities, and cross-platform application support in large-scale enterprise environments., Application Installation & Lifecycle Management Install, configure, and maintain enterprise applications on Linux/UNIX systems Perform version upgrades, migrations, and patch management across production and non-production environments Validate compatibility between application layers, OS versions, and dependent libraries Maintain installation standards, runbooks, and deployment documentation Patching & Upgrades Plan and execute regular patch cycles for applications and middleware Coordinate OS-level dependencies with Linux system administrators Perform rollback planning and disaster recovery validation for upgrades Ensure compliance with security and vendor patch requirements Production Support & Incident Management Provide Level 2/Level 3 production support for Linux-hosted applications Troubleshoot performance issues, crashes, memory leaks, and connectivity problems Conduct root cause analysis (RCA) for major incidents Work with engineering, database, and infrastructure teams to resolve critical outages Automation & Tooling Automate installation, patching, and health checks using scripting (Bash, Python, Ansible, etc.) Improve deployment pipelines and reduce manual intervention Integrate monitoring and alerting systems for proactive issue detection Performance & Capacity Management Analyze application performance and system resource utilization Tune JVM-based and database-driven applications Assist in capacity planning and scalability assessments Collaboration & Documentation Work closely with developers, DBAs, network engineers, and security teams Maintain operational documentation, SOPs, and runbooks Participate in on-call rotations for critical systems

10 15+ years of experience in Linux/UNIX system or application support Strong expertise in enterprise application installation, patching, and upgrades Deep understanding of middleware, databases, and distributed systems Strong troubleshooting skills across OS, application, and network layers Experience with automation tools and scripting (Bash, Python, Ansible) Familiarity with monitoring/logging tools (e.g., Splunk, Prometheus, ELK stack) Experience working in large enterprise or financial services environments preferred