Windows Cluster & Application Integration Engineer - KeyLink Backend Operations

Project description

The project focuses on providing L2/L3 engineering and infrastructure support for the KeyLink application hosted on Windows Failover Cluster environments, ensuring high availability, stability, and smooth FE/BE application operations.

The role involves cluster administration, failover/switchover, and application recovery, FE/BE troubleshooting, log analysis, SQL/Oracle connectivity validation, SSL certificate management, PowerShell automation, and incident resolution, while coordinating with Windows, Database, Infrastructure, and Development teams.

Responsibilities

• -Manage and support Windows Server and Failover Cluster environments.

-Perform cluster/application start, stop, move, switchover, and recovery activities.

-Support KeyLink FE/BE applications, including Backend startup/shutdown sequences.

-Monitor and analyze Windows cluster and application logs to troubleshoot production issues.

-Validate SQL/Oracle application-to-database connectivity and troubleshoot related failures.

-Manage SSL certificates using Windows MMC and resolve certificate-related issues.

-Troubleshoot login, redirect, FE/BE communication, and failover issues.

-Use PowerShell for operational tasks, health checks, and automation.

-Document incidents, cluster switchovers, application recovery, and troubleshooting activities.

-Coordinate with Windows, Cluster, DB, Infrastructure, and Application Development teams for issue resolution.

SKILLS

Must have

• - 7+ years of relevant experience in Windows Server Administration: Strong hands-on experience in Windows Server administration, including services, Event Viewer, permissions, networking, system health checks, and production troubleshooting.
• Windows Failover Clustering: Hands-on experience with Failover Cluster Manager, including cluster nodes, groups, resources, dependencies, failover, switchover, and cluster health monitoring.
• Cluster Application Management: Experience performing application group start, stop, move, node switchover, failover validation, and application recovery within a Windows clustered environment.
• KeyLink Application Support: Hands-on experience supporting KeyLink or similar enterprise applications, including FE/BE components, Backend startup/shutdown sequences, KK menu utilities, and application group management.
• FE/BE Troubleshooting: Strong understanding of Front-End and Back-End communication with the ability to troubleshoot application flows, redirects, login issues, backend failures, and failover behavior.
• Log Analysis: Strong ability to analyze Windows Event Viewer, cluster events, and FE/BE application logs to identify and troubleshoot application, cluster, and infrastructure issues.
• SQL/Oracle Connectivity: Good understanding of SQL Server and Oracle connectivity with the ability to validate and troubleshoot application-to-database connectivity issues.
• SSL Certificate Management: Hands-on experience installing, managing, and troubleshooting SSL certificates using Windows MMC and validating certificate-related application connectivity.
• PowerShell: Working knowledge of PowerShell scripting for Windows administration, application/service monitoring, cluster health checks, troubleshooting, and automation of repetitive activities.
• Production Support & Incident Management: Strong experience handling production incidents, application outages, cluster/Backend issues, application recovery, incident documentation, and timely technical escalation.
• Cross-Team Coordination: Ability to effectively troubleshoot and coordinate with Windows Engineering, Cluster Administration, Database, Infrastructure, and Application Development teams for end-to-end issue resolution.

Nice to have

Access-card/login troubleshooting

Applet-flow troubleshooting

Cluster monitoring/dashboards

Advanced PowerShell automation

SQL/Oracle administration