Skills :

NGINX ADMINISTRATION, WEBSPHERE, WAS, LINUX, REVERSE PROXY, LOAD BALANCER, PERFORMANCE TUNING, SSL, TLS, HTTP DEBUGGING, 4XX, 5XX, JVM TUNING, DEPLOYMENT, INCIDENT MANAGEMENT, RCA, SHELL SCRIPTING, PRODUCTION SUPPORT

Job Description :

Provide advanced administration, configuration, and troubleshooting support for Nginx and WAS environments, ensuring optimal system performance, stability, and scalability.

Roles & Responsibilities :

- Manage and troubleshoot Nginx server configurations and performance issues.

- Configure and optimize : Reverse proxy setups, Load balancing and routing rules, SSL/TLS configurations.

- Perform performance tuning (caching, compression, worker settings).

- Handle incident calls, conduct in-depth technical analysis, and provide resolution.

- Perform Root Cause Analysis (RCA) for major incidents.

- Implement change requests, deployments, and configuration updates.

- Should have hands-on experience on Linux commands.

- Shell Scripting knowledge.

- Additionally Administer and troubleshoot WebSphere Application Server environments : IHS & WAS installation and configuration, Application deployment, Cluster and node management, JVM tuning and analysis.

- Develop and maintain technical documentation and SOPs.

Technical Requirements :

1. Primary Nginx :

- Strong expertise in : Nginx architecture and configuration, Reverse proxy and load balancing (Layer 4/Layer 7), URL rewriting and request routing, SSL/TLS troubleshooting.

- Experience in : Performance tuning, Debugging HTTP errors (4xx/5xx).

2. Secondary WAS & IHS :

- Hands-on experience with : WebSphere Application Server administration, Application deployments and troubleshooting, JVM tuning and performance analysis.

- Knowledge of : Clusters, nodes, and federated environments.

3. Other Skills :

- Linux/Unix administration.

- Shell scripting (preferred).

- Monitoring tools (AppDynamics, Dynatrace, Prometheus).

Key Competencies :

- Strong analytical and problem-solving skills.

- Ability to handle production-critical issues.

- Leadership and mentoring abilities.

- Effective stakeholder communication.

Key Performance Indicators (KPIs) :

- Complex incident resolution efficiency.

- RCA quality and prevention of recurring issues.

- System performance improvements.

- Change success rate.

- Team mentoring effectiveness.