The Role

Your role
Bring your specialist knowledge and experience to a company managing 50% of the world s MIPS and play a critical role in our modernization mission. You ll be in good company among our global community of experts leading the future of mainframe modernization. Experts who share knowledge openly and collaborate freely.

In this role, you ll design, build and maintain the high-volume business logic that runs on the mainframe. At the same time you ll play a key role in refactoring legacy code to enable up-to-date cloud and mobile applications to seamlessly interact with the mainframe s core data.

What you will do

Manages Liberty runtime configuration and tuning
Handles JVM settings, certs, keystoretruststore, and security configs
Supports OAuthSSO and application runtime hardening
Resolves WASLiberty specific migration issues

Middleware Administration

- Install, configure, administer, and maintain IBM WebSphere Application Server (WAS) and WebSphere Liberty environments.
- - Perform server provisioning, patching, upgrades, and configuration management across development, test, and production environments.
- - Manage application deployments and environment configurations while ensuring platform stability and availability.
- Application Support Operations

- Provide L2L3 support for business-critical applications hosted on WebSphere and Liberty.
- - Troubleshoot application, middleware, and infrastructure-related issues using logs, thread dumps, heap dumps, and diagnostic tools.
- - Perform root cause analysis (RCA) and implement corrective and preventive actions.
- Performance Capacity Management

- Monitor application server health, performance, and capacity utilization.




- - Tune JVM parameters, thread pools, JDBC connection pools, and server configurations to optimize performance.
- - Collaborate with development teams to resolve performance bottlenecks and improve application efficiency.
- WebSphere Liberty Modernization

- Support migration initiatives from Traditional WebSphere Application Server to WebSphere Liberty.
- - Configure and support Java EEJakarta EE, MicroProfile, and Spring-based applications running on Liberty.
- - Assist in modernization efforts involving containerization and cloud-native deployments.
- DevOps Automation

- Support CICD pipelines and automated deployment processes.
- - Develop automation scripts using Shell, Python, or Ansible.
- - Work with container platforms such as OpenShift, Kubernetes, and Docker to deploy and manage Liberty workloads.
- Security Compliance

- Configure SSL certificates, LDAP integration, authentication mechanisms, and access controls.
- - Implement security best practices and remediation activities.
- - Participate in vulnerability assessments, audits, and compliance reviews.
- - Ensure Liberty server configurations align with security and operational standards.
- Documentation Collaboration





- Create and maintain operational runbooks, support documentation, and technical procedures.
- - Collaborate with application development, infrastructure, database, and cloud teams.
- - Participate in change, incident, problem, and release management processes.
- Who You Are

Required skills and experience

- IBM WebSphere Application Server (WAS)
- - WebSphere Liberty Open Liberty
- - Java, Java EE Jakarta EE
- - Linux Unix Administration
- - JVM Performance Tuning
- - SSL, LDAP, SSO Authentication
- - Jenkins, Git, Maven, Gradle
- - Shell Scripting or Python
- - Incident Management and Production Support
- Preferred skills and experience

- OpenShift, Kubernetes, Docker
- - Spring Boot and MicroProfile
- - Monitoring Tools (Splunk, Dynatrace, AppDynamics, ELK, Grafana, Prometheus)
- - Infrastructure Automation using Ansible
- - Cloud Platforms (AWS, Azure, or IBM Cloud)
- - Experience with enterprise application modernization initiatives
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Disclaimer : This job posting has been aggregated from external source. Role details, content, and availability are subject to change. Applicants are advised to confirm the latest information directly on the company website before applying.

📌 WebSphere / Liberty Engineer (Pune)
🏢 Kyndryl
📍 Pune