Senior Web Application and Middleware Systems Integration Specialist

NTT DATA Global Delivery Services Ltd; Bengaluru; On-site; INR 600,000 - 1,000,000; Full time

Job summary

NTT DATA Global Delivery Services Ltd in Bengaluru is seeking a Senior WebApp Systems Integration Specialist to lead middleware and web server management across Linux/Windows environments.

You will administer application servers (WebLogic, WebSphere, JBoss, Tomcat), implement security hardening, CI/CD automation, and high-availability configurations for enterpriseJava deployments. On-call rotations may apply.

Qualifications

• 7+ years in Web/Application/Middleware Administration.
• Hands-on with Apache HTTP, IBM IHS, NGINX, IIS.
• Strong Linux/Unix and Windows Server administration; SSL/TLS knowledge.
• CI/CD, automation tools, and scripting languages; Kubernetes/OpenShift is a plus.
• Cloud hosting (AWS/Azure/OCI) and enterprise Java deployments.

Responsibilities

• Install, configure, and maintain WebLogic, WebSphere, JBoss, Tomcat, and Oracle App Server.
• Admin web servers across Linux/Windows; manage TLS, certificates, load balancing.
• Configure clustering, domain creation, admin nodes, and deployments in CI/CD.
• Monitor JVM performance, memory, GC, and server KPIs using standard tools.
• Automate server builds and deployments using Shell/Python/Ansible/Jenkins.
• Implement security hardening against CIS/STIG standards and RBAC controls.
• Ensure high availability, DR, scaling, and on-call support when required.

Skills

Web/App/Middleware Admin

Apache/IBM IHS/NGINX/IIS

App server admin: WebLogic/WebSphere/J

Education

Bachelor’s Degree in Computer Science / Information Technology

Job description

Webapp Systems Integration Sr Specialist

Req ID: 388155

NTT DATA strives to hire exceptional, innovative and passionate individuals who want to grow with us. If you want to be part of an inclusive, adaptable, and forward-thinking organization,

WebApps Job Description

Key Responsibilities

• 1. Web Server Administration (Apache HTTP, IBM IHS, NGINX, IIS) Install, configure, and maintain Apache HTTP, IBM IHS, NGINX, and IIS across Linux/Windows environments. Configure virtual hosts, reverse proxies, load balancing, SSL/TLS, mod_security, mod_jk/mod_proxy, WAF rules, and request routing. Manage certificates, keystores, aliasing, and automated certificate renewals. Implement hardening guidelines (headers, ciphers, rate limits, firewall rules). Monitor web traffic patterns, tune performance, and troubleshoot HTTP/HTTPS/SSL issues.
• 2. Java Application Server Administration (WebLogic, WebSphere, JBoss, Tomcat, Oracle AS) Install, configure, patch, and upgrade Oracle WebLogic, IBM WebSphere, JBoss EAP/WildFly, Apache Tomcat, and Oracle Application Server. Manage JVM tuning, heap sizing, thread pools, JDBC data sources, JMS resources, session replication, and clusters. Deploy EAR/WAR/JAR applications manually and via CI/CD pipelines. Troubleshoot application issues: classloader conflicts, memory leaks, thread dumps, GC tuning, connection pool bottlenecks. Configure multi‑node clustering, domain creation, admin nodes, managed servers, and load balancers. Set up security realms, LDAP/AD integration, JAAS, J2EE/Jakarta EE security policies.
• 3. Performance Engineering & Monitoring Configure and optimize caching, compression, keep‑alive, connection handling, request limits, and tuning parameters. Monitor JVM performance, GC logs, thread/heap usage, and server KPIs. Use monitoring tools (Dynatrace, AppDynamics, Prometheus/Grafana, Splunk/ELK).
• 4. Automation, DevOps & CI/CD Support Automate server builds, deployments, and configurations using Shell, Python, PowerShell, Ansible, or Jenkins pipelines. Integrate web/app servers with CI/CD (GitHub, GitLab, Azure DevOps, Jenkins). Maintain configuration-as-code for repeatable and compliant deployments.
• 5. Security, Compliance & Hardening Implement SSL/TLS, certificate rotation, PKI, keystore/truststore management. Apply CIS, OWASP, STIG, and organization hardening benchmarks. Manage access controls, RBAC, authentication modules, and secure admin interfaces. Patch vulnerabilities, perform upgrades, and support security audits.
• 6. High Availability, DR & Scalability Set up clustering & load balancing for WebLogic, WebSphere, JBoss, Tomcat, and NGINX/IHS/IIS. Manage horizontal/vertical scaling strategies. Build and maintain DR environments, backups, replication, and failover testing.
• 7. Troubleshooting & Operational Support Diagnose issues across layers: OS, network, DNS, load balancing, reverse proxy, JVM, application code, backend integration. Manage incident response, RCA, and preventive actions. Provide 24 7 on‑call support (if required).

Required Skills & Experience

• 7+ years in Web / Application / Middleware Administration.
• Hands‑on experience with all major web servers: Apache HTTP, IBM IHS, NGINX, IIS.
• Solid administration experience across multiple application servers: Oracle WebLogic IBM WebSphere JBoss/WildFly Apache Tomcat Oracle Application Server.
• Strong Linux/Unix administration; Windows Server administration for IIS.
• Expertise in SSL/TLS, TCP/IP, load balancing, proxying, certificates, keystores.
• Experience deploying and supporting enterprise Java applications.
• Familiarity with CI/CD, automation tools, and scripting languages.
• Good-to-Have Skills Kubernetes / OpenShift, containerized middleware deployments.
• Cloud web/application hosting (AWS/ELB/ALB, Azure App Service, OCI WebLogic Cloud).
• Knowledge of microservices, API gateways, service mesh.
• Reverse proxy security modules (mod_security, NGINX WAF).

Soft Skills & Competencies

• Strong analytical and troubleshooting skills.
• Good documentation and communication skills.
• Customer-focused approach.
• Ability to work in global teams.
• Ability to work in 24 7 support rotations when required.
• Risk identification and proactive mitigation mindset.

Educational Qualifications

• Bachelor’s Degree in Computer Science / Information Technology or equivalent.
• Relevant certifications (if any) preferred.

About NTT DATA

NTT DATA is a $30 billion business and technology services leader, serving 75% of the Fortune Global 100. We are committed to accelerating client success and positively impacting society through responsible innovation. We are one of the world's leading AI and digital infrastructure providers, with unmatched capabilities in enterprise-scale AI, cloud, security, connectivity, data centers and application services. our consulting and Industry solutions help organizations and society move confidently and sustainably into the digital future. As a Global Top Employer, we have experts in more than 50 countries. We also offer clients access to a robust ecosystem of innovation centers as well as established and start-up partners. NTT DATA is a part of NTT Group, which invests over $3 billion each year in R&D. Whenever possible, we hire locally to NTT DATA offices or client sites. This ensures we can provide timely and effective support tailored to each client’s needs. While many positions offer remote or hybrid work options, these arrangements are subject to change based on client requirements. For employees near an NTT DATA office or client site, in-office attendance may be required for meetings or events, depending on business needs. At NTT DATA, we are committed to staying flexible and meeting the evolving needs of both our clients and employees.

NTT DATA is an equal opportunity employer. Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or protected veteran status.

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Experience Level Senior Level