Java Support Engineer (Distributed Cache )

Datamatics Technologies; Karachi Division; On-site; PKR 2,400,000 - 3,600,000; Full time

Job summary

Datamatics Technologies is seeking a technically strong Distributed Cache & Java Support Engineer to support distributed caching solutions and onboard Java and Spring Boot application use cases to the distributed-cache platform.

The candidate will combine hands-on Java development with practical enterprise distributed cache or in-memory data grid experience, focusing on cache use-case assessment, onboarding, and JVM diagnostics.

Qualifications

• Bachelor's degree in computer science, software engineering or information technology.
• 7+ years of Java backend development experience.
• 3+ years hands-on experience with distributed caching or in-memory data grid technologies.

Responsibilities

• Provide production support for distributed cache clusters and related Java application integrations.
• Monitor cluster health, memory, latency, throughput, capacity and performance.
• Support cache configuration and troubleshooting across distributed maps, Near Cache, eviction, TTL and partitioning.
• Diagnose cache-related incidents including high latency, memory pressure, and data inconsistency.
• Coordinate with application, infrastructure and vendor teams to resolve issues.
• Review and modify Java or Spring Boot code to onboard use cases to the distributed-cache platform.
• Work with application teams to understand use case, data model, and caching objectives.
• Implement cache integration changes and validate serialization, maps, Near Cache, eviction/TTL, and client configuration.
• Troubleshoot JVM and application issues during onboarding, testing, and production stabilization.

Skills

Java backend development

Distributed caching

Spring Boot integration

Education

Bachelor's degree in Computer Science / Software Engineering / Information Technology

Tools

Redis

Hazelcast

Apache Ignite

Ehcache

Infinispan

Memcached

Job description

We are seeking a technically strong Distributed Cache & Java Support Engineer to support distributed caching solutions and onboard Java and Spring Boot application use cases to the distributed-cache platform.

The candidate will combine hands-on Java development with practical enterprise distributed cache or in-memory data grid experience.

The role focuses on cache use-case assessment and onboarding, Java integration support, distributed-cache troubleshooting, and JVM diagnostics.

Key Responsibilities

Job Description

We are seeking a technically strong Distributed Cache & Java Support Engineer to support distributed caching solutions and onboard Java and Spring Boot application use cases to the distributed-cache platform.

The candidate will combine hands-on Java development with practical enterprise distributed cache or in-memory data grid experience.

The role focuses on cache use-case assessment and onboarding, Java integration support, distributed-cache troubleshooting, and JVM diagnostics.

Key Responsibilities

• Provide production support for distributed cache clusters and related Java application integrations
• Monitor cluster health, partition distribution, memory, latency, throughput, capacity, and performance
• Support cache configuration and troubleshooting across distributed maps, Near Cache, eviction and expiry/TTL, partitioning, backup and replication, serialization, and cluster discovery
• Diagnose cache-related incidents including high latency, memory pressure, member restarts, split-brain conditions, data inconsistency, and degraded performance
• Coordinate with application, infrastructure, and vendor support teams to investigate issues and drive technical resolution
• Review and modify Java or Spring Boot code required to onboard application use cases to the distributed-cache platform
• Work with application teams to understand the use case, data model, access pattern, expected load, and caching objectives
• Implement application-side cache integration changes and validate serialization, distributed maps, Near Cache, eviction/TTL, and client configuration
• Troubleshoot JVM and application issues encountered during onboarding, integration testing, and production stabilization

Minimum Qualification & Experience

• Bachelor's degree in computer science, Software Engineering, or Information Technology
• 7+ years of relevant experience in Java backend development, Java application support, distributed systems, or closely related engineering work
• 3+ years of hands-on experience with distributed caching or in-memory data grid technologies in conjunction with Java applications

Must Have

• Strong hands-on Java development experience, including the ability to write and modify Java code
• Strong JVM troubleshooting capability, including memory management, garbage collection, thread dumps, heap analysis, and performance diagnosis
• Hands-on Spring Boot development or application-support experience, including cache integration or use-case onboarding
• Hands-on experience with any distributed caching or in-memory data grid technology such as Redis, Hazelcast, Apache Ignite, Ehcache, Oracle Coherence, Infinispan, Memcached, or comparable platforms. Training will be provided on the selected platform.
• Strong understanding of distributed maps, Near Cache, eviction/expiry/TTL, partitioning, backup/replication, split-brain, serialization, and cluster discovery

Good to Have

• Production application support experience in banking, telecom, or other mission-critical environments, including incident triage, root cause analysis, and documentation
• Basic support-level exposure to Kubernetes, containers, Linux, networking, and optionally Anthos or OpenShift; deep platform expertise is not required
• Familiarity with CI/CD processes and deployment-pipeline troubleshooting
• Experience with Splunk, AppDynamics, or Hazel cast Management Center, plus basic TLS/mTLS and certificate troubleshooting.