Senior Java - Distributed Cache & JVM Support Engineer

Datamatics Technologies LLC; Islamabad; On-site; PKR 2,400,000 - 4,200,000; Full time

Job summary

Datamatics Technologies LLC 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 role combines hands-on Java development with enterprise distributed cache or in‑memory data grid experience, focusing on cache use-case onboarding, Java integration, and JVM diagnostics to ensure production stability.

Qualifications

• Bachelor’s degree in computer science, software engineering, or information technology.
• 7+ years of relevant experience in Java backend development or support.
• 3+ years hands-on experience with distributed caching / in-memory data grid technologies with Java apps.
• Strong Java development skills and ability to modify Java code.
• Strong JVM troubleshooting including memory management, GC, thread dumps, heap analysis, and performance diagnosis.
• Spring Boot development or app-support experience with cache integration or onboarding.
• Experience with distributed caching or in-memory data grid technologies such as Redis, Hazelcast, Ignite, Ehcache, Coherence, Infinispan, Memcached.

Responsibilities

• Provide production support for distributed cache clusters and Java application integrations.
• Monitor cluster health, memory, latency, throughput, capacity, and performance.
• Configure and troubleshoot distributed maps, Near Cache, eviction and TTL, partitioning, backup/ replication, serialization, and cluster discovery.
• Diagnose cache-related incidents including high latency, memory pressure, split-brain, 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.

Skills

Java backend development

Java application support

Distributed systems

Spring Boot

JVM troubleshooting

Cache integration

Education

Bachelor's degree in computer science / software engineering / information technology

Tools

Redis

Hazelcast

Apache Ignite

Ehcache

Oracle Coherence

Infinispan

Memcached

Job description

Datamatics Technologies LLC 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 role combines hands-on Java development with enterprise distributed cache or in‑memory data grid experience, focusing on cache use-case onboarding, Java integration, and JVM diagnostics to ensure production stability.