Cloud Java Backend Engineer

Cloud Java Backend Engineer – Distributed Data Platforms

Location: Jersey City, New Jersey

Locals Preferred –In person interview

Open for W2 only- No c2c/1099 or third party resumes

Due to the nature of the role client is only acceptingUSC/GC /GC EAD only no other visas accepted.

JobOverview

We areseeking a hands-on Java Backend Engineer to build and enhance a cloud-hosteddistributed data platform. The platform currently uses Apache Cassandra andgRPC APIs and is expanding to support additional data technologies, includingOLAP databases, vector databases, and graph databases.

The idealcandidate will have strong Java and Spring Boot skills, experience withgRPC-based services, practical AWS knowledge, and a performance-focusedapproach to building scalable, low-latency backend systems. Experienceoptimizing P90/P99 latency is particularly valuable.

RequiredQualifications

• 10+ years of Strong Java and Spring Boot development experience.
• Hands-on experience with gRPC services and API integrations.
• Practical Apache Cassandra experience, including data modeling and query performance.
• Experience with AWS ECS, Lambda, and Step Functions.
• Strong understanding of distributed systems and scalable backend application design.
• Experience with performance engineering, latency optimization, and production troubleshooting.
• Strong data structures, algorithms, and coding skills.
• Ability to explain technical decisions and system design clearly.

PreferredQualifications

• Experience with OLAP databases.
• Exposure to vector databases and AI-enabled data platforms.
• Experience with TigerGraph or other graph databases.
• Experience supporting high-throughput, low-latency applications in production environments.