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Sr. Software Engineer (Java/Spring Boot - Onsite)

NS IT Solutions
San Jose, CA Contractor
POSTED ON 12/10/2025
AVAILABLE BEFORE 2/9/2026
Sr. Software Engineer (Java/Spring Boot - Onsite) Location: San Jose, CA  Work Type: Onsite Monday-Thursday Duration: 6 months (Contract) NOTE: NO H1B // Local Candidates with DL Primary Skills: Java; Spring Boot; Microservices; REST APIs; Backend Engineering; Distributed Systems; Kafka; Kafka Streams; Cassandra; Data Modeling; SQL Performance Tuning; Stored Procedures; Indexing; JVM Performance; Service Resiliency; Idempotency; Circuit Breaking; Messaging Systems; Streaming Platforms; CI/CD; GitHub Actions; Jenkins; Git Workflows; Scalability; Performance Optimization; Cloud-Native Services; API Architecture Role Summary We are seeking a Senior Software Engineer with strong backend engineering expertise in Java and Spring Boot, enterprise service architecture, and distributed systems. This role focuses on building and optimizing cloud native backend services with heavy emphasis on performance, scalability, API design, data modeling, messaging, and streaming services. Required Skills 8 years software engineering experience 5 years backend development using Java Spring Boot API architecture and microservices design Service resiliency - retries, idempotency, circuit breaking SQL database performance (tuning, indexing, stored procedures) Cassandra data modeling & consistency configurations Kafka streams & consumer optimization (offsets, partitioning, schema evolution) CI/CD pipelines (Jenkins, GitHub Actions, etc.) Performance tuning on JVM-based services Git branching and workflows Technical Environment Java / Spring Boot REST API, Microservices SQL Databases Cassandra Kafka CI/CD (GitHub Actions, Jenkins) Distributed services & streaming Soft Skills Strong problem solving Deep understanding of distributed architectures Ability to work onsite & collaborate with cross-functional engineering teams Excellent communication Must Haves Backend engineering Distributed systems Kafka Cassandra Spring Boot SQL performance JVM tuning Warm regards, Vishal (Victor) Verma | Assistant Manager Phone: 732-334-6102 Ext: 116 Email: vishal@nsitsolutions.com NS IT Solutions | Old Bridge, NJ 08857www.nsitsolutions.com

Salary : $50 - $55

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