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WSI -Senior Developer (BE) (Java 17, Reactive Programming and Spring WebFlux) - EPS

Nisum
Rocklin, CA Full Time
POSTED ON 12/15/2025 CLOSED ON 1/30/2026

What are the responsibilities and job description for the WSI -Senior Developer (BE) (Java 17, Reactive Programming and Spring WebFlux) - EPS position at Nisum?

Need senior hands on developer having tech stack -Java 17, Reactive Programming and Spring WebFlux.

Any expereince writing payment services would be added but not mandatory.

Location- Rocklin

What You’ll Do

Develop code using Java17, Spring Reactive Programming, Kafka , SQL/NOSQL technologies.

Solve technical problems using cutting edge technologies and best practices.

Propose different ways to solve the same problem and showcase feasible solutions.

Ensure all aspects of the technical design are correctly incorporated.

Contribute technical expertise to all projects as required.

Contribute research and implement POC’s as required.

What You Should Know

Java/J2EE development experience

Hands on microservices – Java17, Spring Boot, Spring Reactive Programming, Kafka, Oracle.

Proficient experience with SOA, Rest Services and Spring, Spring Batch & Schedulers, Spring JPA, Apache Camel and XML.

Proficient experience with unit testing using Mockito, JUnits, test coverage and code quality skills.

Proficient experience with build tools Maven & Gradle, CI/CD pipeline.

Good to have exposure to SOAP API’s.

Good to have UI knowledge in Java Script, Vue JS and Node JS. [Optional]

Embody passion for new technology, open source, and continued skill development Experienced in GIT, SVN or other distributed version control system.

Deep understanding of and experience in design concepts, patterns, and coding standards

Able to identify problems and provide innovative solutions.

Good communication skills and team player

Nice to have-Experience with NoSQL DB(Cassandra/Maria/Mongo/Cosmos)

Experience writing payment services would be huge plus.

Salary: 120K to 135K

Salary : $120,000 - $135,000

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