Java Developer C2C requirements (Mongo DB & AI- RooCode and Claude)

US staffing Inc; Sunnyvale (CA); On-site; USD 150,000 - 190,000; Full time

Job summary

US staffing Inc is seeking a highly experienced Java Developer to join a fast paced, on-site team in Sunnyvale, CA (and Austin, TX). The role emphasizes enterprise Java, MongoDB, and hands-on use of AI tools RooCode and Claude to build scalable services.

Candidates should have 10+ years in Java, 5+ years with Mongo, and strong problem-solving skills. You will work across a multi-tier web application stack, AWS, REST/JSON, and NoSQL databases, delivering robust, low-latency APIs.

Qualifications

• 10+ years of enterprise Java development.
• Strong CS fundamentals (data structures, algorithms).
• Hands-on experience with AWS and RESTful services.
• Experience with NoSQL databases (MongoDB).
• Familiarity with AI tools RooCode and Claude is a plus.

Skills

Java

AWS

Communication

Problem solving

NoSQL

Tools

Spring Framework

Spring Data

Spring Boot

REST API

Hibernate/JPA

JUnit/TestNG

Oracle

MongoDB

Job description

Role: Java Developer (Mongo DB & AI-RooCode and Claude)
Location: Sunnyvale CA/Austin TX- onsite
Duration: 6+Months C2H
Mode: Video

Job Details:

Must-Have: 10+ more years with Java, and 5+more years with Mongo, and hands on experience with AI tools like [ RooCode and Claude ]

-Minimum 10 years of experience in enterprise Java development-Strong foundation in Computer Science fundamentals such as data structures and algorithms-Experienced in delivering advanced solutions for a multi-tier, distributed web application with AWS knowledge and experience-Knowledge in the Object Oriented concepts, Java programming language, including understanding of its syntax, core libraries, and features-Hands-on programming experience with Java and J2EE, Java11 related technologies Spring Framework, Spring Data, spring-boot, RESTful Services, JUnitTestNG-Solid understanding of technologies such as Web Services, REST API, XML, JSON, HTTP, SSL, TCPIP, Caching

solutions, application performance tuning-Experience in developing applications that utilize relational databases (e.g. Oracle) and other less structured data stores (NoSQL)-Experience in building low latency service APIs, and data aggregation pipelines-Ability to articulate the benefits of Test Driven Development, Continuous Integration.-Excellent troubleshooting, problem-solving skills and the ability to design scalable, and maintainable software solutions.-Ability to communicate effectively-Self driven, have good communication skills, to take ownership on thee project deliverables,-Have keen eye for quality and have great attitude towards work and ability to work collaboratively in a team environmentMust haveJava 8 and above, Spring, Oracle, No-SQL, REST API, JPA, Hibernate, AWS knowledge