Sr. Java Full Stack Developer (React + Spring Boot) (ONLY W2 & No C2C)

Role: Sr. Java Full Stack Developer (React + Spring Boot)

Location: San Leandro, California, USA (Onsite Direct F2F post Turbo Check)

Experience: 9+ Years

Duration: 6+ Months Contract

Turbo Check Validation Mandatory

Consultant must provide a personal email ID and phone number linked to social media or online apps (Facebook, Instagram, food delivery, etc.) used in the US for Turbo Check verification.

Candidates without valid Turbo Check clearance will not be considered (Mphasis standard process).

Position Summary:

Looking for a Sr. Java Full Stack Developer with strong expertise in React.js, Java 11+, Spring Boot, and RESTful API development to design and develop scalable, high-performance enterprise web applications.

Key Responsibilities:

Develop & maintain full-stack web applications using React.js and Java/Spring Boot.

Build & integrate RESTful APIs and microservices architectures.

Ensure code quality through reviews, debugging, and performance tuning.

Collaborate with QA, DevOps, and Product teams in Agile environments.

Mandatory Skills:

Frontend: React.js, React Hooks, Redux, TypeScript, JavaScript (ES6+), HTML5, CSS3

Backend: Java 11+, Spring Boot, Spring MVC, Spring Security, RESTful APIs, Microservices

Database: SQL (MySQL/PostgreSQL/Oracle); NoSQL (MongoDB plus)

Version Control / CI-CD: Git, Jenkins, Maven/Gradle, SonarQube

Core Competencies: OOPs, Design Patterns, Agile/Scrum, Problem Solving, Debugging

Preferred Skills:

AWS / Azure | Docker / Kubernetes | JUnit | Mockito | Webpack | OAuth2 | JWT

Education:

Bachelor s or master s in computer science / IT or related field.