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Java Full Stack Developer (React & Spring Boot Microservices)

San Leandro, CA, US • Posted 1 day ago • Updated 4 hours ago

Contract W2

Contract Independent

No Travel Required

On-site

$65 - $75/hr

CogniSoft Technologies

Fitment

Dice Job Match Score™

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Job Details

Skills

Communication
API
Agile
Amazon Web Services
Apache Kafka
Apache Maven
Backend Development
Continuous Delivery
Continuous Integration
Build Tools
Cascading Style Sheets
Conflict Resolution
High Availability
JPA
JUnit
Java
JavaScript
Financial Services
Git
GitHub
GitLab
HTML5
Hibernate
Css3
Database
MySQL
NoSQL
OAuth
Object-relational Mapping
Kubernetes
Microservices
Microsoft Azure
MongoDB
Design Review
DevOps
Problem Solving
RESTful
React.js
Docker
FOCUS
Jenkins
Spring Framework
Spring MVC
Mockito
Oracle
User Experience
Web Applications
Wireframe
PostgreSQL
Scalability
Scrum
Sprint
TypeScript
SQL
UI

Summary

Role: Java Full Stack Developer (React & Spring Boot Microservices)

Location: San Leandro, CA

Duration: 12+ Months

In-person Interview Must

We are seeking a highly skilled Full Stack Java Developer with a strong frontend focus on React and deep expertise in Spring Boot–based microservices. The ideal candidate will design, develop, and maintain scalable, highperformance web applications and RESTful services for enterprise-grade platforms, particularly within regulated or highavailability environments.

Key Responsibilities

Frontend (React – Strong Focus)

Design and develop modern, responsive Single Page Applications (SPAs) using React (Hooks, Context API, Redux)
Build reusable, modular UI components using JavaScript/TypeScript, HTML5, CSS3
Integrate frontend applications with backend APIs using REST/JSON
Optimize UI performance using lazy loading, code splitting, and efficient state management
Collaborate with UX/UI designers to translate wireframes into high-quality user experiences

Backend (Java & Spring Boot Microservices)

Design and develop Spring Boot microservices following RESTful and microservices architecture principles
Implement business logic using Java (8/11/17+), Spring MVC, Spring Data JPA/Hibernate
Build secure APIs with OAuth2, JWT, and role-based access controls
Ensure high availability, scalability, and fault tolerance using resilient design patterns
Integrate with relational and NoSQL databases (PostgreSQL, Oracle, MySQL, MongoDB)

DevOps & Engineering Practices

Write unit and integration tests using JUnit, Mockito, Jest, Enzyme
Participate in CI/CD pipelines using Maven, Jenkins, GitHub/GitLab, Azure DevOps
Containerize and deploy services using Docker and Kubernetes (preferred)
Work in Agile/Scrum teams, contributing to design reviews, code reviews, and sprint ceremonies

Required Skills

Strong proficiency in React (v16+ / v18 preferred)
Solid backend development experience with Java and Spring Boot microservices
REST API design and integration expertise
Experience with SQL and ORM frameworks (JPA/Hibernate)
Hands-on experience with Git, build tools, and CI/CD pipelines
Strong problem-solving and communication skills

Nice to Have

Experience with Kafka or event-driven architectures
Cloud experience on AWS, Azure, or Google Cloud Platform
Exposure to Micro-frontend architecture
Banking, Financial Services, or other regulated domain experience

Employers have access to artificial intelligence language tools (“AI”) that help generate and enhance job descriptions and AI may have been used to create this description. The position description has been reviewed for accuracy and Dice believes it to correctly reflect the job opportunity.

Dice Id: 10527831
Position Id: 8947365
Posted 1 day ago

Company Info

About CogniSoft Technologies

CogniSoft Technologies focuses on providing niche Business Intelligence & Data Analytic solutions to businesses across various industries. We are Tableau Alliance Partners. We are also an SAP certified Company.

We are a team of experienced, dedicated, hardworking, and innovative professionals who have had proven their expertise in different business verticals such as Banking and Financial Industry, Healthcare, Supply chain, Insurance, Software Development, IT consulting, Business consulting etc.

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