Senior React Developer with Java API & Spring Boot Experience -San Leandro, CA (Local with ID)

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Sid K

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Aug 12, 2026, 2:30:29 PM (2 days ago) Aug 12

Hi Folks,

My client is looking for Senior React Developer with Java API & Spring Boot Experience for 12 Month Contract role based in San Leandro, CA (Local with ID)

Job Title: Senior React Developer with Java API & Spring Boot Experience

Location: San Leandro, CA (Local with ID)
Duration: 12 Month Contract

In this role, you will:

• Work on multiple enterprise applications and digital initiatives.

• Provide technical leadership and informal mentoring to junior developers.

• Develop innovative solutions based on business requirements and technical analysis.• Participate in and lead critical projects, customer engagements, and business processes.

• Provide application-level design, technical documentation, and implementation guidance.

• Participate in establishing and maintaining application development standards and best practices.

• Effectively communicate technical direction to business stakeholders and internal IT teams.

• Advise on issues related to system integration, compatibility, scalability, performance, and platform design.

• Lead moderately complex initiatives and deliverables within technical domain environments.

• Design, code, test, debug, and document software solutions associated with enterprise applications.

• Review technical challenges and recommend appropriate solutions and technologies.

• Collaborate with Product Owners, UX Designers, and Visual Designers to develop next-generation user interfaces and web applications.

• Develop responsive, accessible, and high-performing React-based applications.

• Create reusable components, design patterns, and shared UI libraries to promote consistency and scalability.

• Collaborate closely with backend teams to design, consume, and integrate RESTful APIs.

• Support Java Spring Boot API development and enhancements as needed.

• Troubleshoot and resolve issues across UI, API, and integration layers.

• Participate in API design discussions and contribute to end-to-end solution delivery.

• Assist in implementing application security standards, authentication, and authorization mechanisms.

• Lead projects and act as an escalation point while providing guidance to less experienced team members.

• Demonstrate strong analytical, verbal, and written communication skills.

Required Qualifications

• 5+ years of Software Engineering experience.

• 4+ years of experience with modern HTML, CSS, JavaScript (ES6+), and TypeScript.

• 4+ years of experience developing enterprise web applications using ReactJS or similar modern JavaScript frameworks.

• Strong experience developing responsive, accessible, and high-performance user interfaces.

• Experience creating reusable UI components and scalable front-end architectures.

• Experience consuming and integrating RESTful APIs within React applications.

• 2+ years of experience with Java and Spring Boot development.

• Working knowledge of RESTful services, microservices architecture, and API integration patterns.

• Experience with Git-based source control and collaborative development workflows.