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Senior Full Stack Java Developer Jobs in Hayward, CA

Senior Full Stack AI Developer (React/Next.js + Python + LLM) Location: Santa Clara, CA (Onsite) Duration: 9+ Months Employment Type: W2 or Independent Contractor (No C2C through third-party vendors ...

Java Full Stack Developer

San Jose, CA · On-site

$61.50 - $79.50/hr

ClifyX is a company seeking an experienced Java Full Stack Developer. The role requires extensive experience in Java and full stack development, with a focus on working within diverse teams and cross ...

Java Full Stack Developer

San Jose, CA · On-site

$61.50 - $79.50/hr

Java Full Stack Developer Job Location: San Jose, CA Job Type: Contract * 8+ yr experience * Develop and maintain web applications using Java Spring Boot for backend and Angular for frontend

Java Full Stack Developer

San Jose, CA · On-site

$61.50 - $79.50/hr

Java Full Stack Developer Job Location: San Jose, CA Job Type: Contract * 8+ yr experience * Develop and maintain web applications using Java Spring Boot for backend and Angular for frontend

Sr. Java Developer

San Francisco, CA · On-site

$67.50 - $86/hr

Be it core Java, full-stack Java, Web/UI designers, Big Data or Cloud or Mobility developers/architects, we have them all. 4+ years Java programming experience developing J2EE based systems. 5+ years ...

Sr. Java Developer

San Francisco, CA

$67.50 - $86/hr

Be it core Java, full-stack Java, Web/UI designers, Big Data or Cloud or Mobility developers/architects, we have them all. 5+ years Java programming experience developing J2EE based systems. 5+ years ...

Be it core Java, full-stack Java, Web/UI designers, Big Data or Cloud or Mobility developers/architects, we have them all. Hands-on Design development of end-to-end application features using TDD and ...

Java Full Stack Developer

San Jose, CA · On-site

$61.50 - $79.50/hr

Java Full Stack Developer Job Location: San Jose, CA Job Type: Contract * 8+ yr experience * Develop and maintain web applications using Java Spring Boot for backend and Angular for frontend

Java Fullstack Developer

San Jose, CA · On-site

$61.50 - $79.50/hr

Spark Tek Inc is seeking a Java Full Stack Developer to join their team. The role requires proven experience in Java programming and web development frameworks, along with strong problem-solving and ...

Sr. Java Developer

San Francisco, CA

$67.50 - $86/hr

Be it core Java, full-stack Java, Web/UI designers, Big Data or Cloud or Mobility developers/architects, we have them all. 4+ years Java programming experience developing J2EE based systems. 5+ years ...

Be it core Java, full-stack Java, Web/UI designers, Big Data or Cloud or Mobility developers/architects, we have them all. Desired Skills and Experience: 4+ years of PHP and MySQL experience 5+ years ...

Java Full Stack Developer

Pleasanton, CA · On-site

$58.25 - $75.25/hr

MDAEdge is seeking an experienced Java Full Stack Developer to design, develop, and maintain scalable, secure, and high-performance applications. The ideal candidate will have expertise across ...

Be it core Java, full-stack Java, Web/UI designers, Big Data or Cloud or Mobility developers/architects, we have them all. Desired Skills and Experience: 4+ years of PHP and MySQL experience 5+ years ...

Java Full Stack AI Developer

Sunnyvale, CA · On-site

$61.50 - $79.50/hr

Backend - Java 17+, Spring Boot, Microservices architecture, Node.js * Frontend - Full stack MERN ... in a senior or lead engineering capacity and at least 3 end to end embedded AI production ...

Showing results 41-60

Senior Full Stack Java Developer information

See Hayward, CA salary details

$12

$66

$89

How much do senior full stack java developer jobs pay per hour?

As of Sep 2, 2026, the average hourly pay for senior full stack java developer in Hayward, CA is $66.59, according to ZipRecruiter salary data. Most workers in this role earn between $57.88 and $74.66 per hour, depending on experience, location, and employer.

What is a senior full stack Java developer?

Senior Full Stack Java Developers are experienced software professionals who design, develop, and maintain both the front-end and back-end components of web applications using Java and related technologies. They typically work with frameworks such as Spring Boot for the backend and may use JavaScript frameworks like Angular or React for the frontend. In addition to coding, they often lead development teams, make architectural decisions, and ensure best practices are followed throughout the software development lifecycle.

What are the key skills and qualifications needed to thrive as a senior full stack Java developer?

A Senior Full Stack Java Developer needs advanced proficiency in Java, front-end frameworks (such as Angular or React), and a solid understanding of databases, supported by a bachelor’s degree in computer science or related field. Experience with tools like Spring Boot, RESTful APIs, version control systems (e.g., Git), and cloud platforms is typically required, along with relevant certifications. Strong problem-solving, communication, and teamwork skills help developers effectively collaborate and deliver robust solutions. These competencies are crucial for building scalable applications, leading projects, and ensuring efficient development processes.

What are some common challenges senior full stack Java developers face when balancing backend and frontend responsibilities?

Senior Full Stack Java Developers often encounter the challenge of staying up-to-date with both backend Java frameworks and rapidly evolving frontend technologies. Balancing deep expertise in server-side development with proficiency in modern JavaScript frameworks (like React or Angular) can be demanding. Additionally, these professionals often need to effectively prioritize tasks between client and server development while collaborating with specialized frontend or backend team members. Time management, clear communication, and a willingness to learn new tools are essential for success in this multifaceted role.

What are popular job titles related to Senior Full Stack Java Developer jobs in Hayward, CA?

For Senior Full Stack Java Developer jobs in Hayward, CA, the most frequently searched job titles are:

What job categories do people searching Senior Full Stack Java Developer jobs in Hayward, CA look for?

The top searched job categories for Senior Full Stack Java Developer jobs in Hayward, CA are:

What cities near Hayward, CA are hiring for Senior Full Stack Java Developer jobs?

Cities near Hayward, CA with the most Senior Full Stack Java Developer job openings:

Infographic showing various Senior Full Stack Java Developer job openings in Hayward, CA as of August 2026, with employment types broken down into 85% Full Time, 9% Part Time, 5% Contract, and 1% Nights. Highlights an 86% Physical, 4% Hybrid, and 10% Remote job distribution, with an average salary of $138,501 per year, or $66.6 per hour.

Senior Full Stack AI Developer

SolGenie

San Jose, CA • On-site

Contractor

Re-posted 22 days ago


Job description

We have a contract opportunity for Senior Full Stack AI Developer (Onsite) with one of our clients. Detailed job descriptions is provided below.
Title: Senior Full Stack AI Developer (React/Next.js + Python + LLM)
Location: Santa Clara, CA (Onsite)
Duration: 9+ Months
Employment Type: W2 or Independent Contractor (No C2C through third-party vendors)
Visa Eligibility: US Citizens and Green Card Holders only
Must-Have Skills:
  • 7+ years of Full Stack Development experience.
  • Strong hands-on experience with React, Next.js, and TypeScript (Mandatory).
  • Experience building production-grade Full Stack applications.
  • Strong backend development experience with Node.js and/or Python (FastAPI preferred).
  • Experience designing and consuming REST APIs and/or GraphQL.
  • Hands-on experience integrating LLM APIs (OpenAI, Claude, Gemini, NVIDIA NIM, etc.).
  • Experience with streaming AI responses using Server-Sent Events (SSE) or WebSockets.
  • Experience implementing AI chat interfaces or conversational applications.
  • Strong understanding of multi-tenant SaaS architecture, Row-Level Security (RLS), and application scalability.
  • Experience building multi-step AI workflows, conversation state management, and tool/function calling.
  • Experience rendering structured JSON outputs in frontend applications.
  • Strong knowledge of responsive UI development, accessibility, and performance optimization.

Technical Skills:
  • Frontend: React, Next.js, TypeScript, Vercel AI SDK
  • Backend: Node.js, Python, FastAPI, REST APIs, GraphQL, SSE
  • AI/ML: LLM Integration, RAG, Nemotron, Structured JSON Generation
  • Cloud: AWS / Azure / GCP
  • Databases: PostgreSQL, pgvector, Redis
  • DevOps: Docker, GitHub Actions

Nice to Have:
  • LlamaIndex
  • LangChain
  • Model Context Protocol (MCP)
  • Vercel AI SDK