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Freelance Remote Java Backend Developer Jobs in California

Horizontal Talent

Java Developer

Menlo Park, CA · On-site +1

$60 - $77.75/hr

We're looking for a seasoned Java Developer to help build and modernize core backend services for a fast-paced enterprise platform. This hybrid role is based in Menlo Park, CA, and offers the ...

Clerkie

Backend Engineer

Los Angeles, CA · Remote

$90/hr

Clerkie is a remote-first company, with over 40 employees spanning 4 time zones across the United ... About the role We're looking for a Backend Engineer who wants to build and own critical systems in ...

YO AI Labs

Backend Engineer - Remote

San Jose, CA · Remote

$80 - $120/hr

Remote Job Summary We are seeking experienced Senior Software Engineers to support an AI training ... Strong proficiency in Python 3, Java, Rust, C++, or TypeScript . * Strong understanding of ...

YO AI Labs

Backend Engineer - Remote

Los Angeles, CA · Remote

$80 - $120/hr

Remote Job Summary We are seeking experienced Senior Software Engineers to support an AI training ... Strong proficiency in Python 3, Java, Rust, C++, or TypeScript . * Strong understanding of ...

YO AI Labs

Backend Engineer - Remote

San Francisco, CA · Remote

$80 - $120/hr

Remote Job Summary We are seeking experienced Senior Software Engineers to support an AI training ... Strong proficiency in Python 3, Java, Rust, C++, or TypeScript . * Strong understanding of ...

YO AI Labs

Backend Engineer - Remote

Palo Alto, CA · Remote

$80 - $120/hr

Remote Job Summary We are seeking experienced Senior Software Engineers to support an AI training ... Strong proficiency in Python 3, Java, Rust, C++, or TypeScript . * Strong understanding of ...

You.com

Senior Backend Engineer

San Francisco, CA · On-site +1

About the Role We're looking for a strong, generalist backend engineer to help build the platform ... This is a remote position open to candidates based anywhere in the United States. We give ...

Hubs.is

Senior Backend Engineer

San Francisco, CA · Remote

Collaborate with frontend, product and devops teams to ensure seamless integration. * Architect for ... Strong problem-solving skills with clear written and spoken English for remote collaboration ...

Hirevouch

Sr/Staff Backend Engineers

San Francisco, CA · On-site +1

Staff/Senior Backend Software Engineer Full-time Hybrid SFBay Area About Us We are building the ... The remaining days are remote. The company culture emphasizes strong communication via Slack and ...

IESF AG

Senior Web3 Back End Engineer

San Francisco, CA · Remote

The company is growing its valued engineering team and we are looking for a skilled Senior Web3 Back E nd Engineer (fully remote role). We are seeking for a seasoned backend engineer with sharp web3 ...

IESF AG

Senior Web3 Back End Engineer

San Francisco, CA · Remote

The company is growing its valued engineering team and we are looking for a skilled Senior Web3 Back E nd Engineer (fully remote role). We are seeking for a seasoned backend engineer with sharp web3 ...

MoneyThumb

Java Engineer I, 100% Remote

San Diego, CA · On-site +1

$55 - $75.50/hr

We're looking for an awesome back-end Java engineer with Machine Learning or AI experience to help us take it to the next level. What you'll do: You'll work in a small, collaborative team on our core ...

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Freelance Remote Java Backend Developer information

What does a freelance remote Java backend developer do?

A Freelance Remote Java Backend Developer is a software professional who specializes in building and maintaining the server-side logic, databases, and APIs for web or mobile applications, primarily using the Java programming language. Working remotely, they collaborate with clients or teams from different locations to deliver backend solutions that ensure the application's performance, scalability, and security. Their responsibilities often include designing and implementing RESTful APIs, integrating with third-party services, fixing bugs, and optimizing backend processes. As freelancers, they typically manage their own schedules and work with multiple clients or projects.

What are the key skills and qualifications needed to thrive as a freelance remote Java backend developer?

To thrive as a Freelance Remote Java Backend Developer, you need strong proficiency in Java, backend frameworks (such as Spring Boot), API development, and a solid understanding of databases, often supported by a degree in computer science or equivalent experience. Familiarity with tools like Git, Docker, cloud platforms (AWS, Azure), and CI/CD pipelines is typically required, and relevant certifications can be advantageous. Excellent problem-solving abilities, clear communication, and self-motivation help you deliver high-quality solutions and collaborate effectively with clients or distributed teams. These skills and qualities are crucial for delivering robust, scalable backend systems efficiently and maintaining client satisfaction in a remote freelance environment.

What are some common challenges faced by freelance remote Java backend developers, and how can they be addressed?

Freelance remote Java backend developers often encounter challenges such as managing communication across time zones, maintaining consistent code quality, and integrating smoothly with distributed teams. To address these, it’s important to establish clear communication channels, use collaboration tools like Slack or Jira, and adhere to standardized coding and documentation practices. Regularly syncing with the client and proactively sharing updates can help ensure alignment and reduce misunderstandings.

What are the most commonly searched types of Remote Java Backend Developer jobs in California?

The most popular types of Remote Java Backend Developer jobs in California are:

What are popular job titles related to Freelance Remote Java Backend Developer jobs in California?

For Freelance Remote Java Backend Developer jobs in California, the most frequently searched job titles are:

What job categories do people searching Freelance Remote Java Backend Developer jobs in California look for?

The top searched job categories for Freelance Remote Java Backend Developer jobs in California are:

What cities in California are hiring for Freelance Remote Java Backend Developer jobs?

Cities in California with the most Freelance Remote Java Backend Developer job openings:

Freelance Remote Java Backend Developer jobs near you
Infographic showing various Freelance Remote Java Backend Developer job openings in California as of June 2026, with employment types broken down into 100% Full Time. Highlights an 35% Physical, 3% Hybrid, and 62% Remote job distribution.

Java Developer

Horizontal Talent

Menlo Park, CA • On-site, Remote

$60 - $77.75/hr

Full-time

This job post has expired today. Applications are no longer accepted.

Job description

We’re looking for a seasoned Java Developer to help build and modernize core backend services for a fast-paced enterprise platform. This hybrid role is based in Menlo Park, CA, and offers the opportunity to contribute to impactful product development, technical design, and scalable system solutions.

Responsibilities
  • Design, develop, and enhance backend services and platform components for a high-visibility business unit.
  • Participate in technical design discussions, whiteboarding sessions, and solution reviews with engineering peers.
  • Build and support microservices that are reliable, scalable, and maintainable.
  • Write clean, high-quality code and contribute to unit testing and code quality improvements.
  • Collaborate closely with cross-functional team members in a fast-moving agile environment.
  • Help define interfaces and data exchange between modules and services.
  • Support performance tuning, optimization, and best practices for highly distributed applications.
  • Contribute to release and deployment processes as part of ongoing delivery efforts.
Skills
  • 7+ years of professional experience in software development, or equivalent experience with an advanced degree.
  • Strong hands-on experience with Java and Spring Framework.
  • Experience developing microservices-based applications.
  • Solid understanding of object-oriented design, software design patterns, and coding principles.
  • Experience working with relational databases such as Oracle, MySQL, PostgreSQL, or Sybase.
  • Ability to design and build scalable, highly available distributed systems.
  • Strong problem-solving skills and the ability to communicate technical ideas clearly.
  • Experience working in agile software development environments.
Preferred Skills
  • Python scripting experience.
  • Experience with cloud platforms and native services, especially AWS or Azure.
  • Hands-on knowledge of containers, Kubernetes, and service mesh technologies.
  • Experience building cloud-based software using open source frameworks and tools.
  • Background in performance analysis and application optimization.
  • Strong knowledge of data structures and algorithms.
  • Ability to work effectively with global teams and adapt to changing priorities.
  • Comfort engaging with technical and business stakeholders in a collaborative setting.

Horizontal is committed to creating an inclusive workplace where diverse perspectives, backgrounds, and experiences are valued. We believe equity and belonging strengthen our teams and help us do our best work together.

By applying for this position, you acknowledge and agree that Horizontal Talent may contact you regarding your application using automated technology, including phone calls, SMS/text messages, or email, which may be delivered by our virtual AI recruiter, Alex.

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