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Freelance Remote Java Backend Developer Jobs in California

You.com

Senior Backend Engineer

San Francisco, CA · Remote

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 ...

Magnite

Engineer II, Backend APIs

Los Angeles, CA · On-site +1

$125K - $135K/yr

... F remote, T/W/TH in-office) West Coast - Remote At Magnite, we cultivate an environment of ... Primary development experience in modern (latest JVM version) Java for high-throughput, low-latency ...

Hubs.is

Senior Backend Engineer

San Francisco, CA · On-site +1

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 ...

Scanner

Backend Engineer

San Francisco, CA · On-site +1

Proficiency in at least one backend language like Rust, Go, C/C++, Java, or Swift, and willingness ... Our Tech Stack Talented engineers can pick up new languages and frameworks quickly. Here's what our ...

IESF AG

Senior Web3 Back End Engineer

San Francisco, CA · On-site +1

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 ...

Xage Security

Senior Backend Engineer

Palo Alto, CA · Remote

$150K - $180K/yr

... Remote Access Named in Forrester research on Operation Technology Security Solutions, and ... Knowledgeable in C++/go/Java-based secure coding, vulnerability assessment, threat analysis.

You.com

Senior Backend Engineer

San Francisco, CA · On-site +1

$200K - $250K/yr

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 ...

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Freelance Remote Java Backend Developer information

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 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 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.

Senior Backend Engineer

You.com

San Francisco, CA • Remote

Full-time

Re-posted 15 days ago

Job description

About the Role

We're looking for a strong, generalist backend engineer to help build the platform behind our AI search products and infrastructure that already supports millions of queries a day. The role spans a lot of ground: scalable systems, the APIs and SDKs developers build on top of, and the billing and account infrastructure our enterprise customers need to run their business on our platform.

This is a remote position open to candidates based anywhere in the United States. We give preference to candidates in San Francisco Bay Area or New York, where we have offices, but we're happy to consider strong remote candidates elsewhere in the US.

Responsibilities

  • Design, build, and maintain backend systems that support web-scale, AI-driven search products
  • Shape our public API and SDKs into tools developers can rely on and enjoy building with
  • Build the billing, account, permissions, and provisioning systems that support our enterprise customers
  • Maintain performant production databases (SQL and NoSQL) and analytics stores at scale
  • Apply observability practices suited to large-scale, fast-changing AI workloads
  • Participate in an on-call rotation and help build monitoring that catches issues early
  • Refactor and improve existing systems, and help shape team-wide best practices

Qualifications

  • A strong generalist engineer, comfortable owning the full lifecycle from design to deploy
  • Strong instincts for distributed systems, data modeling, and API design, with good judgment about when to prioritize speed versus long-term scalability
  • A track record of shipping and operating mission-critical services that hold up under real-world, high-volume traffic
  • Primarily backend-focused (Python or similar), comfortable working across the stack when needed
  • Familiar with Kubernetes, CI/CD pipelines, and debugging system-level issues
  • Experience with at least one of: billing/payments systems, B2B SaaS tooling, enterprise software, or LLM/AI model integrations and products
  • Strong product instincts and a builder's mindset - motivated by solving the underlying customer problem, not just closing out a ticket

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