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Freelance Java Backend Developer Jobs in San Diego, CA

Full Stack Java Developer

San Diego, CA · On-site

$55.75 - $72/hr

Be it core Java, full-stack Java, Web/UI designers, Big Data or Cloud or Mobility developers ... Middle and Backend databases. Well versed with front end technologies: HTML 5, JavaScript, CSS3 ...

Sr. Java Applications Engineer

San Diego, CA · On-site

$60.75 - $77.50/hr

Expertise and Strong understanding in building Simple/Intuitive APIs for a very large developer ... Backend Services and API) development 2 years of additional relevant professional experience ...

The Full Stack Java Engineer III works with team to provide complex software programming for new ... Excellent working knowledge of Java backend Spring framework * Experience developing and ...

The Full Stack Java Engineer III works with team to provide complex software programming for new ... Excellent working knowledge of Java backend Spring framework * Experience developing and ...

The Apple Services iCloud Mail team is looking for a passionate Java Server Engineer to help us ... backend services that form the backbone of iCloud Mail. With a 'privacy and security first ...

Software Engineer 1

San Diego, CA · On-site

$55.50 - $75/hr

Strong ability to collaborate with designers, UX specialists, and backend engineers Backend Engineering: * Experience developing web applications using server-side languages, such as Java, Python, or ...

Software Engineer 1

San Diego, CA · On-site

$55.50 - $75/hr

Strong ability to collaborate with designers, UX specialists, and backend engineers Backend Engineering: * Experience developing web applications using server-side languages, such as Java, Python, or ...

The Apple Services iCloud Mail team is looking for a passionate Java Server Engineer to help us ... backend services that form the backbone of iCloud Mail. With a 'privacy and security first ...

Showing results 21-40

Freelance Java Backend Developer information

See San Diego, CA salary details

$10

$58

$77

How much do freelance java backend developer jobs pay per hour?

As of Aug 13, 2026, the average hourly pay for freelance java backend developer in San Diego, CA is $58.00, according to ZipRecruiter salary data. Most workers in this role earn between $51.54 and $66.88 per hour, depending on experience, location, and employer.
What are the most commonly searched types of Java Backend Developer jobs in San Diego, CA? The most popular types of Java Backend Developer jobs in San Diego, CA are:
What cities near San Diego, CA are hiring for Freelance Java Backend Developer jobs? Cities near San Diego, CA with the most Freelance Java Backend Developer job openings:

Sr. Software Backend Engineer (San Diego)

Carlsmed

Carlsbad, CA • On-site

$150K - $170K/yr

Full-time

Medical, Dental, Vision, Retirement, PTO

Re-posted 12 days ago


Job description

About Carlsmed

Our mission is to improve outcomes and decrease the cost of healthcare for spine surgery and beyond. The Carlsmed aprevo personalized surgery platform is designed to improve the standard of care for spine surgery one patient at a time.

Position Description

As Senior Software Engineer, you will work on projects related to proprietary implants, instrumentation, and design automation systems to enable personalized surgery. You'll be working on our full-stack applications, focusing on building robust backend services and creating engaging user experiences. This role offers the opportunity to work with modern technologies and shape the technical direction of our products.

Responsibilities


  • Design and implement scalable backend services using Node.js, GraphQL, and Java/Kotlin (Spring Boot)
  • Build and maintain responsive, performant frontend applications using React
  • Optimize PostgreSQL databases for performance and reliability
  • Lead technical design discussions, architecture reviews, and code reviews
  • Mentor junior engineers and champion engineering best practices
  • Partner with product managers to define requirements and delivery timelines
  • Troubleshoot and debug complex issues across the full stack


Qualifications


  • Education: Bachelor's degree in Computer Science
  • Experience: 5 - 10 years of front end / back end and database experience required
  • Experience with spine or orthopedics highly desired


Skills


  • Proficiency in Node.js and server-side JavaScript
  • Backend experience with Java and/or Kotlin, including Spring Boot
  • Expert knowledge of GraphQL, including schema design and performance optimization
  • Advanced React experience, including state management and performance tuning
  • Deep understanding of PostgreSQL, including query optimization and schema design
  • Strong grasp of software design patterns and engineering principles
  • Strong communication, problem-solving, and debugging skills
  • Prisma ORM, JPA, and database migrations - preferred
  • DevOps and cloud platforms (AWS/GCP/Azure) - preferred
  • CI/CD pipelines and testing frameworks - preferred


Equal Opportunity Employer


Carlsmed is an equal opportunity employer.All applicants will be considered for employment without attention to race, color, religion, sex, sexual orientation, gender identity, national origin, veteran or disability status.Carlsmed is committed to providing reasonable accommodations for candidates with disabilities in our recruiting process. If you need any assistance or accommodations due to a disability, please let us know.

Compensation


The anticipated annual base salary range for this position is $150,000 - $170,000. Individual compensation is determined based on factors such as experience, skills, education, certifications, and geographic location.


In addition to base salary, eligible employees may participate in incentive compensation programs and receive a comprehensive benefits package. Our benefits reflect our commitment to the health and well-being of our employees and their families and include 100% employer-paid medical, dental, and vision insurance premiums, a 401(k) plan with employer matching, and unlimited paid time off (PTO). Your recruiter can provide additional details about our total rewards package during the hiring process.