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Freelance Remote Java Engineer Jobs in San Diego, CA

HV SCADA Engineer II (Remote)

San Diego, CA · On-site +1

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

The HV SCADA Engineer II will provide intermediate level engineering support for the design ... C, C++, Java, Python, Structured Text (IEC61131-3) desired. * Experience working with SEL ...

HV SCADA Engineer II (Remote)

San Diego, CA · On-site +1

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

The HV SCADA Engineer II will provide intermediate level engineering support for the design ... C, C++, Java, Python, Structured Text(IEC61131-3)desired. * Experience working with SEL ...

Senior Site Reliability Engineer

San Diego, CA · Remote

$58.25 - $77.50/hr

This is a remote, contract opportunity for a project Arctiq is delivering for a client. Candidates ... Expertise in Go, Python, or Java and advanced knowledge of Linux internals. * Extensive experience ...

Senior Site Reliability Engineer

San Diego, CA · Remote

$60.50 - $80.50/hr

This is a remote, contract opportunity for a project Arctiq is delivering for a client. Candidates ... Expertise in Go, Python, or Java and advanced knowledge of Linux internals. * Extensive experience ...

Software Engineer, Platform Engineering

San Diego, CA · Remote

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

This is a remote position, however, the candidate must live in San Diego, CA or surrounding areas ... as Java, JavaScript, Python, Go, Typescript, React etc. * Understanding of test practices ...

Sr. Engineer, AI Developer Tools (Remote)

San Diego, CA · On-site +1

$137K - $171K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

... Java 21 upgrades). This role is perfect for a visionary technologist passionate about leveraging AI ... Tealium Connects (remote-first working) , enabling many of us to choose where we do our best work ...

Senior DevSecOps Engineer

San Diego, CA · On-site +1

$112K - $179K/yr

This hybrid support role (75% remote, 25% onsite at a government facility) in the San Diego area is ... Full stack software development (e.g., Java, Python, TypeScript, React, SQL) * Atlassian suite ...

This hybrid support role (75% remote, 25% onsite at a government facility) in the San Diego area is ... Full stack software development (e.g., Java, Python, TypeScript, React, SQL) * Atlassian suite ...

Senior DevSecOps Engineer

San Diego, CA · On-site +1

$112K - $179K/yr

This hybrid support role (75% remote, 25% onsite at a government facility) in the San Diego area is ... Full stack software development (e.g., Java, Python, TypeScript, React, SQL) * Atlassian suite ...

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Freelance Remote Java Engineer information

See San Diego, CA salary details

$28

$64

$90

How much do freelance remote java engineer jobs pay per hour?

As of Aug 19, 2026, the average hourly pay for freelance remote java engineer in San Diego, CA is $64.15, according to ZipRecruiter salary data. Most workers in this role earn between $52.84 and $72.50 per hour, depending on experience, location, and employer.

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Cities near San Diego, CA with the most Freelance Remote Java Engineer job openings:

Infographic showing various Freelance Remote Java Engineer job openings in San Diego, CA as of June 2026, with employment types broken down into 1% As Needed, 83% Full Time, 7% Part Time, 2% Temporary, 6% Contract, and 1% Nights. Highlights an 35% Physical, 3% Hybrid, and 62% Remote job distribution, with an average salary of $133,437 per year, or $64.2 per hour.

Senior Software Engineer remote

ESRhealthcare and EXEC STAFF RECRUITERS

San Diego, CA • Remote

$40 - $85/hr

Full-time

Re-posted 6 days ago


Job description

Senior Software Engineer remote

$40 - $85/hour

pay

Required Skills

Python3

JAVA

Rust

Algorithms

Basics C++

Typescript

bug fixing

feature implementation

codebase refactoring

performance optimization

Job Description

Job Title: Senior Software Engineer

Job Type: Contractor

Location: Remote

Job Summary: In this role, you'll apply your expertise to help train next-generation AI systems. Your work will shape how models learn, reason, and perform through high-quality, real-world input. No prior experience in AI is required — your domain knowledge is what matters.

Key Responsibilities:

Contribute expert-level knowledge to bug fixing, feature implementation, codebase refactoring, and performance optimization across a range of programming languages.

Analyze and enhance software codebases to ensure clarity, maintainability, and efficiency.

Collaborate with multidisciplinary teams to provide feedback and insights for AI model improvement.

Develop robust solutions and document best practices to support scalable AI training workflows.

Evaluate existing system architecture and recommend technical strategies for optimal results.

Deliver clear, concise written and verbal communication regarding technical findings and project progress.

Support the continuous improvement of AI systems by providing real-world coding expertise in challenging scenarios.

Required Skills and Qualifications:

Proficiency in Python3, Java, Rust, or TypeScript, with additional experience in C++ or Go considered a strong asset.

Deep understanding of algorithms, data structures, and performance tuning.

Demonstrated experience in debugging complex software issues and delivering maintainable solutions.

Strong background in feature development and codebase refactoring.

Proven ability to optimize software for performance and scalability.

Exceptional written and verbal communication skills, with a keen attention to detail.

Track record of success in collaborative, cross-functional teams, ideally in remote settings.

Preferred Qualifications:

Previous experience working on large-scale, distributed codebases.

Familiarity with modern AI or machine learning systems is a plus, though not required.

Background in participating in rigorous code reviews and contributing to the development of software best practices.

We are seeking strong Software Engineers to join our customer's team with expertise in Python3, Java, Rust, Go, C++, or TypeScript. This is a unique opportunity to directly impact the next generation of AI by leveraging your advanced engineering skills in a dynamic, remote setting.

Working Place:

San Diego, California, United States

Company
:


ESR Healthcare