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Java Freelance Jobs in Irvine, CA (NOW HIRING)

... or professional preferred, freelance considered). • University Extension Certification ... logic including HTML or Java Script. • Work experience in a corporate office atmosphere ...

Java Freelance information

See Irvine, CA salary details

$16

$60

$83

How much do java freelance jobs pay per hour?

As of Jul 28, 2026, the average hourly pay for java freelance in Irvine, CA is $60.86, according to ZipRecruiter salary data. Most workers in this role earn between $52.64 and $68.12 per hour, depending on experience, location, and employer.

What are Java Freelancers?

Java Freelancers are independent professionals who offer their expertise in Java programming on a contract or project basis. They work with clients to design, develop, test, and maintain Java-based applications, ranging from web to enterprise-level systems. Unlike full-time employees, Java freelancers typically work for multiple clients and are responsible for managing their own schedules, proposals, and deliverables. Their work may include software development, bug fixing, application optimization, and consulting services. Many businesses hire Java freelancers to fill skill gaps or to complete specific projects without making permanent hires.

What are some common challenges Java freelancers face when working with multiple clients simultaneously?

Java freelancers often juggle several projects at once, which can make managing deadlines and communication a challenge. Balancing different client expectations, project requirements, and code standards requires strong organizational skills and clear communication. Additionally, freelancers must stay updated with the latest Java frameworks and technologies to remain competitive. Proactively setting boundaries, using project management tools, and maintaining transparent updates with each client can help ease these challenges.

What are the key skills and qualifications needed to thrive as a Java Freelance Developer, and why are they important?

To thrive as a Java Freelance Developer, you need strong proficiency in Java programming, knowledge of frameworks like Spring or Hibernate, and often a degree in computer science or related experience. Familiarity with version control systems (e.g., Git), build tools (Maven, Gradle), and cloud platforms is typically required, along with relevant Java certifications being advantageous. Excellent problem-solving, time management, and communication skills set standout freelancers apart. These skills are crucial for delivering high-quality, timely solutions independently while effectively collaborating with clients and teams.

What is the difference between Java Freelance vs Java Developer?

AspectJava FreelanceJava Developer
Work EnvironmentIndependent, remote, project-basedFull-time, in-house or remote
CredentialsSelf-taught or certifications preferredTypically requires a degree in computer science or related field
Employer & Industry UsageClients across various industries, freelance platformsTech companies, corporations, startups
Work ScopeProject-specific, flexible hoursOngoing, team-based development

Java Freelance involves independent, project-based work often done remotely for multiple clients, requiring self-motivation and flexible hours. Java Developers usually work full-time within organizations, collaborating with teams on continuous projects. Both roles require Java skills, but the work environment and employment structure differ significantly.

What are the most commonly searched types of Java jobs in Irvine, CA? The most popular types of Java jobs in Irvine, CA are:
What are popular job titles related to Java Freelance jobs in Irvine, CA? For Java Freelance jobs in Irvine, CA, the most frequently searched job titles are:
What job categories do people searching Java Freelance jobs in Irvine, CA look for? The top searched job categories for Java Freelance jobs in Irvine, CA are:
What cities near Irvine, CA are hiring for Java Freelance jobs? Cities near Irvine, CA with the most Java Freelance job openings:
Infographic showing various Java Freelance job openings in Irvine, CA as of July 2026, with employment types broken down into 64% Full Time, 14% Part Time, 2% Temporary, and 20% Contract. Highlights an 67% Physical, 2% Hybrid, and 31% Remote job distribution, with an average salary of $126,586 per year, or $60.9 per hour.
Mesa Energy Systems, Inc.

$23 - $27/hr

Full-time

Posted 17 days ago


Job description

We are a full-service HVAC, building automation, chiller, and retrofit contractor with a reputation for combining high-quality consulting services with customized energy solutions. Our integrated, single-source solutions include turnkey in-house capabilities with design assistance, as well as engineering applications and automated control systems.


The UX Assistant will support our Service Department operations by streamlining processes with application development, process automation, user support, and graphic design. A qualified candidate must have a strong desire to work in a fast-paced environment, work collaboratively on multiple projects, learn with initiative, and have effective communication skills.


• Meet weekly with team members to manage project delegation, timelines, and production.
• Develop solutions with MS 365 Applications: PowerApps, Power Automate, and SharePoint.
• Support end users and seek feedback when troubleshooting or providing training.
• Assist with data entry to prepare or clean up before implementing a custom UX solution.
• Help drive an engaging, cohesive experience across all company platforms and devices.
• Become immersed in Service Operations to comprehend processes, optimize workflows, and adapt to support role in a corporate HVAC atmosphere.
• Undergo tailored training alongside the UX Designer on active projects in and outside of the Service Department operations


• High school diploma or equivalent.
• 2 years design experience (educational or professional preferred, freelance considered).
• University Extension Certification, Associates, or bachelor’s degree in Graphic Design or UX/UI Design
• Microsoft Office Experience (Excel, Word, Outlook, Suite Package)
• Strong written and oral communication skills.
• Detail oriented, accurately follows instruction, and great note taker.
• Self-motivated with an ability to adapt quickly and navigate new software.
• Creative problem-solving to proactively address issues with logic and efficiency.
• Strong proficiency with Microsoft Office, including Word and Excel.
• A familiarity with coding hierarchy and logic including HTML or Java Script.
• Work experience in a corporate office atmosphere (preferred)
• Two (2) years of experience in Graphic Design using Adobe Creative Suite (preferred).

#Mesa #LI-Mesa #LI-HVACjobs #LI-Onsite


As a leading provider of mechanical and electrical construction, facilities services, and energy infrastructure, we offer employees a competitive salary and benefits package and we are always looking for individuals with the talent and skills required to contribute to our continued growth and success. Equal Opportunity Employer/Veterans/Disabled

Please review our Affirmative Action Policy.


Notice to prospective employees: There have been fraudulent postings and emails regarding job openings. EMCOR Group and its companies list open positions here. Please check our available positions to confirm that a post or email is genuine.
EMCOR Group and its companies do not reach out to individuals to help with marketing or other similar services. If an individual is contacted for services outside of EMCORs normal application process it is probably fraudulent.

Compensation Range: $23 - $27 per hour.