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Part Time Java Developer Jobs in California (NOW HIRING)

Brain Gain Recruiting

Explainable AI Engineer

Palo Alto, CA · Remote

$122K - $165K/yr

Experience with Java and GitHub (Actions) * Building SaaS applications * Experience with GenAI and ... You will have an opportunity to start as a contractor (preferred; full-time or part-time, at least ...

iCode San Ramon

Be Seen First

Senior Instructor/Teacher (Seasonal/Summer/After-School)

San Ramon, CA · On-site

$25 - $30/hr

Knowledge of one or more programming languages: Scratch, Python, Java, C#, HTML/CSS, .NET MAUI ... Compensation & Hours * Part-time or Full-time (Flexible) * Competitive pay based on experience ...

iCode San Ramon

Be Seen First

Senior Instructor/Teacher (Seasonal/Summer/After-School)

San Ramon, CA · On-site

$25 - $30/hr

Knowledge of one or more programming languages: Scratch, Python, Java, C#, HTML/CSS, .NET MAUI ... Compensation & Hours * Part-time or Full-time (Flexible) * Competitive pay based on experience ...

We Vote

QA Automation Engineer - Volunteer

Oakland, CA · On-site +1

WeVote is building a movement of excellent, passionate, part-time volunteers (starting with the ... Java Script * Web Driver io * You want to work with an established and successful team. You are ...

New

Walmart

Staff, Machine Learning Engineer

Sunnyvale, CA · On-site

$130K - $260K/yr

... developer, and a passion for great customer-centric products. * Design, architect, build AI/ML ... End to end ownership of product using technologies such as Java , Node JS, React Js * You will be ...

Booz Allen Hamilton, Inc.

$112K - $257K/yr

... software engineering, product management, and software products * Experience with Java, Python ... Full-time and part-time employees working at least 20 hours a week on a regular basis are eligible ...

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All JobsJava Developer JobsPart Time Java Developer JobsPart Time Java Developer Jobs in California

Part Time Java Developer information

See California salary details

$15

$55

$76

How much do part time java developer jobs pay per hour?

As of Aug 22, 2026, the average hourly pay for part time java developer in California is $55.96, according to ZipRecruiter salary data. Most workers in this role earn between $48.41 and $62.64 per hour, depending on experience, location, and employer.

What does a part time Java developer do?

A Part Time Java Developer is responsible for designing, developing, and maintaining Java-based applications, but works fewer hours than a full-time developer. They may be involved in writing clean code, debugging, and collaborating with other team members to implement software solutions. Part-time roles are ideal for those seeking flexible work schedules while still contributing to software projects. These developers may work remotely or onsite and are often hired for specific projects or to help with peak workloads.

What are the key skills and qualifications needed to thrive as a part time Java developer, and why are they important?

To thrive as a Part Time Java Developer, you need solid proficiency in Java programming, knowledge of object-oriented design, and experience with software development practices, typically supported by a degree in computer science or relevant experience. Familiarity with integrated development environments (IDEs) like Eclipse or IntelliJ, version control systems such as Git, and frameworks like Spring Boot is often required. Strong time management, clear communication, and the ability to work independently help you excel in a part-time and often remote or distributed setting. These skills enable you to deliver high-quality code efficiently, collaborate effectively, and meet project deadlines despite a reduced work schedule.

How does working part time as a Java developer typically impact project involvement and team collaboration?

As a part-time Java Developer, you may be assigned to specific modules or tasks that fit within your available hours, rather than overseeing entire projects. This structure often requires clear communication with full-time team members to ensure smooth handoffs and progress updates. Collaboration is typically managed through tools like Slack, Jira, or daily stand-ups, allowing you to stay aligned with the team's goals despite a reduced schedule. While you might not be involved in every decision or meeting, your contributions remain integral, and strong organization skills will help you balance multiple priorities effectively.

Are part time Java developers still in demand?

Part-time Java developers remain in demand due to ongoing needs for software development, maintenance, and support across various industries. Skills in Java, along with familiarity with frameworks like Spring and tools such as Git, enhance employability in flexible or contract roles. The demand is influenced by industry trends toward remote work and project-based assignments.
More about Part Time Java Developer jobs

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

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For Part Time Java Developer jobs in California, the most frequently searched job titles are:

What job categories do people searching Part Time Java Developer jobs in California look for?

The top searched job categories for Part Time Java Developer jobs in California are:

What cities in California are hiring for Part Time Java Developer jobs?

Cities in California with the most Part Time Java Developer job openings:

Part Time Java Developer jobs near you
Infographic showing various Part Time Java Developer job openings in California as of August 2026, with employment types broken down into 100% Part Time. Highlights an 100% In-person job distribution, with an average salary of $116,387 per year, or $56 per hour.

Explainable AI Engineer

Brain Gain Recruiting

Palo Alto, CA • Remote

$122K - $165K/yr

Full-time, Part-time

Posted 4 days ago

Job description

Company Description

We’re an Industrial AI start-up founded by a Stanford professor and led by recognized leaders in Data Intelligence for Aerospace & Defense supply chain operations. Our Enterprise SaaS AI Application improves sustainment of the U.S. Air Force’s 5,000-aircraft fleet ($100B yearly budget). Having delivered $200M+ in cost avoidances, we are growing 4x in repeat contracts.

We have built and are operationally deploying hallucination-free Agentic AI for mission critical decision support that relies on proprietary Explainable AI engines for SME-explainable insights from existing data.

Job Description

We’re hiring an Explainable AI Engineer to build, verify, and validate business impact predictions based on outputs of our AI Engines. You’ll have an opportunity to learn from Stanford and Georgia Tech professors and work across algorithms and data pipelines to evolve our Explainable AI including

  • Development of Operations Research features for the AI models
  • Automation of data management towards scalability
  • Aerospace grade V&V for mission critical functions using simulations
  • Explainable AI engine interfaces to data, human users, and Agentic AI

Main Responsibilities:

  • Understand, develop, & support business impact prediction analytics in Explainable AI Engines
  • Build, evolve, verify, and validate data processing pipeline segments
  • Support scalable deployment of the AI
  • Integrate Explainable AI with LLM tools for Agentic AI experience
  • Collaborate with the cloud software team and occasionally with customers
  • Document Explainable AI for customer users and internal software developers
Qualifications

Must-haves

  • Experience building mission-critical analytical applications, working in a production environment
  • Hands-on skills in at least some of mathematical methods in:
    • Operations Research
    • Bayesian statistics
    • Monte Carlo analysis
    • Mathematical optimization
    • Decision and Control
  • Experience with MATLAB
  • Model-based development / simulation-based verification
  • Solid experience writing technical documentation
  • Strong collaboration and communication skills; experience working with a software team
  • Graduate Degree in Engineering or a related field
  • U.S. Citizenship.

Pluses

  • Supply chain and/ or sustainment in the aerospace industry
  • Experience with Java and GitHub (Actions)
  • Building SaaS applications
  • Experience with GenAI and LLM augmentation (RAG)
  • PhD

Additional Information
  • US Citizenship Required: This position requires the ability to work with Controlled Unclassified Information for the Department of Defense.
  • A background check and a drug check may be required.
  • Location: This is a remote position. USA, Nationwide.
  • You will have an opportunity to start as a contractor (preferred; full-time or part-time, at least 10 hours/ week), or a full-time employee.