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Java Application Developer Jobs in Ontario, CA (NOW HIRING)

Sapsol Technologies Inc

Golang Developer

Brea, CA · On-site

AWS Greengrass and IoT Core Engineer with Golang. Experience : Relevant experience of 10+ Years ... Proficiency in Java, Node.js/GoLang for edge application development. Collaborate with embedded ...

Sapsol Technologies Inc

Golang Developer

Brea, CA · On-site

... in Java, Node.js/GoLang for edge application development. • Collaborate with embedded systems ... Engineering, or related field. • Aerospace Domain experience will be highly preferred though not ...

ConsumerDirect, Inc.

Software Developer II

Irvine, CA · On-site

$135K - $170K/yr

Job duties: * Develop, test, and maintain software using Java and Spring-based technologies ... Troubleshoot and resolve application and production issues * Consistently deliver assigned tasks in ...

ConsumerDirect, Inc.

Software Developer II

Irvine, CA

$135K - $170K/yr

Job duties: * Develop, test, and maintain software using Java and Spring-based technologies ... Troubleshoot and resolve application and production issues * Consistently deliver assigned tasks in ...

Marissa Letendre

Web Software Engineer

Lake Forest, CA · On-site

... an experienced Java web developer with strong knowledge in web-based Java technologies (JSPs, MVC, Web-services) to assist in the implementation and support of the e-commerce web application ...

Marissa Letendre

Web Software Engineer

Lake Forest, CA · On-site

... an experienced Java web developer with strong knowledge in web-based Java technologies (JSPs, MVC, Web-services) to assist in the implementation and support of the e-commerce web application ...

VSolvit

SOFTWARE DEVELOPER (FULL STACK)

Norco, CA · On-site

$110K - $165K/yr

NET, Java) * Familiarity with cloud platforms such as AWS, Azure, or Google Cloud for application ... Understanding of CI/CD pipelines and DevOps practices * Experience working with microservices ...

VSolvit

FULL STACK SOFTWARE DEVELOPER

Norco, CA · On-site

$105K - $165K/yr

NET, Java) * Familiarity with cloud platforms such as AWS, Azure, or Google Cloud for application ... Understanding of CI/CD pipelines and DevOps practices * Experience working with microservices ...

idexcel

Senior Software Engineer

Irvine, CA · On-site

$131K - $173K/yr

Summary: Sr. software engineer with experience of at least 5 years in developing software ... years' experience with application development in C++ and Java 2+ years' Android development ...

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All JobsJava Application Developer JobsJava Application Developer Jobs in Ontario, CA

Java Application Developer information

See Ontario, CA salary details

$25

$59

$86

How much do java application developer jobs pay per hour?

As of Jul 9, 2026, the average hourly pay for java application developer in Ontario, CA is $59.45, according to ZipRecruiter salary data. Most workers in this role earn between $48.89 and $70.43 per hour, depending on experience, location, and employer.

What is the difference between Java Application Developer vs Java Software Engineer?

AspectJava Application DeveloperJava Software Engineer
Required CredentialsBachelor's in Computer Science or related field, Java certificationsBachelor's in Computer Science or related field, Java certifications
Work EnvironmentDevelops, tests, and maintains Java applicationsDesigns and implements Java-based solutions, often involved in architecture
Employer & Industry UsageTech companies, software firms, enterprise applicationsTech firms, consulting, enterprise software development
Common Search & ComparisonFocuses on application development tasksBroader role including system design and architecture

Java Application Developers primarily focus on building, testing, and maintaining Java applications, while Java Software Engineers often have a broader role involving system design and architecture. Both roles require similar credentials and are used across tech and enterprise industries, but their day-to-day responsibilities differ slightly.

What are some common challenges Java Application Developers face when working on large-scale enterprise projects?

Java Application Developers working on large-scale enterprise projects often encounter challenges such as managing complex codebases, ensuring application scalability, and maintaining robust security practices. Coordinating with cross-functional teams like QA, DevOps, and UI/UX can also present integration and communication hurdles. Staying up-to-date with evolving Java frameworks and best practices is essential to address performance bottlenecks and optimize application efficiency. Proactive problem-solving and effective collaboration are key to overcoming these challenges.

What does a Java Application Developer do?

A Java Application Developer designs, develops, and maintains software applications using the Java programming language. They are responsible for writing clean, efficient code, debugging and resolving technical issues, and collaborating with other developers, designers, and stakeholders to ensure applications meet user needs. Java Application Developers often work on both frontend and backend components, integrate databases, and ensure the security and scalability of applications. They may also participate in code reviews, testing, and documentation throughout the software development lifecycle.

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

To thrive as a Java Application Developer, you need strong proficiency in Java programming, object-oriented design, and a solid understanding of software development principles, typically supported by a degree in computer science or a related field. Familiarity with frameworks like Spring or Hibernate, version control systems such as Git, and experience with build tools and IDEs are highly valued, and certifications like Oracle Certified Professional Java Programmer can be advantageous. Excellent problem-solving abilities, effective communication, and strong teamwork skills set top developers apart. These competencies ensure the delivery of robust, maintainable applications and facilitate collaboration in dynamic development environments.
What job categories do people searching Java Application Developer jobs in Ontario, CA look for? The top searched job categories for Java Application Developer jobs in Ontario, CA are:
What cities near Ontario, CA are hiring for Java Application Developer jobs? Cities near Ontario, CA with the most Java Application Developer job openings:
Java Application Developer jobs near you
Golang Developer

Golang Developer

Sapsol Technologies Inc

Brea, CA • On-site

Contractor

Re-posted 14 days ago

Job description

Must have: AWS Greengrass and IoT Core Engineer with Golang.

            Experience : Relevant experience of 10+ Years

            Design and implement edge computing solutions using AWS Greengrass v2.

            Integrate AWS IoT Core for secure device connectivity, telemetry ingestion, and rule-based data routing.

            Develop and deploy Lambda functions and containerized applications on edge devices.

            Proficiency in Java, Node.js/GoLang for edge application development.

            Collaborate with embedded systems teams to ensure seamless integration with hardware.

            Implement secure communication protocols (MQTT, TLS) and manage device authentication and authorization.

            Monitor and troubleshoot IoT device fleets using AWS IoT Device Management and CloudWatch.

            Optimize data flow between edge and cloud for latency-sensitive applications.

            Participate in architecture reviews, code reviews, and system testing.

            Hands-on experience with AWS Greengrass, AWS IoT Core, and Lambda.

            Bachelor's or Master's degree in Computer Science, Electrical Engineering, or related field.

            Aerospace Domain experience will be highly preferred though not mandatory.

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