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

1 point system

Java Developer

Irvine, CA · On-site

$54.75 - $70.75/hr

Develop backend services and APIs using Java-based frameworks * Build and enhance frontend ... Strong communicator who collaborates well with senior engineers and stakeholders

SmartIPlace

Sr. Java and .NET Developer

Santa Ana, CA · On-site

$59.50 - $76/hr

Job Title: Sr. Java and .NET Developer Location: Santa Ana, CA Requirement Knowledge, Skills, Abilities? Strong knowledge of enterprise software development principles, object-oriented design, and ...

Jobsbridge

Senior Java developers

Irvine, CA

$61.50 - $78.25/hr

... Java connectors Excellent communication skills Selected candidates will be trained in the field of application access-control and indentity management. Qualifications J2EE,Servlets, JSP, EJB, JMS ...

Xforia, Inc.

Backend Java Developer

San Dimas, CA · On-site

$50.50 - $65.50/hr

* Strong experience with Java, J2EE and Multi-Threading • Experience with spring and Spring Boot. • Strong Data Structures + Concurrency. • Experience in raising cases, data accuracy , high ...

idexcel

ATG Developer

Irvine, CA

Able to develop Java, j2ee solutions including UI web presentation skills ? Assists the lead ... Yes Additional Information Thanks & Regards, SR.IT Recruiter Dhamotharan 571-267-4164

Btisolutions

Full stack Developer (Java)

Santa Ana, CA · On-site

$80K - $90K/yr

Full stack Developer (Java) Responsibilities: * System design and development for various projects, service request related to Cello system * Provide first tier system support for daily operations of ...

cyberThink, Inc.

Java Full stack Developer

Santa Ana, CA · On-site

$54.75 - $70.50/hr

Java (Spring Framework), MyBatis, DB2, PostgreSQL Data modeling (logical/physical) Utilization of DevOps/Agile methodology and related tools TDD (Test Driven Development) experience Warehouse ...

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All JobsJava Developer JobsSenior Java Developer JobsSenior Java Developer Jobs in Ontario, CA

Senior Java Developer information

See Ontario, CA salary details

$11

$63

$87

How much do senior java developer jobs pay per hour?

As of Sep 1, 2026, the average hourly pay for senior java developer in Ontario, CA is $63.92, according to ZipRecruiter salary data. Most workers in this role earn between $56.01 and $71.39 per hour, depending on experience, location, and employer.

What is a senior Java developer?

Senior Java Developers are experienced software engineers who specialize in using the Java programming language to design, develop, and maintain complex applications. They typically lead development teams, oversee project architecture, and ensure code quality through best practices. In addition to strong coding skills, they often mentor junior developers and collaborate with stakeholders to deliver robust software solutions. Their expertise is crucial in building scalable, high-performance applications across various industries.

What are the key skills and qualifications needed to thrive as a senior Java developer?

To thrive as a Senior Java Developer, you need advanced proficiency in Java programming, experience with software design patterns, and a strong grasp of backend development, often supported by a degree in computer science or related field. Familiarity with frameworks like Spring, build tools such as Maven or Gradle, and version control systems like Git, as well as knowledge of cloud platforms, is typically required. Excellent problem-solving, leadership, and communication skills help you guide teams and collaborate effectively. These competencies are crucial for delivering robust, scalable software solutions and driving technical success within development teams.

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

Senior Java Developers often encounter challenges such as maintaining code quality across large codebases, managing dependencies between modules, and ensuring optimal application performance. Collaborating with cross-functional teams—including QA, DevOps, and product management—requires clear communication and effective problem-solving. Additionally, staying updated with the latest Java frameworks and best practices is essential for delivering scalable and maintainable solutions in complex enterprise environments.

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

AspectSenior Java DeveloperJava Software Engineer
Required CredentialsBachelor's in CS or related, Java certifications often preferredBachelor's in CS or related, Java certifications beneficial
Work EnvironmentTeam lead roles, project management, mentoringDevelopment-focused, coding, testing, and implementation
Employer & Industry UsageTech companies, finance, e-commerceSoftware firms, startups, enterprise IT
Common Search & ComparisonOften compared for experience level and responsibilitiesSimilar roles with slight variations in scope

The main difference between a Senior Java Developer and a Java Software Engineer lies in their responsibilities and experience. Senior Java Developers typically take on leadership, mentoring, and project management roles, while Java Software Engineers focus more on coding, development, and technical implementation. Both roles require strong Java skills and relevant credentials, but the Senior Java Developer usually has more experience and a broader scope of responsibilities.

What are the most commonly searched types of Java Developer jobs in Ontario, CA?

The most popular types of Java Developer jobs in Ontario, CA are:

What are popular job titles related to Senior Java Developer jobs in Ontario, CA?

For Senior Java Developer jobs in Ontario, CA, the most frequently searched job titles are:

What job categories do people searching Senior Java Developer jobs in Ontario, CA look for?

The top searched job categories for Senior Java Developer jobs in Ontario, CA are:

What cities near Ontario, CA are hiring for Senior Java Developer jobs?

Cities near Ontario, CA with the most Senior Java Developer job openings:

Senior Java Developer jobs near you
Infographic showing various Senior Java Developer job openings in Ontario, CA as of August 2026, with employment types broken down into 84% Full Time, 2% Part Time, and 14% Contract. Highlights an 80% Physical, 6% Hybrid, and 14% Remote job distribution, with an average salary of $132,960 per year, or $63.9 per hour.

Java Developer (CCDI Operations / Backend) (Mid/Sr. Level) - Bilingual in Korean/English

SBT Global, Inc.

Irvine, CA • On-site

Contractor

Posted 18 days ago

Job description

Company Description

Mid/Sr. Java Developer (CCDI Operations / Backend)

  • On-site role (Mandatory)
  • Contract position (Start: July, Minimum 1 year)
  • Compensation: $100K+ DOE

Position Overview

We are seeking Mid-Level Backend Developers to support CCDI operations and development.
This role involves CI/CD management, MSA-based deployments, backend development, data processing, Kafka-based event streaming, and database integration/migration work.

Strong English communication skills are required. 

Must be Bilingual in Korean/English

          Job Description
          • Manage and operate CI/CD pipelines (Kubernetes, MSA deployment & release management)
          • CCDI core backend development and system enhancements
          • Backend development using Java / Python
          • Database integration with PG, Oracle, MongoDB, and Redis
          • Kafka event streaming (consumer/producer development and optimization)
          • MongoDB batch processing (data deletion, legacy data migration)
          • Support EAI and database migration (BLODS, PKTMS, TODS)
          • Support Informatica migration activities
          • Provide production on-call support (average 10.8 hours/day operational coverage)
          • System monitoring, incident response, and KUS VOC support
          • Code review and QA governance
          • Additional system integration/support tasks (MQTT, ISS, JP, etc.)
          Qualifications
          • Experience in Java / Python development
          • Experience with Oracle, MongoDB, Redis, and PG database integration
          • Experience with Kubernetes and CI/CD environments
          • Experience with MSA-based systems
          • Backend development and production support experience
          • Strong English communication skills (required)

          Preferred Qualifications

          • Experience in large-scale enterprise system operations
          • Experience with database or legacy system migration
          • Experience with Kafka-based event streaming
          • Experience with EAI or Informatica migration
          • Experience in production support or 24/7 environments

          Additional Information

          All your information will be kept confidential according to EEO guidelines.

          Apply