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Junior Java Software Engineer Jobs in Fullerton, CA

Orvixengr

Software Engineer

Los Angeles, CA · On-site

Provide technical guidance and mentorship to junior engineers, fostering a collaborative and ... Proficiency in programming languages such as Java, Python, C#, JavaScript, or similar (with ...

FLIGHTSTORY

Junior Software Engineer

Los Angeles, CA

$95K/yr

JUNIOR SOFTWARE ENGINEER COMPANY : STEVEN.COM REPORTING TO : VP of ENGINEERING LOCATION: LOS ANGELES SALARY: UP TO $95K ABOUT STEVEN.COM Steven.com is building the operating system for the creator ...

FlightStory

Junior Software Engineer

Los Angeles, CA · On-site

$95K/yr

JUNIOR SOFTWARE ENGINEER COMPANY : STEVEN.COM REPORTING TO : VP of ENGINEERING LOCATION: LOS ANGELES SALARY: UP TO $95K ABOUT STEVEN.COM Steven.com is building the operating system for the creator ...

CEVIANS LLC

Software Engineer (Jr./Sr.)

Costa Mesa, CA · On-site

$90 - $120/hr

Bachelor's degree in electrical or software engineering * Minimum of two (2) years of experience for the junior engineer position * Minimum of ten (10) years of experience for the senior engineer ...

Paramount

Software Engineer (Java) in Test

Burbank, CA · On-site

Software Engineer (Java) in Test Team : Global Quality Engineering Location : New York City, Los Angeles, San Francisco Overview Paramount Skydance Corp. is seeking a Software Engineer in Test to ...

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All JobsJava Software Engineer JobsJunior Java Software Engineer JobsJunior Java Software Engineer Jobs in Fullerton, CA

Junior Java Software Engineer information

See Fullerton, CA salary details

$63.6K

$111.5K

$168K

How much do junior java software engineer jobs pay per year?

As of Aug 24, 2026, the average yearly pay for junior java software engineer in Fullerton, CA is $111,450.00, according to ZipRecruiter salary data. Most workers in this role earn between $78,800.00 and $111,100.00 per year, depending on experience, location, and employer.

What does a junior Java software engineer do?

A Junior Java Software Engineer is typically responsible for assisting in the development, testing, and maintenance of software applications using the Java programming language. They work under the guidance of more experienced engineers to write code, fix bugs, and contribute to team projects. Junior engineers also learn best practices in software development, participate in code reviews, and continuously improve their technical skills. Their role often includes collaborating with other developers, designers, and quality assurance teams to deliver high-quality software solutions.

What kinds of projects or tasks can a junior Java software engineer expect to work on during their first year?

As a Junior Java Software Engineer, you can expect to work on tasks such as fixing bugs, writing unit tests, and developing small features under the guidance of more experienced team members. You'll likely contribute to code reviews, participate in daily stand-ups, and collaborate closely with QA engineers and front-end developers. Over time, you may gradually take on more complex assignments, such as designing modules or integrating third-party APIs. This hands-on experience helps build your technical skills and deepen your understanding of the software development lifecycle.

What are the key skills and qualifications needed to thrive as a junior Java software engineer, and why are they important?

To thrive as a Junior Java Software Engineer, you need a solid understanding of Java programming, object-oriented principles, data structures, and typically a bachelor’s degree in computer science or a related field. Familiarity with version control systems like Git, build tools such as Maven or Gradle, and experience with IDEs like IntelliJ IDEA or Eclipse are common technical requirements. Strong problem-solving, eagerness to learn, and effective teamwork are standout soft skills in this role. These skills ensure you can write reliable code, collaborate efficiently, and adapt to evolving technical challenges in software development projects.

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

AspectJunior Java Software EngineerJava Developer
Required CredentialsTypically a bachelor's degree in Computer Science or related field; some certifications like Oracle Java CertificationSimilar credentials; often holds Java certifications and a degree in a related field
Work EnvironmentEntry-level position in development teams, often under supervision, focusing on coding and testingCan be entry to mid-level, involved in designing, coding, and maintaining Java applications
Employer & Industry UsageUsed across tech companies, startups, and corporate IT departmentsCommonly used in software development firms, tech companies, and enterprise environments

While both roles involve Java programming, a Junior Java Software Engineer typically focuses on learning and supporting development tasks under supervision, whereas a Java Developer may have more responsibility in designing and implementing Java applications. The roles often overlap, but the engineer role emphasizes entry-level growth, while the developer role can involve more independent work.

What are popular job titles related to Junior Java Software Engineer jobs in Fullerton, CA?

For Junior Java Software Engineer jobs in Fullerton, CA, the most frequently searched job titles are:

What job categories do people searching Junior Java Software Engineer jobs in Fullerton, CA look for?

The top searched job categories for Junior Java Software Engineer jobs in Fullerton, CA are:

What cities near Fullerton, CA are hiring for Junior Java Software Engineer jobs?

Cities near Fullerton, CA with the most Junior Java Software Engineer job openings:

Junior Java Software Engineer jobs near you

Senior Software Engineer - Java & Payment Technologies

Motion Recruitment Partners, LLC

Irvine, CA • On-site

$135K - $150K/yr

Other

Medical, Dental, Vision, Life, Retirement, PTO

Posted 22 days ago

Job description

Senior Software Engineer - Java & Payment Technologies
Our client, a fast-growing company within the EV/AV (Electric & Autonomous Vehicle) industry, is looking to add a Senior Software Engineer to their team in Irvine, CA. They're seeking someone with strong experience in Java development, API integrations, embedded systems, payment processing/POS solutions, and UI development.
Please note: This is a fully onsite position requiring attendance 5 days per week at the Irvine office.
This role offers the opportunity to work on innovative embedded technologies that support next-generation payment and vehicle solutions. The ideal candidate will have a strong software engineering background with experience developing applications that interact with firmware, payment devices, backend services, and user-facing interfaces. You'll collaborate with engineers across hardware, firmware, and software teams to build scalable, reliable, and high-performance solutions.
Required Skills & Experience
  • Bachelor's or Master's degree in Computer Science, Computer Engineering, Electrical Engineering, or a related field
  • Experience developing software for embedded systems
  • Strong Java programming skills
  • Experience building and supporting API integrations
  • Solid understanding of embedded systems and software architecture
  • Experience working with processors and peripheral interfaces
  • Background supporting payment processing platforms, POS systems, and payment devices
  • Experience with UI-layer development
  • Strong debugging and troubleshooting skills in embedded environments
  • Familiarity with Git, Jira, and Docker
  • Experience with scripting and automation
  • Knowledge of build tools and software deployment processes
Desired Skills & Experience
  • C++ experience is highly preferred
  • Exposure to cloud-based environments, particularly OTA (Over-the-Air) updates and backend integrations
  • Familiarity with mobile payment technologies
  • Prior experience in the EV, AV, or automotive industry
What You Will Be Doing
Tech Breakdown
  • Java Development
  • API Integration
  • Payment Processing & POS Systems
  • User Interface Development
  • Firmware & Software Integration
  • Test Automation
  • Git, Jira, Docker
  • Cloud Technologies (Nice to Have)
  • C++ (Preferred)
Daily Responsibilities
  • Design, develop, and maintain software applications for embedded systems
  • Write and optimize Java-based code while contributing to C++ development efforts when needed
  • Implement, validate, and support firmware-related functionality
  • Create verification suites and automate test cases
  • Partner with firmware and embedded engineering teams to ensure effective system integration
  • Debug and troubleshoot software-to-firmware communication issues
  • Develop and execute unit, integration, and system-level testing
  • Analyze and resolve software defects, performance issues, and system bottlenecks
  • Maintain development and testing documentation
  • Provide project updates and communicate technical risks, issues, and resolutions
  • Collaborate with hardware engineers, software developers, and product managers throughout the development lifecycle
  • Participate in architecture discussions, design reviews, and code reviews
The Offer
Base Salary: $135,000 - $150,000
Benefits
  • Medical, Dental, Vision, and Life Insurance
  • Short-Term & Long-Term Disability Coverage
  • 401(k) with 100% Company Match
  • Paid Vacation and Sick Time
  • 11 Paid Holidays
Applicants must be authorized to work in the United States on a full-time basis now and in the future.

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