ZipRecruiter

Log In

1

Java Api Developer Jobs in California (NOW HIRING)

Sonsoft Inc

Fuse Developer

Walnut Creek, CA

... either Java/Spring or Node.js * Understanding of differences between SOA and API design ... Exposure to DevOps. * Analytical skills * Experience and desire to work in a Global delivery ...

Tranzeal Incorporated

CPI Developer

Santa Clara, CA · On-site

... Java is required. • Deep understanding of integration patterns, API management, and designing flows between SAP and non-SAP systems. • Experience implementing security protocols using OAuth ...

Login Consulting Services Inc.

Java Developer

Pasadena, CA

$55.75 - $72/hr

Strong knowledge of the Java programming language, with hands-on experience in core Java 8-17+ features including lambda expressions, stream API, Optional API etc. for writing cleaner, null-safe code.

Login Consulting Services, Inc.

Java Developer

Pasadena, CA

$55.75 - $72/hr

Strong knowledge of the Java programming language, with hands-on experience in core Java 8-17+ features including lambda expressions, stream API, Optional API etc. for writing cleaner, null-safe code.

Login Consulting Services, Inc.

Java Developer

Pasadena, CA · On-site

$55.75 - $72/hr

Strong knowledge of the Java programming language, with hands-on experience in core Java 8-17+ features including lambda expressions, stream API, Optional API etc. for writing cleaner, null-safe code.

Compunnel

Java Developer

Pasadena, CA · On-site

$55.75 - $72/hr

Strong knowledge of the Java programming language, with hands-on experience in core Java 8-17+ features including lambda expressions, stream API, Optional API etc. for writing cleaner, null-safe code.

Login Consulting Services, Inc.

Java Developer

Pasadena, CA · On-site

$55.75 - $72/hr

Strong knowledge of the Java programming language, with hands-on experience in core Java 8-17+ features including lambda expressions, stream API, Optional API etc. for writing cleaner, null-safe code.

Jobsbridge

Lead Android Engineer

Los Angeles, CA

Be core part of the engineering team, be proud of your work - what you deliver has direct impact on ... Qualifications Android, SDK, Java, API, HTTP, REST, LAMP Additional Information Multiple Openings

Procom Consultants Group

Java Developer

Santa Clara, CA · On-site

$60 - $77.50/hr

Java Developer Job Details * Implementing a solution to secure workloads in virtualized datacenters ... RESTful API server/client development. * Experience with Tomcat, Spring, Hibernate, SQL and other ...

TMS

Java Tech Lead with AWS API Gateway Exp

Irvine, CA · On-site

$70 - $75/hr

Java, AWS API Gateway, RESTful APIs, Microservices Architecture, DevOps, CI/CD, Agile. Job Summary Seeking a Senior Specialist with 12 to 15 years of experience in Java and AWS API Gateway to design ...

CONFIDENTIAL

Be Seen First

HYBRID - Java Developer

Pasadena, CA · On-site

$60 - $75/hr

Strong knowledge of the Java programming language, with hands-on experience in core Java 8-17+ features including lambda expressions, stream API, Optional API etc. for writing cleaner, null-safe code ...

New

next page

Showing results 1-20

All JobsJava Api Developer JobsJava Api Developer Jobs in California

Java Api Developer information

See California salary details

$15

$55

$76

How much do java api developer jobs pay per hour?

As of Jul 12, 2026, the average hourly pay for java api 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 are some common challenges Java API Developers face when integrating APIs with legacy systems?

Java API Developers often encounter challenges when connecting modern APIs to legacy systems, such as dealing with outdated protocols, inconsistent data formats, and limited documentation. Overcoming these issues usually requires careful planning, thorough testing, and sometimes the development of custom adapters or middleware. Working closely with system architects and stakeholders is essential to ensure compatibility and minimize disruptions, while maintaining security and performance standards.

What are Java API Developers?

Java API Developers are software engineers who specialize in designing, building, and maintaining Application Programming Interfaces (APIs) using the Java programming language. They create backend services that allow different software applications to communicate with each other, ensuring data is exchanged efficiently and securely. Their responsibilities often include writing clean code, testing API endpoints, integrating third-party services, and maintaining documentation. Java API Developers also work closely with frontend developers, QA testers, and other stakeholders to deliver robust and scalable solutions.

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

To thrive as a Java API Developer, you need strong proficiency in Java programming, RESTful API design, and a solid understanding of software development principles, often supported by a degree in computer science or related experience. Familiarity with frameworks like Spring Boot, tools such as Postman, and version control systems like Git are typically required, along with relevant certifications (e.g., Oracle Certified Java Programmer). Excellent problem-solving skills, attention to detail, and effective communication help developers collaborate with teams and translate business requirements into functional APIs. These competencies ensure robust, scalable, and maintainable API solutions that drive business applications forward.

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

AspectJava Api DeveloperJava Software Engineer
Required CredentialsBachelor's in Computer Science, Java certificationsBachelor's in Computer Science, Java certifications
Work EnvironmentDevelops and maintains APIs, collaborates with backend teamsDesigns, develops, and maintains Java applications, including APIs
Employer & Industry UsageTech companies, startups, enterprise softwareTech firms, financial services, software development companies
Common Search & ComparisonOften compared for API-specific rolesBroader Java development roles

Java Api Developers focus specifically on creating and maintaining APIs, working closely with backend systems. Java Software Engineers have a broader scope, designing and developing entire Java applications, including APIs. Both roles require similar credentials and are common in tech industries, but their focus areas differ.

What are popular job titles related to Java Api Developer jobs in California? For Java Api Developer jobs in California, the most frequently searched job titles are:
What job categories do people searching Java Api Developer jobs in California look for? The top searched job categories for Java Api Developer jobs in California are:
Java Api Developer jobs near you
Infographic showing various Java Api Developer job openings in California as of July 2026, with employment types broken down into 74% Full Time, and 26% Contract. Highlights an 95% In-person, and 5% Remote job distribution, with an average salary of $116,387 per year, or $56 per hour.
Sr. Software Engineer / Java / C++ / API / embedded / POS or Payment Processing / Irvine

Sr. Software Engineer / Java / C++ / API / embedded / POS or Payment Processing / Irvine

Motion Recruitment

Irvine, CA • On-site

$133K - $174K/yr

Other

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 12 days ago

Job description

Our client in the EV/AV space is urgently looking for a Sr. Software engineer with strong experience in Java, API, Integration, Payment processing or POS, and UI and embedded systems to add to their growing team here in Irvine.
This position MUST be onsite 5 Days a week in their Irvin Location 
The Embedded Software engineer is responsible for designing, implementing, testing, and maintaining software for embedded systems. This role requires a deep understanding of both embedded and software to ensure that the software effectively controls firmware components and performs as required. The embedded engineer will work closely with firmware engineers, software developers, and other team members to create reliable and efficient firmware solutions.
Responsibilities:
1. Development:
  • Design and develop software for embedded systems based on system requirements and specifications
  • Write and optimize code in low-level programming languages such as Java and some C++
  •  Implement and test firmware features to ensure they meet design specifications and performance criteria
  • Develop test suites for verification
  • Automate test cases
2. Integration:
  • Collaborate with embedded engineers to understand firmware architecture and ensure software effectively interfaces with firmware components
  • Debug and troubleshoot issues related to firmware interaction
3. Testing and Validation:
  • Develop and execute test plans to validate firmware functionality and performance
  • Perform unit testing, integration testing, and system-level testing to identify and resolve issues
  • Analyze and address bugs and performance issues and make necessary adjustments to improve firmware quality
4. Documentation and Reporting:
  • Create and maintain detailed documentation for firmware design, development processes, and testing procedures
  • Provide regular updates and reports on project status, including any issues, risks, and resolutions
6. Collaboration and Communication:
  • Work closely with cross-functional teams, including hardware engineers, software developers, and product managers, to ensure successful integration of firmware with other system components
  • Participate in design reviews, code reviews, and team meetings to contribute to project planning and execution
Qualifications: Skills and Technologies
· Education: Bachelor’s or Master’s degree in Computer Engineering, Electrical Engineering, Computer Science, or a related field
· Experience: Proven experience in Software development for embedded systems, including hands-on experience with API Integrations, processors, and peripheral interfaces
· Skills:
  • Strong Proficiency in Java
  • Strong understanding of software and embedded systems architecture,
  • Strong Understanding of API Integration
  • Experience within backend payment processing, POS systems and Payment devices
  • Experience with UI layers
  • Experience with debugging tools and techniques for embedded systems.
  • Familiarity with version control systems such as Git, Jira and Docker
  • Familiarity with scripting
  • Familiarity with building tools
·Desired Skills:
  • C++ is a Major bonus
  • Cloud - nice to have, especially with OTA updates and integration with backends
  • Familiarity with mobile payment systems
  • Exposure within the EV/AV Auto industry
Offer
  • 135-150K Base
  • Medical, Dental, Vision, Life Insurance, Short / Long term Disability
  • 100 % match, 401K Retirement Plan
  • Vacation and Sick Time
  • 11 Holiday Pay

Apply