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Java Api Developer Jobs in California (NOW HIRING)

CYNET SYSTEMS

Java AI Developer

Palo Alto, CA · On-site

$53 - $57/hr

Seeking a Java AI Developer with strong programming skills and experience in cloud services to ... Understanding of microservices, event-driven architectures, and RESTful API design. * Experience ...

WorkNova LLC

Java Developer

Fremont, CA · On-site

$55.75 - $72.25/hr

Java Developer Location: Onsite Duration: 6+ months Details: * Full-Stack Desktop Development ... Backend & API Design: Developing secure RESTful APIs and microservices leveraging Node.js , Python ...

Programmers.io

Java Kubernetes Admin

Sunnyvale, CA · On-site

$59.75 - $77.50/hr

... Microservices, Rest API , Apache Kafka Terraform, Ansible, Helm Secondary Skill: Docker/Container • Technical expertise in object-oriented programming (Java/J2EE) and proficiency in ...

Sonsoft Inc

Java/J2EE Developer

Foster City, CA · On-site

$59.50 - $77/hr

At least 4 years of experience in Java object oriented design API development using Java, REST ... Be able to do complex designs and follow the best engineering practices.. * Good written skills and ...

Sonsoft Inc

Java/J2EE Developer

Foster City, CA · On-site

$59.50 - $77/hr

At least 3 years of experience in Java object oriented design API development using Java, REST ... Be able to do complex designs and follow the best engineering practi * Qualifications Basic ...

QuinStreet

Java Developer

Foster City, CA · On-site

$140K - $160K/yr

QuinStreet, Inc. seeks Java Developer in Foster City, CA. Duties: Developing new functionality to ... Providing support and deployment of backend API-s, coding, unit testing and general quality ...

Jobsbridge

Senior JAVA Lead

Cupertino, CA

Senior Software Engineer /Lead with hands on JAVA development with REST API Senior developer with experience development of highly scalable, low latency application and good in data structures, Java ...

Sonsoft Inc

Java /J2EE Developer

Foster City, CA · On-site

$59.50 - $77/hr

At least 4 years of experience in Java object oriented design API development using Java, REST ... Be able to do complex designs and follow the best engineering practices Good written an d verbal ...

Sonsoft Inc

Java/J2EE Developer

Foster City, CA · On-site

$59.50 - $77/hr

At least 4 years of experience in Java object oriented design API development using Java, REST ... Be able to do complex designs and follow the best engineering practices * Good written and verbal ...

TestingXperts

Java J2EE Developer

San Jose, CA · On-site

Java J2EE Server Side Developer (contract w2 or Self Incorporated Only) Work Location: San Jose, CA ... API + Experience with certificates (FIDO), SSL, HTTPS , encryption, decryption Additional ...

Kivyo Inc

Java Full Stack Developer

Irvine, CA

$56.25 - $72.75/hr

Java Full Stack developer 12+month of contract Charlotte/ Irvine Must have :- Java full-stack and ... Hands-on experience with AWS services such as EC2, S3, Lambda, ECS, EKS, RDS, CloudWatch, and API ...

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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.

Java Fullstack Developer

Rootshell Enterprise Technologies, Inc.

Santa Clara, CA • On-site

$61.75 - $79.50/hr

Full-time

Re-posted 21 days ago

Job description

Greetings from Rootshell Inc,
We have an urgent requirement on Java Fullstack Developer at Santa Clara, CA with one of our customer..
Role: Java Fullstack Developer,
Location: Santa Clara, CA
Duration: Long Term
Development and maintenance custom web/mobile applications and API's using Java, Play Framework, REST API.
Create server-side functionality using asynchronous, highly scalable design principles.
Take responsibility for feature-focused unit and system testing
Contribute to performance and load testing procedures and issue remediation.
Skills: • Minimum 4 years of experience in using open source components including Hibernate, Spring Framework, Spring model-view-controller (MVC), log4j to create complex software solutions
Minimum 4 years of experience in front end development like JavaScript, HTML5, HTML, jQuery, JSP, CSS, JSON, AJAX, NodeJS and Angular JS
Minimum 3 year experience on PL/SQL, Oracle, Spring boot
Thanks & Regards,
Satish.K

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