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Java Api Developer Jobs in California (NOW HIRING)

Jobsbridge

Lead Android Engineer

Los Angeles, CA · On-site

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

Medclinicx

Java Developer

San Francisco, CA · On-site

$120 - $180/hr

Job Overview We are seeking a Java Developer to design, develop, and maintain backend services and ... Understanding of microservices architecture & RESTful API standards. * Knowledge of relational ...

Triunity Software, Inc.

Java Developer

Los Angeles, CA · On-site

$90 - $130/hr

Triunity Software is looking for a talented Java Developer to join our growing team in Saxonburg ... Experience with RESTful API design and web services integration * Solid understanding of object ...

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 ...

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 ...

1 point system

Backend Java Developer

Pasadena, CA · On-site

$55 - $71.50/hr

... API development, microservices architecture, and event-driven architecture. · - Hands-on ... Java Developer with a strong emphasis on back-end technologies. The ideal candidate will have ...

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

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

Sonsoft Inc

Java/J2EE Developer

Foster City, CA

$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

$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 ...

Jobsbridge

Java with Angular JS Developer

Mountain View, CA · On-site

$62 - $80/hr

Strong experience with REST API and web services Good experience developing in AngularJS framework ... object oriented programming (OOP) Good experience with Java, Spring, J2EE (5+ years) Strong ...

Jobsbridge

Senior JAVA Lead

Cupertino, CA · On-site

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 ...

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Java Api Developer information

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How much do java api developer jobs pay per hour?

As of Aug 22, 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 is a Java API developer?

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 skills and qualifications are needed to thrive as a Java API developer?

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 are 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 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 August 2026, with employment types broken down into 85% Full Time, 2% Part Time, and 13% Contract. Highlights an 80% Physical, 6% Hybrid, and 14% Remote job distribution, with an average salary of $116,387 per year, or $56 per hour.

Sr Java Engineer - No C2C - USC/GC Only

ObjectWin Technology, Inc.

Sunnyvale, CA • On-site

$147K - $193K/yr

Contractor

Re-posted 13 days ago

Job description

Company Description
ObjectWin provides global workforce solutions to meet current and future business demands of our customers. Our services include, various workforce solutions, SOW based projects and fulltime resource deployments. We serve our customers both nationally and globally.
Job Description
  • Job Title: Sr Java Engineer
  • Duration: 6 Months
  • Job Location: Sunnyvale, CA, 94089

No Remote, No C2C - USC/GC holders only
Job Responsibilities:
  • Develop and extend key financial technology and features of our product using Java
  • Develop and maintain Java API's and REST APIs
  • Define and develop the application and systems architectures for solutions to deep domain engineering problems
  • Lead the collaboration with Financial Research and Product Marketing in analyzing the financial domain requirements
  • Collaborate with Financial Research in investigating and articulating the financial algorithms that drive the forecast, advice, and analysis functionality in Financial Engines' products
  • Analyze the user experience and develop the algorithms that take the information collected in the user experience and transform them into inputs that are understood by the financial algorithms -- "the models" -- and deliver the end results for other product development teams to utilize.
  • Adept at delivering software in a fast-paced environment while still meeting high fiduciary quality standards.
  • Unit testing and validating financial algorithms and application/domain logic.

Qualifications
  • Bachelor's 5+ years of professional experience.
  • 5+ years of Java/J2EE and strong with collections APIs
  • Strong multithreading experience
  • Spring Boot and RESTful expertise in Design and Implementation
  • Hibernate
  • Demonstrated experience with Java and related ecosystem (Spring, Hibernate, Tomcat, etc) or similar.
  • Demonstrated experience with application software integration techniques (REST, SOAP/XML, etc)
  • Expert level understanding of Domain Driven Design and related software architecture and development techniques.
  • Clear demonstrated experience, ability and desire in designing and delivering complex software products.
  • Excellent communication skills. Individuals on our team work with many different people with very diverse roles and responsibilities. It is critical that the individual is pro-active in communicating well.
  • Demonstrated experience with leading the definition, design, development and delivery of new product features or components.
  • Experience developing with a test driven approach.
  • Familiarity with or open minded to embrace a dev ops driven culture

Huge Plus:
  • AWS Cloud experience- S3, Dynamo, Lambda or any other containers except(EC2 which is a non-serverless paradigm).
  • MicroServices

Additional Information
If this position be of interest to you, please contact me directly at 832-485-3662

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