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Java Developer Jobs in Union City, CA (NOW HIRING)

Java Developer

Oakland, CA ยท On-site +1

$58.50 - $75.75/hr

We're looking for a Senior Java Developer to help design, build, and support scalable enterprise applications in a hybrid environment with onsite collaboration in Oakland, Rancho Cordova, or ...

New

Java Developer

Sunnyvale, CA ยท On-site

$59.75 - $77.50/hr

Looking for experienced java engineers to work on various changes and enhancements in IDMS. * Candidates must have strong Java/JEE skills and solid understanding of relational databases. * Candidate ...

Java Developer

San Leandro, CA ยท On-site

$56.50 - $73/hr

We are actively looking for a Back-End Developer (Java, Spring,) @ San leandro, CA TITLE: Back-End Developer (Java, Spring,MongoDB) LOCATION: San Leandro, CA Duration: 6 to 12+ Months Rate: DOE ...

Java Developer

San Francisco, CA

$60 - $77.75/hr

Be it core Java, full-stack Java, Web/UI designers, Big Data or Cloud or Mobility developers/architects, we have them all. Qualifications: Good knowledge in J2EE technologies and able to pick up new ...

Java Developer

Fremont, CA ยท On-site

$55.75 - $72.25/hr

Java Developer Location: Onsite Duration: 6+ months Details: * Full-Stack Desktop Development: Architecting responsive desktop and web applications using ElectronJS , React , and TypeScript

Java Developer

Oakland, CA ยท On-site

$58.50 - $75.75/hr

Java Developer Location: Oakland CA / Phoenix AZ - Hybrid Duration: 12 months The Software Engineer is a member of a development team in one of the development units within IT Services. He or she is ...

Java Developer

San Francisco, CA

$60 - $77.75/hr

Be it core Java, full-stack Java, Web/UI designers, Big Data or Cloud or Mobility developers/architects, we have them all. - Databases (MS SQL Server preferred), SQL - Java/J2EE development and ...

Company Description Intelliswift Software, Inc Need senior core java developer Java, multi-threading, algorithms, data structures, automation must be good in Linux, vmware Qualifications Java, multi ...

Java Developer

San Francisco, CA

$60 - $77.75/hr

Java Integration Developer Need: Java Apache Camel (can have a similar tool like Mulesoft, but Camel is preferred) Rest API's Big Data-Kafka and Cassandra Spring framework Industry: Retail experience ...

Java Developer

San Ramon, CA

$57 - $73.75/hr

Database Oracle, MySQL * Looking for hands-on developer * Banking is a plus but not necessary * Looking for 8 years of java experience Additional Information All your information will be kept ...

Java Developer

San Jose, CA

$59.75 - $77.25/hr

In this role, your duties will include application engineering in one or more of the following: Design and develop back end Java applications. Education and Experience * B.S. Computer Science or ...

Java Developer

Walnut Creek, CA

$56.50 - $73/hr

Java Developer Duration : 12+ Months Location : Walnut Creek, CA Visa Status : USC/GC/EAD The Sr. Developer position will be responsible for creating application solutions through engineering ...

Job Title: lead Java Developer Location: Mountain view ,CA Pay Rate : On C2C Mandatory Skills: 1. Java (Kotlin) 2. Spring Framework, REST, & GraphQL 3. Database: SQL & NoSQL (Dynamo & RDS referred ...

Java Developer

Santa Clara, CA ยท On-site

$60 - $75/hr

JAVA Developer Santa Clara, CA (Onsite; hybrid is possible, but no remote work) Duties: * Identify business needs by establishing personal rapport with actual, potential, and internal clients

JAVA Developer Santa Clara, CA (Onsite; hybrid is possible, but no remote work) Duties: * Identify business needs by establishing personal rapport with actual, potential, and internal clients

Java Developer

Sunnyvale, CA

$59.75 - $77.50/hr

Role - Java Developer Location - Sunnyvale, CA Duration - 4 Months (with possible extension) Basic Qualifications: A Bachelor's degree in Computer Science or equivalent combination of technical ...

Showing results 21-40

Java Developer information

See Union City, CA salary details

$17

$64

$88

How much do java developer jobs pay per hour?

As of Aug 8, 2026, the average hourly pay for java developer in Union City, CA is $64.58, according to ZipRecruiter salary data. Most workers in this role earn between $55.87 and $72.31 per hour, depending on experience, location, and employer.

What do Java developers do?

Java developers create dynamic computer applications and websites using the Java computer programming language. The Java language integrates with other programming languages and infrastructures to build robust business applications and software for a wide range of industries, from finance and healthcare to content management and social media. Java developers may be involved in all stages of application development, from conception and design to testing, production, and ongoing maintenance. The goal is to provide efficient solutions for business needs.

Is a Java developer still in demand?

Java developers remain in high demand due to the language's widespread use in enterprise applications, Android development, and backend systems. Skills in frameworks like Spring and knowledge of cloud platforms can enhance job prospects in this field.

What is the difference between Java Developer vs Software Engineer?

AspectJava DeveloperSoftware Engineer
Required CredentialsBachelor's in Computer Science or related, Java certificationsBachelor's in Computer Science or related, various certifications
Work EnvironmentDevelops Java-based applications, often in teamsDesigns and develops software solutions, may include Java projects
Employer & Industry UsageTech companies, finance, e-commerceBroad industry, including tech, finance, healthcare

Java Developers focus specifically on Java programming, while Software Engineers have a broader role in designing and developing software solutions across multiple languages. Both roles often require similar educational backgrounds and certifications, but Java Developers typically work more directly with Java-based projects, whereas Software Engineers may handle diverse technologies.

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

To thrive as a Java Developer, you need strong proficiency in Java programming, object-oriented design, and a solid understanding of software development principles, usually supported by a degree in computer science or related fields. Familiarity with frameworks such as Spring or Hibernate, experience with version control systems like Git, and sometimes certification like Oracle Certified Professional Java Programmer (OCPJP) are commonly required. Effective problem-solving, teamwork, and attention to detail are crucial soft skills in this role. These skills ensure robust, maintainable, and scalable software solutions that meet project requirements and business goals.

What is a Java developer?

Java Developers are software professionals who specialize in designing, developing, and maintaining applications using the Java programming language. They work on a variety of projects, including web, desktop, and mobile applications, as well as enterprise-level systems. Java Developers are responsible for writing clean and efficient code, testing and debugging programs, and collaborating with other team members to deliver robust software solutions. Their expertise in Java and related technologies is crucial for building scalable and secure applications.

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

Java Developers working on large-scale enterprise applications often encounter challenges such as managing complex codebases, ensuring efficient performance, and integrating with legacy systems. Collaborating with cross-functional teams is crucial, as these projects typically involve multiple developers, QA engineers, and business analysts. Additionally, maintaining code quality and adhering to best practices while meeting tight deadlines can be demanding. Staying up-to-date with evolving frameworks and tools also plays a key role in overcoming these challenges.
What job categories do people searching Java Developer jobs in Union City, CA look for? The top searched job categories for Java Developer jobs in Union City, CA are:
What cities near Union City, CA are hiring for Java Developer jobs? Cities near Union City, CA with the most Java Developer job openings:
Infographic showing various Java Developer job openings in Union City, CA as of August 2026, with employment types broken down into 80% Full Time, 5% Part Time, and 15% Contract. Highlights an 83% Physical, 4% Hybrid, and 13% Remote job distribution, with an average salary of $134,331 per year, or $64.6 per hour.

Java Developer

Horizontal Talent

Oakland, CA โ€ข On-site, Remote

$58.50 - $75.75/hr

Full-time

This job post hasย expired 1 day ago.ย Applications are no longer accepted.


Job description

Weโ€™re looking for a Senior Java Developer to help design, build, and support scalable enterprise applications in a hybrid environment with onsite collaboration in Oakland, Rancho Cordova, or Alpharetta. This role offers the opportunity to work on modern Spring Boot microservices, RESTful APIs, and cloud-ready solutions while contributing to application modernization and CI/CD initiatives.

Responsibilities
  • Design, develop, test, and deploy high-performance applications using Core Java and Spring Boot microservices.
  • Build and maintain RESTful APIs and integrate solutions with internal and external systems.
  • Translate business requirements into effective technical designs and implementations.
  • Participate in architecture discussions, design reviews, and code reviews to improve solution quality.
  • Troubleshoot production issues, including performance, scalability, and reliability concerns.
  • Collaborate with Product Owners, Architects, DevOps, QA, and other cross-functional partners.
  • Work within Agile delivery practices and contribute to engineering best practices.
  • Support CI/CD efforts and application modernization initiatives.
  • Design and optimize database structures, queries, and stored procedures for relational database environments.
Skills
  • 7+ years of Java application development experience.
  • Strong hands-on experience with Core Java, including object-oriented programming, collections, multithreading, concurrency, exception handling, JVM concepts, and performance tuning.
  • Experience with Java 8+ features such as streams, lambda expressions, and functional programming concepts.
  • Practical experience with Spring Boot, Spring MVC, Spring Data JPA/Hibernate, Spring Security, and Spring Cloud.
  • Proven background designing and developing microservices-based solutions.
  • Experience creating and supporting REST APIs.
  • Strong database skills with Oracle or SQL Server, including SQL, schema design, query optimization, stored procedures, and performance tuning.
  • Experience with Git, Maven or Gradle, Jenkins, and SonarQube.
  • Ability to collaborate effectively, solve problems proactively, and communicate clearly across technical and non-technical teams.
Preferred Skills
  • Exposure to Azure services such as Azure Kubernetes Service, Azure Functions, Azure Service Bus, Azure App Services, Azure DevOps, or Azure Key Vault.
  • Experience with Docker and Kubernetes.
  • Familiarity with Kafka, RabbitMQ, or other messaging technologies.
  • Knowledge of API gateways and event-driven architectures.
  • Understanding of OAuth and JWT-based security practices.
  • Experience with cloud-native or distributed system development.
  • Background supporting enterprise applications in modern engineering environments.

Horizontal is committed to fostering an inclusive, equitable, and welcoming workplace where people of all backgrounds can thrive. We value diverse perspectives and encourage candidates from all communities to apply.

By applying for this position, you acknowledge and agree that Horizontal Talent may contact you regarding your application using automated technology, including phone calls, SMS/text messages, or email, which may be delivered by our virtual AI recruiter, Alex.