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Junior Java Microservices Developer Jobs in California

unitQ

Staff Java Engineer

San Francisco, CA · On-site

$61 - $83.75/hr

Develop and maintain Java microservices, libraries, automated tests, and build scripts. * Expertise ... Perform code reviews and evaluate pull requests, helping other engineers debug and resolve problems.

unitQ

Staff Java Engineer

San Francisco, CA · On-site

$61 - $83.75/hr

Develop and maintain Java microservices, libraries, automated tests, and build scripts. * Expertise ... Perform code reviews and evaluate pull requests, helping other engineers debug and resolve problems.

unitQ

Staff Java Engineer

San Francisco, CA

$61 - $83.75/hr

Develop and maintain Java microservices, libraries, automated tests, and build scripts. * Expertise ... Perform code reviews and evaluate pull requests, helping other engineers debug and resolve problems.

Redolent, Inc.

Lead SRE Engineer

San Leandro, CA · On-site

$63 - $83.75/hr

Min 15+ years of experience in Site Reliability Engineering ... With development background in Java microservices & Spring Web applications development * MongoDB ...

Amiseq Inc.

Backend Java Engineer

Sunnyvale, CA · On-site

$60 - $78/hr

Role: - Backend Java Developer Location: Sunnyvale CA (2 days WFO) Type: - 12 months Contract with ... Strong experience with Java, Spring Boot, and building scalable microservices, particularly in ...

Compunnel

Senior Java Backend Developer

Aliso Viejo, CA · On-site

$61.25 - $78/hr

Job Summary We are seeking a Senior Java Backend Developer with 7+ years of experience in the Java ... Spring technologies, microservices, and enterprise application development. Strong hands-on ...

Compunnel

Senior Java Backend Developer

Aliso Viejo, CA · On-site

$61.25 - $78/hr

Job Summary We are seeking a Senior Java Backend Developer with 7+ years of experience in the Java ... Spring technologies, microservices, and enterprise application development. Strong hands-on ...

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 ...

Perfict

Java Developer

San Jose, CA · On-site

$59.75 - $77.25/hr

... Microservices design, production-level troubleshooting & database fundamentals. • Deep experience designing microservices (service boundaries, API design, idempotency, retries, circuit breaking ...

IMR Soft LLC

Backend Java Developer

Mountain View, CA · On-site

$59.25 - $76.75/hr

Backend Developer (Java) - 8 Openings Location : Mountain View, CA 12 months Required Skills * 7+ ... Strong expertise in Java (17/21), Spring Boot, Spring Cloud, Microservices, and REST APIs. * Hands ...

Programmers.io

Java Kubernetes Admin

Sunnyvale, CA · On-site

$59.75 - $77.50/hr

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

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 ... Developing secure RESTful APIs and microservices leveraging Node.js , Python , and Express . * Data ...

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Junior Java Microservices Developer jobs near you
Infographic showing various Junior Java Microservices Developer job openings in California as of August 2026, with employment types broken down into 79% Full Time, 3% Part Time, and 18% Contract. Highlights an 81% Physical, 4% Hybrid, and 15% Remote job distribution.

Java Developer - Kotlin / Swift

Source Code Technologies LLC

Fremont, CA • On-site

Other

Posted 10 days ago

Job description

Java Developer – Kotlin / Swift (Local Candidates Only)

Location: Fremont, CA
Work Arrangement: Onsite – 4 Days/Week
Experience: 8–10+ Years
Employment Type: Contract 

Job Summary

We are seeking a highly experienced Java Developer with strong backend development expertise and solid experience with Kotlin and Swift/iOS. The ideal candidate will have a strong Java/J2EE background, hands-on experience building scalable applications using Spring Boot and microservices, and the ability to work across backend and mobile technologies.

Java must be the candidate’s primary skill, with proven experience in Kotlin and a solid background in Swift/iOS or mobile application development. Candidates must be able to work onsite in Fremont, CA, 4 days per week.

Key Responsibilities
  • Design, develop, test, and maintain enterprise-grade applications using Java/J2EE.
  • Develop scalable backend services and microservices using Spring Boot.
  • Design and integrate RESTful APIs and distributed services.
  • Work with Kotlin for application and backend development.
  • Collaborate on Swift/iOS and mobile application development and integrations.
  • Design and optimize SQL queries and work with relational databases.
  • Participate in architecture discussions, code reviews, debugging, and performance tuning.
  • Apply OOP principles, design patterns, data structures, and algorithms to develop maintainable solutions.
  • Troubleshoot complex production and application issues.
  • Follow Git-based development workflows and CI/CD practices.
  • Work closely with cross-functional teams in an Agile/Scrum environment.
Required Skills
  • 8–10+ years of hands-on software development experience.
  • Strong and demonstrable Java development experience as the primary skill.
  • Strong experience with Java/J2EE, Spring Boot, REST APIs, and Microservices.
  • Solid hands-on experience with Kotlin.
  • Strong background in Swift / iOS development or mobile application development.
  • Strong understanding of OOP, design patterns, data structures, and algorithms.
  • Experience developing and integrating RESTful APIs and microservices.
  • Strong SQL and relational database experience.
  • Experience with Git, CI/CD, and Agile/Scrum methodologies.
  • Excellent debugging, troubleshooting, and code-review skills.
  • Strong communication and problem-solving abilities.
Preferred Skills
  • Enterprise application development experience.
  • Experience integrating backend services with mobile applications.
  • Knowledge of cloud platforms and modern DevOps practices.
  • Experience working in large-scale distributed systems.
Key Skills

Java | J2EE | Spring Boot | Microservices | REST APIs | Kotlin | Swift | iOS | SQL | Git | CI/CD | Agile/Scrum

Candidate Requirements
  • Java must be the primary/core technology.
  • Candidates should have solid Kotlin experience.
  • Candidates with strong Swift/iOS or mobile development experience are highly preferred.
  • Must be available to work onsite in Fremont, CA, 4 days per week.
  • Only candidates who can meet the 4-day onsite requirement should be considered.

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