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Senior Java Jobs in California (NOW HIRING)

Trantor Inc.

Senior Java Developer

Palo Alto, CA · On-site

$150 - $210/hr

Job Overview We are seeking a highly skilled Senior Java Developer to join our software development team. The ideal candidate will have strong hands‑on experience in building scalable microservices ...

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PB consulting

Senior Java Backend Developer

Menlo Park, CA

$142K - $184K/yr

We are seeking an experienced Senior Java Backend Developer to design, develop, and maintain scalable, high-performance backend applications. The ideal candidate will have strong expertise in Java ...

PB consulting

Senior Java Backend Developer

Foster City, CA · On-site

$140K - $182K/yr

We are seeking an experienced Senior Java Backend Developer to design, develop, and maintain scalable, high-performance backend applications. The ideal candidate will have strong expertise in Java ...

PB consulting

Senior Java Backend Developer

Mountain View, CA · On-site

$142K - $184K/yr

We are seeking an experienced Senior Java Backend Developer to design, develop, and maintain scalable, high-performance backend applications. The ideal candidate will have strong expertise in Java ...

PB consulting

$117K - $152K/yr

We are seeking an experienced Senior Java Backend Developer to design, develop, and maintain scalable, high-performance backend applications. The ideal candidate will have strong expertise in Java ...

PB consulting

Senior Java Backend Developer

San Carlos, CA · On-site

$145K - $189K/yr

We are seeking an experienced Senior Java Backend Developer to design, develop, and maintain scalable, high-performance backend applications. The ideal candidate will have strong expertise in Java ...

PB consulting

Senior Java Backend Developer

Hayward, CA · On-site

$138K - $179K/yr

We are seeking an experienced Senior Java Backend Developer to design, develop, and maintain scalable, high-performance backend applications. The ideal candidate will have strong expertise in Java ...

PB consulting

Senior Java Backend Developer

Sunnyvale, CA · On-site

$141K - $183K/yr

We are seeking an experienced Senior Java Backend Developer to design, develop, and maintain scalable, high-performance backend applications. The ideal candidate will have strong expertise in Java ...

PB consulting

Senior Java Backend Developer

Mountain View, CA · On-site

$142K - $185K/yr

We are seeking an experienced Senior Java Backend Developer to design, develop, and maintain scalable, high-performance backend applications. The ideal candidate will have strong expertise in Java ...

PB consulting

$127K - $165K/yr

We are seeking an experienced Senior Java Backend Developer to design, develop, and maintain scalable, high-performance backend applications. The ideal candidate will have strong expertise in Java ...

PB consulting

Senior Java Backend Developer

Woodside, CA · On-site

$144K - $188K/yr

We are seeking an experienced Senior Java Backend Developer to design, develop, and maintain scalable, high-performance backend applications. The ideal candidate will have strong expertise in Java ...

PB consulting

Senior Java Backend Developer

Stanford, CA · On-site

$141K - $183K/yr

We are seeking an experienced Senior Java Backend Developer to design, develop, and maintain scalable, high-performance backend applications. The ideal candidate will have strong expertise in Java ...

PB consulting

Senior Java Backend Developer

East Palo Alto, CA · On-site

$142K - $184K/yr

We are seeking an experienced Senior Java Backend Developer to design, develop, and maintain scalable, high-performance backend applications. The ideal candidate will have strong expertise in Java ...

PB consulting

Senior Java Backend Developer

Half Moon Bay, CA · On-site

$136K - $177K/yr

We are seeking an experienced Senior Java Backend Developer to design, develop, and maintain scalable, high-performance backend applications. The ideal candidate will have strong expertise in Java ...

PB consulting

Senior Java Backend Developer

Santa Clara, CA · On-site

$141K - $183K/yr

We are seeking an experienced Senior Java Backend Developer to design, develop, and maintain scalable, high-performance backend applications. The ideal candidate will have strong expertise in Java ...

PB consulting

Senior Java Backend Developer

Palo Alto, CA · On-site

$141K - $184K/yr

We are seeking an experienced Senior Java Backend Developer to design, develop, and maintain scalable, high-performance backend applications. The ideal candidate will have strong expertise in Java ...

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Senior Java information

What does a senior Java developer do?

A Senior Java Developer is responsible for designing, developing, and maintaining complex Java-based applications. They often lead development teams, make architectural decisions, and ensure code quality through best practices. Their role also includes mentoring junior developers, participating in code reviews, and collaborating with stakeholders to deliver robust software solutions. Senior Java Developers are expected to have extensive experience with Java frameworks, databases, and deployment processes.

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

To thrive as a Senior Java Developer, you need deep expertise in Java programming, object-oriented design, and a strong grasp of software development principles, typically backed by a computer science degree or relevant experience. Experience with tools like Spring Framework, Hibernate, Maven, Git, and proficiency in using integrated development environments (IDEs) such as IntelliJ IDEA or Eclipse is essential, and certifications like Oracle Certified Professional (OCP) can be beneficial. Outstanding problem-solving skills, effective communication, and the ability to mentor junior developers set top performers apart. These skills ensure the delivery of robust, maintainable code and foster high-performing teams capable of tackling complex projects.

How do senior Java developers typically collaborate with cross-functional teams on large-scale projects?

Senior Java Developers often work closely with product managers, QA engineers, UI/UX designers, and DevOps teams to ensure successful project delivery. They participate in architectural discussions, provide technical guidance, and help translate business requirements into scalable software solutions. Regular communication and agile ceremonies like sprint planning and code reviews are common, allowing them to align development efforts with overall business goals and quickly address challenges. This collaborative environment helps Senior Java Developers mentor junior team members and foster a culture of continuous improvement.

What is the difference between Senior Java vs Java Developer?

AspectSenior JavaJava Developer
Required CredentialsBachelor's degree, extensive Java experience, possibly certifications like Oracle Certified ProfessionalBachelor's degree, Java knowledge, entry to mid-level certifications
Work EnvironmentTeam lead, project architect, involved in design and mentoringDevelopment team member, coding, testing, and implementation
Employer & Industry UsageTech companies, finance, healthcare, enterprise solutionsStartups, tech firms, software agencies, enterprise sectors

Senior Java professionals typically have more experience, leadership responsibilities, and advanced certifications compared to Java Developers. They often lead projects and mentor junior staff, while Java Developers focus on coding and implementation. Both roles are vital in software development, but the senior position involves greater strategic input and oversight.

Are senior Java jobs still in demand?

Senior Java jobs remain in demand due to the widespread use of Java in enterprise applications, backend systems, and Android development. Employers seek experienced developers with strong knowledge of frameworks like Spring and Hibernate, and proficiency in cloud environments and microservices architecture enhances job prospects.

What are the most commonly searched types of Java jobs in California?

The most popular types of Java jobs in California are:

What cities in California are hiring for Senior Java jobs?

Cities in California with the most Senior Java job openings:

Senior Java jobs near you
Infographic showing various Senior Java job openings in California as of August 2026, with employment types broken down into 89% Full Time, 2% Part Time, and 9% Contract. Highlights an 82% Physical, 6% Hybrid, and 12% Remote job distribution.

Senior Java Backend & Data Engineering

M9 Consulting

Mountain View, CA • On-site

$141K - $183K/yr

Other

Posted 8 days ago

Job description

Hello All,

Hope you are doing well,

We have the role of Senior Java Backend & Data Engineering with our client. I have shared the detailed job description below. Let me know if you are interested in discussing this role further.

Title: Senior Java Backend & Data Engineering

Location:  Mountain View, CA (Onsite)

Duration: 12+ Months

Key Responsibilities:

·        Design, develop, and maintain scalable backend services using Java 17/21 and Spring Boot.

·        Build cloud-native microservices and REST APIs deployed on AWS.

·        Develop scalable batch and real-time data pipelines using Java and Python.

·        Build and optimize distributed data processing solutions for high-volume enterprise applications.

·        Collaborate with AI/ML, backend, and product engineering teams to enable AI-powered capabilities through reliable data platforms.

·        Design high-performance, resilient systems following modern software engineering best practices.

·        Leverage AI technologies to improve developer productivity and integrate AI-powered capabilities into applications.

·        Participate in architecture discussions, code reviews, performance tuning, testing, and production support.

Required Skills:

·        7+ years of software engineering experience.

·        Strong hands-on experience with Java 17/21.

·        Expertise in Spring Boot and Microservices architecture.

·        Strong experience developing applications on AWS.

·        Strong proficiency in Python.

·        Experience building scalable data pipelines, ETL/ELT processes, or distributed data processing systems.

·        Experience with Apache Spark, Kafka, or similar distributed data technologies.

·        Strong knowledge of SQL, data modeling, and modern data storage technologies.

·        Experience designing REST APIs and distributed backend systems.

·        Hands-on experience with AI technologies, including Agentic AI, LLM integrations, AI-assisted development tools (e.g., GitHub Copilot, Claude, Amazon Q), or AI-enabled application development.

·        Strong problem-solving skills and experience working in Agile development environments.

Preferred Qualifications:

·        Experience with Kubernetes, Docker, and CI/CD pipelines.

·        Experience with Airflow, Databricks, or similar data orchestration platforms.

·        Experience building data platforms supporting AI/ML workloads.

·        Experience with event-driven architectures.

·        Experience working in large-scale cloud-native enterprise environments.

 

 

Thanks and Regards,

Sai Punith,

M9 Consulting, Inc.

E-Verified | Women Owned | Minority Certified Business

Cell: +1  

Email: 

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