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Senior Java Developer Jobs in Ontario, CA (NOW HIRING)

CoStar Group

Senior DevOps Engineer

Orange, CA · On-site

$138K - $178K/yr

Senior DevOps Engineer Overview CoStar Group (CSGP) is a leading global provider of commercial and ... Programming languages / some developer background with either Java, C#, Python, NodeJS * Server ...

Jobsbridge

Sr. UI/UX Developer

Irvine, CA · On-site

$64.50 - $83.50/hr

Be it core Java, full-stack Java, Web/UI designers, Big Data or Cloud or Mobility developers/architects, we have them all. 5+ years' experience with UI /UX design, development, implementation ...

Jobsbridge

Sr. UI/UX Developer

Irvine, CA · On-site

$53.75 - $69.75/hr

Be it core Java, full-stack Java, Web/UI designers, Big Data or Cloud or Mobility developers/architects, we have them all. Basic Minimum Qualifications: 5+ years' experience with UI /UX design ...

Lincoln Softtech LLC

Sr AWS cloud Engineer

Irvine, CA · On-site

$112K - $154K/yr

... Enable developer self-service and reduce manual intervention through automation · Manage ... Java/Python Key Competencies · Strong troubleshooting and problem-solving across distributed ...

PacSun

Sr. OMS Developer

Anaheim, CA · On-site

$116K - $132K/yr

As a Senior OMS Developer, this is a crucial role in designing and developing technical solutions ... Mastery of programming languages such as JavaScript and Java. * Strong understanding of data ...

Esri

Sr. Product Engineer - Geodatabase

Redlands, CA · On-site

Esri is a leading company in GIS technology, and they are seeking a Sr. Product Engineer to join ... C#, Java, C++, or Python • Strong DBMS expertise in a commercial RDBMS • Effective time ...

Esri

Sr. Product Engineer - Geodatabase

Redlands, CA · On-site

Esri is a leader in GIS technology, and they are seeking a Sr. Product Engineer to join their ... C#, Java, C++, or Python • Strong DBMS expertise in a commercial RDBMS • Effective time ...

Karma Automotive

Sr. Engineer II - Software Design

Irvine, CA · Remote

$130K - $172K/yr

... DevOps practices, and tools for continuous integration and deployment * Strong experience with specific languages, such as Java, Python, SQL, and shell scripts * Familiarity with JavaScript ...

360 IT Professionals

lamp Developer

Irvine, CA · On-site

... OO languages, such C++, Java, PHP, C#, etc.. Experience with SQL and Relational databases ... Regards, Megha Wadhwa Senior Talent Acquisition Specialist 360 IT Professionals Inc. MBE |Small ...

Lever Demo 2

Senior Software Developer, Platform

Irvine, CA · On-site

$58.50 - $77.25/hr

Lever is looking to add another rock star Senior Software Developer, Platform to our growing, best ... Join us! What you will do * You're are a Java/J2EE software guru, looking to join a team of like ...

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All JobsJava Developer JobsSenior Java Developer JobsSenior Java Developer Jobs in Ontario, CA

Senior Java Developer information

See Ontario, CA salary details

$11

$63

$87

How much do senior java developer jobs pay per hour?

As of Aug 11, 2026, the average hourly pay for senior java developer in Ontario, CA is $63.92, according to ZipRecruiter salary data. Most workers in this role earn between $56.01 and $71.39 per hour, depending on experience, location, and employer.

What is the difference between Senior Java Developer vs Java Software Engineer?

AspectSenior Java DeveloperJava Software Engineer
Required CredentialsBachelor's in CS or related, Java certifications often preferredBachelor's in CS or related, Java certifications beneficial
Work EnvironmentTeam lead roles, project management, mentoringDevelopment-focused, coding, testing, and implementation
Employer & Industry UsageTech companies, finance, e-commerceSoftware firms, startups, enterprise IT
Common Search & ComparisonOften compared for experience level and responsibilitiesSimilar roles with slight variations in scope

The main difference between a Senior Java Developer and a Java Software Engineer lies in their responsibilities and experience. Senior Java Developers typically take on leadership, mentoring, and project management roles, while Java Software Engineers focus more on coding, development, and technical implementation. Both roles require strong Java skills and relevant credentials, but the Senior Java Developer usually has more experience and a broader scope of responsibilities.

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

Senior Java Developers often encounter challenges such as maintaining code quality across large codebases, managing dependencies between modules, and ensuring optimal application performance. Collaborating with cross-functional teams—including QA, DevOps, and product management—requires clear communication and effective problem-solving. Additionally, staying updated with the latest Java frameworks and best practices is essential for delivering scalable and maintainable solutions in complex enterprise environments.

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

To thrive as a Senior Java Developer, you need advanced proficiency in Java programming, experience with software design patterns, and a strong grasp of backend development, often supported by a degree in computer science or related field. Familiarity with frameworks like Spring, build tools such as Maven or Gradle, and version control systems like Git, as well as knowledge of cloud platforms, is typically required. Excellent problem-solving, leadership, and communication skills help you guide teams and collaborate effectively. These competencies are crucial for delivering robust, scalable software solutions and driving technical success within development teams.

What is a senior Java developer?

Senior Java Developers are experienced software engineers who specialize in using the Java programming language to design, develop, and maintain complex applications. They typically lead development teams, oversee project architecture, and ensure code quality through best practices. In addition to strong coding skills, they often mentor junior developers and collaborate with stakeholders to deliver robust software solutions. Their expertise is crucial in building scalable, high-performance applications across various industries.
What are the most commonly searched types of Java Developer jobs in Ontario, CA? The most popular types of Java Developer jobs in Ontario, CA are:
What are popular job titles related to Senior Java Developer jobs in Ontario, CA? For Senior Java Developer jobs in Ontario, CA, the most frequently searched job titles are:
What job categories do people searching Senior Java Developer jobs in Ontario, CA look for? The top searched job categories for Senior Java Developer jobs in Ontario, CA are:
What cities near Ontario, CA are hiring for Senior Java Developer jobs? Cities near Ontario, CA with the most Senior Java Developer job openings:
Senior Java Developer jobs near you

Senior DevOps Engineer

CoStar Group

Orange, CA • On-site

$138K - $178K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 23 days ago

Job description

Senior DevOps Engineer
Job Description
Overview
CoStar Group (CSGP) is a leading global provider of commercial and residential real estate information, analytics, and online marketplaces. Included in the S&P 500 Index, CoStar Group is on a mission to digitize the world's real estate, empowering all people to discover properties, insights and connections that improve their businesses and lives.
We have been living and breathing the world of real estate information and online marketplaces for over 35 years, giving us the perspective to create truly unique and valuable offerings to our customers. We've continually refined, transformed and perfected our approach to our business, creating a language that has become standard in our industry, for our customers, and even our competitors. We continue that effort today and are always working to improve and drive innovation. This is how we deliver for our customers, our employees, and investors. By equipping the brightest minds with the best resources available, we provide an invaluable edge in real estate.
We are currently seeking an accomplished Senior DevOps Engineer to join our team, while supporting our multiple software products and brands across the organization, such as Debt Solutions, CoStar Suites, LoopNet, Apartments.com, Homes.com, and Ten-X.
This position is located in Irvine, CA and has the work schedule of 4 days onsite and 1 day work from home.
What qualities are we looking for?
  • An individual with a sense of ownership and pride in his performance and its impact on company's success and can work in a fast-paced environment, supporting multiple software products and brands across the organization such as www.apartments.com, www.costar.com and www.loopnet.com
  • An Individual who is passionate about automating and leveraging DevOps principles, always striving for operational excellence with infrastructure-as-code mentality.
  • An individual who lives and breathes continuous integration/continuous delivery (CI/CD) using latest DevOps tools and innovative methods
  • An individual with proactive and go-getter attitude who works well in a team environment as an individual contributor
  • An individual who is comfortable in a development and operations role
  • An individual who has a thirst for learning new tools, platforms and languages
  • An individual who communicates and collaborates well with teams in IT and business organizations within the company
  • A critical thinker with good problem solving and time management skills and an ability to multi-task
  • An individual with strong communication skills, expresses oneself clearly both verbally and in writing.
  • Provides help to management, including hiring, on-boarding, training and performance reviews.
  • Motivates team members and assesses performance, keeps management updated on team performance.

Basic Qualifications:
  • Bachelor's Degree required from an accredited, in-person, not for profit university or college
  • A track record of commitment to prior employers
  • 5+ years' experience with managing heavy web traffic sites using mass scale architecture with a developer focus
  • Solid sizing and estimation techniques for small to medium size tasks and projects
  • Infrastructure as code using Cloudformation, Terraform or similar platforms
  • Heavy experience using AWS or Azure or Google cloud
  • Strong understanding of Kubernetes environments and supporting tooling
  • Foundational understanding of AI/ML concepts and practical application as it applies to improving workflows, observability and team efficiency
  • Heavy scripting support with PowerShell or Bash
  • Conceptual understanding of SQL and No SQL databases, with the ability to evaluate and select appropriate solutions based on performance, cost and technical fit.
  • Experience with configuring Content Delivery Networks (CDN) for performance caching and global traffic management.
  • Familiarity with infrastructure foundation components of large networks in AWS and on-prem (e.g., systems & network administration, DNS, hypervisors, containers, databases, multi-datacenters).

Nice to Haves:
  • Experience with enterprise monitoring tools in areas of APM, system vitals, synthetics and RUM.
  • Programming languages / some developer background with either Java, C#, Python, NodeJS
  • Server-less architecture methodologies
  • Familiarity with PCI compliance and remediation
  • Mobile application support (iOS, Android)
  • Experience in REST API or Microservices development
  • Agile methodologies and working on short sprint cycles

What's in it for You
When you join CoStar Group, you'll experience a collaborative and innovative culture working alongside the best and brightest to empower our people and customers to succeed.
We offer you generous compensation and performance-based incentives. CoStar Group also invests in your professional and academic growth with internal training, and tuition reimbursement.
Our benefits package includes (but is not limited to):
  • Comprehensive healthcare coverage: Medical / Vision / Dental / Prescription Drug
  • Life, legal, and supplementary insurance
  • Virtual and in person mental health counseling services for individuals and family
  • Commuter and parking benefits
  • 401(K) retirement plan with matching contributions
  • Employee stock purchase plan
  • Paid time off
  • Tuition reimbursement
  • On-site fitness center and/or reimbursed fitness center membership costs (location dependent), with yoga studio, Pelotons, personal training, group exercise classes
  • Access to CoStar Group's Employee Resource Groups
  • Complimentary gourmet coffee, tea, hot chocolate, fresh fruit, and other healthy snacks

This position offers an annual salary range from $169,000 - $202,000 determined by relevant skills and experience, in addition to a generous benefits plan.
We welcome all qualified candidates who are currently eligible to work full-time in the United States to apply. However, please note that CoStar Group is not able to provide visa sponsorship for this position.
#CoStar
#LI-CG1
CoStar Group is an Equal Employment Opportunity Employer; we maintain a drug-free workplace and perform pre-employment substance abuse testing

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