Java Developer Volunteer Jobs in Irvine, CA (NOW HIRING)

We're seeking an established Java Developer to join a high-performing technology team supporting business-critical platforms and enterprise applications. This is an opportunity to work on complex, large-scale systems, collaborate with experienced engineers, and contribute to projects that have a direct impact on core business operations.

If you enjoy solving challenging technical problems, building scalable solutions, and owning projects from design through production support, we'd love to hear from you.

• Design, develop, and support enterprise-grade backend applications using Java and Spring Boot.
• Build scalable APIs, integrations, and distributed services that support critical business workflows.
• Collaborate with product owners, QA teams, and business stakeholders to deliver high-quality software solutions.
• Participate in architecture discussions, code reviews, testing, and deployment activities.
• Troubleshoot and resolve production issues while driving long-term platform improvements.
• Create technical documentation and contribute to engineering best practices.
• Enhance system performance, scalability, resilience, and developer efficiency.

• 8+ years of professional software development experience.
• Strong Java development experience building enterprise applications.
• Expertise with Spring Boot, REST APIs, and backend system design.
• Strong Oracle database experience including SQL development, data modeling, performance tuning, and query optimization.
• Experience supporting large-scale, business-critical applications.
• Knowledge of object-oriented design principles, software architecture, and development best practices. Experience with Git, CI/CD pipelines, automated testing, and production support
• Excellent communication and collaboration skills.

• Cloud-native development experience.
• Experience with Kafka, AMPS, or event-driven architecture platforms.
• Agile development experience.
• Familiarity with AI-assisted development tools such as GitHub Copilot, Cursor, or Claude Code.
• Exposure to financial services, trading systems, investment platforms, or highly regulated industries.

Job Type & Location

This is a Contract position based out of Newport Beach, CA.

The pay range for this position is $50.00 - $60.00/hr.

Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following: • Medical, dental & vision • Critical Illness, Accident, and Hospital • 401(k) Retirement Plan – Pre-tax and Roth post-tax contributions available • Life Insurance (Voluntary Life & AD&D for the employee and dependents) • Short and long-term disability • Health Spending Account (HSA) • Transportation benefits • Employee Assistance Program • Time Off/Leave (PTO, Vacation or Sick Leave)

This is a fully onsite position in Newport Beach,CA.

This position is anticipated to close on Aug 14, 2026.

We're partners in transformation. We help clients activate ideas and solutions to take advantage of a new world of opportunity. We are a team of 80,000 strong, working with over 6,000 clients, including 80% of the Fortune 500, across North America, Europe and Asia. As an industry leader in Full-Stack Technology Services, Talent Services, and real-world application, we work with progressive leaders to drive change. That's the power of true partnership. TEKsystems is an Allegis Group company.

The company is an equal opportunity employer and will consider all applications without regards to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

We’re a leading provider of business and technology services. We accelerate business transformation for our customers. Our expertise in strategy, design, execution and operations unlocks business value through a range of solutions. We’re a team of 80,000 strong, working with over 6,000 customers, including 80% of the Fortune 500 across North America, Europe and Asia, who partner with us for our scale, full-stack capabilities and speed. We’re strategic thinkers, hands-on collaborators, helping customers capitalize on change and master the momentum of technology. We’re building tomorrow by delivering business outcomes and making positive impacts in our global communities. TEKsystems and TEKsystems Global Services are Allegis Group companies. Learn more at TEKsystems.com.

The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

San Francisco Fair Chance Ordinance: Pursuant to the San Francisco Fair Chance Ordinance, for all positions located in the city and county of San Francisco, we will consider for employment qualified applicants with arrest and conviction records.

Massachusetts Lie Detector: It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

Use of Artificial Intelligence (AI): We may use Artificial Intelligence (AI) to support parts of our hiring process, including sourcing, screening, and evaluating candidates. AI helps assess applications and qualifications, but final decisions are made by our hiring team. By applying, you acknowledge and agree that your application may be reviewed using AI tools.