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Freelance Java Backend Developer Jobs in Irvine, CA

Xforia, Inc.

Backend Java Developer

San Dimas, CA · On-site

$50.50 - $65.50/hr

* Strong experience with Java, J2EE and Multi-Threading • Experience with spring and Spring Boot. • Strong Data Structures + Concurrency. • Experience in raising cases, data accuracy , high ...

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As of Sep 3, 2026, the average hourly pay for freelance java backend developer in Irvine, CA is $58.64, according to ZipRecruiter salary data. Most workers in this role earn between $52.12 and $67.60 per hour, depending on experience, location, and employer.

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Software Engineer, Short Term Technology

PIMCO

Newport Beach, CA • On-site

Full-time

Re-posted 26 days ago

Job description

We are a leading global asset management firm with over 3,000 employees across 20 offices in 15 countries; we help millions of investors around the world pursue their financial goals.
We hire critical thinkers. People who thrive in a collaborative culture like ours where we solve real problems while building the future of finance.
You
  • Are excited to be part of a vibrant engineering community that values diversity, hard work, and continuous learning.
  • Love solving complex real-world business problems.
  • Recognize that cross-functional collaboration is a core component of success for the team.
  • Believe there are multiple ways to solve most technical problems and are willing to debate the trade-offs.
  • Have become a stronger engineer by making mistakes and learning from them.
  • Are a doer, someone who wants to grow their career and gain experience across technologies and business functions.

We
  • Continuously invest in a high-performance and inclusive culture, in which a diversity of backgrounds, experiences and viewpoints are celebrated and valued.
  • Encourage career mobility, so you can benefit from learning different functions and technologies, and we gain the benefits of your experience across teams.
  • Run technology pro bono programs that help the non-profit community and give our engineering community opportunities to volunteer and participate.
  • Offer education reimbursements and ongoing training in technology, communication, and diversity & inclusion.
  • Embrace knowledge sharing through lunch-and-learns, demos, and technical forums.
  • Consider our people to be our greatest asset-we will help you learn what PIMCO Technology has to offer so you can participate in activities that benefit your career while delivering impactful technology solutions.

We are looking to hire a Java Back-End Developer to join our Short-Term Desk Technology team. This role focuses on building the next generation of trading and cash management systems used across our Short Term, Cash, and Collateral desks.
The seniority of the hire will depend on the successful candidate's experience.
You will work on modernizing existing platforms, developing new cloud native services, and contributing to our broader migration toward AWS. The role offers close collaboration with front office stakeholders and ownership across the full software lifecycle.
Core Engineering
  • Design, build, and maintain high quality, scalable microservices using Java 21 and modern frameworks.
  • Develop new functionality while evolving existing components with clean, maintainable, well tested code.
  • Apply TDD, good CI/CD practices, and strong engineering standards.

Cloud & Platform Modernization
  • Contribute to our cloud migration initiatives by building containerized, cloud ready services.
  • Work with AWS services (e.g., Lambda, EKS, RDS, S3, MSK) to help move workloads off legacy environments.
  • Participate in improving observability through metrics, tracing, and logging.

AI & Automation
  • Use applied AI tooling (e.g., GitHub Copilot, MCP servers, and LLMs) to accelerate development, improve testing quality, and streamline operational automation.
  • Identify and implement opportunities for intelligent automation within systems (e.g., anomaly detection, documentation generation, automated runbooks).

Business Collaboration
  • Work directly with portfolio managers, traders, and operations teams to deliver high impact solutions.
  • Understand front office workflows and translate them into robust, performant technical designs

Required Qualifications
  • 5+ years of strong experience with Java (preferably Java 17+; ideally Java 21) and back-end development
  • Familiarity with microservices, REST APIs, and event driven architectures.
  • Some exposure to AWS or cloud native engineering concepts (containers, CI/CD, infrastructure as code).
  • Interest or experience in using AI tools to boost productivity (code generation, test creation, documentation, etc.).
  • A proactive mindset, eagerness to learn, and ability to work in a fast-moving front office environment.
  • Strong communication skills and desire to partner closely with business users.

Why Join us?
  • Work on high visibility trading systems critical to PIMCO's Short Term Desk.
  • Gain hands on experience with modern Java, cloud engineering, and applied AI.
  • Collaborate with a talented global engineering team and front office partners.
  • Opportunity to take real ownership - from design and implementation through to production.

PIMCO follows a total compensation approach when rewarding employees which includes a base salary and a discretionary bonus. Base salary is the fixed component of compensation that is determined by core job responsibilities, relevant experience, internal level, and market factors. The discretionary bonus is used to award performance and therefore is determined by company, business, team, and individual performance.
Salary Range: $ 125,000.00 - $ 240,000.00
Equal Employment Opportunity and Affirmative Action Statement
PIMCO recruits and hires qualified candidates without regard to race, national origin, ancestry, religion (including religious dress and grooming practices), sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), sexual orientation, gender (including gender identity and expression), age, military or veteran status, disability (physical or mental), any factor prohibited by law, and as such affirms in policy and practice to support and promote the concept of equal employment opportunity and affirmative action, in accordance with all applicable federal, state, provincial and municipal laws. The company also prohibits discrimination on other basis such as medical condition, or marital status under applicable laws.
Applicants with Disabilities
PIMCO is an Equal Employment Opportunity/Affirmative Action employer. We provide reasonable accommodation for qualified individuals with disabilities, including veterans, in job application procedures. If you have any difficulty using our online system due to a disability and you would like to request an accommodation, you may contact us at 949-720-7744 and leave a message. This is a dedicated line designed exclusively to assist job seekers with disabilities to apply online. Only messages left for this purpose will be considered. A response to your request may take up to two business days.

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