Java Backend Engineer

Job Title

Java Backend Engineer

Duration

6+ Months

Location

like San Jose, CA (Hybrid - 3 days onsite required). I need some expertise in Java and python. Remember they typically like ex-paypal/ebay folks

Key Skills

• Strong expertise in Java, Spring, and Spring Boot


• Cloud experience with GCP (preferred)

Interview Process

1. Coding Round (Java / Spring Boot)


2. System Design Interview


3. Hiring Manager Interview

About the Project

The Next Gen Risk Ecosystem (NGRE) initiative is focused on advancing PayPal's risk systems to strengthen platform trust, drive sustainable growth, and maintain a competitive edge through modernization and innovation.

Key Challenges Addressed

• Increasing fraud complexity and pressure


• Fragmented and outdated defense systems


• Legacy infrastructure limiting agility and scalability

The mission is to modernize risk defenses using AI/ML-driven automation, modular platforms, and unified data and decision layers, enabling seamless risk intelligence across Venmo, Xoom, and Braintree ecosystems.

Role Overview

We are seeking a Java Developer to join the Partnership Risk Engineering team. This role is ideal for a hands-on engineer passionate about scalable system design, cloud-native development, and intelligent automation.

Key Responsibilities

• Design, develop, and deploy scalable Java-based microservices and RESTful APIs using Spring and Spring Boot


• Collaborate with Data Scientists, Product Managers, and Architects to deliver end-to-end risk management solutions


• Implement and optimize CI/CD pipelines using Harness or Jenkins


• Deploy and support applications across GCP (AWS experience a plus)


• Improve backend performance, scalability, and resilience in distributed cloud environments


• Integrate with modern data platforms and decision services supporting real-time fraud detection


• Utilize AI-assisted development tools (GitHub Copilot, Claude, Cursor) to accelerate development and testing


• Troubleshoot complex system issues and implement root-cause fixes


• Support platform modernization using Docker, Kubernetes, and NoSQL technologies where applicable

Qualifications

Education & Experience

• Bachelor's degree in Computer Science, Engineering, or a related field


• 3+ years of professional enterprise software development experience

Technical Skills

• Strong proficiency in Java, J2EE, Spring Framework, and Spring Boot


• Solid understanding of RESTful API design


• Experience with relational databases (Oracle, MySQL); familiarity with NoSQL


• Hands-on experience with CI/CD pipelines (Harness or Jenkins)


• Cloud deployment experience (GCP preferred, AWS a plus)


• Knowledge of Docker, Kubernetes, and distributed systems architecture


• Familiarity with AI-powered development tools

Professional Attributes

• Self-motivated with strong ownership and accountability


• Excellent analytical, debugging, and problem-solving skills


• Comfortable working in fast-paced, evolving environments

Collaboration & Communication

• Proven ability to work in cross-functional, matrixed teams


• Strong communication skills with both technical and non-technical stakeholders


• Ability to translate complex business requirements into scalable technical solutions

Team & Business Context

Team: Xoom Risk Engineering

Reason for Need: Workload surge and resource backfill

Extension / Conversion: Yes, based on performance and budget

Typical Day in the Role

• Develop, enhance, and maintain multiple Java-based microservices applications across Xoom and PayPal platforms


• Support a portfolio of 40+ applications, ensuring performance, reliability, and stability


• Lead re-architecture initiatives to modernize legacy systems into cloud-native, modular microservices


• Perform ongoing enhancements, bug fixes, and feature development


• Collaborate with platform and infrastructure teams to align with NGRE standards


• Participate in code reviews, testing, and deployment to ensure high-quality, maintainable code