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About Jingya Zhang

Professional Profile

Backend Software Engineer @ Amazon | 8+ Years Experience | System Design Expert

Summary

Backend engineer with 8+ years of experience delivering high-impact, scalable systems. Strong in API design, backend optimization, and driving solutions from concept to production. Proven track record of building customer-facing features that serve millions of users.

Professional Background

Current Role

Software Development Engineer Amazon - Delivery Experience | Greater Seattle Area October 2024 - Present

  • Leading core Eligibility system for Add-To-Delivery feature enabling customers to add items to existing orders with consolidated/same-time delivery
  • Designed and built layered eligibility APIs covering customer eligibility, product offer eligibility, and order-based eligibility
  • Driving high-impact solutions that enhance customer delivery experience

Career Highlights

Experience

  • Led core eligibility systems for Amazon delivery features
  • Re-designed inventory planning auditing workflow at scale
  • Migrated critical services from legacy infrastructure to AWS
  • Drove solutions from concept through production
  • Expert in API design and distributed systems
  • Specialized in microservices and event-driven architecture
  • Strong focus on scalability and system reliability
  • Large-scale data processing and optimization
  • Built multimodal features serving millions of Alexa users
  • Enabled voice-enabled checkout and in-store shopping experiences
  • Shipped company-wide security services for 70,000+ AWS accounts
  • Streamlined workflows reducing reactive fire-drills

Work Experience

Amazon - Delivery Experience

Software Development Engineer | October 2024 - Present

  • Led core Eligibility system for Add-To-Delivery feature
  • Designed layered eligibility APIs for customer, product, and order eligibility
  • Enhanced customer delivery experience with consolidated order capabilities

Amazon - Supply Chain Optimization Technology

Software Development Engineer | January 2024 - October 2024

  • Re-designed Amazon Retail inventory planning auditing workflow improving validation speed
  • Sped up validation cycles and reduced reactive fire-drills
  • Enabled self-serve automation and CI/CD deployment flows

Amazon - Alexa Shopping

Software Development Engineer | May 2019 - January 2024

Key Features Built:

  • Multimodal Shopping Experience - Designed and shipped voice + UI features for Alexa enabling real-time item availability and store location info for Whole Foods and Amazon Fresh
  • "Alexa, does Whole Foods have cherry tomatoes in stock?"

  • "Alexa, where can I find mint-flavor chocolate at Fresh?"

  • Voice-Enabled Checkout - Built multimodal checkout on Alexa (previously only available on web/mobile)

  • "Alexa, checkout."

  • In-Store Mode - Built voice-enabled in-store mode for mobile app to streamline Fresh/Whole Foods checkout with Prime pricing

  • "Alexa, take me to in-store mode."

  • Infrastructure Migration - Led migration of service from legacy infrastructure to AWS (ECS + DynamoDB), boosting reliability and scalability

Amazon - Consumer Cloud Security

Software Development Engineer | May 2017 - May 2019

  • Shipped company-wide services for security monitoring, violation detection, and risk analysis across 70,000+ AWS accounts
  • Worked on enterprise permission management integrated with HR system supporting ~950,000 users with hierarchical RBAC

Education

Academic Background

M.S. Computer Engineering (GPA: 3.75/4.0) New Jersey Institute of Technology

Skills & Expertise

  • Programming

    Java, JavaScript, SQL

  • Cloud & Infrastructure

    AWS (ECS, EC2, DynamoDB, Lambda), Docker, CI/CD

  • Backend & Architecture

    Distributed Systems, Microservices, Event-Driven Architecture, Spring

  • Data & Tools

    Large-scale Data Processing, Git, System Optimization

Interests & Passions

Beyond Work

  • 💡 System Design - Passionate about building scalable, reliable systems
  • 🚀 Innovation - Driving solutions from concept to production
  • 📚 Learning - Continuously exploring new technologies and best practices
  • 👪 Family - Balancing professional excellence with quality family time

Connect

Professional Links

Professional Philosophy

"Build scalable systems that solve real problems and delight customers."

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