「Hi」, my name is
Terris Zhao
Full-Stack Engineer
About Me
Full-Stack Engineer with 8+ years building scalable backend services and modern web interfaces for high-traffic, business-critical systems.
Delivers end-to-end features from architecture and API design through deployment, monitoring, and production support.
Skills & Technologies
Work Experience
Senior Software Engineer
UNI-ONE FOOD GROUP INC · Canada, Remote
Built core OMS + payment + inventory + delivery capabilities for a food service platform.
- Designed and delivered an end-to-end order management system using PHP and Spring Boot, supporting multiple order types and full lifecycle workflows.
- Built a delivery management platform with scheduling, driver dispatch, and real-time tracking, improving on-time delivery rate to **95%**.
- Integrated third-party services via REST APIs and deployed cloud-based services on AWS (EC2).
merge: Aug 2024 - Present
Senior Software Engineer
UNI-ONE FOOD GROUP INC · Canada, Remote
Built core OMS + payment + inventory + delivery capabilities for a food service platform.
- Designed and delivered an end-to-end order management system using PHP and Spring Boot, supporting multiple order types and full lifecycle workflows.
- Built a delivery management platform with scheduling, driver dispatch, and real-time tracking, improving on-time delivery rate to **95%**.
- Integrated third-party services via REST APIs and deployed cloud-based services on AWS (EC2).
merge: Apr 2023 - Jun 2024
Full-Stack Engineer
Xinyuan Lab (Beijing Xinyuan Lab Technology Co., Ltd.) · China
Led architecture and delivery for an LLM-powered SaaS interview platform (RAG + evaluation).
- Built an AI-powered interview platform using a RAG architecture with LLMs and vector database (Pgvector), enabling intelligent question generation and evaluation.
- Developed full-stack features using Next.js, TypeScript, and Spring Boot, delivering responsive and scalable web applications.
- Implemented Docker-based deployment and CI/CD pipelines, improving deployment efficiency and system reliability.
Full-Stack Engineer
Xinyuan Lab (Beijing Xinyuan Lab Technology Co., Ltd.) · China
Led architecture and delivery for an LLM-powered SaaS interview platform (RAG + evaluation).
- Built an AI-powered interview platform using a RAG architecture with LLMs and vector database (Pgvector), enabling intelligent question generation and evaluation.
- Developed full-stack features using Next.js, TypeScript, and Spring Boot, delivering responsive and scalable web applications.
- Implemented Docker-based deployment and CI/CD pipelines, improving deployment efficiency and system reliability.
Senior Java Developer
MokaHR (Beijing Sirius Technology Co., Ltd.) · China
Led core module optimization for an interview platform supporting 1,000+ concurrent users.
- Migrated backend services from Node.js to Java (Spring Cloud), transforming the system into a microservices architecture.
- Improved system performance and stability for **1000+ concurrent users** using Kafka (async processing) and Redis (caching).
- Resolved performance bottlenecks and integrated third-party services (e.g., Tencent Meeting), supporting large-scale remote interviews.
merge: Sep 2019 - Feb 2023
Senior Java Developer
MokaHR (Beijing Sirius Technology Co., Ltd.) · China
Led core module optimization for an interview platform supporting 1,000+ concurrent users.
- Migrated backend services from Node.js to Java (Spring Cloud), transforming the system into a microservices architecture.
- Improved system performance and stability for **1000+ concurrent users** using Kafka (async processing) and Redis (caching).
- Resolved performance bottlenecks and integrated third-party services (e.g., Tencent Meeting), supporting large-scale remote interviews.
merge: Aug 2017 - Jul 2019
Java Backend Engineer
Tongcheng Travel Holdings Limited · China
Owned core order + dispatch flows for a ride-hailing platform from creation to fulfillment.
- Participated in developing a ride-hailing platform’s intelligent dispatch system using Java, Spring Boot, MySQL, RocketMQ.
- Designed core order lifecycle workflows, improving system traceability and process standardization.
- Optimized high-concurrency performance using caching and asynchronous messaging.
Java Backend Engineer
Tongcheng Travel Holdings Limited · China
Owned core order + dispatch flows for a ride-hailing platform from creation to fulfillment.
- Participated in developing a ride-hailing platform’s intelligent dispatch system using Java, Spring Boot, MySQL, RocketMQ.
- Designed core order lifecycle workflows, improving system traceability and process standardization.
- Optimized high-concurrency performance using caching and asynchronous messaging.
Featured Projects
Get In Touch
I am currently open to new opportunities and would love to hear from you. Whether you have a question, want to discuss a project, or just want to say hi — feel free to reach out!