’m a results-driven Software Engineer with strong experience in full-stack and backend development. I’ve built scalable web platforms and intelligent systems using Java, Spring Boot, Python, React, and AWS. My past projects include developing an AI-powered chatbot for an e-commerce platform, a hospital information system handling 100K+ operations per second, and an interactive education app with live streaming and personalized learning features. I’m passionate about writing clean, efficient code, optimizing system performance, and delivering solutions that truly make an impact. Clients appreciate my reliability, technical depth, and ability to communicate complex ideas clearly.

Guoliang Chen

’m a results-driven Software Engineer with strong experience in full-stack and backend development. I’ve built scalable web platforms and intelligent systems using Java, Spring Boot, Python, React, and AWS. My past projects include developing an AI-powered chatbot for an e-commerce platform, a hospital information system handling 100K+ operations per second, and an interactive education app with live streaming and personalized learning features. I’m passionate about writing clean, efficient code, optimizing system performance, and delivering solutions that truly make an impact. Clients appreciate my reliability, technical depth, and ability to communicate complex ideas clearly.

Available to hire

’m a results-driven Software Engineer with strong experience in full-stack and backend development. I’ve built scalable web platforms and intelligent systems using Java, Spring Boot, Python, React, and AWS.

My past projects include developing an AI-powered chatbot for an e-commerce platform, a hospital information system handling 100K+ operations per second, and an interactive education app with live streaming and personalized learning features.

I’m passionate about writing clean, efficient code, optimizing system performance, and delivering solutions that truly make an impact. Clients appreciate my reliability, technical depth, and ability to communicate complex ideas clearly.

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Experience Level

Expert
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Expert
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Work Experience

Software Engineer Intern at ByteDance
August 1, 2025 - October 19, 2025
Built a customer service chatbot for TikTok Mall 'Pay Later' issues to replace the traditional FAQ-based approach, improving overall support efficiency by 20% and boosting user satisfaction by 15%. Fine-tuned the Doubao base model with PyTorch to build an AI system capable of intent recognition, issue classification, and automated resolution, improving intelligent problem-resolution accuracy to 95%. Developed an announcement configuration function on the helper center of TikTok's small using the Hertz framework in Go, enabling content configuration, approval workflows, status management, and customized trigger conditions, which reduced merchant workload by 35% and improved operational efficiency by 20%.
Software Engineer Intern at MyEdmaster
April 1, 2025 - October 19, 2025
Developed backend modules with Django, implementing core features including user recharge, membership activation, and permission control, achieving a 22% user conversion rate within six months after launch. Built user-facing interfaces using React and Redux, covering recharge, balance display, and membership features, which improved 25% frontend rendering speed and overall user experience. Optimized the data access layer with Django ORM and PostgreSQL by implementing query pagination and integrating Redis caching, improving database efficiency and reducing API response time to 65% of the original. Implemented global exception handling with Middleware and centralized logging using Python Logging and Sentry, enhancing system maintainability and fault traceability, and reducing the department's debugging time by 20%.
Software Engineer at Cognizant
September 1, 2023 - October 19, 2025
Developed backend services with SpringBoot for a hospital system, sustaining stable responsiveness and performance under 100k+ OPS workloads in a distributed high-concurrency environment. Implemented secure authentication and payment workflows by integrating Spring Security, JWT, and payment SDKs including Visa, PayPal, and Apple Pay, ensuring safe and reliable transactions. Optimized concurrency and asynchronous workflows by leveraging Amazon SQS and Optimistic Locking, eliminating thread contention bottlenecks and improving 20% execution efficiency. Enhanced scalability and decoupling by using Redis as a caching layer, applying MySQL read-write separation and adopting ShardingSphere for horizontal sharding, which improved database query performance by 40%.
Software Engineer Intern at ByteDance
August 1, 2025 - October 26, 2025
Built a customer service chatbot for TikTok Mall Pay Later issues to replace a traditional FAQ-based approach, improving overall support efficiency by 20% and boosting user satisfaction by 15%. Fine-tuned the Doubao base model with PyTorch to enable intent recognition, issue classification, and automated resolution, achieving 95% accuracy in intelligent problem resolution. Developed an announcement configuration function in the helper center using the Hertz framework in Go, enabling content configuration, approval workflows, status management, and customized trigger conditions, reducing merchant workload by 35% and improving operational efficiency by 20%.
Software Engineer Intern at MyEdmaster
April 1, 2025 - October 26, 2025
Developed backend modules with Django implementing core features including user recharge, membership activation, and permission control, achieving 22% user conversion within six months after launch. Built user-facing interfaces using React and Redux for recharge, balance display, and membership features, improving frontend rendering speed and user experience. Optimized the data access layer with Django ORM and PostgreSQL by implementing query pagination and Redis caching, reducing API response time to 65% of the original. Implemented global exception handling with Middleware and centralized logging using Python logging and Sentry, enhancing maintainability and reducing debugging time by 20%.
Software Engineer at Cognizant
September 1, 2023 - October 26, 2025
Developed backend services with SpringBoot for a hospital system, sustaining stable responsiveness under 100k+ OPS workloads in a distributed high-concurrency environment. Implemented secure authentication and payment workflows by integrating Spring Security, JWT, and payment SDKs including Visa, PayPal, and Apple Pay, ensuring safe and reliable transactions. Optimized concurrency and asynchronous workflows by leveraging Amazon SQS and Optimistic Locking, eliminating thread contention bottlenecks and improving 20% execution efficiency. Enhanced scalability and decoupling by using Redis as a caching layer, applying MySQL read-write separation and adopting ShardingSphere for horizontal sharding, which improved database query performance by 40%.

Education

Master’s Degree in Computer Science at Northeastern University Seattle, USA
September 1, 2023 - December 1, 2025
Bachelor’s Degree in Computer Science at Shanghai Institute of Technology University
September 1, 2019 - June 1, 2023
Master’s Degree in Computer Science at Northeastern University Seattle
September 1, 2023 - December 1, 2025
Bachelor’s Degree in Computer Science at Shanghai Institute of Technology University
September 1, 2019 - June 1, 2023

Qualifications

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Industry Experience

Software & Internet, Professional Services, Healthcare, Education