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Senior Full Stack Developer with expertise in React, .NET Core, AWS, microservices, and DevOps. Proven track record in designing scalable, secure SaaS applications, mentoring teams, and modernizing legacy systems for cloud-native architectures.…

Zhengwei Li

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Senior Full Stack Developer with expertise in React, .NET Core, AWS, microservices, and DevOps. Proven track record in designing scalable, secure SaaS applications, mentoring teams, and modernizing legacy systems for cloud-native architectures.…

Available to hire

Senior Full Stack Developer with expertise in React, .NET Core, AWS, microservices, and DevOps. Proven track record in designing scalable, secure SaaS applications, mentoring teams, and modernizing legacy systems for cloud-native architectures.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

English

Fluent

Work Experience

Senior Full Stack Developer & DevOps Engineer at Ascent

September 1, 2024 - December 1, 2025

Architected microservices using .NET Core, C#, and MediatR with Docker on AWS Elastic Beanstalk and AWS Lambda, improving API response times by 35% and supporting 99.9% uptime for multi-tenant SaaS workloads. Developed responsive React UIs with TypeScript, Hooks, Redux Toolkit, and Material UI, increasing user task completion rates and reducing UI defects.

Senior Full Stack Developer at WithClutch

May 1, 2021 - August 1, 2024

Engineered loan and account origination workflows using React, TypeScript, Redux, and Material UI integrated with .NET Core REST APIs; modernized legacy MVC services into cloud microservices on AWS; implemented secure authentication with Identity Server, Auth0, and AWS Cognito for OAuth2/OIDC; built CI/CD pipelines and IaC; led QA and testing.

Full Stack Developer at Elemeno Health

February 1, 2019 - April 1, 2021

Developed accessible UI components in React and JavaScript; implemented backend endpoints in .NET Core and Node.js; tuned SQL queries to improve critical workflow performance; introduced unit/integration testing and containerized services for AWS deployment with observability.