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I'm Kevin Piao, a Senior Full-Stack Developer with 5+ years of experience designing, developing, and maintaining scalable, cloud-based web applications. I specialize in building robust, secure, and high-performance systems with a focus on clean code, responsive design, and performance optimization. I enjoy mentoring junior engineers and collaborating closely with product and business stakeholders to deliver measurable value. I have a strong background in software architecture, microservices, DevOps practices, and CI/CD pipelines, and I work across frontend, backend, and cloud services to ship production-ready features for SaaS, marketplace, and internal platforms.…I'm Kevin Piao, a Senior Full-Stack Developer with 5+ years of experience designing, developing, and maintaining scalable, cloud-based web applications. I specialize in building robust, secure, and high-performance systems with a focus on clean code, responsive design, and performance optimization. I enjoy mentoring junior engineers and collaborating closely with product and business stakeholders to deliver measurable value. I have a strong background in software architecture, microservices, DevOps practices, and CI/CD pipelines, and I work across frontend, backend, and cloud services to ship production-ready features for SaaS, marketplace, and internal platforms.

Kevin Piao

Full Stack Developer, Back-End Developer, Front-End Developer, +3

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I'm Kevin Piao, a Senior Full-Stack Developer with 5+ years of experience designing, developing, and maintaining scalable, cloud-based web applications. I specialize in building robust, secure, and high-performance systems with a focus on clean code, responsive design, and performance optimization. I enjoy mentoring junior engineers and collaborating closely with product and business stakeholders to deliver measurable value. I have a strong background in software architecture, microservices, DevOps practices, and CI/CD pipelines, and I work across frontend, backend, and cloud services to ship production-ready features for SaaS, marketplace, and internal platforms.…I'm Kevin Piao, a Senior Full-Stack Developer with 5+ years of experience designing, developing, and maintaining scalable, cloud-based web applications. I specialize in building robust, secure, and high-performance systems with a focus on clean code, responsive design, and performance optimization. I enjoy mentoring junior engineers and collaborating closely with product and business stakeholders to deliver measurable value. I have a strong background in software architecture, microservices, DevOps practices, and CI/CD pipelines, and I work across frontend, backend, and cloud services to ship production-ready features for SaaS, marketplace, and internal platforms.

Available to hire

I’m Kevin Piao, a Senior Full-Stack Developer with 5+ years of experience designing, developing, and maintaining scalable, cloud-based web applications. I specialize in building robust, secure, and high-performance systems with a focus on clean code, responsive design, and performance optimization. I enjoy mentoring junior engineers and collaborating closely with product and business stakeholders to deliver measurable value.

I have a strong background in software architecture, microservices, DevOps practices, and CI/CD pipelines, and I work across frontend, backend, and cloud services to ship production-ready features for SaaS, marketplace, and internal platforms.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Language

English

Fluent

Work Experience

Full-Stack Developer

January 1, 2023 - Present

Designed, built, and maintained production-scale full-stack web applications using React, Next.js, Node.js, Express.js, PostgreSQL, MongoDB, and Redis; led development of a customer-facing SaaS platform with authentication, billing, dashboards, and role-based access; maintained 99.9% uptime across multiple production releases and met release deadlines over a 24-month delivery cycle; refactored legacy codebase to reduce bugs and incident response times; implemented secure REST and GraphQL APIs and introduced Redis caching to improve performance.

Junior Full-Stack Developer

January 1, 2021 - December 31, 2022

Contributed to the development and maintenance of web applications in an Agile environment, supporting features used by 1,000–5,000 active users; developed responsive UIs with HTML/CSS/JavaScript and React; assisted backend API development with Node.js and Express; supported PostgreSQL and MongoDB integrations and helped improve deployment workflows.

Senior Full-Stack Developer

January 1, 2023 - Present

Designed, built, and maintained production-scale full-stack web applications using React, Next.js, Node.js, Express.js, PostgreSQL, MongoDB, and Redis, serving 5,000–50,000+ MAU across SaaS, marketplace, and internal platforms for clients in North America and Europe. Led the development of a customer-facing SaaS platform with authentication, billing, dashboards, and RBAC; maintained 99.9% uptime and met release deadlines over a 24-month delivery cycle. Architected backend services using microservices for independent deployments, reducing release rollback incidents to zero. Built secure REST and GraphQL APIs with Express, implementing JWT/OAuth, rate limiting, and input validation, reducing security-related incidents by ~75%. Refactored a junior-built codebase (~120k LOC), reducing monthly production bugs by ~40% and incident resolution time from 2.5 days to 1.6 days. Translated complex Figma designs into pixel-perfect, responsive UIs, improving engagement. Optimized frontend performa