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**Keven Chhen**
Senior Full Stack Software Engineer
209.800.3130
kchhen120@gmail.com
### Summary
Senior Software Engineer (7+ years) with expertise in **React, Node, TypeScript, and AWS**. Proven track record in enhancing user experiences, optimizing performance, and leading full-stack development. Achieved **80% improvement in user engagement** through innovative solutions.
### Experience
**Founding Full Stack Engineer**
*Energy Raven, Piedmont, CA | 2023.10 – 2024.4*
- Built AI-powered home energy assessment platform with **React, Redux, TypeScript, Tailwind CSS, and Vite**.
- Developed interactive data visualizations using **D3.js**, boosting user engagement by **80%**.
- Integrated third-party APIs and automated CI/CD pipelines using **GitHub Actions**.
- Deployed scalable AWS resources via **Terraform** and resolved critical production issues.
**Senior Software Development Engineer**
*Thoughtworks, San Francisco, CA | 2020.6 – 2023.7*
- Migrated e-learning SaaS to **event-driven microservices on AWS (Lambda, ECS, DynamoDB)**.
- Enhanced admin dashboard with **React, TypeScript, and Material UI**.
- Secured APIs using **OAuth, Okta, and JWT**; optimized performance with **GraphQL, CDN, and caching**.
- Mentored developers and improved platform scalability.
**Full Stack Engineer**
*TheoremOne, Los Angeles, CA | 2017.3 – 2020.4*
- Built **e-commerce and SaaS platforms** using **React, Node, MongoDB, and PostgreSQL**.
- Integrated **Google Maps API** for hospitality booking and **Stripe** for payments.
- Optimized load times by **91%** (4s → 0.35s) using lazy loading and memoization.
### Skills
- **Frontend**: React, Redux, Vue.js, Next.js, HTML/CSS, Tailwind CSS, Material UI
- **Backend**: Node.js, Express.js, Nest.js, Python/Django
- **Cloud/DevOps**: AWS, GCP, Docker, Kubernetes, Terraform, GitHub Actions
- **Databases**: PostgreSQL, MongoDB, MySQL
- **Testing**: Jest, Mocha, Cypress
### Education
**BSc in Computer Science**
*The Hong Kong University of Science and Technology | 2012.9 – 2016.11*
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