Full Stack Developer

Reality+

1. Developed a management platform that effectively monitor the resources and data from products and customers using TypeScript, Python, and Rust.
2. Used diverse languages including Node.js and Pivotal Cloud Foundry to transform a legacy application into a cloud-hosted system capable of handing x10 traffic scale.
3. Implemented a serverless architecture using AWS Lambda and API Gateway to reduce operational costs and increase application uptime.
4. Utilized composite indexing and optimized queries for efficient data retrieval and implemented a relational database schema overhaul for achieving reduction in query response time.
5. Leveraged Tokio to develop high-performance and scalable application with efficient task management and I/O handling.
6. Built a real-time notification system using WebSockets and Node.js, enhancing user engagement and interaction.
7. Worked containerization with Docker and orchestration with Kubernetes to improve system resilience and agility.
8. Implemented Amazon CloudFront CDN to serve static content across multiple geographical locations for improving application performance and reducing server load.
9. Integrated Auth0 from Okta to enable single sign-on and multi-factor authentication that provide more granular control over user permissions.
10. Designed and wrote CI/CD pipelines using GitHub Actions, and Jenkins and deployed them to AWS services.

Full Stack Developer

Venly

1. Developed the APIs of a new eCommerce/digital platform using Node.js and Python.
2. Implemented a single-page, live-map platform to show users and shops integrating with google map.
3. Spearheaded the development of multiple microservices using JavaScript/TypeScript, enhancing the scalability and maintainability of the web application.
4. Developed a custom caching solution using Redis to improve data retrieval times, reducing server response times by 30%.
5. Designed and implemented a disaster recovery strategy using AWS S3 and Glacier for data backup and recovery, improving data resilience and business continuity.
6. Integrated Elasticsearch for advanced search functionality, improving search results speed and relevance.
7. Utilized Nginx as a reverse proxy and load balancer to distribute network traffic efficiently among multiple servers.
8. Actively participated in Agile development processes and effectively managed project activities using ClickUp.

Backend Developer

Yummy Tech

1. Developed from scratch an interactive web conference video platform that hosted video rooms with text and voice capabilities using WebRTC, Socket.IO, and jQuery.
2. Implemented a scalable and secure database solution using MongoDB and AWS RDS, enhancing data retrieval speeds and reducing server load.
3. Used AWS Auto Scaling to automatically adjust compute resources based on traffic patterns, ensuring consistent performance.
4. Optimized the performance by moving aggregated data to Redis server storage.
5. Worked closely with front-end developers to implement seamless data exchange using WebSockets, enhancing real-time communication within the application.
6. Implemented and maintained application performance monitoring (APM) using Datadog, tracking custom metrics and optimizing application performance.
7. Wrote unit, end-to-end, and integration tests using Mocha and Jest and wrote CI/CD pipelines using GitHub Actions.

Web Developer

Mercari

1. Worked on a team to develop a multi-tenant SaaS application backend, ensuring scalability and isolation for each cli
2. Translated the design team's UX wireframes and mockups into responsive, interactive features using HTML, CSS, and JavaScript.
3. Developed a distributed logging system using Logstash and Elasticsearch for real-time monitoring and troubleshooting.
4. Worked with the agile team to migrate a legacy company website to React and Sass.
5. Redesigned the homepage, PDP, listing pages, checkout, cart page, 3rd-party payment systems, variations, blog articles, glossary, and more.
6. Developed custom JavaScript applications with a focus on performance.

Nagoya University

Computer Science