Quan Tong Email & Phone Number

- Designed and implemented gRPC backend server for Gotoko mobile app and internal portal.- Implemented broadcast notification for various channel types, such as email, SMS, push notification, and app inbox, including the integration testing process.- Optimized the login flow to automatically update user roles after sign-up.- Built a zero-downtime.

Hanoi, Hanoi, Vietnam

• Design and build high performance and reliable software with clean code.
• Write scalable RESTful and gRPC-based APIs for our clients and partners.
• Refactor code to make it easier to read, simpler to understand, and faster to update.
• Automate integration testing with Drone CI / GitHub Actions and Docker Compose.
• Run unit tests in parallel to improve the execution time by 30%.
• Speed up the CI build time by 70-80% with incremental builds.

- Built a dedicated social network solution for the electronic music industry based on microservices architecture using gRPC and Protobuf.- Developed tools to configure infrastructure, cleanup old backup snapshots, scrape metrics, etc- Created some Drone plugins to integrate with an issue tracker.

- Developed an innovative VPN combines cutting-edge technology (microservices, blockchain, etc) with beautiful apps for all of your devices.- Setup infrastructure to run a VPN stack and create installer files (including automatic updates feature) for it on multiple platforms: macOS, Windows, Linux.- Migrated legacy applications into Docker and Kubernetes..

Vietnam

- Responsible for administration and availability of 80 servers - Setup high availability for important services: MySQL, OpenLDAP, Redis, NFS, Postfix, etc. - Developed Python scripts using Fabric for simplifying system administration tasks; created custom plugins for monitoring system with Nagios, Check_MK and PNP4Nagios. - Installed, configured, and.

Vietnam

- Setup technical facilities for Hanoi Branch to connect with the headquarter in Ho Chi Minh city, included making a wifi authentication system with FreeRADIUS and Active Directory.- Built a centralized logging system with syslog-ng and Splunk.- Coordinated with a Thailand team to deploy the core securities solutions (written by Freewill) on AIX 5.3 and.