Preview Resume

2025

Business Type : Commercial banks

Last Position : Golang Developer

Period : July 2025  to  Present

Job Description :

Developed and maintained 100+ microservices, working with Kafka, MongoDB, PostgreSQL, Redis and Inmemory
caching applying coding standards and reusable patterns to improve maintainability, enhancing logging, error
handling, and validation.

Implement and optimize backend APIs in Golang to support Virtual Banking(VB) applications, Gold Trading Platform
in Paotang application, and mini-app platforms.

Created batch-processing services for gold trading orders reconciliation and reporting. Using Goroutines to improve
processing throughput and efficiency.

Designed and executed performance testing using k6 across 32 microservices and 162 APIs, for identifying
bottlenecks of the services.

Investigate and resolve 20+ critical issues, including unsafe pointer usage, race conditions, deadlocks, and memory
leaks, for improved system stability and a measurable reduction in production incidents.

2024

Business Type : Commercial banks

Last Position : Golang Developer

Period : October 2024  to March 2025

Job Description :

Developed microservices using the Golang programming language with the Echo web framework, ensuring efficient
API design and implementation following the project documentation and best practices.

Research and Proof of Concept (POC): Research on different technologies and design patterns, implementing POCs
to validate the feasibility of new solutions or approaches for the microservice.

Identified performance bottlenecks and fixed critical bugs, ensuring high reliability, and responsiveness of the
microservice. Focused on optimizing code for better resource management and scalability.

2021

Last Position : Senior Programmer Analyst

Period : June 2021  to September 2024

Job Description :

Designed and developed the microservice written in Golang, including RESTful APIs and Batch Processing
applications connected to MongoDB and Azure SQL Database. And works with over 100 million records. It adhered
to established design patterns to ensure high scalability and ease of maintenance.

Successfully integrated and implemented advanced architectural patterns such as Hexagonal Architecture and Clean
Architecture in various projects to enhance modularity, maintainability, and testability.

Optimized the microservice to reduce the processing time, dealing with data over 30 million records. Analyzed and
refactored the code that causes the defects in the microservice, e.g., memory leak.

Create CI/CD pipelines on Jenkins for deploying microservices.

Maintenance of Java applications, implementing new features, fixing bugs, improving performance, and enhancing
the application process.

Develop an automation script using Python and Shell Script to solve routine processes.

Develop an application interacting with Amazon S3 and MongoDB using Node.js

2020

Last Position : Programmer

Period : September 2020  to May 2021

Job Description :

- Gathering requirements from clients, analyzing and preparing the Requirement specification document - Revamp various Java application split cores service to microservice using Golang - Developed microservice using Golang to improve Application performance - Implemented RESTful Web services to communicate with other systems - Developed functions interacting with Amazon S3 and Mongo DB using Node.JS and Angular - Write Shell Script move logs file from Server to Network storageNAS - Work with the Operation team to deploy applications - Solve application incidents, analyze an issue, Fix bugs, monitor, enhance the application process

Last Position : Network Engineering

Period : April 2020  to August 2020

Job Description :

- Design network architecture, and configuration network devices - Problem-solving corrective detective and preventive , ascertain a new solution for improving network performance - Monitoring network status and services - Troubleshooting network issue - Configuration services on Ubuntu Linux Operation System - Tuning and hardening servers - Create automated tools for routine work - Receive requirements from users and design application architecture - Create application - Solve application incidents, analyze an issue, Fix bugs, monitor, enhance the application process, coding, test, deploy and technical documents user manual - Install OS, software, and hardware according to user requirements - Install network devices, personal computers, printers, IP phones, and CCTV - Advise OS software and hardware knowledge for end-user - Analyze and fix hardware issues - Analyze and fix network issues - Technical support for end-users issues - Monitor and report the network device's status - Create or Prepare KM knowledge management