Hi, I am
Michael 👋 Huu Tran Chi — Software Engineer & Technical Leader
Building cloud-native systems, microservices & AI pipelines for clients in Japan, Korea, Singapore and Vietnam, from Ho Chi Minh City.
Open to work · Remote / Ho Chi Minh City · GMT+7
I turn messy systems into calm, fast ones.
Huu Tran Chi (Michael) is a software engineer and technical leader based in Ho Chi Minh City, Vietnam. Over 7+ years he has designed microservices and cloud-native platforms on AWS and Azure, built AI document-processing pipelines, and led cross-functional teams for clients in Japan, South Korea, Singapore and Vietnam. Recent work includes cutting a high-traffic platform's AWS bill by 25% and shipping a Gemini / GPT OCR pipeline that reads engineering blueprints.
Lalatok Inc
Software Engineer, LeaderDec 2024 – PresentMapo-gu, Seoul, South Korea (Remote)
- Architect and implement highly available microservices on AWS using Golang, gRPC, and PostgreSQL.
- Lead integration with third-party partners and coordinate backend engineering workflows.
- Design cloud infrastructure using Terraform to establish automated, production-grade infrastructure as code.
- Collaborate directly with product owners to translate business objectives into low-latency technical solutions.
Vitalify Asia
Software Engineer, Technical LeaderJan 2023 – PresentDistrict 3, Ho Chi Minh City, Vietnam
- Led multiple high-stakes client projects for Daiwa Connect, Omron Healthcare, Helix Tospo, and Vietop.
- Redesigned Helix Tospo AWS architecture, cutting monthly cloud expenditure by 25% while bolstering system stability.
- Engineered AI-powered document OCR pipeline using Google Gemini, OpenAI GPT, and Azure Document Intelligence for KENTEM.
- Directed DevOps & deployment strategies across NestJS, Next.js, Vue.js, Laravel, GraphQL, and AWS CDK.
VNPT IT
Frontend EngineerFeb 2022 – Jan 2023Ha Noi City, Vietnam
- Developed core enterprise resource planning (ERP) modules utilizing Vue.js and WinForms for national telecom operator.
- Executed multi-layer integration testing across REST APIs, database queries, and complex UX components.
JIENIE-LAB ASIA
Software EngineerOct 2020 – Feb 2022Tan Binh District, Ho Chi Minh City
- Delivered production UI/UX features for major E-commerce platform (J2 - EC).
- Built baseline micro-frontend architecture foundation to optimize team velocity and modular deployment.
- Optimized frontend bundle sizes and backend SQL queries for improved response times under load.
MOR Software JSC
Software EngineerMay 2020 – Oct 2020District 10, Ho Chi Minh City
- Contributed backend Java Spring Boot microservices code for high-volume e-commerce portal.
- Triage and fixed critical performance bottlenecks across API endpoints and UI renders.
E-Platform Solution
Frontend EngineerApr 2019 – May 2020District 1, Ho Chi Minh City
- Implemented pixel-perfect user interfaces from design specs using Vue.js, Bootstrap, and Vuex.
- Collaborated with backend engineers to integrate RESTful endpoints and ensure seamless UX.
What I can do for your team.
AWS & Azure architectures designed for scale and cost. Everything as code with Terraform, AWS CDK and CloudFormation — plus CI/CD that ships without drama.
Building scalable backend, cloud & full-stack systems
Achieved through architecture redesign for high-traffic platform
Spanning Japan, Korea, Singapore, and Vietnam clients
Terraform, AWS CDK, CloudFormation, gRPC & Microservices
Selected work
How I solve hard problems.
Scaling a high-traffic microservices backend on AWS
An AWS microservices backend serving thousands of requests per second, using ECS autoscaling, Redis caching and async processing to relieve PostgreSQL.
Read case studyCache sync off the request pathMaking cache synchronisation resilient with SQS, retries and a DLQ
Decoupling PostgreSQL writes from Redis updates with an SQS worker, retries, a DLQ and CloudWatch alarms, so cache failures stop affecting the API.
Read case studyWebSockets across N instancesA realtime social platform that scales horizontally
Go, WebSocket and Redis realtime layer letting ECS instances scale out while users on different servers still get each other's events; PostgreSQL + PostGIS.
Read case studyUNIQUE(transaction_id)Removing a webhook race condition with database-level idempotency
Replacing a check-then-insert on subscription webhooks with a UNIQUE constraint, so concurrent duplicate deliveries can no longer create duplicate transactions.
Read case studyIncident → 7 independent signalsProtecting SMS OTP endpoints from automated abuse
Layered abuse detection for SMS OTP: IP, device, user-agent, phone-number patterns, geography, request signing and rate limits instead of one IP limit.
Read case studyTrade-offs, not heroicsLeading delivery decisions under deadline pressure
How I handle ship-fast vs scalability trade-offs and late requirement changes as a backend Tech Lead: break down, estimate with the team, clarify scope, decide.
Read case studyFrom first call to go-live.
Discover
Dig into goals, constraints and the current system. Ask the annoying questions early.
Design
Sketch the architecture, data flow and trade-offs. Agree on what 'done' means.
Build
Ship in small, tested slices with infrastructure as code from day one.
Launch
Zero-downtime release, monitoring, and a cost/perf review after go-live.
Got a system to build? Let’s talk.
Open to senior engineering, tech-lead and cloud consulting roles. I reply within a day.