A leading US-based print-on-demand and fulfillment company, processing millions of orders annually for e-commerce businesses worldwide.
Technical Manager
Jan 2026 —
Present
- Leading the entire technology department of 20+ members including Backend, Frontend, Fullstack, QA, DevOps, Data, and Product teams
- Maintaining hands-on involvement in coding and architecture decisions alongside the team, ensuring technical depth in leadership
- Defining technical strategy and roadmap aligned with business objectives, balancing innovation with operational stability
- Researching and applying LLM-powered AI tools (Copilot, Claude Code, custom agents) to boost developer productivity and streamline engineering workflows
- Establishing engineering processes, OKRs, and performance metrics to scale team effectiveness across all tech functions
- Driving hiring, mentorship, and career development programs to build a high-performing engineering organization
AWS (CloudFront, S3, Lambda, API Gateway, CloudWatch)
Go
gRPC/Protobuf
REST API
Kubernetes
Helm
Docker
GitLab CI/CD
PostgreSQL
Redis
WebSocket
SendGrid
Elasticsearch
Prometheus
OpenTelemetry
Grafana
Key Projects
Product-Engineering-QC Collaboration Framework
— Cross-functional collaboration framework aligning Product, Engineering, and QC teams
Technical Lead
Oct 2023 —
Dec 2025
- Spearheaded the architectural transformation from legacy PHP monolith to scalable Go microservices, reducing system latency by 60%
- Led a cross-functional team of 8 engineers, establishing coding standards and review processes that improved code quality metrics by 40%
- Architected event-driven systems handling 10K+ orders/day with 99.9% uptime SLA
- Drove DevOps culture adoption with comprehensive observability stack (Prometheus, Grafana, OpenTelemetry)
Key Projects
Cloud Infrastructure Platform
— Enterprise-grade cloud infrastructure on AWS with multi-region deployment and disaster recovery
Software Development Framework
— Standardized development framework and tooling across all engineering teams
POD-Fulfillment Seller Dashboard
— Comprehensive seller portal for print-on-demand merchants to manage orders, products, and fulfillment workflows
Gearment Website
— Public-facing marketing website and customer onboarding platform
Warehouse Management System (WMS)
— End-to-end warehouse operations platform managing inventory, picking, packing, and shipping workflows
Internal Operation Dashboard
— Centralized admin platform for customer support, order management, and business operations
Singapore's leading AI-powered EdTech platform, serving 300K+ students across Southeast Asia with personalized learning experiences.
Technical Lead
Aug 2022 —
Sep 2023
- Led the modernization initiative to decompose PHP monolith into Go microservices, achieving 3x improvement in API response times
- Designed and implemented core platform services (IAM, Chat, File Management) supporting 2K+ concurrent users
- Established engineering best practices including automated testing pipelines, reducing production incidents by 50%
- Mentored junior engineers and conducted technical interviews for team expansion
GCP (Cloud Pub/Sub, Logging, Tracing, Storage)
Go
gRPC/Protobuf
REST API
Kubernetes
Helm
Docker
GitLab CI/CD
PostgreSQL
Redis
WebSocket
Elasticsearch
Prometheus
OpenTelemetry
Grafana
Key Projects
GenieAsk
— Real-time communication platform enabling students to interact with tutors for instant academic support
GenieSmart
— AI-powered learning platform for daily practice tests and personalized study sessions
Vietnam's leading super-app ecosystem with 25M+ users, offering ride-hailing, delivery, fintech (Cake Digital Bank), and lifestyle services.
Software Engineer Lead
May 2022 —
Aug 2022
- Led Platform team of 6 engineers, delivering internal PaaS/SaaS products that accelerated feature development across business units
- Drove technical roadmap for shared infrastructure serving beTransport, beDelivery, and Cake Digital Bank
- Championed platform engineering practices, reducing new service onboarding time from weeks to days
GCP (Cloud Pub/Sub, Logging, Tracing, Storage)
Go
gRPC/Protobuf
REST API
Kubernetes
Helm
Docker
GitLab CI/CD
MySQL
Redis
WebSocket
Elasticsearch
Prometheus
OpenTelemetry
Grafana
Key Projects
BePhoto
— High-throughput media processing service handling image uploads, transformations, and CDN distribution
BeWebRTC
— Real-time video/voice communication platform for customer support and driver verification
BeExam
— Online examination system for driver certification and compliance training
BeGateway
— Unified API gateway providing authentication, rate limiting, and request routing for all frontend applications
Senior Software Engineer
Feb 2021 —
Apr 2022
- Core contributor to Platform-SaaS team, building shared services powering beTransport, beDelivery, beFlight, and Cake Digital Bank
- Designed and maintained SDKs enabling rapid development of secure, high-performance applications across teams
- Authored technical documentation and engineering blog posts, contributing to knowledge sharing culture
Key Projects
BeKit 2.0
— Next-generation internal framework for bootstrapping Go microservices with production-ready configurations
BeLab
— Centralized platform SDK providing unified libraries for authentication, pub/sub, feature flags, WebSocket, logging, and HTTP clients
BeAPI Platform
— Backend-for-frontend infrastructure enabling web and mobile apps to interact with microservices through unified endpoints
BeChatBox
— Multi-tenant customer support chat platform with intelligent routing and automated responses
BeCallCenter
— WebRTC-based voice call center connecting customers with support agents in real-time
BeMailer
— Centralized transactional email service with template management, scheduling, and high-throughput delivery
BeClocking
— Workforce management system tracking agent activities, shifts, and performance metrics
BeQuesting
— Enterprise ticketing system for internal support requests with SLA management and escalation workflows
BeLeadOnboarding
— End-to-end driver onboarding platform managing KYC verification, document collection, and digital contract signing
Core technology arm of VNLife Group, building e-commerce, payment, and logistics solutions for Vietnam's largest retail ecosystem including Phong Vu and VNShop.
Backend Software Engineer
Jul 2018 —
Feb 2021
- Developed and maintained microservices powering Teko's e-commerce platform serving millions of customers
- Built CI/CD pipelines and infrastructure automation, reducing deployment time from hours to minutes
- Contributed to company-wide Go migration initiative, improving system performance and developer productivity
Python
Go
Kotlin
gRPC/Protobuf
REST API
Flask
Django
Celery
Scrapy
Spring Boot
Kubernetes
Helm
Docker
Ansible
GitLab CI/CD
MySQL
SQL Server
MongoDB
Elasticsearch
Redis
Memcached
RabbitMQ
Kafka
Debezium CDC
Prometheus
OpenTelemetry
Grafana
Jaeger
Bazel
Key Projects
Integration System
— Bridge system connecting modern microservices with legacy accounting infrastructure
Market Eyes
— Competitive intelligence platform with automated daily crawling and price comparison analytics
Order Management System v1
— Unified order processing platform for offline retail operations (showrooms)
Order Management System v2
— Extended platform supporting multi-channel commerce (web, mobile, seller apps) with multi-tenant architecture
Order Capturing & Shopping Cart
— Decoupled cart and checkout services extracted from monolithic OMS for independent scaling
Tekit & Tekone
— Company-wide Go SDK (Tekit) and monorepo platform (Tekone) standardizing development practices
Research laboratory at Vietnam's top science university, bridging academic AI research with real-world applications in education technology.
Software Engineer (Contract)
Jun 2017 —
Nov 2018
- Developed full-stack web applications for AI-powered educational platforms
- Built VnSigma - a tutor-student matching platform connecting educators with learners
- Created Vietcap - speech-to-text system for Vietnamese video captioning
- Contributed to Khanviet MOOC platform (EDX-based), implementing code grading and analytics
- Co-authored 'Python for Beginners' textbook and delivered programming courses
MongoDB
MeteorJS
jQuery
PostgreSQL
Open edX (Django)
Key Projects
VnSigma
— Tutor-student matching platform connecting educators with learners based on subjects, availability, and preferences
Vietcap
— Speech-to-text system for automatic Vietnamese video captioning using AI models
Khanviet MOOC
— Vietnamese adaptation of Khan Academy built on Open edX platform
$ cat education.txt
Bachelor of Information Technology
VNUHCM – University of Science
Honors Program
GPA: 8.82/10
Ready to build something great? Always looking for interesting challenges.
vchitai@terminal:~/career$ vchitai@terminal:~$