About
(Alex) Hung Nguyen
Senior Backend & Platform Engineer · Calgary, Canada
I’m a backend and platform engineer with 15+ years building the systems companies actually run on — digital banks, lending platforms, payment systems, trade finance, and the customer-facing products on top of them — taken from early concept to production scale.
These days I work primarily in Go, Node.js, and TypeScript, building microservices, event-driven systems, and API platforms on AWS. My background is unusually deep on the infrastructure side: I started in systems and database administration before moving into integration and software engineering, so I’m as comfortable reasoning about data models and deployment pipelines as about application code.
Most of my work has been in fintech and payments, where reliability isn’t optional — including platforms running at 99.99% availability and serving tens of thousands of daily users. Alongside building, I’ve led and grown engineering teams and set delivery practices, CI/CD, and architecture standards. I bring that judgment to hands-on work, not away from it. This site is where I show that work through clean-room R&D builds and write about how it’s done.
Engineering focus
- Software architecture
- Distributed systems
- Fintech / transaction processing
- CI/CD infrastructure
- Cloud infrastructure (AWS & GCP)
- Engineering leadership
What I work with
- Languages
- GoNode.jsTypeScriptJava
- Architecture
- MicroservicesEvent-drivenDistributed systemsDomain-driven designAPI platforms
- Data & messaging
- PostgreSQLMySQLRedisKafkaRabbitMQ
- Cloud & DevOps
- AWSGCPAzureDockerKubernetesCI/CD
Work history
Senior Software Engineer · TechCoop
Agri-fintech; previously VP, Product & Engineering (hands-on architecture & delivery). Architected Techcoop 2.0, a cloud-native export trade-finance platform, and the FarmGate ERP behind a $20M first-year business line; led the AnchorApp monolith → microservices modernization (activation 10% → 80%).
Engineering Manager & Architect · GalaxyOne
Venture studio. Led architecture and delivery taking three startups 0→1 with teams of 30+. Architected VietjetAir’s centralized payment gateway at 99.99% reliability — the foundation for the GalaxyPay spin-off.
Technical Director & Engineering Lead · SmartOSC Fintech
Built a BFSI product suite 0→1: an eKYC platform (multi-vendor OCR/AI) and a digital-lending MVP that won the first banking contracts. Scaled engineering from 20 to 80+.
Software Development Manager · WeCash Asia
Founding technical hire for Vietnam at a consumer-lending fintech expanding across SEA. Localized the group’s Java/Spring microservices lending platform (500K+ users in Indonesia) and built the local team 0→12; regional Architecture Expert Group across India, Indonesia, and Vietnam.
Technical Co-Founder & CTO · Atadi
Online travel (airline + hotel booking), acquired by VnTrip. Diagnosed booking-system bottlenecks and drove fixes that grew revenue 200% in four months; stood up the full operational backbone.
Earlier: IT Head at VinMart, Application Development Manager at Timo (the first digital bank in SEA), Delivery Manager at Mobivi, and core-banking engineering at SunGard and Hyundai IT (2003–2016).