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Henry Nguyen.
Building and scaling software from zero to hero
Full-stack software engineer with hands-on experience building multi-platform production applications for pre-seed and seed startups, FinTech platforms, and recruiting systems. Currently developing web, mobile, and backend solutions at Fastrak AI. Proficient in TypeScript, Next.js, React Native, NestJS, Python, and modern web technologies.
Working History.
Software Engineer
Fastrak AIJul 2025 – Present
San Francisco, US (Remote)
Enterprise Operations Suite - US Client (ERP Field Service Platform)
Domain: ERP / Field Service Management
- Built MVP features across ERP, field-service CMS, and AI-enabled CRM modules in a unified enterprise suite.
- Designed relational database schemas and developed REST APIs across ERP, CRM, and field-service domains.
- Delivered scalable full-stack functionality with Next.js and NestJS, improving delivery speed and maintainability.
- Implemented RBAC and permission workflows across ERP and CRM surfaces to enforce secure access control.
- Owned production release operations for 1 web app and 2 mobile apps across the Apple App Store and Google Play Store.
- Contributed to sprint planning, story estimation, and decomposition of epics into implementation-ready tasks.
Software Engineer
Lyra TechnologiesJun 2024 – Jun 2025
Sydney, NSW (Hybrid)
Investment Portfolio Management Platform - US Client (Private Equity VC)
Domain: FinTech, private equity/venture capital portfolio management
- Engineered portfolio management dashboards used by investment teams for data-driven portfolio monitoring.
- Built and maintained data pipelines to ingest, transform, and normalize investment reports from multiple sources.
- Implemented responsive frontend features in Next.js and TypeScript to improve usability for analyst workflows.
- Optimized SQL queries and application performance to support large datasets and faster report interactions.
AI Recruiting and Job Matching Platform - US Client (Startup Series B)
Domain: HRTech, semantic people search and talent matching
- Built a semantic job recommendation platform serving 1M+ candidates and 50K job postings.
- Developed ranking/scoring logic that achieved >85% exact-match accuracy on train/test validation data.
- Integrated LLM embedding-based retrieval with search and ranking algorithms in a single query pipeline.
- Optimized end-to-end query latency to consistently return ranked results in under 3 seconds.
Internal AI Virtual Staging Platform
Domain: PropTech, generative AI virtual staging
- Designed and built an AI virtual staging platform powered by Stable Diffusion models.
- Developed custom ComfyUI node workflows and automated image processing pipelines for production use.
- Architected REST APIs for image upload and processing integration across internal systems.
- Optimized model inference pipeline, reducing total processing time by 66%.
- Earned promotion to a permanent position after 3 months based on performance metrics.
Projects.
Qenera — AI Exam Prep
WebsiteAI-first web platform for Vietnam high school exam preparation, serving around 1,000 active users.
- Led a team of 3 (1 DevOps, 2 full-stack) building and shipping the platform.
- Shipped question generation, auto-grading with explanations, and personalized study roadmaps.
- Built AI Q&A with RAG-style retrieval over learning materials using OpenAI API.
- Stack: Next.js 14, tRPC, Node.js, Drizzle ORM, PostgreSQL, MinIO.
Education.
Bachelor of Computer Science, Data Science
Swinburne University of TechnologyHawthorn, VIC
Program based in Hawthorn, VIC, Australia, with a focus on data science and software engineering foundations applied to production applications.
Contact Me.
I'm always open to discussing new opportunities, collaborations, or just connecting. Feel free to reach out!
nthung2k4work@gmail.com
Location
Vietnam