Web modernization
Modernize older or unclear websites without unnecessarily rebuilding everything.
HP Modern Studio
Henry Parker AI Software Engineer | Backend & Full-Stack Engineer
Building practical AI systems, real-time messaging, and reproducible developer tooling.
Focused on clear engineering architecture, scalable backend systems, multi-provider authentication, and production deployments.
Henry ParkerFounder, HP Modern StudioHo Chi Minh City, Vietnam
One founder. Hands-on product thinking. Focused improvements built around what customers are already trying to do.
What I build
Useful technology, shaped around a real decision or task.
Product development
Design and build practical web products across modern interfaces, backends and APIs.
AI & automation
Build AI agents, workflow automation, integrations and practical AI-enabled tools.
Customer journeys
Find friction in an existing digital experience and make important actions easier to complete.
Featured work
Production systems, open developer tooling and AI platforms.
Featured Production System
PastelChat
Production-ready real-time messaging platform supporting multi-tenant messaging across web and desktop clients.
- Technology
- React.js, Node.js, MongoDB, Socket.io, Electron, OAuth 2.0, JWT
- What was built
- Full-stack real-time communication platform supporting 50+ active users and 1,000+ daily messages without critical production incidents. Implemented Google & Microsoft OAuth 2.0 with JWT sessions, MongoDB index optimization reducing cold starts from ~30s to <2s, and automated CI/CD deployments with 99.5% availability.
Open Source Tooling
RepoSpec
Portable evidence capture and sandboxed replay CLI toolkit for reproducible bug diagnostics.
Tech: Node.js, JavaScript, TypeScript, CLI, Docker, SHA-256, npm
Built an open specification and Node.js CLI to capture tamper-evident bug diagnostics. Features configurable regex redaction, cryptographic SHA-256 verification, and isolated Docker execution copy replay.
HP OSAI Operating System
AI Platform Architecture
HP OS
Unified local-first AI operating environment integrating backend microservices, an AI Agent runtime, and workflow automation.
Tech: Python, Node.js, PostgreSQL, MongoDB, Redis, RabbitMQ, Docker
Architected asynchronous task orchestration, persistent PostgreSQL/MongoDB/Redis state layers, and modular local generative AI studio applications communicating over internal APIs.
Meet the founder
Henry Parker
Nguyen Manh Tuan Hung
Founder — HP Modern Studio
AI Automation & Full-Stack Developer based in Ho Chi Minh City. Henry builds practical software across modern web products, APIs, automation systems and AI agents.
EducationDiploma of Information TechnologyUTS College
Technical capabilities
Product engineering
React · TypeScript · Node.js · Express · REST APIs · Authentication · Real-time systems
AI & automation
AI agents · Workflow automation · Browser automation · Scheduled workflows · LLM-assisted systems
Infrastructure
Docker · Backend architecture · Monitoring · API integrations · Databases
How I work
- UnderstandReview the existing product, workflow and customer journey.
- IdentifyFind the highest-impact friction before proposing a rebuild.
- PrototypeBuild a focused concept or working improvement.
- BuildTurn approved ideas into maintainable, production-oriented software.
Your website may not need a rebuild.
Sometimes the highest-impact improvement is a clearer booking flow, a better mobile experience or a simpler path to the action customers are already trying to take.
HP Modern Studio identifies those opportunities before proposing a large rebuild.
Discuss an improvementHave a product or website worth improving?
Tell me what customers are trying to do—and where the current experience gets in their way.
henry@hpmodernstudio.com