Website: manseungchoi.com
Hi, I’m Manseung. I am a Full Stack Software Engineer and a UoA Computer Science Graduate specializing in building modern, high-performance web applications using Next.js, React, and TypeScript.
I don’t just build static websites; I build scalable SaaS products and web platforms. As a founder of a health-tech startup (Align) and a business call automation service (AIVOLVE), I understand what businesses need: fast load times, SEO optimization, and robust backend integration. Additionally, I worked as a paid Research Engineer for ‘Project Sofia’ at the University of Auckland, where I built software solutions funded by the university. I combine this product mindset with technical expertise to deliver web solutions that drive real business growth.
My Expertise:
Modern Web Development: Building blazing-fast, SEO-friendly web apps using Next.js (App Router), React, and Tailwind CSS.
AI-Powered Web Apps: Integrating OpenAI/LLM APIs to create intelligent dashboards, content generators, and customer support chatbots directly on your website.
SaaS & MVP Launch: From database setup (Supabase/Firebase) to deployment (Vercel/AWS), I handle the entire pipeline to get your product to market quickly.
Whether you need a high-converting landing page, a complex admin dashboard, or an AI-infused web tool, I bring a “founder’s ownership” to every project.
Let’s build a web platform that sets you apart.
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As the Co-founder and Technical Lead, I architected and built an AI-powered health-tech platform designed to streamline workflows for New Zealand General Practitioners (GPs).
Key Contributions:
AI Integration: Developed a backend system using typescript that leverages Large Language Models (LLMs) to accurately summarise complex patient data into concise pre-consultation notes.
Full-Stack Development: Led the end-to-end development, from the backend to frontend (microservice architecture), ensuring a seamless user experience for clinicians.
Product Leadership: Defined the technical roadmap and translated complex clinical requirements into functional software features, directly addressing a critical pain point in the healthcare industry.
Developed Aivolve, an intelligent AI voice agent designed specifically for tradespeople (plumbers, electricians) who lose revenue by missing calls while on the job.
What it does:
24/7 Call Handling: The AI answers incoming business calls instantly, acting as a human-like receptionist even when the business owner is busy fixing pipes or wiring.
Automated Booking: Integrated with calendar systems to check availability and schedule appointments in real-time, removing the need for back-and-forth texting.
Lead Capture: Ensures 0% missed call rate, converting potential inquiries into confirmed jobs automatically.
Built with VAPI to understand context, handle accents, and provide a professional customer experience for service-based businesses.
As a Research Engineer funded by the University of Auckland, I developed “Sofia,” an interactive AI digital human designed to tutor Marketing students. This project explored the future of EdTech by combining interactive avatar AI with large language models.
Key Technical Achievements:
Digital Human Integration: Utilized HeyGen API to create a lifelike, talking AI avatar that delivers course content in real-time, boosting student engagement.
Intelligent Conversation: Integrated OpenAI (GPT-4) to power the avatar’s brain, allowing students to ask complex marketing questions and receive instant, context-aware answers.
Academic R&D: Handled the full development lifecycle from prompt engineering to frontend integration, proving the viability of AI tutors in higher education.
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