I’m a full-stack developer based in New Zealand with a passion for building modern web applications that combine strong user experience with practical backend workflows and secure integrations.
During my internship at Wonderbean AI Consulting, I helped deliver a production-ready SaaS platform on a serverless Cloudflare stack (Workers, D1, and R2), contributing to AI-driven report generation, Stripe-powered subscription flows, secure PDF delivery, and authenticated dashboard features. My work also included strengthening the platform through HTML sanitization, data-validation improvements, and end-to-end user-facing functionality.
I enjoy building with TypeScript, JavaScript, React, Node.js, MongoDB, and SQL-based systems, with a particular interest in SaaS platforms, API integrations, AI-assisted development, and cloud-native architecture. My workflow is grounded in Git/GitHub, testing, iterative delivery, and writing clear, maintainable code.
Before moving into software development, I spent many years in teaching and research, which shaped the way I work today: with curiosity, empathy, structured problem-solving, and a strong focus on communication and continuous improvement.
| Frontend | Backend | Cloud / DevOps | AI & Automation | Testing & Security |
|---|---|---|---|---|
| React (Vite), CSS Modules | Node.js, Express | Cloudflare Workers, D1, R2 | LangChain, OpenAI (GPT), Google Gemini | Jest, Auth0, Stripe Webhooks, DOMPurify |
Repo: Private (Client Project)
- Delivered an AI-driven report generation pipeline using LangChain/OpenAI, Cloudflare Workers, D1, R2, Stripe, and Auth0.
- Implemented secure subscriptions, entitlements, webhook reconciliation, and automated PDF report generation.
- Collaborated in an Agile team using Jira, GitHub PRs, and sprint reviews.
Repo: Agent Smith CLI (public)
- Built a LangChain.js-powered CLI integrating OpenAI GPT and Tavily tools for real-time web search and content extraction.
- Demonstrated multi-turn reasoning, agentic design, and environment setup using Node.js.
Repo: Z Energy Locator (public)
- Full-stack web app that displays real-time Z Energy fuel station data with regional clustering, built with React, Node.js, and MongoDB.
Repo: Mongo CLI Tool (public)
- A CLI tool that allows data seeding and deleting in Mongo DB
Repo: AI Interviewer (public)
- Mock interview simulator using Google Gemini API with role-specific prompts and feedback.
Repo: AI Insurance Consultant (public)
- AI-powered car insurance consultant built with React, Node.js, and Google Gemini API
Repo: AI Vehicle Classifier (public)
- A web app using a trained Azure custom vision object detector AI model to identify some vehicle types 🚚 🚙 🚗 and brands
Before transitioning into tech, I spent over a decade in higher education and healthcare, developing strong skills in research, communication, and collaboration — now core to how I design and deliver software.
- Building AI agents with LangChain.js + OpenAI
- Developing serverless architectures with Cloudflare Workers
- Designing secure, user-centered full-stack apps
🌐 LinkedIn
💻 Portfolio
📧 smesi36@gmail.com