I design and ship AI-powered applications by connecting language models, retrieval systems, backend services, and intuitive user experiences.
My name is Fernando Lin. I build software products powered by modern web technologies and AI, transforming complex ideas into practical solutions through intelligent workflows, scalable systems, and user-centered experiences. From intuitive interfaces to AI-powered backend systems, I focus on turning concepts into production-ready applications that solve real-world problems
Designs and builds scalable software systems, APIs, and applications with a focus on performance, reliability, and great user experiences.
Builds intelligent applications powered by LLMs, retrieval systems, and AI workflows that solve real business problems.
Combines software engineering, automation, and cloud infrastructure to transform ideas into reliable production systems.
The tools I use are organized by how I turn an idea into a working product.
My expertise lies in software engineering for AI-powered systems, especially applications that combine LLMs, knowledge retrieval, automation, and intuitive user experiences.
Each case shows what changed: before, what I built, and the impact after.
Manual calorie tracking forced users to search foods, estimate portions, and type every meal.
Next.js, React, TailwindCSS, computer vision, Supabase-backed meal records, and Langfuse for LLM observability, tracing, and analytics.
Photo recognition reduced logging time by 80% by turning meal pictures into calorie insights.
An AI calorie tracker that estimates meal nutrition from food photos.
The business needed a better way to showcase its products and marketing campaigns beyond social media.
Built with Next.js, React, Tailwind CSS, and Framer Motion, emphasizing product presentation, promotional content, and mobile responsiveness.
Improved product visibility and provided customers with a centralized destination for menus, promotions, and brand information.
A promotional restaurant website highlighting Dlizbox's products, promotions, and brand identity.
Project work was scattered across repos without a clear story or hiring-focused path.
Next.js interface with motion, responsive sections, and curated project data.
Visitors now get one focused path through my AI, data, and software engineering work.
Designed a portfolio that presents my AI engineering process, project case studies, and technical capabilities through a product-oriented narrative.
Risk prediction lived as raw model output without an approachable workflow for users.
Flask app, neural network inference, SHAP explainability, and tabular data processing.
Patient inputs became readable risk signals with SHAP context for easier interpretation.
This project is a web-based application designed to predict the risk of heart disease using a neural network model.
Support operators had to jump between product knowledge, policy, and customer context.
LLM workflow, RAG-style product knowledge, analytics surfaces, and a Next.js workspace.
Operators can answer faster from one AI workspace connected to knowledge and policy.
CircuitDesk combines AI assistance, structured product knowledge, customer support policy, and operator analytics in one polished workspace.
Rental details were hard to browse without a structured vehicle and pricing experience.
Laravel, Blade templates, SCSS styling, and JavaScript interactions.
Customers can review vehicles, compare pricing, and move toward booking in one flow.
A car rental website that provides information about cars, courses, pricing, and booking options.
The food brand needed a clearer way to present products beyond static listings.
Next.js, React, TailwindCSS, and polished motion for menu and product discovery.
The brand gained a deployed product showcase with faster menu and product discovery.
Restaurant website that sells Izakaya Suki's products.
A live contribution signal from my GitHub profile.
Whether you're looking to build custom software, integrate AI into your business, explore a partnership, or simply start a conversation, I'd love to hear about your ideas.
Working remotely worldwide.
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Build SaaS platforms, dashboards, ERP systems, internal tools, business applications, and modern web experiences.
AI chatbots, AI agents, workflow automation, knowledge assistants, computer vision, and intelligent business solutions.
Product collaboration, startups, technical partnerships, or long-term opportunities.
Questions, feedback, speaking opportunities, or anything else.