Firebase Auth Guide
Authentication using Firebase with Next.js
A practical, production-minded guide to authentication in Next.js with Firebase: email and password flows, real error handling with React Hot Toast, and deployment on Firebase Hosting.
Allan Hillman, AI Engineer & Solution Architect
I build AI-powered web applications and the production systems that keep them reliable, from architecture to launch. Teams work with me for engineering that ships fast without failing quietly: clean React and Next.js front ends, headless CMS pipelines, and safeguards that surface problems loudly instead of hiding them.
Crafting the Web, One Line at a Time - Technical Skills
I work across the stack, from React and Next.js interfaces to the APIs, headless CMS models, and AI integrations behind them. I care most about the parts users never see: type-safe data contracts, resilient rendering, and systems that degrade gracefully under real load. Below are the tools I reach for most.
- JavaScript & TypeScript. I've been able to create dynamic projects, including a Messenger Chatbot and a Spotify Music Clone. To ensure high-quality development standards, I review Pull Requests and use debugging techniques to resolve any potential code issues. Furthermore, I've expanded the functionality of my applications by integrating ChatGPT and Shopify APIs to enhance third-party capabilities.
- React.js & Next.js. I specialize in crafting innovative and responsive designs. My expertise lies in utilizing React.js, which elevates the user interface and experience. Recently, I worked on an exciting project where I integrated Next.js and the ChatGPT API into our code base. This integration resulted in the creation of a new search feature on our website. By enabling users to retrieve relevant articles and questions based on their queries, we significantly enhanced the interactivity of the site.
- Shopify Plus. Over the past 7+ years, I've had the pleasure of working with numerous clients and building over 100 Shopify stores. One of my standout accomplishments was successfully leading a migration from BigCommerce to Shopify Plus for a client with an annual revenue of over $6 million dollars. Additionally, I've developed custom sections, snippets, themes, and pages that improve the overall user interface and experience, resulting in increased conversions.
- Tailwind CSS. I have successfully used Tailwind to improve e-commerce performance and reduce website bounce rates by creating responsive and visually appealing pages. This has resulted in increased conversion rates and improved user experience. I have also applied my Tailwind skills to personal and client projects.
Working with amazing clients & businesses worldwide
- Repeat Client Rate
- 95%
- Projects Completed
- 50+
- Client Satisfaction
- 99%
- Technologies Used
- 30+
Selected work
Personal projects where I built the whole thing end to end and tried ideas out in the open.
Meta Messenger
Seamless Communication Redefined
A real-time messaging app modeled on Messenger, built with Next.js, React, and TypeScript. Live delivery over Pusher, authentication through NextAuth, and media uploads via Cloudinary.
Spotify Clone
Next-Gen Music Soundscape
A full Spotify-style music app built end to end: a responsive player, a Postgres catalog on Supabase, and real subscription billing through Stripe Checkout. Auth, data, and payments in one project.
Allan was great to work with! He is professional and listens to your needs. He is patient and seems to make his best effort to ensure your expectations are met. He takes his time to ensure there is a quality experience and product fulfillment.
kaizen2023
Have a project in mind?
I help teams design and ship AI-powered web products, from architecture through launch. Let's talk about what you're building.