Aquarius Maximus – AI Engineer & Full‑Stack Developer

FULL‑STACK ENGINEER · WEB, MOBILE & AI

Designing and shipping polished products end‑to‑end.

I design, build, and ship web and mobile products — brand sites, marketplaces, consumer apps, and AI‑powered tools when the problem genuinely calls for it.

I work across the stack: crisp frontends in Next.js and React Native, TypeScript backends, and LLM integrations where they add real value. My work spans marketplaces, social platforms, wellness brands, kids’ games, crypto wallets, and AI‑assisted products.

Below is a selection of live projects — all deployed to real users and tuned for fast iteration.

View featured work Mobile apps Get in touch

FEATURED WEB WORK

Production web products & experiments

A cross‑section of marketplaces, brand sites, and digital experiences deployed across Netlify, Vercel, and custom domains.

Live

Founding Engineer

syrn.ai

Product site for an AI company — clean marketing surface introducing what the team is building.

Shipped the public-facing site from early sketches through production.
Built the frontend, API layer, and deployment pipeline end-to-end.
Set up analytics and experimentation so the team could iterate on real signals.

Technical Stack

Next.js / TypeScript / Tailwind on a cloud-native deployment pipeline.

AI & ML

Core product (not the site) uses LLMs for orchestration, prompting, and safety rails.

Live

Full‑Stack Engineer

sov.social

Social platform focused on identity, feeds, and secure interactions between members.

Implemented core social features: profiles, feeds, and messaging.
Built auth and session flows with a focus on account safety.
Shipped a responsive web interface built for rapid iteration.

Technical Stack

Next.js / TypeScript frontend with an API-driven backend.

Live

Product Engineer

Zyn Virtual

Landing experience for Zyn Virtual — clear brand narrative and a fast, responsive launch page.

Designed and shipped a polished, responsive marketing site.
Dialed in typography, hierarchy, and CTA flow for clarity.
Deployed globally on Vercel with fast time-to-first-byte.

Technical Stack

Next.js on Vercel with TypeScript and Tailwind CSS.

Live

Frontend Engineer

Zyn Spaces

Spaces and collaboration site — the product story told through a fast, modern web experience.

Built a clean, responsive interface that communicates the product clearly.
Kept bundle size small and interactions snappy across devices.
Deployed via Vercel for low-latency global delivery.

Technical Stack

Next.js / TypeScript / Tailwind on Vercel.

Live

Full‑Stack Marketplace Engineer

The Hadal Store

Multi-vendor marketplace with a curated catalog across electronics, furniture, fashion, and home.

Built storefront with category navigation, product listings, and detail pages.
Implemented trust markers — secure payment, fast delivery, buyer protection, 24/7 support.
Structured information architecture for About, Categories, and newsletter signup.

Technical Stack

React-based storefront deployed on Netlify, backed by a commerce layer for catalog and checkout.

Live

Technical Lead & Frontend Engineer

BSB Corporate Cleaning

Marketing site for a corporate cleaning business — clear services, trust signals, and a direct path to book.

Delivered a professional brand site optimized for clarity and conversions.
Structured services, coverage, and contact flow so prospects can get a quote quickly.
Shipped responsive pages that look polished on phone, tablet, and desktop.

Technical Stack

Static/SSG marketing stack with a modern framework and managed hosting.

Live

Product Engineer

Aurazen

Wellness brand site — calm, design-forward presence for the Aurazen product and story.

Delivered a visually polished, brand-led web presence.
Crafted typography, color, and motion that match the wellness positioning.
Responsive from mobile up, with attention to pacing and whitespace.

Technical Stack

Modern JavaScript frontend with a design-forward system, backed by serverless APIs or a headless CMS.

Live

Creator & Engineer

I Ching AI

Digital I Ching reading — cast hexagrams and get thoughtful, context-aware interpretations.

Built the hexagram casting flow and a clean reading interface.
Mapped the traditional 64-hexagram system into a structured data layer.
Wrote prompt logic so interpretations stay grounded in the source material.

Technical Stack

Next.js / React app with an API layer that proxies requests to an LLM provider.

AI & ML

Uses an LLM to generate interpretations, with domain-specific prompting and guardrails so responses remain faithful to the tradition.

Live

Personal Brand Site

AquariusMaximus.com

The central hub for my work — projects, writing, and things I'm exploring.

Defines the personal brand and positioning.
Showcases selected projects and ongoing experiments.
Deployed on a global edge network for fast loads anywhere.

Technical Stack

Modern full-stack framework deployed on a global edge CDN.

Live

Game Designer & Frontend Developer

Emotion Island

A playful, narrative-driven web game that helps kids learn emotional regulation with Hue the Dragon.

Designed a map-based world where kids explore places like Angry Volcano, Sadness Swamp, and Fear Forest to learn coping skills.
Built interactive mini-games for breathing exercises, reframing, and self-kindness.
Crafted microcopy and UX flows tuned for younger players and caregivers.

Technical Stack

Single-page web game built with a modern JavaScript framework, deployed on Netlify.

In Progress

Product Designer & Frontend Engineer

KOWRII – Fintech Learning Simulator

Interactive simulator that makes financial concepts tangible through a playful, experimental interface.

Designed a simulation-style interface to teach fintech and money-management concepts.
Used visual metaphors and interactive flows to make abstract ideas concrete.
Deployed on Netlify as a lightweight prototype for rapid feedback cycles.

Technical Stack

React-based SPA bundled with a modern build tool and deployed via Netlify.

KOWRII – Fintech Learning Simulator screenshot

MOBILE APPS

Mobile products in users’ pockets

Cross‑platform mobile apps spanning dating, esoteric guidance, and community crypto — each shipped to real users on real devices.

Live

Mobile

Founding Mobile Engineer

Dateable

Dating app with an in-app assistant that helps users reflect on matches and craft better conversations.

Built the matching and messaging experience with a native-feeling mobile UI.
Shipped onboarding, discovery, and chat flows tuned for clarity and emotional safety.
Integrated an in-app assistant that offers reply suggestions and coaching on demand.

Technical Stack

Cross-platform mobile stack (React Native / Expo) with a TypeScript API layer, auth, and realtime messaging.

AI & ML

Assistant uses an LLM for reply suggestions and contextual coaching while preserving the user's own voice.

Live

Mobile

Creator & Mobile Engineer

Cardology

Modern mobile companion for the Cards of Destiny system — daily cards, yearly spreads, and a readable glossary.

Designed a clean, mobile-first interface for daily cards, yearly forecasts, and traditional spreads.
Built a glossary that makes the symbolic system approachable for new users.
Structured the data layer around traditional Cards of Destiny meanings as the source of truth.

Technical Stack

Cross-platform mobile app (React Native / Expo) backed by TypeScript APIs and a structured card/meaning dataset.

Live

Mobile

Mobile Engineer

Guapcoin Wallet

Mobile crypto wallet with a clean send / receive flow and clear balance visibility.

Implemented core wallet flows: viewing balances, receiving via address or QR, and sending with validation.
Focused on clarity — users should always know what they hold, what they're sending, and to whom.
Built with a trust-first UX for a community-driven token economy.

Technical Stack

Cross-platform mobile wallet integrating on-chain RPC, secure key storage, and transaction signing.

HOW I WORK

Crisp frontends, boring backends, calm deploys.

I favor small, well-chosen tools over heavy stacks — so things stay easy to change and fast to ship.

End‑to‑end product engineering

I move across design, frontend, backend, and deploy, which means fewer handoffs and tighter iteration loops. I care a lot about typography, micro‑interactions, and the small details that make a product feel finished.

On the backend I prefer TypeScript‑first services (Next.js / Node) with managed databases and serverless functions where they make sense — shipped to Vercel, Netlify, or custom cloud setups depending on the project. When a project calls for AI, I treat the model as one component in a larger system, with clear interfaces and guardrails around it.

Core toolkit

· Frontend: Next.js, React, TypeScript, Tailwind CSS
· Mobile: React Native / Expo
· Backend: Node/TypeScript APIs, serverless functions
· Data: Postgres, managed databases, vector stores when needed
· When it fits: LLM APIs with domain prompting and guardrails
· IDEs: Cursor, Windsurf, and good old Terminal :-)
· Infra: Vercel, Netlify, CI/CD, observability tooling

ABOUT

A builder comfortable at every layer of the stack.

I move comfortably between product thinking, systems design, and implementation. Whether it’s a consumer app, a brand site, a marketplace, or an internal tool, I prioritize crisp UX, reliable infrastructure, and a code base future contributors will actually enjoy working in.

This portfolio highlights shipped work — not just prototypes. Every project above represents real users, real constraints, and real iteration cycles, which is where I do my best work.

GET IN TOUCH

Let’s build something together.

Available for select collaborations, advisory, and hands‑on engineering.

Share a bit about your product, where it is today, and what you’d like help with. I read every message and reply personally.

Prefer email? aquariusmaximusiam@gmail.com