2026 · Full-stack development
Marble World Studio
A complete product around a new AI capability, including generation, in-browser 3D navigation, Stripe credits, and downloadable assets.
- Next.js
- React
- Three.js
- Prisma
- PostgreSQL
- Stripe
Available for new projects
Agent systems, trading tools, and web apps, built with care.
I’m a full-stack engineer working on LLM agent workflows, paper-trading systems, and production web apps. The projects below are running demos and real things I’ve built.
- running demos and production apps
- 13+
- full-stack web dev, agentic systems, algorithmic trading
- 3
- years shipping software
- 6+
Find the relevant work
Start with the kind of problem you’re solving, then explore the applications and case studies behind it.
Web development
Production-minded web applications with clear interfaces, durable data models, and the unglamorous pieces that make a product usable after launch.
ExploreQuant finance & algo trading
Observable research and paper-trading systems, built to expose the data, risk, and model behavior instead of hiding them behind a backtest.
ExploreAgentic AI & workflow automation
Structured agent workflows and automations where each hand-off is inspectable, typed, and designed to recover when the real world gets messy.
ExploreSelected work
2026 · Design & development
Agentic AI Systems
Three small multi-agent systems: a research pipeline that revises itself, a typed workflow DAG, and a wellness chat that routes requests while sharing context.
- Next.js
- TypeScript
- OpenAI API
- Structured output
- JSON Schema
- DAG execution
2025 · Frontend & data visualization
Weather Map Explorer
Click anywhere on the map to resolve a location, pull its weather data, and chart temperature, precipitation, and humidity.
- React
- Node.js
- Leaflet
- Weather APIs
2026 · Design, architecture & implementation
Online RL on Bitcoin Perpetuals
A paper-trading reinforcement-learning system that learns from streaming data, with 16 feature blocks, four neural encoders, and a dashboard showing its state, trades, and P&L.
- PyTorch
- SAC
- GRU
- CNN
- Next.js
- WebSocket
2026 · Security audit, exploit development & remediation
The Vibe-Coded SaaS Teardown
A realistic AI-built B2B SaaS with eight planted-but-real vulnerabilities, a reproducible exploit for each (anon key reads every tenant; a member escalates to admin; patient PHI downloads with no auth), and a fixed branch whose 8/8 regression tests prove tenant isolation holds. The diff is the audit.
- Next.js
- Supabase
- PostgreSQL
- Row-Level Security
- TypeScript
2025 · Full-stack development
Personal Finance Dashboard
A straightforward React, Laravel, and PostgreSQL app with authenticated API routes, financial dashboards, and data visualization.
- React
- TypeScript
- Laravel
- Material UI
- PostgreSQL
How I work
Build sprint
A scoped feature or prototype with a clear target and a working result at the end. I keep the process simple and keep you close to the work.
Ongoing development
Ongoing help with agent workflows, trading tools, or full-stack features. You get direct communication, a steady cadence, and code that stays yours.
Audit & rescue
If an LLM pipeline is flaky or a build has stalled, I can help sort out what is actually happening and make a practical plan to fix it.
Kind words
- Reliable
- Solution Oriented
- Clear Communicator
- Detail Oriented
- Professional
“Andrew was great to work with. Very responsive and an excellent communicator. … I would definitely recommend working with him for projects of any size.”
“Andrew was great to work with. He is easy to talk to, and brought great energy to the session. He was knowledgeable about stock trading and machine learning, and he explained concepts in a practical, straightforward way. I left the consultation with a much clearer understanding of the gaps I have in my plan.”
Have something to build?
Tell me what you’re trying to build, whether it’s an agent workflow, a trading tool, or a product that has gotten stuck. I’ll be straightforward about whether I can help.
I typically reply within one business day.