Portfolio

Things I have shippedand still run.

Production apps, client platforms, and prototypes built in days to test an idea, each with screenshots from the real thing. Start with the four I would show first.

Start herethe four I would show first
Gatekeeper AI: Real-Time Voice Interview Coach, screenshot
Gatekeeper AI

Gatekeeper AI: Real-Time Voice Interview Coach

A real-time voice interview and sales coach: users practice out loud against an AI that speaks first, pushes back like a real interviewer, and scores every answer against the STAR+R framework - so they find their weak spots before the interview does.

Live voice interview and sales practice
Read the write-up
AI-Powered Product Photography Platform, screenshot
PFrame.ai (SaaS)

AI-Powered Product Photography Platform

A product photography SaaS I built in 8 weeks: upload a product photo and get studio and lifestyle scenes back in minutes. Monli Pets was the first customer, using it to bring stagnant inventory back onto the storefront.

8 weeks · photos in minutes instead of a booked photoshoot
Disclosure: MonliPets is my wife's company; the numbers come from their books.
Read the write-up
B2B E-commerce Platform, screenshot
Wholesale Monli Pets

B2B E-commerce Platform

A custom Next.js B2B ordering platform that replaced a stack of paid WooCommerce plugins, cut page load times, and ended the monthly plugin fees.

seven paid plugins replaced · faster pages · more mobile orders
Disclosure: MonliPets is my wife's company; the numbers come from their books.
Read the write-up
AI Receptionist with Voice Orchestration, screenshot
Concierge AI (Hackathon)

AI Receptionist with Voice Orchestration

An AI receptionist that makes phone calls for you: describe the job, approve the plan, and listen to the AI place the call live, with a transcript, a recording and the result at the end. It can also research local service providers and call up to five of them at once.

Hackathon Sprint · 5 sponsor tech integrations
Read the write-up
Productionclient work and products
NexAI Advisors: The Two-Door Consultancy Site, screenshot
NexAI Advisors

NexAI Advisors: The Two-Door Consultancy Site

My own site, rebuilt in September 2026 around two doors: a production-ready review for founders with an AI-built app, and phone, chat and back-office agents for business owners. Every price on the site comes from one data file, and a render audit gates each release on contrast, overflow and accessibility.

Full-site conversion over two days · Live on Netlify
Read the write-up
AI Conference Companion, screenshot
All Things Open

AI Conference Companion

An AI-powered conference app that builds a personal agenda and suggests an icebreaker for each speaker, built as a side project in 2 weeks.

2 weeks · Outperformed official app
Read the write-up
AI Job Search Command Center, screenshot
Job Platform

AI Job Search Command Center

AI-powered career command center aggregating 16 job sources with intelligent 3-tier deduplication, AI profile matching, Gmail OAuth integration for LinkedIn email parsing, and an autonomous auto-apply agent.

Ongoing Development · Full AI job automation pipeline
Read the write-up
AI Web Scraper & Site Audit Platform, screenshot
Job Platform

AI Web Scraper & Site Audit Platform

Full-stack web intelligence platform with 8-service site auditing (accessibility, SEO, security, performance), batch web scraping with markdown conversion, and real-time SSE progress streaming.

Ongoing Development · Comprehensive web intelligence platform
Read the write-up
B2B AI Catalog Builder, screenshot
Catalog Builder

B2B AI Catalog Builder

B2B catalog creation tool with Excel import, AI-powered Chinese-English translation, fillable PDF export, and session-based workflow for wholesale product catalogs.

Client Project · Complete Excel-to-PDF catalog pipeline
Read the write-up
AI-Assisted USCIS Form Preparation, screenshot
Nex Immigration

AI-Assisted USCIS Form Preparation

Schema-driven platform that reviews USCIS forms field by field and flags mistakes before filing, with a free check that needs no account, an AI assistant for form questions, and a guided-form catalog released one form at a time through a certification gate.

Active Development · 97 guided form previews, released through a certification gate
Read the write-up
AI Social Media Campaign Manager, screenshot
SocialAI

AI Social Media Campaign Manager

AI-powered social media platform generating brand-aligned content across 10 platforms using Gemini AI, CLIP semantic image matching, and Claude-powered agent assistant with direct publishing integration.

6 weeks · Full-stack campaign lifecycle with AI agent
Read the write-up
Prototypesworking builds, not yet in production
Coverage Benchmark: Insurance Program Gap Analysis, screenshot
NexAI Advisors · prototype

Coverage Benchmark: Insurance Program Gap Analysis

Describe a business in one sentence and it classifies the account against the Census NAICS index, reads its current insurance program, and shows where every coverage line sits against a peer cohort - with the evidence behind each finding on the page.

86.4% held-out classification accuracy
Read the write-up
Order Management System, screenshot
Monli Moms · prototype

Order Management System

Multi-channel e-commerce order management prototype with AI-assisted automation, built to take the manual steps out of order handling.

1 week
Open the prototype
AI Virtual Workforce Mission Control, screenshot
OpenClaw (Open Source) · prototype

AI Virtual Workforce Mission Control

Custom mission control dashboard and virtual workforce platform built on top of OpenClaw, featuring Kanban-based agent orchestration, AI task decomposition, cost analytics, and real-time SSE monitoring of multi-agent teams.

Active Development · Mission control for AI virtual workforce
Multi-Tenant AI Agent Platform, screenshot
NexAI (SaaS) · prototype

Multi-Tenant AI Agent Platform

Enterprise SaaS platform for managing chat and voice AI agents with multi-tenant isolation, real-time streaming, knowledge base RAG, and white-label customization.

Active Development · Enterprise SaaS AI agent platform
AI Video Narration Platform, screenshot
Video AI · prototype

AI Video Narration Platform

Full-stack platform for creating professional narrated videos with AI-generated voiceovers using Claude Agent SDK pipeline, ElevenLabs TTS, and real-time WebSocket progress tracking.

Active Development · 4-service AI video orchestration platform
How an engagement runsthree steps, in order

Three separate steps. Stop after any of them.

Step 1 is a free 15-minute fit call to find out if I am the right person. Step 2 is a paid discovery session, $500, that ends in a written plan. Step 3 is a fixed quote for the work, or you take the plan and build it yourself.

Step 1

Fit call

$0 · 15 min
  • bring the app, the repo, or the process you want automated
  • I tell you whether I am the right person for it
  • you leave with the first three things I would look at
  • a slide deck

video call · same week

book it
Step 2

Discovery + plan

$500
  • 60 to 90 minute working session on your real system
  • written plan within 48 hours: what is broken, what is risky, what to do first, what it costs
  • paid when you book the session, refundable for 7 days after the plan lands
  • proposals written before anyone read your code

credited toward the build

start here
Step 3

Build or harden

fixed quote
  • take the plan and do it yourself, or
  • I take it to production at a fixed price and timeline
  • every architectural decision logged and explained
  • bench developers you never met

scoped from the plan

ask for a quote

Want something like this built?

Bring the idea or the app. I will tell you what I would look at first, and whether a $500 discovery session is worth your money.

Book a 15-minute fit call
or email david@nexaiadvisors.com with a link or a short note