Case Studies
A few of the projects we've built and deployed. Names are redacted where clients prefer it, but the problems, the approach, and the results are real.
How Northcrest Fence & Gate Cut Proposal Turnaround From Days to Minutes With a Custom Sales Platform
A unified Next.js 16 sales platform — public marketing site, mobile-first estimate capture, automated PDF proposals, and an admin portal — built so estimators can quote from the truck and homeowners get a branded proposal before the next contractor even calls back.
How HobbsPeak Turned a Custom Headwear Brand Into a Live-Catalog E-Commerce Operation
A headless commerce platform on Next.js 16 with live S&S Activewear catalog sync, an AI-assisted artwork digitizing pipeline, Stripe checkout, an affiliate program, and a full admin console — built so a family-owned custom headwear brand can run wholesale-tier e-commerce without giving up its personal-service model.
How Bridgepointe Painting Replaced Spreadsheets With a QuickBooks-Synced Operations Platform
A bespoke Next.js/TypeScript operations platform with a deep QuickBooks Online integration — bi-directional sync of customers, vendors, items, and chart-of-accounts — alongside a customer portal, employee and subcontractor management, project tracking, and a premium marketing site spanning nine Atlanta-metro service areas.
How ProtectWithBri Turned a Personal Insurance Practice Into a High-Trust, High-Conversion Web Presence
A focused single-page Next.js 15 / React 19 site for a personal insurance advisor — cinematic hero, plain-language copy, structured consultation intake, sticky mobile CTA, and an intentionally minimal stack so the practice scales without scaling its tooling costs.
How J5 Sales OS Became an AI-Powered Lead Engine for Niche-Vertical Sales Teams
An operator-grade lead generation and pipeline SaaS — Google Places discovery, concurrent email scraping with directory blocklists, OpenAI qualification and outreach generation, full CRM pipeline, and an analytics dashboard — so a single seller can do the work of a team.
How Wilder Recovery Got a Full Lot-Management System Custom-Built for Towing and Repossession Operations
A purpose-built lot-management platform for towing, recovery, and repossession — vehicle intake, photo and document chain-of-custody, personal property inventory with release tracking, scheduling, role-based admin, and an immutable audit log so the operator can defend every action against a lender, owner, or auditor months later.
Multi-Strategy Trading System Deployment
A multi-strategy trading system running MA Supertrend and VWAP in parallel, with real-time feeds, hard risk controls, and 24/7 uptime. Built to trade real money, not to look good in a backtest.
Motorcycle Shop Operations Platform
Replaced four disconnected tools — inventory, work orders, scheduling, invoicing — with one custom platform. The shop owner stopped double-entering data and got three or four hours of his week back.
Contractor Estimating & Proposal Engine
A custom estimating engine that turns a 4-hour proposal process into a 20-minute one. Inputs go in, a branded PDF comes out, and the lead lands in the CRM automatically.
Active Directory Penetration Test
A full-scope internal assessment ahead of a compliance audit. Reconnaissance, credential attacks, ADCS abuse, lateral movement, and a documented path to Domain Admin — with an executive-ready remediation roadmap at the end.
Custom HIPAA-aware claim portal for a regional medical billing team
A HIPAA-aware internal claim portal with bi-directional clearinghouse ETL, immutable audit logging, role-based access, and an encrypted EOB document vault — built so a four-person billing team could stop answering claim-status calls and start working denials.
Stripe Connect booking + crew assignment for a yacht charter ops team
A custom booking platform with Stripe Connect crew payouts, deposit-then-charge billing, Twilio SMS notifications, and a customer portal — built so a yacht-charter ops team could stop running its calendar on text messages and start protecting its bookings with deposits.
Trading bot orchestration + risk dashboard for a solo prop trader
A Python bot orchestrator on a Postgres event store with Polygon market data, WebSocket broker adapters, a backtest harness, and a real-time risk dashboard — built so a solo prop trader could run four strategies in production without manually reconciling fills against spreadsheets.
Multi-tenant ad inventory + invoicing SaaS for a regional broadcaster
A multi-tenant ad inventory and invoicing SaaS with Stripe billing, an agency self-serve portal, role-based auth, and Postgres row-level security — built so a regional broadcaster could replace three stations' worth of disconnected spreadsheets with one shared platform.
Working on something similar?
Tell us what you're trying to build. We'll tell you whether we can help and what it would take.
Or talk to us directly: (770) 652-1282 · beltz@quantlabusa.dev