# Custom Web App Development — Matthew Rhoads

> Matthew Rhoads is an independent full-stack web developer (and Official Sanity Partner) who builds custom web apps for marketing teams, design studios, and enterprise clients: customer and partner portals, dashboards, calculators and configurators, internal tools, content platforms, and integrations. Front end, back end, and AI features where they save time. Quoted per engagement. Contact: hello@zephyrpixels.dev.

## What I build

- **Portals & dashboards** — logged-in areas for customers, partners, or members, with accounts, roles, and per-person data.
- **Calculators & configurators** — quote tools, product builders, pricing calculators, and assessments that turn a marketing page into a qualified lead.
- **Internal tools** — admin panels and workflows that replace fragile spreadsheets.
- **Content platforms** — a CMS with real application logic behind it: automated video, AI-assisted writing, email, and publishing workflows.
- **Integrations & automation** — CRMs, email, search, media, and anything with an API, wired together so data moves on its own.
- **Interactive builds for studios** — the app-like pieces of a design studio's project that need real engineering.

Focus: well-built tools for established teams, not venture-scale products.

## The stack

- **Front end:** React, Next.js, TypeScript; 95+ Lighthouse standard.
- **Back end & APIs:** server routes, webhooks, background jobs, serverless functions.
- **Accounts & data:** sign-in, roles and permissions, data models designed to grow; privacy-conscious by default.
- **Integrations:** HubSpot, Salesforce, Shopify, Resend, Algolia, Cloudinary, Clerk, and custom systems.
- **Content & AI:** headless CMS (Official Sanity Partner) and AI workflows where they save real time ([AI workflows](/ai-workflows.md)).

## Featured build: Chipter

Matt's own product and a full-stack content platform: reader accounts synced from Clerk via verified webhooks, likes and comments with privacy-conscious rate limiting, an AI voice system inside the editor, newsletter sending, and a serverless pipeline that renders 15 video templates on demand and delivers every social format from one master file. [Case study](/case-studies/chipter.md).

## Who it's for

- **Marketing teams** — the calculator, portal, or campaign tool the site needs, connected to the CRM and analytics already in place.
- **Design studios & agencies** — the app-heavy part of a client project, embedded or white-label, built to match the design file.
- **Enterprise teams** — senior capacity for a focused build or internal tool, inside existing repos, review processes, and security requirements.

Matt writes the code; when a project needs design or copy, he brings in specialists he trusts.

## Engagement & pricing

Every engagement is quoted individually:

1. **Fixed-price build** — one price agreed up front; 30 days of post-launch support included.
2. **Embedded / retainer** — inside your team, billed hourly or monthly.
3. **Consulting** — architecture and planning, scoped per engagement.

See [how I work](/process.md).

## FAQ

**What kinds of web apps do you build?** Portals, dashboards, calculators and configurators, internal tools, content platforms, and integrations with CRMs, email, and other systems — focused tools for established teams.

**Are you a full-stack developer?** Yes — front end, back end, accounts and data, and integrations. Principal engineer at Fortivex, senior software engineer at The Motley Fool, and builder of Chipter, a full-stack app.

**Do I need a website or a web app?** If people mostly read and browse, a website. If they log in, enter data, get personalized results, or your team manages records and workflows, a web app — or a website with an app inside it.

**How much does it cost?** Quoted per engagement: fixed price for whole builds, hourly or retainer for embedded work, consulting scoped individually.

**Can you work with our designers or engineering team?** Yes — building from another studio's designs and working inside existing repos and review processes is routine. No designer? Matt brings in one he trusts.

**How quickly will I see progress?** A working preview within days; the full timeline depends on scope and comes with the quote.

## Contact

- Email: hello@zephyrpixels.dev
- Book a 30-minute call: https://cal.com/matthew-r-vaobft/30min
- More: [about](/about.md) · [Sanity services](/sanity-services.md) · [case studies](/case-studies.md)