We design and build the sites, dashboards, and data infrastructure that small businesses turn to when off-the-shelf tools start costing them more than they save. Then we stay on as your engineering partner — monthly retainer, real on-call.
The site you launched on Webflow or ClickFunnels did its job. Now it's the bottleneck — every new feature is a workaround, and the brand looks like every other operator using the same five sections.
Stripe lives in Stripe. Whop lives in Whop. The CRM lives somewhere else. Someone on payroll spends their week being the human glue between systems that should be reconciling themselves.
Conversion is a function of measurement, and most off-the-shelf stacks don't measure what matters. Custom infrastructure is what turns a website into a revenue system.
Sites that look like the brand you're building, not the SaaS template you started on. We design, we build, we deploy. Custom Next.js. Premium motion. Engineered for sub-one-second loads on mobile.
Real database under your operations. Stripe and Whop reconciled hourly. Cohort tracking from day zero. Attribution from the first ad click to the paying customer. Dashboards that load instantly because the data is pre-aggregated.
Most of the value happens after launch. Monthly A/B testing with proper sample-size math. Lead scoring with calibrated probabilities. Refund and churn forecasting. The data-science layer most operators don't have because it requires real training.
An operator running a high-ticket service business on a templated funnel was losing money in three places: a brand that looked like every competitor on the same builder, a one-question routing system sending every applicant to the same closer, and no measurement past the form submit. We replaced the funnel with a custom Next.js build, a five-step qualification engine with soft-disqualify routing, event-level analytics on every interaction, and a private dashboard for the operator. Demo-ready in under 48 hours.
Open-source Rust + CUDA library shipped by the studio. Snapshots LLM engine state to disk for sub-second cold restores — 17.2× faster cold starts (546s → 31.8s) on Llama-3-70B across two A100s. Pipelined DMA restore at 55 GB/s saturating PCIe Gen5. Production design partners running real workloads. vLLM and SGLang integrations across 9,400+ lines of Rust, Python, and PyO3.
Brand-led redesign with custom motion, product photography integration, and an analytics layer that finally connects ad spend to repeat purchase.
Internal tooling that pulls Stripe, Whop, Discord, and Calendly into one source of truth. Reduces the manual relay work to zero.
Replace Kajabi or Teachable with a custom platform. Real checkout, real content portal, real cohort retention analytics from day one.
A 90-minute audit of the current stack. We pull it apart — what works, what leaks, where money is being left on the table. You get a one-page report with specific dollar leaks, highest-leverage fixes, and a verdict on whether we're a fit. No commitment, no obligation.
Schema design, data flow, integration map, deployment plan. You see and approve every architectural decision before a line of code ships. By the end of week one you have a written spec of the system — not a black box you can't reason about.
Custom site, backend, integrations, dashboards, analytics — delivered in chunks you can use as they land. Demo every Friday. Reconciliation in week one. Lead scoring by week four. Full handoff with documentation by week six.
Monthly A/B tests. Quarterly model retraining. Ongoing integration of new tools as you adopt them. On-call when production breaks. You stop being the manual relay between systems. The infrastructure compounds.
A dip-your-toe engagement. Custom site, qualification quiz, baseline analytics, and one A/B test per quarter. No performance kicker, no advanced infrastructure — an honest minimum for operators who want to see the engineering before scaling the engagement.
Everything in Starter, plus the full data infrastructure: normalized database, Stripe + Whop webhooks reconciled hourly, cohort tracking, attribution from first ad click to paying customer, lead scoring, and monthly A/B tests with real statistical methodology. The standard engagement.
Everything in Studio, plus we own the engineering function end-to-end. The Year-2 platform roadmap is included — your own branded platform replacing whatever rented stack you're on (Discord, Whop, Kajabi, etc.). For operators who want a real engineering seat, not a vendor.
Matteson Systems is a boutique engineering studio working with small business operators who've outgrown off-the-shelf software. We design and build custom websites, data infrastructure, and the analytics layer behind them — and stay on as your engineering partner via monthly retainer.
Based in the San Francisco Bay Area. Currently booking one new engagement for Q3 2026 — by referral and inbound, not outbound.
We take on one to three engagements at a time. The math is intentional — fewer clients means real ownership and on-call that actually picks up.
We design, build, deploy, and stay on. No handoffs to a separate dev shop. No design files that someone else has to translate.
Everything we ship is yours. Source code, schemas, docs, infrastructure. You own the system. We own the engagement.
Send what you have — current site, ad spend, the tools you log into in a typical week. We'll send back a one-page audit with where money is leaking and what we'd build first. Free 90 minutes, no commitment.