Web & App Development
Greenfield builds, rewrites, and scaling for web apps that have to hold up under real load.
RewritesScalingGreenfield builds
Engineering consultancy
Engineering partners
for the hard parts.
BuiltFast is a senior engineering consultancy. We design, build, and scale web apps, hosting platforms, billing systems, APIs, and AI-driven automation — and we lead the teams that keep them running.
20+ years shipping platforms · web apps · billing · APIs · automation · fractional leadership
We've built and operated hosting platforms at A2 Hosting, Site5, Pressed, and Envato.
20+ yrs
building web & hosting platforms
Millions
of sites & domains served
99.99%
uptime track record
Senior-only
no juniors, no handoffs
Six ways we move the work forward.
From a single rewrite to a platform you license to others — we take on the parts of building software that are hard to hire for and harder to get right.
Platforms & Hosting
Multi-tenant control planes, user dashboards, and the infrastructure underneath — including WordPress at scale.
Control planesInfrastructureWordPress at scale
Billing & Dashboards
Subscriptions, usage-based billing, custom order forms, and the reporting dashboards that make sense of it all.
SubscriptionsUsage-basedReportingOrder forms
APIs, CLIs & SDKs
Developer-facing tooling and integrations — clean APIs, first-class CLIs and SDKs, WHMCS / cPanel and beyond.
APIsCLIs / SDKsWHMCS / cPanel
AI Workflows & Automation
Practical AI woven into real workflows, plus the automation that removes the busywork around them.
AI workflowsAutomationInternal tooling
Fractional Leadership
Fractional CTO / VP engagements and agile delivery for teams that need senior direction — including large-scale migrations.
Fractional CTO / VPScrum & agileMigrations
Senior engineers, embedded in your delivery.
Three ways to work together. Whichever fits, the people you meet are the people who build — there is no bench, and nothing gets handed off.
Project
Project work
Fixed-scope builds and rewrites delivered end to end — from discovery and architecture through launch.
Embedded
Ongoing partnership
We join your team and ship alongside it — writing code, reviewing PRs, and owning systems with you.
Leadership
Fractional leadership
Fractional CTO / VP direction to set architecture, process, and hiring while you scale the team.
Two-week sprints Every PR reviewed Ship to production weekly Senior-only team
A sample of what we've shipped.
Platform
Vector
Serverless WordPress on AWS Lambda, with a multi-tenant control plane and a white-label, API-first platform that partners resell.
Read case studyMigration
Zero-downtime migration
Moved hundreds of thousands of sites and domains between platforms with no customer-facing downtime and no data loss.
Read case studyBilling
Usage-based billing
Metered billing, invoicing, and a real-time reporting dashboard for a usage-based SaaS — from data model to customer UI.
Read case studyOpen source
Developer tooling
CLIs, SDKs, and internal tooling we build and maintain in the open at github.com/built-fast.
View projectsLet's build something
that lasts.
Tell us what you're working on. We'll tell you how we'd approach it — honestly, and usually within a day.