Custom SaaS
Purpose-built software for operators who have outgrown generic tools. We design, build and run the product.
Custom software, designed and operated.
R3BUILD DEV builds SaaS products, web platforms and eCommerce for teams that need software that works — not just software that ships.
What we build
End-to-end product development for businesses that need software that fits, not software that almost fits.
Web platforms & APIs
Public-facing sites, internal dashboards and REST/GraphQL APIs that connect the tools your business already relies on.
eCommerce
Storefronts, checkout flows and commerce integrations built for conversion, not just presence.
Stack
Built on proven foundations
We work with widely-adopted, well-maintained tools. No exotic dependencies, no lock-in.
Languages & runtimes
- TypeScript
- Node.js
- Python
- Go
Frontend
- React
- Next.js
- Astro
- Tailwind CSS
Backend & data
- PostgreSQL
- Redis
- Prisma
- tRPC
Infrastructure
- Vercel
- Railway
- Cloudflare
- Supabase
How we work
A small, senior team. No hand-offs, no project managers between you and the engineers.
Understand the problem
We start with the business constraint — what is slow, brittle or missing — before any code is written.
Design with engineers in the room
Decisions about UX and architecture happen together. No handoff friction, no translation loss.
Ship in production cycles
Working software in weeks, not quarters. We iterate on real usage, not staged demos.
Operate what we build
We stay on. Monitoring, maintenance and feature evolution are part of the engagement.
About R3BUILD DEV
R3BUILD DEV is the development arm of R3BUILD STUDIO — a product studio that designs, builds and operates software for operators who need it to work reliably, at scale, over time.
We take projects from concept to production and stay involved after launch. Our engagements are direct: no subcontractors, no rotation of junior developers, no loss of context mid-project.
The studio also runs R3BUILD AI — applied AI tooling built on the same infrastructure foundations.
Notes from the build.
Engineering write-ups, architecture decisions and lessons from production on the R3BUILD blog.
Read the blog Work with us
Start a conversation
Tell us what you are building or struggling to build. We will respond within one business day.