01
Custom websites & web applications
From a marketing site to a full product: architecture, backend, frontend, and the critical parts in between.
Software studio
We build the software your business outgrew.
Rexus Studio designs, builds, and ships custom web platforms, internal tools, and AI-integrated systems — one accountable team instead of five disconnected vendors.
Production systems shipped across construction, logistics, field services, and commerce.
- Construction
- Logistics
- Field services
- Commerce
Services
One team for the whole system.
Strategy, design, engineering, and AI under one roof — accountable end to end, not handed off between vendors.
02
AI integrated into systems
LLMs embedded where they create leverage: scoring, prediction, extraction, and copilots inside the tools your team already uses — not bolt-on chatbots.
03
Internal tools & operations platforms
Replace the spreadsheets-and-email duct tape with role-based platforms your team runs the business on.
04
End-to-end delivery
Discovery through deployment, SEO, and iteration. We own the whole system, not a slice of it.
The problem
Most companies don't have a software problem. They have a too-many-tools problem.
Growth means a CRM here, a spreadsheet there, three half-finished apps, and email holding it together. We replace that sprawl with systems built to fit exactly how your business runs — designed, built, and operated by one accountable team.
- CRM + spreadsheet + 3 half-finished apps
- One platform built to fit how you run
- Five vendors pointing at each other
- One accountable team, end to end
Selected work
Systems in production today.
A sample of platforms we've shipped. Client details are anonymized; outcomes and stack are not.
BuzzWise
Own productAgriculture — beekeeping
Rexus Studio's own product — a free, no-signup toolkit for US beekeepers: data-grounded calculators, a readiness quiz, 50-state law and season guides, and an AI-assisted hive-management app, across 180+ pre-rendered pages built for search.
ReactTypeScriptViteTailwind CSS+4Kaizzon
Own productConstruction — commercial specialty contractors
Rexus Studio's own product — one integrated operations platform for commercial specialty contractors: RFIs, submittals, change orders, AIA G702/703 billing, field reports, and live job financials in one system, with Claude writing the daily brief and reports. Contractors own the code and the data, not a subscription.
Next.jsReactTypeScriptNestJS+4
Approach
A sequence we run every time.
Five steps from understanding the business to improving the system once it's live.
- 1
Discover
Map how the business actually works and where the tools fail it.
- 2
Architect
Design the data model and system shape before feature code.
- 3
Build
Ship in working increments, full-stack, with tests.
- 4
Ship
Deploy to production infra, instrument, and harden.
- 5
Iterate
Use it, measure it, improve it.
Built with
- Next.js
- React
- NestJS
- PostgreSQL
- Prisma
- Tailwind
- Vercel
- Railway
- Anthropic Claude
AI-native in how we build, not just what we build.