Scale
$35K
- Everything in Product
- Integrations scoped to your app
- Load testing and monitoring
Fixed price
A larger product, ready for real traffic.
Everything in Product, plus the integrations your app needs, and load testing and monitoring before launch.
Free discoveryFixed price3-month warranty
Who it's for
Businesses launching to an existing customer base, or products that depend on other systems.
A good fit if
- You expect real traffic from launch day
- The product must connect to systems like an ERP, CRM or logistics provider
- Downtime would cost you customers or revenue
Look at Product or a custom phase instead if
- You have no integrations and modest traffic: Product
- Your scope is bigger still, or you have an existing codebase: a custom phase
Week by week
A working demo every week. The exact plan is agreed with your feature list in week one. Shown for the longest timeline.
- Weeks 1–2
Design and architecture
Feature list, integrations plan, architecture and designs.
- Weeks 3–7
Build
Core product, payments, admin, analytics and roles, demoed every week.
- Weeks 8–10
Integrations
Connect the systems your app depends on, with error handling and retries.
- Week 11
Load testing and monitoring
Test at expected traffic, fix bottlenecks, set up alerts and dashboards.
- Week 12
Launch and handover
Go live with monitoring in place. Your 3-month warranty starts.
What you get at the end
Source codeIn your own repository from day one, with full IP transfer.
DesignsEvery screen and flow, in an editable design file.
CI pipelineAutomated builds and tests, so your next team can keep shipping.
Live productDeployed to production and, for mobile, the app stores.
Handover docsHow it's built, how to run it, and how to change it.
3-month warrantyWe fix bugs in what we built, free, for 3 months.
Add-ons
Quoted separately and built into the same weekly demos.
+ AI feature
Add an AI feature
Search, summaries, an assistant or an agent inside your app. Fixed quote after a short scoping call.
See AI solutions
+ IntegrationConnect another system
A CRM, ERP, booking or shipping provider your product needs to talk to. Fixed quote once we see the API.
Ask about an integration
Planning something bigger?
Free discovery call, a written feature list and a fixed quote. Reply within one business day.
Or email hello@just.engineer