Custom Software Development

Custom web, mobile and backend software

We design, build and ship custom software with one dedicated team, two-week sprints and weekly demos — and you own everything we deliver.

Custom web, mobile and backend software
How we run a build

One team, weekly demos, your code

A dedicated team scopes the work with you, then ships in two-week sprints with a demo every week. You see working software early, get full access to the repository and documentation, and decide what goes live. No black boxes, no lock-in.

One team, weekly demos, your code
What we build

Three things, done properly

Web apps

Single-page and server-rendered apps in React, Vue or Angular, with APIs in Node, Python, PHP/Laravel or Rails.

Backend & integrations

REST and GraphQL APIs, third-party integrations and high-load systems that hold up under real traffic.

Mobile apps

Native iOS (Swift) and Android (Kotlin), or one Flutter codebase for both — published to the App Store and Google Play.

How we work

From kickoff to launch

  1. 01

    Scope & estimate

    We turn your goals into a prioritised backlog and a realistic estimate.

  2. 02

    UI build

    Reusable components built to the agreed designs.

  3. 03

    Backend & architecture

    Data models, APIs and infrastructure sized to your load.

  4. 04

    Weekly demos & QA

    A working build every week, tested as we go.

  5. 05

    Environments

    Separate dev, staging and production with automated deploys.

  6. 06

    Testing & fixes

    Functional, edge-case and usability testing before release.

  7. 07

    Support

    A maintenance agreement for fixes, updates and new features.

Deliverables

What you get

  • A dedicated team — PM, developers and QA
  • Source code and documentation you own
  • A weekly demo and sprint report
  • Automated tests and CI/CD
  • Staging and production environments
  • A support plan after launch
Tech stack

Tools we build with

React
Vue
Angular
Java
Python
Node.js
PHP
Laravel
Swift
Kotlin
Flutter
Ruby
GitHub
Jira
Slack
Power BI
FAQ

Questions, answered

How are projects priced?

Fixed-scope for well-defined work, or time-and-materials for evolving products. We agree the model before we start.

Who owns the code?

You do — fully. We hand over the repository, documentation and infrastructure access.

Can you work with our in-house team?

Yes. We can run a project end-to-end or embed engineers alongside your team.

What happens after launch?

We offer a maintenance plan for bug fixes, security updates and new features.

Let's connect

Let's build something great.

Drop us a line and our team will get back to you within 24 hours.

EMAIL office@rnm.dev
AT

Austria

Rainmaker GmbH Softwareentwicklung

Linke Brückenstraße 10
4040 Linz

+43 676 4472718
KZ

Kazakhstan

ТОО RNM KZ

ул. Габдуллина 44
Алматы

+7 777 5555534