# Custom software

> Business-critical web back-ends, line-of-business applications and APIs — for processes that off-the-shelf software cannot cover properly.

When off-the-shelf software does not fit your process, we build the application that fits your company.

## When it helps

Useful when standard solutions miss the last percentage points of your process.

## Key points

- Less manual work in business processes
- Faster lead times for standard workflows
- Stable, maintainable architecture instead of silos

## Details

We build software for processes that define your competitive edge. Where SAP modules fit 70 % and SaaS solutions miss the last 30 %, we begin.

## When do you need this?

- **Your processes are your competitive edge** — a standard solution would push you back to industry average.
- **You have an existing ERP/MES** that does not cover the last 20–30 % of your requirements — but you do not want to replace it.
- **You need an application** that integrates several legacy systems without forcing case handlers into Excel buffers.
- **No off-the-shelf tool exists** for your specialised process — or it would cost more over its lifetime than a custom build.

## What we deliver

- **Business-critical web applications** in Java/Spring (back-end) and React/Next.js (front-end), GDPR-compliant from EU data centres.
- **REST and GraphQL APIs** as a clean integration layer between your legacy systems.
- **Event-driven architectures** with Apache Kafka for high throughput and decoupled services.
- **Clean domain modelling** (Domain-Driven Design, Event Storming) — no big-ball-of-mud applications.
- **Tests, CI/CD, code reviews** and security by design as standard, not add-on.
- **Full documentation**, so your IT can evolve the application autonomously.

## Methodology

1. **Analysis call**: 60 minutes on your specific project — which process, which systems, which bottleneck.
2. **Next step**: if the scope is clear, you receive an offer with scope, milestones and acceptance criteria. If requirements, the domain model or integrations need to be worked out first, we start with a paid concept phase.
3. **Implementation**: once commissioned, we build iteratively in 2-week sprints — with a demo after each sprint.
4. **Rollout & operations**: go-live in the real process, then operations, adjustments and further development on request.

## Typical use cases (industry-focused)

- **Production-planning tool** for a mechanical engineer, integrated into an existing SAP system
- **Order tracking** with real-time view across plants and suppliers
- **Customer-onboarding platform** with document AI and Camunda workflow for regulated industries
- **Field-service app** (PWA, offline-capable) for service and maintenance teams

## Frequent questions

**How long does a typical project take?**
Analysis call to go-live: typically 3–9 months depending on scope. First productive version often 6–10 weeks.

**Can we evolve the module ourselves later?**
Yes. Clean architecture, full documentation and knowledge transfer to your IT are part of every delivery.

**Where does the software run?**
EU data centres by default (Hetzner, Azure EU, AWS EU). On-premises or hybrid on request.

**What about the source code?**
Source-code transfer is part of the work contract. Pre-existing Monadion building blocks remain Monadion property.

## Technologies

- Java
- Spring Boot
- React
- Next.js
- TypeScript
- PostgreSQL
- Kafka
- Docker
- Kubernetes

## Relevant links

- [HTML version](https://monadion.com/en/services/individualsoftware)
- [English overview (llms.txt)](https://monadion.com/en/llms.txt)
- [Full AI context](https://monadion.com/en/llms-full.txt)
- [Book an analysis call](https://monadion.com/en/booking)
- [Contact](https://monadion.com/en/contact)

## Related

- [All services](https://monadion.com/en/services.md)
- [Industries](https://monadion.com/en/branchen.md)