# Software development: PHP, Python, C#, C++

> Custom software, interfaces and modernisation of legacy systems in PHP, Python, C# and C++. From analysis to operation, Berlin and Brandenburg, since 2006.

Source: https://1x1it.de/en/softwareentwicklung/

We develop custom software, connect your existing systems and move legacy systems step by step to a modern architecture. From analysis to operation, all from one provider.

[Discuss a software project](https://1x1it.de/en/kontakt/#anfrage)
See areas of use

Software & interfaces Type 02

- **Languages:** PHP, Python, C#, C++
- **Interfaces:** REST, GraphQL, SOAP, EDI
- **Web:** Python/Flask, JavaScript
- **Scope:** analysis to deployment
- **Own product:** 1x1-WorkOrderAgent
- **Estimate:** first call and rough estimate

## Where we build software

Four areas in which our developments have proven themselves in practice. Often it is a mix: a new application that connects two old systems.

[Plan the right database at the same time](https://1x1it.de/en/datenbankdesign/)

- **Custom software:** From requirements analysis and architecture to deployment. For processes that no off-the-shelf product covers.
- **Interfaces:** REST, GraphQL, SOAP or EDI: we connect your programs so that data moves from one system to another without retyping and without loss.
- **Modernising legacy systems:** Refactoring and new architecture layers instead of a rebuild all at once. Your proven software keeps running while we renew it step by step, without data loss.
- **Web applications:** Applications that grow with your business and run fast on PC, tablet and smartphone. Built with Python/Flask, modern JavaScript and a matching database.

## From requirement to running software

You describe what the software should do. We give you a rough estimate before any costs arise.

- Clarify requirements: We look at your processes and existing systems and write down what the software must be able to do.
- Plan the architecture: Data model, interfaces and technology are chosen so that the solution stays maintainable.
- Develop and deliver: Deployment into your environment and long-term maintenance by the same developers.

woa.1x1it.de/auftraege

WorkOrderAgent
Orders Customers Appointments Timesheets Invoices Banking Documents

Orders New order

Open 14

In progress 6

To invoice 3

| No. | Customer | Status | Amount |
| A-2419 | Example Joinery | In progress | €1,240.00 |
| A-2418 | Sample Electrical Ltd | Accepted | €3,980.50 |
| A-2417 | Market Square Practice | E-invoice | €612.80 |
| A-2416 | North Property Management | Quote | €2,150.00 |

Recreated view with sample data. Real screenshots are in the [WorkOrderAgent wiki](https://1x1it.de/en/wiki/workorderagent/) (in German).

## Born from practice: the 1x1-WorkOrderAgent

Our work on custom software has turned into a product of our own. WorkOrderAgent connects orders, accounting and office and is available to trades businesses and service providers as a ready-made standard solution.

For you, this means we know accounting, e-invoicing and interfaces to tax advisers from our own development work, not just from a specification.

[See WorkOrderAgent](https://1x1it.de/en/workorderagent/)

## Starting a software project?

Briefly describe what you need.

[0173 644 22 17](tel:+491736442217)

[Discuss a software project](https://1x1it.de/en/kontakt/#anfrage)