References

What I built – and what came out of it.

Five projects across payment systems, billing, fire-service organisation and e-commerce. Each reference covers the project, its features and the challenges – and my role in it.

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References

Konteo Management Panel

Coin mechanisms and prepaid cards per machine do not scale across beverage fleets: cash has to be collected and balances reconciled machine by machine.

ApplicationInfrastructureLaravel 13React / InertiaMariaDB

Konteo Provision

Issuing chips used to mean: a browser next to a USB reader, typing UIDs by hand, hunting for errors.

ApplicationGo 1.24WailsAlpine.js

CuraBill

VBVG 2026: 16 remuneration combinations, deadlines under the BGB, a 15-month filing limit. For professional guardians, hardly possible to bill by hand without errors.

ApplicationLaravel 12React 18 / InertiaTypeScript

WacheDigital

Duty rosters on paper, swaps by word of mouth, operational readiness checked by hand. Roles and duties are set by the BayFwDV.

ApplicationLaravelReact / InertiaREST-API / OpenAPI

Amazon Autocode

Selling software licences and vouchers via Amazon – digitally and by letter – without the vendor portal and without manual handling.

ApplicationPHP 8.3LaravelOrchid

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