Software for Payment & Point-of-Sale Systems

PCI-DSS-compliant POS software, payment gateway integration and embedded HMI for POS terminals – reliable and secure.

Payment software that millions of transactions trust

Payment and POS systems must meet the highest requirements for security, availability and payment standards (PCI-DSS, EMV). BitPointer GmbH develops software for POS terminals, payment backends and the embedded HMI interfaces that cashiers and customers use every day – with Qt/QML for engaging, high-performance user interfaces on resource-constrained hardware.

POS terminal software: embedded Linux, Qt/QML HMI, peripheral integration
Payment gateway integration: SEPA, credit card, NFC/contactless, BNPL
PCI-DSS-compliant architecture & security reviews
Fiscalisation (KassenSichV, TSE integration) for the German market
Backend platforms: transaction management, reporting, reconciliation
OTA update management for terminal fleets

Why BitPointer for payment & POS?

PCI-DSS & security

Card data is highly sensitive. We implement PCI-DSS-compliant architectures with point-to-point encryption (P2PE), tokenisation and secure communication channels – so your customers and your business stay protected.

Qt/QML embedded HMI

Modern POS terminals need engaging, responsive interfaces. With Qt/QML we develop performant HMIs that run smoothly even on resource-constrained ARM processors and help reduce queue times.

Fiscalisation & compliance

For the German market we integrate the TSE (technical security device) according to KassenSichV and ensure DSFinV-K-compliant data storage – no unpleasant surprises during tax audits.

FAQ

Frequently asked questions about payment & POS software

PCI-DSS (Payment Card Industry Data Security Standard) is a global security standard for all organisations that process credit card data. It defines 12 requirement areas: from network security via encryption to access controls and penetration tests. On the software side this means: no storage of PAN data in clear text, P2PE, regular security reviews and secure development practices (PA-DSS).

We integrate all common payment methods: credit and debit cards (EMV chip & PIN, contactless NFC), SEPA direct debit, Apple Pay, Google Pay, BNPL services (Klarna, PayPal) as well as loyalty cards and voucher systems. Integration is via payment gateways (Ingenico, Verifone, Adyen, Stripe) or direct acquirer connections.

The Cash Register Security Ordinance (KassenSichV) requires all companies in Germany to equip electronic recording systems with a certified technical security device (TSE). Every booking must be tamper-proof and signed with a TSE certificate. We integrate TSE hardware (cloud-based or local) into your POS software and ensure a DSFinV-K-compliant data structure.

Yes. Self-checkout kiosks are one of our specialties: Qt/QML-based HMIs for touchscreens, integration of barcode scanners, scales, printers and payment terminals, connection to central POS backend systems and POS software, plus offline capability for uninterrupted operation even during network outages.

We develop OTA update systems (over-the-air) that enable secure, rolling deployment to thousands of terminals. Features such as A/B updates, automatic rollback on failure, update windows (e.g. overnight) and detailed update-status monitoring are standard. Cryptographic signing of every update protects against supply-chain attacks.

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