POS Payment Mechanism Development
Deliver fast, secure, and compliant card-present payment software inside Android and Linux-based terminals — purpose-built for QSRs, retail, kiosks, and unattended networks.
What We Build?
We build the core transaction layer inside POS terminals — powering secure EMV, NFC, and Tap-to-Pay flows. Whether for attended, unattended, or mobile terminals, we engineer PCI-compliant runtime software optimized for uptime, throughput, and host compatibility.
Transaction Engine
EMV, magstripe, and contactless card handling, including PIN, reversals, and refunds
Acquirer Integration
ISO 8583, XML, or REST host communication with fallback and dynamic routing
Security Layer
PCI-DSS key management, encryption, tokenization, P2PE
Peripheral Interface
Support for printers, PIN pads, barcode scanners, and screens
Offline Resilience
Store-and-forward, retry queues, sync logic for connectivity drop-offs
Multicurrency Support
Closed-loop, multicurrency, and private label card compatibility
Core Platform Capabilities
Enhance your payment infrastructure with scalable solutions that support multi-acquirer routing, secure transactions, and seamless compliance.
Our modular architecture enables fast integration and smooth scaling across regions, ensuring operational efficiency.
- Launch EMV terminals and SoftPOS apps faster
- Route transactions via multiple acquirers
- Customize flows per merchant or vertical
- Enable remote diagnostics and updates
Our platform simplifies payment acceptance with support for EMV, NFC, and QR codes, offering both cashier-led and self-checkout options.
It ensures efficient transaction management, from refunds to monitoring terminal uptime, while keeping your systems secure and compliant.
- Accept EMV, NFC, QR, and closed-loop cards
- Manage tips, refunds, and printed receipts
- Monitor terminal uptime and sync status
- Apply branding and terminal-level logic
Integrate our flexible, customizable runtime into your Android and Linux-based terminals for secure, multi-device payment solutions.
Our software supports peripherals like printers and scanners, ensuring smooth operations across retail and enterprise systems.
- Pre-install runtime software on Android/Linux
- Support multi-device, multi-region fleets
- Enable remote key injection and tokenization
- Integrate with printer, scanner, PIN pad, and display
Platform & Terminal Compatibility
Compatible with the devices your business already runs — from modern Android smart POS to legacy Linux terminals and unattended kiosks. Built to perform across diverse hardware ecosystems without vendor lock-in.
Android Smart POS
Sunmi, PAX, Ingenico AXIUM, Newland, etc.
Embedded Linux Terminals
Verifone-style legacy systems
Trusted and highly
Trusted and highly rated by our clients.
Unattended Devices
Smart lockers, ticket kiosks, vending machines.
Admin Console & Monitoring Tools
- Live terminal health + transaction status feeds
- OTA update manager & remote diagnostics
- Transaction sync status & retry alerts
- Crash reporting with telemetry logs
- Geo-tagged activity map & fleet segmentation
- Role-based access (ops, support, engineering, audit)
Who We Serve?
From PSPs and acquirers to OEMs and merchant networks — our POS software solutions are built to align with your
business model, deployment needs, and scale ambitions.
We help PSPs launch secure, acquirer-agnostic EMV and SoftPOS stacks — complete with merchant-configurable flows, dynamic host routing, and remote terminal management tools.
Our software layers are optimized for multi-merchant support, fast integration, and real-time reporting.
We build modern replacements for legacy card-present systems — including terminal-side transaction engines, acquirer routing modules, offline sync logic, and reconciliation support.
Our PCI- and EMV-compliant runtime helps acquirers reduce time-to-market while expanding coverage.
Region-specific onboarding integrations with Trulioo, Sumsub, IDNow, and others. Features include document OCR (MRZ, selfie, proof of address), liveness detection, video KYC, sanctions screening, adverse media checks, and politically exposed person (PEP) classification.
We support AML transaction monitoring rules, case management workflows, and audit logging for compliance teams.
Connect seamlessly with QuickBooks, Xero, NetSuite, SAP, and other ERP suites. Map transactions to general ledger accounts, automate settlement reconciliation, and generate real-time P&L summaries.
Custom chart-of-accounts mapping, tax code syncing, invoice batching, and financial period locking supported via API or SFTP-based data exchange.
Industry Use Cases
Our terminal-native software powers reliable, secure, and fast transactions across real-world retail and unattended environments — tailored for high-volume, high-velocity payment scenarios.
Why PrimeFin Labs?
Terminal-Native Engineering
100% focused on embedded and card-present systems
Built for Scale
Proven on thousands of terminals across industries
Fast Go-Live
First build in <4 weeks, certification-ready deployments in 8–12 weeks
Secure from Day 1
PCI, P2PE, and EMV-compliant architecture
Zero UI Bloat
Pure backend payment layer — no cashier UIs, no distractions
Hardware Agnostic
Android, Linux, and hybrid terminal support