We architect and deploy custom smart contracts that form the backbone of your Web3 application. Our development process is built on security-first principles and proven patterns.
LABS
Services
IoT-Enabled POS Device Development
Full-stack development of blockchain-integrated IoT POS devices (smart vending machines, kiosks) that autonomously process payments, manage inventory on-chain, and trigger supply chain events.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built to your exact specifications.
- Full Lifecycle Development: From initial design and
Solidity/Rustcoding to deployment and on-chain verification. - Security as Standard: All contracts undergo internal audits and are built using
OpenZeppelinlibraries. - Gas Optimization: We write for efficiency, targeting up to 40% lower transaction costs for end-users.
- Multi-Chain Ready: Deployable on EVM chains (Ethereum, Polygon, Arbitrum) and Solana.
We deliver auditable, maintainable code that executes exactly as intended, reducing your time-to-market and technical risk.
key-features-cards
ENTERPRISE-GRADE
Core Capabilities of Our IoT POS Development
We deliver secure, scalable, and compliant IoT payment terminals that integrate seamlessly with your existing financial stack and blockchain infrastructure.
01
Secure Hardware & Firmware
Custom-built POS devices with hardware security modules (HSM), secure boot, and tamper-proof enclosures. Firmware is developed in Rust/C for memory safety and audited by third-party security firms.
FIPS 140-2
Compliance
CC EAL5+
Certification Target
02
Blockchain Payment Integration
Native support for on-chain settlements via EVM, Solana, and Layer 2s. Process crypto payments, stablecoin transactions, and tokenized loyalty points with sub-2 second confirmation.
< 2 sec
Tx Confirmation
EVM/Solana
Protocols
03
Real-Time Data & Analytics
IoT sensors stream transaction, inventory, and device health data to your dashboard. Monitor performance, predict maintenance, and generate actionable business insights via our APIs.
< 100ms
Data Latency
24/7
Monitoring
04
Regulatory Compliance Suite
Built-in tools for PCI DSS, AML/KYC checks, and regional financial regulations (PSD2, GDPR). Automated reporting and audit trails simplify compliance for global operations.
PCI DSS L1
Ready
Auto-KYC
Integration
05
Scalable Fleet Management
Remotely deploy firmware updates, manage cryptographic keys, and monitor thousands of devices from a single dashboard. OTA updates ensure security patches are applied within 24 hours of release.
10k+
Devices Managed
< 24h
Patch Deployment
06
Custom SDK & API Development
White-label SDKs for iOS, Android, and web to embed payment functionality into your apps. REST and WebSocket APIs for seamless integration with your backend and ERP systems.
3 Weeks
SDK Delivery
99.9% SLA
API Uptime
benefits
DELIVERABLES & METRICS
Business Outcomes for Retail & FinTech Leaders
Our IoT-Enabled POS Device Development delivers measurable results that directly impact your bottom line and competitive edge. We focus on outcomes, not just features.
01
Faster Time-to-Market
Deploy a fully integrated, custom IoT POS solution in under 6 weeks, from concept to pilot. Our modular architecture and pre-built compliance modules accelerate development.
< 6 weeks
Pilot Deployment
50%
Faster Development
02
Reduced Total Cost of Ownership
Lower long-term costs with secure, upgradable firmware and efficient transaction batching. Our architecture minimizes gas fees and hardware maintenance cycles.
40%
Lower Gas Fees
30%
Reduced Maintenance
03
Enhanced Security & Compliance
Hardware wallets, PCI DSS-aligned security, and on-chain transaction immutability. Every device is built with hardware security modules (HSM) and undergoes penetration testing.
SOC 2 Type II
Compliance
0
Critical Vulnerabilities
04
Seamless Multi-Chain Integration
Support for Ethereum, Polygon, Solana, and other EVM chains out-of-the-box. Enable customers to pay with any major token or stablecoin directly at the point of sale.
5+
Supported Chains
< 2 sec
Cross-Chain Settlement
05
Real-Time Data & Analytics
Gain actionable insights with on-chain transaction dashboards, inventory tracking via NFTs, and customer loyalty program analytics. All data is verifiable and tamper-proof.
99.9%
Data Uptime SLA
Real-time
Analytics Latency
06
Future-Proof Architecture
Built with upgradeable smart contracts and over-the-air (OTA) firmware updates. Your POS system evolves with new protocols, tokens, and regulatory requirements without hardware replacement.
Modular
Design
OTA Updates
Deployment
Phased Development & Deliverables
IoT-Enabled POS Device Development Tiers
A structured comparison of our development packages, from MVP to enterprise-grade deployment, detailing deliverables, support, and pricing.
| Feature / Deliverable | Starter (MVP) | Professional (Production) | Enterprise (Scaled) |
|---|---|---|---|
Hardware Integration & Prototyping | Single device model, basic SDK | 2-3 device models, custom SDK | Custom hardware design, full SDK suite |
Core POS Smart Contracts | Basic payment & settlement | Advanced escrow, multi-token, loyalty | Custom DeFi integrations, cross-chain |
Security Audit Scope | Core contract review | Full system audit (contracts + API) | Continuous auditing & bug bounty program |
Backend API & Dashboard | Essential transaction API | Full admin dashboard, analytics | White-label dashboard, advanced BI tools |
Deployment & Go-Live Support | Testnet deployment | Mainnet deployment + 2 weeks support | Managed mainnet launch + 1 month support |
Ongoing Maintenance SLA | Best effort | 99.5% uptime, 12h response | 99.9% uptime, 1h critical response |
Scalability Features | Single chain support | Multi-chain readiness, layer-2 options | Custom sidechain/rollup architecture |
Estimated Timeline | 6-8 weeks | 12-16 weeks | 20+ weeks (custom) |
Starting Price | $50,000 | $150,000 | Custom Quote |
how-we-deliver
PROVEN METHODOLOGY
Our Development Process: From Concept to Deployment
A structured, transparent approach to building secure, scalable IoT-POS systems that integrate seamlessly with your existing payment infrastructure and blockchain networks.
01
Discovery & Architecture Design
We begin with a deep technical analysis of your payment flows, compliance requirements, and target blockchain (e.g., Ethereum, Polygon, Solana). We deliver a detailed technical specification and system architecture diagram, ensuring the hardware-software-blockchain integration is sound from day one.
2-3 days
Initial Scoping
1 week
Architecture Plan
02
Hardware Integration & Firmware Development
Our engineers develop custom firmware for your chosen POS hardware (e.g., Ingenico, PAX) to enable secure key management, transaction signing, and communication with our middleware. We handle driver compatibility, secure element (SE/HSM) integration, and power optimization.
Certified
PCI-PTS 5.x
FIPS 140-2
HSM Standards
03
Secure Middleware & API Layer
We build the critical bridge between your POS device and the blockchain. This includes a secure, low-latency API gateway, transaction queuing, nonce management, and gas optimization logic. All APIs are documented with OpenAPI/Swagger for easy integration with your backend.
< 100ms
API Latency
REST & WebSocket
Protocols
04
Smart Contract & Settlement Logic
We develop and audit the on-chain settlement contracts that finalize payments. This includes custom logic for multi-token support (ERC-20, ERC-1155), merchant payouts, loyalty programs, and real-time fiat conversion oracles. Contracts are built with OpenZeppelin libraries.
Solidity 0.8+
Language
Third-Party Audited
Security
05
Rigorous Testing & Certification Prep
We conduct end-to-end testing in a sandbox environment simulating real-world transaction volume, network congestion, and failure scenarios. Our process includes penetration testing, hardware tamper tests, and prepares the full stack for PCI DSS and relevant financial authority certifications.
99.9%+
Test Coverage
PCI DSS
Compliance Ready
06
Deployment & Ongoing Support
We manage the staged rollout to pilot locations, provide comprehensive documentation and training for your ops team, and establish monitoring dashboards for transaction health. We offer SLA-backed support for maintenance, updates, and scaling to new regions or blockchains.
4-6 weeks
Pilot Deployment
24/7
DevOps Support
IoT-Enabled POS Device Development
Build vs. Buy: Why Custom Development Delivers More Value
A direct comparison of the total cost, risk, and time investment between developing a custom IoT-POS solution with Chainscore versus attempting to build it entirely in-house.
| Factor | Build In-House | Custom Development with Chainscore |
|---|---|---|
Time to Market | 6-12 months | 8-12 weeks |
Initial Development Cost | $150K - $400K+ | $80K - $200K |
Security & Compliance Risk | High (unaudited, PCI-DSS gap) | Low (audited, compliant-ready) |
Hardware Integration Expertise | Requires new hires/consultants | In-house team with proven track record |
Ongoing Maintenance & Updates | Your engineering team (2+ FTEs) | Optional SLA with 24/7 monitoring |
Scalability & Protocol Support | Limited to initial build | Multi-chain ready (Solana, Polygon, Base) |
Total Cost of Ownership (Year 1) | $300K - $700K+ | $120K - $250K |
Guaranteed Uptime SLA | None (your responsibility) | 99.9% with defined penalties |
Technical & Commercial Insights
Frequently Asked Questions on IoT POS Development
Get clear, specific answers to the most common questions CTOs and product leads ask when evaluating a custom IoT POS development partner.
A standard IoT POS device with core payment processing, inventory sync, and basic analytics typically deploys in 6-8 weeks. Complex integrations (e.g., multi-chain crypto payments, advanced loyalty engines, custom hardware peripherals) can extend this to 12-16 weeks. We provide a detailed, phased project plan with weekly milestones during discovery.
ENQUIRY
Get In Touch
today.
Our experts will offer a free quote and a 30min call to discuss your project.
NDA Protected
Confidentiality24h Response
Time to ValueDirectly to Engineering Team
No Sales Fluff10+
Protocols Shipped
$20M+
TVL Overall