Specialized engineering talent for payment platforms, financial technology systems, and secure transaction processing environments.
Payments technology requires deep domain expertise across transaction processing, compliance frameworks, payment protocols, and certification environments.
EverExpanse delivers engineering talent with hands-on experience across the complete payment technology ecosystem, helping organizations accelerate development of payment products, platforms, and integrations.
Our engineers have supported global payment processors, device manufacturers, and FinTech platforms across EMV-certified environments, digital payment infrastructures, and high-volume transaction processing systems.
EMV Kernel Development (Contact & Contactless)
EMV L1 / L2 / L3 Certification support
Payment terminal software development
SoftPOS development
Android POS and Linux POS development
Payment device firmware integration
Embedded C / C++
Java / Kotlin (Android POS)
Linux-based embedded systems
Android POS application development
Payment terminal UI development
Transaction processing logic
Device integration (card reader, NFC, PIN pad, printer)
Verifone
Ingenico
PAX
Newland
Castles Technology
SoftPOS platforms
Payment gateway integration
Payment gateway backend development
Payment orchestration platforms
API-based payment integrations
Java
GoLang
.NET Core
Node.js
REST APIs
Microservices architecture
ISO 8583
ISO 20022
JSON / REST
SOAP
Payment switch development
Transaction routing systems
Authorization and settlement systems
Transaction lifecycle management
Java
SQL Server
GoLang
Redis
PostgreSQL
Kafka
EMVCo certification support
Visa / Mastercard certification support
PCI DSS compliance engineering support
Scheme certification integration
Contactless payments (NFC)
QR code payments
Mobile wallets integration
Tokenization
Secure Remote Commerce (SRC)
3D Secure (3DS)
Embedded C , C++, Java, GoLang, .NET Core, Kotlin, Python
Android, Linux, Embedded systems
PostgreSQL, SQL Server, MySQL, Oracle
Kafka, RabbitMQ, REST APIs, ISO 8583
Azure, AWS, Linux server environments
Payment Processors
Payment Gateway Providers
POS Terminal Manufacturers
FinTech Companies
Banks and Financial Institutions
Payment Aggregators
Payment Device Manufacturers