We Modernize Payment Systems
for Banks & Fintechs

Move from legacy infrastructure to cloud-native agility. We architect resilient, compliant, and scalable payment ecosystems.

Cloud Native
PCI-DSS Ready
Scheme Certified
99.8%
System Uptime
5B+
Transactions / Year
$50M+
Revenue Generated
$10M
Ops Savings Delivered
Strategic Focus

End-to-End Payment Modernization

Cloud & Architecture

Migrate legacy switches to Azure/AWS. We design microservices-based architectures that scale with your transaction volume.

  • Cloud-Native Transformation
  • High-Availability Design

ATM & POS Operations

Optimize fleet performance and reduce costs. We manage the full lifecycle of acquiring and issuing platforms.

  • 10,000+ POS Management
  • Dispute & Fraud Mgmt

Compliance & Security

Navigate the regulatory landscape with confidence. We ensure your systems meet global security mandates.

  • PCI-DSS & SOC Compliance
  • EMV & Network Certifications
Detailed Capabilities

Comprehensive Consultancy Services

Deep technical expertise to handle every aspect of the payments lifecycle.

Application Management

Solution design, Business analysis, Development, Deployment, Application monitoring, and support.

System Transformation

Migration strategy, Conversion & Reconciliation engine, and Deployment of modernized infrastructure.

Independent Testing

Functional testing, Automation testing, Performance testing, and Security testing to ensure resilience.

Advisory Services

Strategic planning, Subject matter expertise (SME), System improvements, and optimization.

Business Intelligence

Architecture, Data warehouse, Cubes, Reporting, and Advanced Analytics.

System Integration

Application installation, System architecture design, and complex Interfaces integration.

Real World Impact

Success Stories

ATM Network Optimization

Optimized operations for a global fleet of 285,000 ATMs. Streamlined vendor contracts and implemented predictive maintenance workflows.

$10M
Annual Savings
99.8%
Uptime Achieved

Revenue Innovation

Launched Bitcoin purchase and cardless cash-in features for a major ATM operator, opening new digital revenue streams.

$50M
New Revenue
6 Mo
Time to Market
Center of Excellence

Postilion Specialists

We don't just support Postilion; we optimize it. From version upgrades to custom interface development, we handle the most complex switch environments.

  • Migration from Active:Passive to Active:Active
  • Custom Development (PRTFW, Postcard)
  • EMV & Contactless Implementation

Supported Capabilities

ISO 8583 ISO 20022 NCR NDC Diebold 912 HSM Config Testing & QA
PayNexis Logo

Backed by 100+ Years of Experience

PayNexis Technologies is led by industry veterans who have architected payment systems for the world's largest financial institutions. We bridge the gap between legacy stability and fintech innovation.

Start Your Transformation

Whether you need a full platform migration or a compliance audit, our experts are ready to help.

Your inquiry is confidential. We typically respond within 24 hours.