PSP & Aggregator Software Development

We help PSPs and aggregators build scalable, PCI-compliant platforms — from merchant onboarding and transaction switching to tokenization and dispute handling. Whether you’re starting fresh or replacing legacy systems, PrimeFin Labs delivers modular infrastructure built for performance and compliance.

Software Solutions for PSPs & Aggregators

From API-first onboarding to real-time acquirer routing, we build all mission-critical layers for PSP operations.

Merchant Onboarding Engine

KYB, tier logic, doc validation, webhook status.

Transaction Switch

ISO 8583 / REST integration with fallback and velocity control.

Acquirer Management

Dynamic routing by MCC, region, fee, volume.

Dispute & Chargeback Engine

Evidence uploads, reason codes, refund flows.

Merchant Portal

Balances, payout timelines, refund/chargeback visibility.

Settlement & Ledger Layer

Daily payout engine with double-entry accounting.

Admin Console

Role-based dashboards for support, ops, tech, and compliance.

Analytics & Reportin

Real-time dashboards for fees, performance & reconciliation — exportable via API or CSV.

Platform Capabilities

Multi-Acquirer Switching ▼

Real-time routing with failover and fallback logic.

Smart Fee Engine ▼

Tiered commissions, markup logic, and merchant-specific fee profiles.

Token Vault ▼

PCI-DSS tokenization, mapping, and lifecycle controls.

Dispute Management ▼

API + UI-based flows for refunds, reversals, and chargebacks.

Observability Hooks ▼

Real-time queue status, retries, logs, and webhook delivery metrics.

Security & Compliance ▼

PCI-DSS, GDPR, role segregation, and audit-ready logs.

Tech Expertise

With deep expertise across modern programming languages, frameworks, and DevOps ecosystems, PrimeFin Labs builds resilient, scalable, and future-proof fintech infrastructure. Our technology stack ensures seamless user experiences, robust integrations, and regulatory-grade security.

Languages
Go Node.js Java Kotlin TypeScript Python

Infra & Cloud
AWS GCP Kubernetes Terraform

Infrastructure
Kubernetes Docker AWS GCP Terraform

Data & Messaging
PostgreSQL Redis MongoDB Kafka RabbitMQ

Security
PCI-DSS SOC 2 ISO 27001 HSM OAuth2.0

Monitoring
Prometheus Grafana Datadog ELK Stack

Developer-First System Architecture

Our wallet infrastructure is designed for resilience, auditability, and developer velocity — modular, scalable, and fintech-grade.

Step 1

Scoping & Compliance Mapping

Define acquirer list, routing models, KYB tiers, and regional compliance requirements.

Step 2

System Architecture & Flow Design

Design core modules — transaction switching, refund workflows, webhook lifecycle, and ledger strategy.

Step 3

Platform Development & Integration

Build onboarding flows, switching engine, settlement layer, merchant/admin consoles, and API integrations.

Step 4

Security, Testing & PCI Validation

Implement encryption, token vaults, and role-based access. Simulate transaction corridors, sandbox QA, and validate PCI compliance.

Step 5

Go-Live & Operational Monitoring

Deploy production environment with live dashboards, alerts, logging infrastructure, and support playbooks.

Why PSPs Choos PrimeFin Labs?

Fintech Focus

10+ years building wallets, gateways, and payout systems — we specialize in fintech, and nothing else.

High-Speed Infra

Microservices designed for real-time, low-latency processing and 99.99% uptime.

Modular Systems

Composable APIs for ledgers, onboarding, routing, and settlement — easy to integrate, scale, and customize.

White-Label

Launch branded platforms with pre-built modules — fully customizable, with your business model

Resilient Stack

Built-in observability, smart queuing, and rollback support for always-on operations.

Dev-First Tools

Postman kits, Swagger docs, and CI/CD pipelines for seamless handoffs and fast implementation.