Fintech Software Solutions

We partner with fintech innovators — from startups to scale-ups — to engineer future-proof software across banking-as-a-service, payments, lending, KYC/AML, and regulatory tech.

Key Capabilities Across Fintech Platforms

We engineer the core infrastructure that underpins high-performing fintech products — modular, API-first, and built to support compliance, scalability, and real-time financial operations.

Composable Architecture

Modular microservices for ledger, routing, onboarding, and KYC

API-First Delivery

RESTful APIs, Webhooks, Swagger docs, and dev sandbox with test payloads

General Ledger Engine

Immutable double-entry accounting synced with payouts, disbursals, and bank files

Smart Risk & Routing Logic

Velocity filters, region-based acquirer logic, fallback rules

Security-First Design

PCI-DSS, P2PE, tokenization vault, OAuth2.0 & JWT authentication

Real-Time Observability

Live transaction tracing, queue status, anomaly flags, and alerts

Software Solutions for Fintech Innovators

Fintech Startups

Wallet MVPs, KYC/AML modules, payment APIs, core ledger infrastructure

PSPs & Aggregators

Merchant onboarding engines, acquirer switch, chargeback workflows, smart routing

Neobanks & Embedded Finance

Account tiering, debit card APIs, credit products, white-labeled finance layers

Remittance & FX Companies

Multi-corridor engines, FX calculation, KYC onboarding, payout rail integrations

Fintech Project Development Process

Industry-Specific Discovery ▼

Map product goals, compliance scope, and technical priorities.

Architecture & UX Design ▼

System blueprint and user workflows for KYC, onboarding, and payments.

MVP Development ▼

Build and integrate modules like ledger, routing, wallets, onboarding, and settlement.

Security & Compliance Validation ▼

Penetration testing, audit logs, PCI/SOC2 implementation.

QA + UAT ▼

Corridor-wise testing, sandbox simulations, and workflow validation.

Go-Live & Monitoring Setup ▼

Observability tools, rollback systems, and live support for launch.

Tech Stack & Engineering Expertise

We use proven technologies trusted by high-scale fintechs — enabling secure, performant, and cloud-native platforms with deep
observability and compliance baked in.

Languages
Go Node.js Java Kotlin TypeScript Python

Frameworks
NestJS Spring Boot React Flutter

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

Why PrimeFin Labs?

Fintech Focus

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

Compliance-Led Execution

PCI, GDPR, RBI, FCA, MAS aligned from day one

Fast MVPs, Clean Scale-Up

Go live in 4–6 weeks, scale securely

White-Label

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