sapient codelabs

Fintech

Fintech Software Development

Secure payments, wallets and financial tooling, built to scale.

Overview

Payments, wallets and financial tooling — secure, compliant and built to hold up under real transaction volume.

We build fintech software that moves money safely — payment flows, digital wallets, ledgers, subscription billing and KYC/onboarding. Security and compliance are designed in: tokenized payment data, strong authentication, audit trails and a PCI-aware architecture.

From secure APIs to customer-facing apps, we ship financial products that hold up under real transaction volume — built by one senior team, from first version to paying customers.

Security and scale, by design

In fintech, correctness and trust are the product. We design ledgers for consistency, build idempotent payment flows, and instrument everything so you can reconcile to the cent. Compliance (PCI-DSS, KYC/AML) is planned from the start, not bolted on.

We integrate the rails you need — Stripe, Razorpay, UPI and bank APIs — behind clean abstractions that keep you flexible as you grow.

What we build

Capabilities
  • Payments, checkout & wallet flows
  • Ledgers, reconciliation & subscription billing
  • KYC/AML onboarding & identity verification
  • PCI-aware, tokenized & audited architecture
  • Financial dashboards & reporting

How we work

Process
  1. 01

    Discovery & compliance mapping

    We map money flows, risk and compliance (PCI, KYC/AML) into a concrete, buildable plan.

  2. 02

    Design & architecture

    Ledger, payment and identity design on a security-first architecture built for correctness and scale.

  3. 03

    Build & integrate

    One senior team ships iteratively, integrating gateways, banking rails and identity providers.

  4. 04

    Launch & scale

    We test hard, launch, and add the observability and reconciliation to run in production.

Questions

Frequently asked

Is the software you build secure and compliant?

We build to fintech security standards — tokenization, encryption, strong authentication and audit logging — on a PCI-aware architecture, working alongside your compliance and payment partners.

Which payment providers do you integrate?

We integrate major gateways and rails — Stripe, Razorpay, PayPal and bank/UPI — for payments, payouts, wallets and subscriptions.

Can you scale to high transaction volume?

Yes — we design ledgers and payment flows for consistency and throughput, with the observability to run them reliably in production.

Fixed price · $2,3002-week sprint

Building a product for this sector?

Start with a 2-week Scoping Sprint — we pin down exactly what to build and what it costs before you commit. Fixed price, credited against the build.

See the sprint

Building in fintech? Let's scope it.

Start a project →
Book a 15-min scoping call