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Payments software development services

We build payment gateways, orchestration layers, PSP back-offices and reconciliation engines — engineered to survive Black-Friday-grade load.

Gateways, switches and orchestration that actually settle

Auth uptime
99.99%
Auth-rate uplift via routing
+8%
Reconciliation breaks at month-end
0

The payments problems software finally fixes

Every industry has its own gravity well of pain. Here is where payments teams typically lose the most time, money and trust — and where we focus first.

  • Patchwork integrations

    Stripe + Razorpay + ACH + UPI + crypto, each with their own webhook quirks.

  • Auth-rate erosion

    Single-PSP routing leaks 5-10% of revenue you never see.

  • Fraud / chargebacks

    Every false positive is a lost customer; every false negative is real money.

  • Reconciliation pain

    Settlement files, FX timing and refunds make month-end a nightmare.

Capabilities purpose-built for your domain

Six things teams typically ask us to build first — each shipped to production, not demo, quality.

  • Payment gateways

    Hosted, drop-in and API-first gateways with 3DS2, tokenisation and SCA flows.

  • Payment orchestration

    Smart routing, retries, fail-over and least-cost selection across PSPs.

  • PSP & issuing back-office

    Merchant onboarding, card issuing, BIN sponsorship and program management.

  • Reconciliation & settlement

    Multi-source matching, breaks workflow, chargebacks and merchant payouts.

  • Fraud & risk

    Rules + ML scoring, device fingerprinting, velocity, 3DS challenge orchestration.

  • UPI / ACH / SEPA

    UPI flows, ACH/RTP, SEPA Instant and SWIFT/wire integrations.

Technologies for payments systems

  • Go
  • Java
  • Node.js
  • PostgreSQL
  • Kafka
  • Redis
  • AWS
  • Vault
  • Stripe / Adyen / Razorpay

Built audit-ready

We design with the relevant frameworks in mind from architecture through production hand-off.

  • PCI DSS
  • PSD2
  • SOC2
  • NPCI
  • EMV 3DS2

How we deliver in payments

Payments tech is unforgiving — every failed authorisation has a customer-support call attached, and every reconciliation break compounds.

Our designs centre PCI DSS, idempotency, observability and the fraud / reconciliation tooling needed to operate in the real world.

  1. 01

    Threat model

    PCI DSS scope, key handling and data-flow mapping first.

  2. 02

    Architecture

    Idempotency keys, exactly-once accounting, observable everything.

  3. 03

    Build

    Auth → capture → settle → refund → reconcile vertical slice.

  4. 04

    Certification

    PCI DSS scan / pen test / RoC support and PSP certification.

  5. 05

    Operate

    24×7 SOC, runbook on-call, monthly auth-rate and recon reviews.

Payments software — questions teams ask us

Can you architect to PCI DSS Level 1 from scratch?

Yes — segmented CDE, tokenised PAN, HSM key custody, audit-trailed access and SAQ-D / RoC-ready posture is our baseline for payments work.

Do you integrate UPI, ACH, SEPA, RTP and card networks?

We integrate UPI (NPCI), ACH (Nacha), RTP, SEPA SCT/Instant, RTGS/NEFT/IMPS, and Visa/Mastercard direct connect or via processors.

How do you lift auth rates?

Smart routing across PSPs, network token migration, 3DS2 frictionless flow, retry policy tuning and decline-recovery workflows typically add 3-8% absolute auth.

Ready to build for payments?

Tell us where it hurts most. We will reply within 24 hours with a tailored discovery plan.

  • Free NDA
  • Response in 24h
  • No commitment