Custom software for payment service providers, embedded finance platforms, digital wallet operators, and B2B payment startups whose transaction volumes, multi-currency requirements, or payout complexity have outgrown what off-the-shelf payment tools can handle without significant compromise.
Payment gateway integrations with Stripe, Adyen, Braintree, and direct acquirers, with multi-provider routing included
Digital wallet platforms with ledger management, balance controls, payout automation, and real-time settlement visibility
Multi-currency transaction management with FX handling, cross-border routing, and automated reconciliation
PCI DSS compliant architecture designed in from discovery, not retrofitted before your compliance review
Recognition
Reconciling transactions manually across multiple PSPs and currencies because nothing connects your payment gateway, ledger, and payout system?
Finance team spending days each settlement cycle chasing discrepancies that should be flagged and closed in minutes?
Platform stuck on a payment provider that covers 80% of your flow but creates workarounds for the 20% that defines your product?
The short answer
RaftLabs builds custom payment software for payment service providers, embedded finance platforms, digital wallet operators, and B2B payment startups. Our payment software development work covers payment gateway integrations, payout automation, multi-currency transaction management, reconciliation systems, and digital wallet platforms. Most projects deliver in 10 to 16 weeks at a fixed, agreed cost.
Payment software development is the process of building custom systems that handle transaction processing, payment routing, settlement, reconciliation, and disbursement for businesses that move money as a core part of their product. It covers payment gateway integrations, digital wallet platforms, payout automation engines, multi-currency ledgers, and the compliance infrastructure (PCI DSS, AML, GDPR) that financial transaction software requires.
01 Diagnosis
Manual reconciliation eating days every settlement cycle
When your payment gateway, your ledger, and your payout system do not share a common data model, reconciliation becomes a spreadsheet exercise. A transaction authorized on one date, settled by the PSP on a second date, and posted to the ledger on a third date creates open items that your finance team hunts manually.At low transaction volumes, the process is annoying. At growth volume, it breaks. According to research by Optimus Tech, 84% of payment firms still rely on manual tasks and spreadsheets for reconciliation, and 86% report lacking the data transparency to do it reliably. The days your team spends matching records are days they are not closing the books, catching fraud, or managing float.An automated reconciliation system normalises records from every PSP into a single data model, matches payment events to ledger entries in real time, and surfaces discrepancies with context: timing difference, failed transaction, or FX variance. Your team works a short daily queue rather than a backlog.
Payment gateway locked to one provider with no fallback routing
A single payment gateway works until it does not. A provider outage, a card scheme rule change, a fee increase, or a new market requiring a local acquirer all expose the cost of a single-provider payment stack. When that one provider is also your only route for a particular currency or card scheme, the outage is not just an inconvenience. It is lost revenue.Multi-provider payment orchestration with smart routing logic selects the best acquirer per transaction: lowest cost for domestic cards, local acquirer for cross-border transactions requiring local settlement, backup route for provider downtime. The routing layer sits between your product and the acquirers, so adding or switching providers is a configuration change, not a re-engineering project.The result is higher authorization rates, lower transaction costs, and continuity when a single provider has a problem.
Payout automation absent in a product that disburses to hundreds of payees
Marketplaces, gig platforms, insurance platforms, and B2B SaaS businesses that collect from customers and pay out to vendors, workers, or merchants share a common bottleneck: disbursement handled by a finance team running manual bank transfers or a basic API call that has no retry logic, no settlement status tracking, and no reconciliation back to the originating transaction.When payout volume grows, the manual process does not scale and the error rate rises. A missed payout or a duplicate disbursement to a payee carries real financial and reputational cost.A payout automation engine handles payee onboarding and KYC, multi-rail disbursement (bank transfer, card push, e-wallet), retry logic for failed payouts, settlement status tracking, and reconciliation of each disbursement back to the originating transaction. Your finance team monitors exceptions, not individual transactions.
Multi-currency flows creating FX exposure with no visibility until month-end
A payment platform processing transactions in multiple currencies faces an FX problem: the rate at authorization differs from the rate at settlement, and settlement timing varies by provider and market. Without a real-time multi-currency ledger that holds balances per currency and marks FX gains and losses as they occur, the exposure is invisible until the accountants close the month.For payment service providers operating across markets, that exposure compounds across every currency pair, every provider, and every settlement cycle. The result is a treasury position that cannot be reported accurately intra-month.A multi-currency ledger tracks every balance in its settlement currency, records FX conversions at the point they occur, and gives your treasury team a live view of currency exposure, held balances, and pending settlements. The books close faster because the numbers are right in real time.
02 What we ship
We integrate with Stripe, Adyen, Braintree, Checkout.com, Worldpay, and direct acquiring networks, with routing logic that selects the best acquirer per transaction based on cost, geography, card scheme, or success rate. Multi-provider failover means a provider outage reroutes automatically rather than stopping your checkout.
PCI DSS compliant card data handling uses tokenisation and hosted payment fields to minimise scope. Fraud detection rules, velocity controls, and 3DS2 strong customer authentication sit inside the same layer. Authorization rate optimisation, including retry logic and network tokens, reduces declines without adding friction for the customer.
Built for payment service providers building a proprietary gateway, SaaS platforms embedding payment acceptance, and businesses replacing a single-provider stack that has become a constraint on growth or cost.
A digital wallet platform needs more than a stored value balance. It needs a double-entry ledger that records every credit and debit accurately, top-up rails (card, bank transfer, open banking), spend controls, real-time balance visibility, and transaction history that users and your compliance team can both rely on.
We build consumer and B2B wallet platforms with multi-currency balance management, in-wallet transfers between users, payment card issuance integration via providers such as Marqeta or Stripe Issuing, and merchant payment acceptance. Biometric authentication and device binding keep the wallet secure without adding steps that reduce conversion.
Built for digital wallet startups, neobanks adding a wallet product, B2B platforms offering stored value to their merchants, and marketplace operators managing buyer funds before disbursement.
A payout automation engine handles the full disbursement lifecycle: payee onboarding with identity verification, bank account validation, multi-rail disbursement selection (SEPA, ACH, Faster Payments, card push, PayPal, and wallet transfers), retry logic for failed payouts, and settlement tracking that connects each disbursement back to the originating transaction.
Payee self-service dashboards let recipients manage bank details and view payout history without your ops team handling support tickets. Configurable payout schedules, hold periods, and reserve calculations give you the cash flow controls a marketplace or lending product requires. Every disbursement generates a full audit trail.
Built for marketplace platforms, gig economy businesses, insurance companies making claims payouts, and B2B SaaS products that disburse to vendors or affiliates at scale.
Reconciliation automation starts with a normalisation layer that maps transaction records from every PSP, bank, and payment method into a single data model with consistent field names, timestamps, and amount representations. Matching rules link gateway events to ledger entries, applying tolerance rules for FX variance and timing differences.
Unmatched transactions surface in a daily exceptions queue with context: whether the gap is a timing difference, a fee discrepancy, a genuine missing payment, or an FX variance outside tolerance. Settlement reports per provider, per currency, and per product line are generated automatically so your finance team closes the month without building the reports themselves.
Built for payment service providers reconciling across multiple acquirers, marketplaces matching inflows to outflows, and finance teams replacing a spreadsheet-based reconciliation process that fails at volume.
A multi-currency payment platform holds balances per currency, converts at defined rates with configurable margin, and routes transactions to the acquirer or bank with the best settlement terms for that currency and market. FX gains and losses are recorded as they occur, not discovered at month-end.
Cross-border routing logic selects local acquiring where available, improving authorization rates and reducing scheme fees, and falls back to international acquiring with transparent FX pricing when local is not available. Regulatory requirements per market, including local payment methods, reporting obligations, and data residency rules, are designed into the architecture per region rather than patched on after launch.
Built for payment platforms expanding into new markets, remittance businesses replacing manual FX management, and B2B payment startups whose enterprise customers settle in multiple currencies.
Embedding financial functionality into a non-financial platform (payment acceptance, stored value, lending, or insurance) requires a compliance layer, a financial data model, and a user experience that does not ask the end user to leave the core product. The Adyen and BCG 2024 report estimated a $185 billion market opportunity for SaaS platforms in embedded finance, with less than 20% captured to date.
We build the embedded finance layer on top of your existing platform: the payment rails via Stripe Connect, Adyen for Platforms, or a direct PSP integration; the ledger that holds funds on behalf of your sub-users; the KYC and AML flow that satisfies your compliance obligations; and the payout disbursement that moves funds to the right party at the right time. The product surface your users see is your product, not a payment provider's iframe.
Built for SaaS platforms adding payment acceptance or stored value to their core product, B2B marketplace operators embedding merchant payouts, and vertical software businesses adding financial services as a revenue stream.
03 How we work
Companies we've built for
04 Track record
06 Client voices
Three-year average engagement. Founders and operators describing the work in their own words. No marketing varnish.
USARaftLabs helped us develop a mobile POS app that enabled cashless payments without extra steps. Their clear communication and collaborative approach ensured the project ran smoothly from start to finish.
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07 Why us
The industry changes. The broken process usually looks the same. Across 14+ industries and 100+ products, we recognise your problem fast, and we frame the fix around your margin and your operations.
We measure success the way you do: hours saved, revenue earned, margin recovered. We stay through launch and growth, so the result is ours to own.
Vodafone, T-Mobile, Cisco, Energia, Aldi, Nike. Six years, 100+ products in production, 4.9 on Clutch. Serious businesses keep coming back because we stay accountable long after launch.
08 Questions
Yes. We build payment processing layers that connect to Stripe, Adyen, Braintree, and direct acquiring networks, with smart routing logic that selects the best acquirer per transaction based on currency, card scheme, or cost. Multi-currency FX handling, settlement batching, and idempotent transaction processing are included. The architecture is PCI DSS compliant from the start.
Yes. Automated reconciliation that normalises transaction records from multiple providers into a single data model, matches payment events to ledger entries in real time, and flags discrepancies before end-of-day close is a specific capability we build into payment platforms. Research by Optimus Tech found that 84% of payment firms still rely on manual tasks for reconciliation. The fix is a unified data pipeline, not more headcount.
A focused build such as a payment gateway integration with reconciliation automation typically delivers in 10 to 14 weeks and costs $25,000 to $60,000. A full digital wallet platform with payout automation, ledger management, and multi-currency support runs $60,000 to $150,000 depending on scope and integration count. Fixed cost is agreed before development starts.
Yes. Embedding payment acceptance, wallet functionality, or payout disbursement into a platform that was not built as a financial product is a defined project type. We scope what needs to be built custom versus what sits on an existing provider via API: the ledger, the payout flow, the merchant onboarding. Most embedded finance additions deliver in 8 to 14 weeks.
PCI DSS compliance is designed into the architecture during discovery, not added after go-live. That means tokenisation of card data, encryption at rest and in transit, access controls scoped to role, an audit trail on every financial record, and scope reduction using hosted payment fields or a certified payment provider so your systems handle as little raw card data as possible. We facilitate penetration testing before go-live.
Tell us what you are building and we will scope it out together.