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Fintech Software Development Services
Building a fintech product on a generic software platform means discovering too late that compliance, audit trails, and financial-grade reliability weren't designed in. Payment rails, AML/KYC checks, open banking connections, and regulatory reporting are not features you bolt on after MVP.
We build fintech software with compliance and financial-grade reliability built into the architecture from day one. Payments, lending, open banking, wealth management, RegTech, and embedded finance, scoped to your specific product and your specific regulatory obligations.
Financial-grade reliability with audit trails and compliance controls built in from the start
PSD2, MiFID II, FCA, GDPR, AML/KYC compliance-aware architecture
Open banking, payment rails, and embedded finance integrations
100+ products shipped including fintech and financial services platforms
Recent outcomes
Payment platform · B2B SaaS
Built a multi-currency payment and settlement platform with PCI DSS-compliant architecture. Launched in 14 weeks.
3x revenueAML/KYC automation · Lending
Automated identity verification, sanctions screening, and SAR workflows for a UK consumer credit product.
0% manual errorsOpen banking · FinTech startup
Delivered a PSD2-compliant account aggregation and payment initiation platform for a UK market launch.
12 weeks to launch4.9 / 5 on ClutchSee our work
The problem
Sound familiar?
Building a fintech product on a generic software platform and discovering that compliance, audit trails, and financial-grade reliability weren't designed in?
Six months from launch and your fintech platform still can't pass a bank's vendor security review?
The short answer
RaftLabs builds fintech software for payments, lending, open banking, wealth management, RegTech, and embedded finance for clients in the US, UK, and Australia. Compliance-aware architecture covers PSD2, MiFID II, FCA, GDPR, and AML/KYC. Fixed-price builds typically launch in 12-16 weeks.
Updated July 2026
Trusted by
FinTech software, by the numbers
- revenue growth for a B2B payment platform client
- 3x
- average time from kick-off to first production release
- 12 weeks
- rated by clients on Clutch
- 4.9/5
- manual errors after AML/KYC automation for a UK lending product
- 0
Financial-grade software built from the compliance layer up
Generic software platforms break when you try to build fintech products on them. The architecture decisions that work for a SaaS product do not work for a regulated financial service. Audit trails, idempotent transaction handling, consent management, and regulator-ready documentation need to be in the foundation, not the finishing coat.
We build fintech software with the compliance requirements of your specific product and your specific market designed in before the first line of code. Whether you're building a PSD2-compliant payment platform, a FCA-regulated lending product, or an embedded finance layer on top of Banking-as-a-Service infrastructure, the architecture follows from the regulation.
For lending and credit software in depth, including loan origination, credit decisioning, and mortgage-specific workflows, see our dedicated lending page.
Capabilities
What we build
Payment platforms
Payment processing integration with Stripe, Braintree, and direct acquirer connections. Recurring billing with subscription management, trial handling, and proration. Multi-currency support with FX rate handling and settlement reporting per currency. PCI DSS compliant architecture with card data handled by the payment processor, not your servers. Refund workflows, dispute handling, and chargeback evidence preparation. Settlement reporting that reconciles what the payment processor collected against what your ledger shows, catching discrepancies before they compound.
Lending and credit software
Loan origination workflows from application to offer, with automated credit decisioning against your risk rules. Open banking integration via Plaid and TrueLayer for bank statement analysis and income verification. Credit bureau connections for bureau data at the decisioning point. Underwriter queues for applications that fall outside auto-decisioning thresholds. For deeper coverage of loan origination, mortgage workflows, and servicing systems, see our lending software development service.
Open banking and API banking
PSD2-compliant account aggregation via AISP connections, pulling live balance and transaction data from connected accounts with explicit user consent and a defined consent period. Payment initiation via PISP connections for direct bank-to-bank payments without card rails. Financial data analytics built on live account data, cash flow categorisation, spending analysis, and affordability assessment. Integration with TrueLayer, Plaid, and Nordigen for UK and EU bank coverage. Consent management, token refresh handling, and graceful degradation when bank connections expire.
Wealth and investment platforms
Portfolio tracking across asset classes with performance calculation, benchmark comparison, and P&L reporting. Trade execution integration with broker APIs or prime broker connections. Investor portals for retail clients with account overview, transaction history, and document delivery. MiFID II suitability documentation workflows: questionnaire, risk profile calculation, suitability assessment record, and periodic suitability review. Reporting infrastructure for regulatory returns and investor statements.
RegTech and compliance
AML/KYC automation covering identity verification at onboarding, sanctions and PEP screening, transaction monitoring with configurable rules, and suspicious activity reporting (SAR) workflows. GDPR data subject request handling: automated response workflows for access, rectification, and erasure requests with complete audit trails. Audit logs for every financial decision, every data access event, and every compliance action, stored in an append-only format that regulators and auditors can inspect. Compliance dashboards for your compliance team showing open cases, flagged transactions, and regulatory report status.
Embedded finance
BNPL (Buy Now Pay Later) integration on existing commerce or marketplace platforms, with credit decisioning at checkout and repayment scheduling. Embedded payments via Banking-as-a-Service providers, embedding payment account functionality into non-financial products. Card issuing via BaaS providers including Marqeta, Modulr, and Railsr, with spend controls, virtual card issuance, and transaction webhooks. White-label financial products where your brand is on the customer-facing product and the licensed infrastructure sits behind it.
Services
Related fintech capabilities
- 01
FinTech SaaS development
Multi-tenant financial SaaS with subscription billing, tenant isolation, and self-service onboarding, architected for cost-per-customer and bank vendor security reviews.
- 02
FinTech AI development
AI-first fintech products from idea to production: credit scoring models, fraud detection, transaction categorisation, and document processing wired into your compliance workflows.
Why us
Why teams choose RaftLabs
Senior engineers build what they scope
The engineers who assess your problem also build the solution. No bait-and-switch, no offshore handoff after the contract is signed. The team you meet in week 1 ships in week 12.
Fixed price before development starts
We scope the work, calculate the cost, and lock it in writing before any development starts. A scope change is a change request: priced, agreed, or dropped. It never absorbs into the project and appears on the final invoice.
9 years and 100+ products shipped
Clients include Vodafone, T-Mobile, Aldi, Nike, Cisco, and Lockheed Martin. Track record across fintech, SaaS, mobile, automation, and enterprise platforms across payments, lending, open banking, and embedded finance.
Compliance built in from the start
PSD2, MiFID II, FCA, GDPR, AML/KYC, SOC 2 - compliance requirements are scoped in week 1, not retrofitted before launch. We have shipped HIPAA-compliant systems for US healthcare clients and GDPR-compliant fintech products for UK and EU markets.
100+ products shipped. We know where fintech architectures break.
Fixed cost. Compliance-aware from day one. Full source code ownership.
Process
How we build fintech products
- 01
Regulatory and compliance scoping
We map your product's regulatory obligations before designing anything. The compliance requirements are specific to your product type, your target market, and your licensing position. A PSD2 payment initiation service has different obligations than a FCA-regulated consumer credit product. We document what applies, what you're already compliant with, and what the platform needs to support.
Regulatory obligation mapping: product type, geography, licensing position
Compliance controls required at the platform layer vs your compliance team's operational processes
Third-party compliance service selection: identity verification, AML screening, credit bureaus
Fixed-cost scope for the first phase with milestone delivery dates
- 02
Architecture design
Financial software architecture decisions are harder to change than most. We design the data model, API structure, transaction handling approach, and audit trail architecture before writing code. The architecture review is where we catch the decisions that create compliance debt or reliability problems at scale.
Data model and transaction handling design: idempotency, double-entry accounting where required
Audit trail architecture: append-only event logs, audit event schema, retention policy
Third-party integration architecture: payment processors, AML screening, open banking APIs
Security architecture: authentication, authorisation, data encryption, PCI DSS scope reduction
- 03
Compliant platform build
We build in 2-week sprints with deployed builds at the end of each. Compliance controls are built into each sprint, not added in a final compliance sprint before launch. Your compliance team can review what's been built at each sprint rather than seeing it all at once.
2-week sprints with working product demos at the end of each
Compliance controls built as first-class features alongside functional requirements
Automated tests for business rules, compliance checks, and regulatory workflows
Third-party integration testing against sandbox environments throughout build
- 04
Compliance testing and audit preparation
Before launch, we run a compliance testing phase that validates the controls work as designed, not just that the code passes unit tests. Transaction monitoring rules, AML screening outcomes, consent management flows, and data subject request handling are tested against realistic scenarios.
Compliance control validation: AML screening, KYC workflows, transaction monitoring rules
Consent management and data subject request handling tested end-to-end
Audit trail integrity verification: append-only storage, tamper detection
Penetration test support and security review documentation for FCA or bank vendor reviews
- 05
Launch and regulatory documentation
We deploy to production and prepare the documentation your compliance team and any regulator will ask for. Data flow diagrams, API documentation, compliance control descriptions, and audit trail formats in the format that FCA applications, bank vendor onboarding, and SOC 2 audits expect.
Production deployment with monitoring, alerting, and on-call response plan
Regulatory documentation: data flows, compliance controls, audit trail formats
Incident response procedures for payment failures, data incidents, and AML escalations
Post-launch support and compliance review cadence
Fintech architecture built for the regulator, not just the product.
Fixed cost. Compliance-aware from day one. Talk to us about your product and regulatory obligations.
What clients say
What our clients say
Three-year average engagement. Founders and operators describing the work in their own words. No marketing varnish.
Dr.J. Ayo Akinyele
USAPresident, Co-Founder
I was pleased with RaftLabs team's quality, consistency and execution.
01 / 03
The stack we build FinTech software on
We are not tied to one framework. We pick the stack that fits your compliance obligations, transaction volumes, and handover needs, then document every choice so any competent engineering team can maintain it. The technologies we reach for most often when building financial software:
| Layer | Technologies we use | Where it fits |
|---|---|---|
| Frontend | React, Next.js, TypeScript, Tailwind CSS | Customer portals, compliance dashboards, and investor-facing UIs |
| Backend | Node.js, Python, Java, Go | Transaction handling, decisioning engines, and financial-grade APIs |
| Databases | PostgreSQL, Redis | Double-entry ledgers, append-only audit logs, and low-latency caching |
| Payments and data | Stripe, Plaid, card networks, ledger services | Card processing, open banking connections, settlement, and reconciliation |
| Cloud and compliance | AWS, PCI-DSS, SOC 2 | Production-grade hosting with compliance scope designed in from sprint one |
The rule holds at every layer: no proprietary frameworks that lock you in, and no stack we cannot hand to your team on day one. For open banking and payment initiation we connect to certified providers such as TrueLayer, Plaid, and Nordigen rather than screen-scraping, and card data is handled by the payment processor rather than your servers to keep PCI-DSS scope small.
What FinTech software development costs
We price by project, not by the hour. After a regulatory and compliance scoping session you get a fixed quote with a defined scope, timeline, and price, so you know the number before development starts.
| Project type | Typical timeline | Cost range |
|---|---|---|
| Focused fintech product, one core workflow with compliance controls built in | 12-16 weeks | $40,000-$80,000 |
| Full fintech platform, multiple product lines, regulatory reporting, and integrations | 16-24 weeks | $80,000-$150,000 |
What pushes cost toward the higher end: deep regulatory compliance such as FCA-authorised product workflows, MiFID II reporting infrastructure, or PSD2-certified API connections; multiple regulated third-party integrations; and native mobile apps alongside the web platform. What keeps it down: a narrow first scope, a single core workflow, and managed compliance services such as AML/KYC automation rather than building screening and monitoring from scratch. We scope every project before pricing it.
Related services
- 01
Financial Software Development
Accounting systems, financial data platforms, and ERP for financial services businesses.
- 02
Payment Integration
Stripe, Braintree, Adyen, and custom payment gateway integration.
- 03
Lending Software Development
Loan origination, credit decisioning, and servicing platforms in depth.
- 04
AI for Fintech
AI models for credit scoring, fraud detection, and financial data analysis.
- 05
Compliance Automation
AML/KYC workflows, regulatory reporting, and audit trail automation.
- 06
API Development
Open banking API connections, payment gateway integrations, and financial data APIs.
- 07
SaaS Development
Multi-tenant SaaS platform development for fintech products sold to businesses.
- 08
Fintech Mobile App Development
Banking, payments, and lending apps built for PCI-DSS compliance.
- 09
Fintech Loyalty Programs
Cashback, partner networks, and gamified rewards for neobanks and payment platforms.
- 10
Fintech Industry Hub
Custom financial software for lending, payments, and wealth management.
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Frequently asked questions
We build across the full range of fintech products: payment platforms covering card processing, recurring billing, multi-currency, and settlement reporting; lending and credit software covering loan origination, credit decisioning, and open banking integration; open banking platforms with PSD2-compliant account aggregation and payment initiation; wealth and investment platforms with portfolio tracking, trade execution integration, and MiFID II suitability documentation; RegTech and compliance tools covering AML/KYC automation, transaction monitoring, and suspicious activity reporting; and embedded finance products including BNPL, embedded payments, and card issuing via Banking-as-a-Service providers.
PSD2 compliance requires Strong Customer Authentication (SCA) for payment initiation, open banking API connections via certified AISPs and PISPs, and specific consent management flows. We build SCA into the authentication layer and connect to PSD2-compliant data providers (TrueLayer, Plaid Europe) rather than screen-scraping. MiFID II compliance for investment platforms requires documented suitability assessments for each client and investment recommendation, best execution policies, and transaction reporting. We build the suitability questionnaire workflows, the decision documentation, and the reporting infrastructure as part of the investment platform, not as afterthoughts.
Open banking integration involves connecting to account data (via AISPs) and payment initiation (via PISPs) through regulated API connections. We integrate with TrueLayer, Plaid, and Nordigen to connect to bank accounts across the UK and EU. Account aggregation pulls live balance and transaction data with explicit user consent and a defined consent period. Payment initiation triggers a payment directly from the user's bank account without card rails. The integration handles consent management, token refresh, and the edge cases that appear when bank connections expire or accounts are closed.
AML/KYC automation covers identity verification at onboarding (document verification + liveness check via Onfido, Jumio, or Stripe Identity), sanctions and PEP screening on onboarding and on an ongoing schedule, transaction monitoring rules that flag patterns matching money laundering typologies, suspicious activity reporting (SAR) workflows that route flagged cases to your compliance team, and audit trails for every compliance decision. The rules are configurable because your risk appetite and your product's transaction patterns are specific to you. We don't use one-size-fits-all thresholds.
A focused fintech product, one core workflow with compliance controls built in, typically runs $40,000--$80,000. Full fintech platforms covering multiple product lines, complex regulatory reporting, and third-party integrations run $80,000--$150,000. Platforms requiring deep regulatory compliance (FCA-authorised product workflows, MiFID II reporting infrastructure, or PSD2-certified API connections) sit toward the higher end. Pricing is fixed cost based on scoped features, you know the number before development starts.
A focused fintech product with one core workflow, compliance controls, and payment or open banking integration typically launches in 12-16 weeks. A more complete platform covering multiple product lines, regulatory reporting, and native mobile apps takes 16-24 weeks. Timeline depends on integration complexity, the number of regulated third-party connections required, and how clearly the compliance requirements are defined at kickoff.
Fintech software is typically built by non-bank companies that are either licensed or operating under regulatory exemptions to deliver financial services to consumers or businesses via digital channels. It's built to be fast to deploy, API-first, and product-driven rather than built around a core banking ledger. Standard banking software (core banking systems) is designed to run a bank's ledger and back-office operations, typically large, expensive legacy systems. Fintech products often wrap or sit alongside core banking systems via open banking APIs rather than replacing them.
Work with us
Tell us what you need. We'll tell you what it would take.
We scope Fintech Software Development Services in 30 minutes. You walk away with a clear cost, timeline, and approach. No commitment required.
- Scope and cost agreed before work starts. No surprises. No obligation.
- Working prototype within 3 weeks of kickoff.
- Pay by milestone. You see progress before each invoice.
- 60-day post-launch warranty. Bug fixes, UI tweaks, and deployment support. No retainer.
- All conversations are NDA-protected.