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UK's trusted fintech app development partner

Build Secure Fintech Apps & Banking Software That Scale With Confidence

From digital banking platforms and payment solutions to lending, wealth, and RegTech products — we build custom fintech apps that help UK financial businesses move fast without compromising on security or compliance.

Digital Banking Payments Compliance & Security

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50+Experts

50+Global Brands

Since 2019Delivering excellence

what we build

Fintech Solutions We Build

Your fintech business has unique products, compliance obligations, users, and risk profiles. Instead of forcing your business into an off-the-shelf platform, we build custom fintech software around the way you operate.

Digital Banking Platforms

Account opening & onboarding
Multi-currency accounts
Cards & account management
Real-time transaction feeds
Admin & ops dashboards

Payment & Wallet Solutions

Digital wallets & money movement
Card & payment gateway integration
P2P & cross-border payments
Recurring billing & payouts
Transaction monitoring

Lending & Credit Platforms

Loan origination workflows
Credit scoring & risk models
Underwriting & approvals
Repayment & servicing tools
Collections dashboards

Wealth & Investment Apps

Portfolio & net worth tracking
Goal-based investing tools
Market data & insights
Robo-advisory workflows
Reporting & statements

Insurtech Solutions

Policy quoting & issuance
Claims management workflows
Underwriting automation
Customer self-service portals
Risk & fraud analytics

RegTech & Compliance Tools

KYC & identity verification
AML screening & monitoring
Audit trails & reporting
Regulatory reporting automation
Risk & case management

Open Banking Integrations

Account data aggregation
Payment initiation (PIS)
Consent & permissions management
Bank API & ledger connections
Financial data enrichment

Have a unique fintech idea?

We build custom financial platforms tailored to your business model and compliance requirements.

Let's Talk

Silverback mobile fintech platform dashboard and app

SilverbackFintech platform

Featured Case Study Our Work

Silverback

A mobile-first fintech platform helping users manage money movement, net worth, and investment goals with security and simplicity.

Secure money movement & eKYC
Net worth calculator & forecasting
AI-driven budgeting insights
Quiltt data aggregation & Netevia banking API
Admin & support ticket management
Mobile app for iOS & Android

View Case Study

More Than a Banking App

Modern fintech software connects your transaction data, compliance workflows, customers, staff, and business intelligence in one secure digital ecosystem.

Transaction Data & Ledgers

Centralise accounts, transactions, and ledger records in one structured system so your team always works from accurate, reconciled financial data.

Structured transaction records
Double-entry ledger design

Security & Fraud Prevention

Build fraud-resistant, financial-grade systems powered by encryption, anomaly detection, and secure authentication — protecting every transaction and account.

Real-time fraud monitoring
Multi-factor authentication

Compliance & KYC/AML

Reduce regulatory risk with built-in identity verification, sanctions screening, and audit-ready compliance workflows tailored to financial services.

Automated KYC/AML checks
Audit trails & reporting

Real-Time Payments

Move money instantly with resilient payment rails, retries, and reconciliation built to handle real-world transaction volume without downtime.

Instant payment processing
Automated reconciliation

Analytics & Reporting

Turn transaction, customer, and risk activity into actionable insights with real-time dashboards and custom reports that support confident decisions.

Real-time performance dashboards
Custom, exportable reports

Multi-Role Access

Give customers, staff, and admins tailored dashboards and permissions, so everyone sees the tools and data relevant to their role.

Role-based permissions
Custom dashboards per role

Our Fintech App Development Process

Discovery & Compliance Mapping

We understand your business, users, and regulatory obligations to define the right product roadmap.

UX/UI Design

We design intuitive experiences that simplify complex financial workflows.

Development

We build scalable, secure, and high-performance fintech platforms.

Integrations & Data

We connect banking APIs, payment rails, KYC providers, and more.

Security Testing & Launch

We test across devices, workflows, performance, and financial-grade security.

Scale & Support

We continuously improve, add features, and support your growth.

Why Choose Expertinasia for Fintech App Development?

Financial Product Experience

We understand the technology behind digital banking, payments, lending, wealth management, insurtech, and RegTech products.

Security-First Engineering

We design with encryption, fraud prevention, and financial-grade security controls built in from the start, not bolted on afterwards.

Full-Stack Development Team

Work with product strategists, UI/UX designers, frontend developers, backend engineers, mobile developers, QA engineers, and cloud specialists.

Scalable Architecture

We design fintech platforms to handle growing users, transaction volume, integrations, and future product requirements.

Compliance-Aware Development

We build with KYC/AML, audit trails, and regulatory reporting in mind so your product is ready for scrutiny from day one.

Flexible Engagement Models

Start with an MVP, modernise an existing platform, add new features, or work with a dedicated product engineering team.

Technology Stack for Fintech App Development

React.js

Next.js

Node.js

Python

PostgreSQL

AWS

Stripe

KYC/AML

Open Banking

Who We Build Fintech Software For

Banks Fintech Startups Payment Providers Lending Companies Insurtech Firms Wealth Managers Neobanks Financial Institutions

Frequently Asked Questions

Fintech app development is the process of designing and building secure digital platforms for financial services businesses. These can include digital banking apps, payment and wallet solutions, lending and credit platforms, wealth and investment apps, insurtech products, RegTech and compliance tools, and open banking integrations.

We design fintech products with compliance in mind from day one, including data protection, audit trails, KYC/AML workflows, and architecture that supports the reporting and controls UK-regulated financial businesses need. We work alongside your compliance and legal teams to align the build with FCA expectations.

We apply security-first engineering practices including encryption in transit and at rest, secure authentication, role-based access control, tokenised payment handling, and regular security testing to help apps meet PCI-DSS and financial-grade security expectations.

The cost depends on the product scope, number of user roles, integrations, compliance requirements, technology stack, and complexity of the workflows. We recommend starting with a product discovery session to define the requirements and development roadmap.

A fintech MVP can take several weeks to a few months depending on its scope. Larger banking platforms, lending systems, and data-intensive wealth or RegTech products require a longer development cycle.

Yes. We integrate open banking APIs, card and payment processors, KYC and identity verification providers, ledger and core banking APIs, and other third-party financial services.

Yes. We can add identity verification, document checks, risk scoring, sanctions screening, and ongoing monitoring workflows into new or existing fintech products.

Yes. We offer ongoing support and scaling packages covering monitoring, performance tuning, new features, compliance updates, and infrastructure management as your fintech product grows.

Build Your Fintech App With Expertinasia

Have a fintech app idea, an existing platform, or a financial product that needs to scale securely? Let's discuss your requirements and identify the right product, technology, and compliance approach.

Book a Free Consultation

No obligation. Just a conversation.