Fintech Software Development.

Financial technology demands precision.

Whether you're building a payments platform, a lending system, a wealth management app, or a banking integration — your software needs to be fast, secure, and fully compliant. At Arch, we build custom fintech solutions that handle real-world financial operations at scale.

Our UK-based team brings 20+ years of experience across regulated industries including healthcare, finance, and insurance. We understand the compliance frameworks, data security standards, and integration challenges that define financial software development.

From customer-facing apps to internal trading platforms and API-driven middleware, every solution is custom-built around your specific requirements and regulatory environment.

In fintech, trust is everything. Your software handles money, sensitive data, and regulatory obligations — there's no room for shortcuts. Our clients choose us because we build with security and compliance baked in from day one, not added as an afterthought.

We don't disappear after launch. We're your long-term partner for security updates, performance monitoring, and new feature development. Our Discovery-first approach to FinTech app development means we map your workflows, integrations, and compliance requirements before development begins. With offices in London, Edinburgh, and Gateshead, we bring UK quality standards and a 4.9/5 Clutch rating to every engagement.

We build with modern, scalable technologies — React for customer-facing dashboards, PHP and Laravel for secure backend systems, and Flutter for cross-platform mobile apps. We integrate with payment processors, banking APIs, KYC/AML providers, and core banking systems. Every solution is designed for performance under load, data integrity, and the strict security requirements of financial services.

Whether you're streamlining operations, enhancing the user experience, or unlocking deeper value from data, we help you deploy AI with purpose. No gimmicks—just powerful, compliant solutions that deliver measurable impact.

Common AI use cases in finance websites:

• Fraud detection and risk scoring through machine learning
• Personalised dashboards based on user behaviour and history
• Predictive analytics for credit, investment, and planning tools
• Natural language processing for chatbots and digital assistants
• Workflow automation to reduce admin and speed up approvals

Our approach to AI is always human-centred. We design features that add value without complexity—so your platform stays fast, clear, and fully compliant.

What types of fintech software do you build?
We build payment platforms, lending and credit systems, wealth management dashboards, banking integrations, mobile wallets, and internal financial tools. Whether you're a startup launching a new product or an established firm modernising legacy systems, we tailor every solution to your specific needs.

How long does fintech software development take?
Most projects take 3-6 months depending on complexity, integrations, and compliance requirements. Simpler MVPs or mobile apps may take 8-16 weeks. We provide a detailed timeline after our Discovery phase, once we understand your exact requirements and regulatory obligations.

How do you handle security and compliance?
Security is fundamental to every project. We follow industry best practices for data encryption, access control, secure authentication, and audit logging. We understand regulatory requirements in financial services — including PCI DSS, FCA guidelines, and open banking standards — and design systems that support your compliance obligations.

Can you integrate with banking APIs and payment providers?
Yes. We regularly integrate with payment processors (Stripe, Adyen, Worldpay), banking APIs, KYC/AML providers, and core banking systems. Whether you need open banking connectivity, card processing, or real-time payment rails, we'll build the integrations your platform requires.