top of page
bookkeeping software

Fintech Software Development Company for US Financial Products

Build Production-Ready Financial Products with the #1 Fintech Development Partner

Need a fintech software development company that understands both code and compliance? FintegrationFS delivers custom financial technology solutions for banks, fintechs, and financial institutions across the United States.

 

With 100+ production-ready fintech products serving 100M+ users, we're the development partner that turns your financial innovation into market reality.

image.png
plaid-logo.png
image.png
image.png
Clients & Partners

Trusted by 50+ Clients & FinTechs

FintegrationFS has partnered with leading financial technology service providers, leveraging our extensive expertise as a fintech software development company to deliver over 100 production-ready fintech products.

FinTech APP and API Specialists
Plaid Integration Partner
Straddle ACH RTP Partner
protean-logo.webp
BON Debt Credit Management App Development
shadowfax-logo.webp
ACH FedNow RTP Transfer for USA with Plaid

Why US Financial Institutions Choose FintegrationFS

growth.png

Proven Production Track Record

We deliver comprehensive fintech software development services designed to empower financial brands with the tools they need to launch faster, stay compliant, and scale with confidence. Our team specializes in building custom fintech applications that streamline operations, enhance user experiences, and ensure seamless integrations with existing systems. Whether you’re looking to develop secure payment platforms, mobile banking apps, lending solutions, or data-driven financial tools, we provide end-to-end development services. 

target.png

15+ Years of Financial Technology Experience

Since 2009, we've been a leading fintech software development company, creating tailored financial software solutions for startups to publicly-traded financial institutions. 

We serve industries including Digital Banking & Neobanks, Payment Processing & Remittance, Lending & Credit Platforms, Wealth Management & Trading, and InsurTech & Embedded Finance. 

We specialize in providing fintech software development services that streamline operations and enhance user experiences, using the latest technologies and industry best practices. Whether you need a secure payment gateway, a robust lending platform, or a seamless digital banking experience, we deliver financial software development services that empower your business. 

Relevant Case studies

Image-empty-state.avif

NPS Platform Modernisation

Enhancing Engagement & Growth: 45% Increase in Active Users, 500K+ Downloads, and a 30% Rise in NPS Subscriptions

Image-empty-state (1).avif

Plaid Payment
Transfer

Leverage Plaid's secure integration for seamless bank account verification and fast, reliable ACH transactions for your business.

Image-empty-state (2).avif

Wealth Management Solution

Streamline portfolio management, optimize investments, and provide personalized client insights with a secure, scalable platform.

Custom Fintech Development Services

1. Digital Banking Software Development

Looking to modernize your banking system or launch a neobank? Our fintech software development company helps banks, fintech startups, and financial institutions build secure, scalable, and user-friendly digital finance platforms. From core banking solutions and digital onboarding to payments, lending, wallets, dashboards, and compliance-ready workflows, we create technology that fits your business model and grows with your users. With a strong focus on security, performance, and regulatory needs, our fintech team helps you move faster without compromising trust. 

2. Payment Processing Software Development

Our fintech software development services offer tailored solutions to enhance your business’s payment infrastructure, ensuring seamless transactions with top-notch security.

 

We provide custom payment gateway development and API integration, along with digital wallet apps for both consumers and merchants.

 

Our services also include building merchant processing platforms, developing cross-border payment systems for global transactions, and integrating cryptocurrency payment options to keep your business on the cutting edge of modern finance. 

We work with leading providers such as Stripe, Square, Adyen, and Authorize.net for payment rails, and integrate Plaid, Dwolla, and Finix for ACH processing. We also support Visa and Mastercard direct connections, and offer Apple Pay, Google Pay, and PayPal for alternative payments. Our solutions include compliance with PCI DSS Level 1, PSD2, KYC/AML, and OFAC screening for added security.

3. Lending Software Development

As a leading Fintech Software Development Company, we specialize in crafting robust and scalable financial software development services tailored to your business needs. Whether you're looking to launch a new lending platform or modernize your loan origination system, our expertise spans across personal loan systems, business financing solutions, BNPL services, and mortgage platforms. Our fintech application development services focus on seamless integrations, including credit decisioning engines, automated underwriting, and secure payment processing. With a deep understanding of financial services software development, we also support compliance with regulations like the Truth in Lending Act and Equal Credit Opportunity Act. Let us help you drive innovation and ensure the security and scalability of your fintech development services for long-term growth.

4. Wealth Management & Investment Software Development

As a leading Fintech Software Development Company, we specialize in crafting robust and scalable financial software development services tailored to your business needs. Whether you're looking to launch a new lending platform or modernize your loan origination system, our expertise spans across personal loan systems, business financing solutions, BNPL services, and mortgage platforms. Our fintech application development services focus on seamless integrations, including credit decisioning engines, automated underwriting, and secure payment processing. With a deep understanding of financial services software development, we also support compliance with regulations like the Truth in Lending Act and Equal Credit Opportunity Act. Let us help you drive innovation and ensure the security and scalability of your fintech development services for long-term growth. 

5. InsurTech Software Development

Are you looking to modernize your financial services with a digital-first approach? Our fintech software development services are designed to help you build secure, scalable, and innovative solutions. From AI-powered risk assessments and automated transactions to seamless integrations with third-party data providers and payment systems, we create custom platforms tailored to your needs. Our fintech development team specializes in everything from mobile banking apps and digital wallets to embedded insurance APIs and compliance reporting systems. Let us help you navigate the complexities of modern finance while ensuring full regulatory compliance and high-end security. Ready to transform your business with fintech software development? Let’s get started today!

Financial Service Provider Integrations

Build innovative fintech mobile app development solutions beyond traditional banking. Our expertise spans the entire fintech ecosystem, enabling you to launch products that address specific financial needs.

Banking & Account Aggregation

image.png

Connect users' bank accounts from 12,000+ financial institutions. Plaid provides account authentication, balance checking, transaction history, identity verification, income verification, liabilities data, and investment holdings. We've delivered 30+ Plaid-powered apps and maintain official partner status.

Payment Processing

Logo (1).png

Comprehensive payment infrastructure. Stripe handles credit card processing, ACH transfers, instant payouts, recurring billing, marketplace facilitation, fraud prevention with Radar, and global payment methods. Our team has built 50+ Stripe integrations.

Identity Verification & KYC

idXm1x1nh3_logos.png

Customizable identity verification platform. Persona offers government ID verification, selfie verification with liveness detection, document verification (proof of address, income), database verification, and fraud detection. Modular approach fits any use case.

Fintech API Integration Expertise
 

We're Official Development Partners With:

Banking & Account Data​

As a leading fintech software development company, we specialize in building robust financial platforms tailored to your business needs. Our fintech development services empower companies to offer secure, real-time financial transactions, advanced account aggregation, and seamless bank connectivity. We’ve successfully integrated with top platforms like Plaid, Finicity, MX, and Yodlee, helping clients optimize their financial services. Whether you're looking for fintech application development or custom software solutions, our team ensures that your platform is built to scale with industry-leading security, compliance, and performance. ​

Payment Processing

At FintegrationFS, we specialize in providing comprehensive fintech software development services that power financial applications from payment gateways to merchant services. Whether you need seamless payment processing, ACH solutions, or global payment integrations, we’ve got you covered. As a trusted financial software development company, we design secure, scalable, and compliant systems tailored to the specific needs of your business. Let us help you streamline operations, enhance customer experiences, and scale with innovative fintech development services. ​

Identity & KYC

As a leading Fintech Software Development Company, we specialize in delivering high-performance financial software solutions tailored to meet the unique needs of modern finance. Our expertise in fintech software development services allows us to build secure and scalable systems for identity verification, fraud prevention, and financial software development services. Whether you need fintech application development services for KYC automation or financial services software development for seamless digital onboarding, we provide cutting-edge solutions that drive efficiency and trust. Let us help you transform your business with top-tier fintech development services and ensure your platform is future-proof. ​

Credit & Lending

As a leading fintech software development company, we specialize in creating custom solutions that enhance financial services and drive digital transformation. Our fintech development services cover everything from cash flow underwriting with Plaid to income verification using Finicity, ensuring fast, secure, and compliant financial operations. We leverage powerful technologies for document verification through Ocrolus and advanced credit decisioning with Experian, offering a comprehensive suite of tools designed for modern financial needs. ​

Investment & Trading

As a leading Fintech software development company, we offer comprehensive fintech software development services designed to cater to the evolving needs of the financial sector. Our team delivers custom-built financial software development solutions, from seamless fintech application development services to advanced integrations. With deep expertise in the finance industry, we provide scalable, secure, and reliable software development services, ensuring your fintech application meets compliance standards and exceeds market expectations. Whether you're seeking a robust platform for payments, data analytics, or digital banking, our fintech development services guarantee the innovation your business requires to thrive. ​

Global Team, Local Presence

Development Centers

Image by engin akyurt

India (Ahmedabad)

Image by Tim Mossholder

USA (Austin, Texas)

Image by Karthik B K

UAE (Planned Expansion)

Communication Excellence

Work seamlessly across time zones with:

slack.png

Daily standup meetings via Slack/Teams

presentation.png

Bi-weekly sprint reviews with demos

jira.png

Real-time project tracking (Jira, Linear)

manager.png

Dedicated account manager

customer-service.png

24/7 critical issue support

file.png

Comprehensive documentation

Technology Stack & Integrations

Frontend Technologies

  • React.js, React Native for cross-platform mobile apps

  • Next.js for server-side rendering and SEO

  • TypeScript for type-safe development

  • Tailwind CSS for responsive design

  • PWA capabilities for offline functionality

Backend Technologies

  • Node.js, Python, Java for microservices

  • GraphQL and REST API architecture

  • PostgreSQL, MongoDB for data persistence

  • Redis for caching and session management

  • Apache Kafka for event streaming

 

Cloud & Infrastructure

  • AWS, Azure, Google Cloud Platform

  • Kubernetes for container orchestration

  • Terraform for infrastructure as code

  • CloudFlare for CDN and DDoS protection

  • Datadog/New Relic for application monitoring

 

 

Financial Service Integrations

Account Aggregation: Plaid, Finicity, MX, Yodlee

  • Payment Processing: Stripe, Square, Dwolla, Adyen

  • Identity Verification: Onfido, Jumio, Persona, Alloy

  • Credit Data: Experian, Equifax, TransUnion

  • Accounting: QuickBooks, Xero, FreshBooks

  • Investment Data: Alpaca, Polygon.io, IEX Cloud

f7a9d257-86bb-4f0b-bc86-b0f36bceafea.png
Rectangle 6067.png

Contact Us

bottom of page