What does a fintech software development company do?

A fintech software development company designs, builds and maintains financial software such as payment platforms, digital wallets, neobank and banking apps, lending and loan management systems, wealth and trading platforms, insurance software and accounting tools. Beyond the user-facing apps, it builds ledgers, payment orchestration, KYC and AML workflows, fraud detection and reconciliation, and it integrates banking partners, card issuers and payment processors. Webshark combines secure back-end engineering, mobile apps and cloud DevOps under ISO 27001 certified processes for exactly this kind of work.

How much does fintech software development cost?

A fintech MVP usually costs $40,000 to $90,000. Full platforms with multiple integrations, compliance features and web and mobile apps typically range from $100,000 to $300,000 or more. The main cost drivers are the number of payment and banking integrations, KYC and AML requirements, ledger complexity, card issuing, multi-currency support, security testing and audit preparation. Third-party fees for KYC checks, payment processing and banking-as-a-service partners are separate. After discovery we share an itemized fintech software development estimate by phase.

How long does fintech app development take?

A fintech app MVP usually takes 12 to 16 weeks from discovery to launch. More complex platforms such as lending, banking or trading systems take 6 to 12 months, released in phases. Timelines depend not only on development but also on partner onboarding, sponsor bank reviews, KYC provider setup, app store review for financial apps and security testing. We plan these external dependencies from the first week, building against sandboxes so code is ready as soon as production access is approved.

Is your fintech software PCI DSS and SOC 2 compliant?

We build PCI DSS-aware and SOC 2-ready software. We reduce card data scope by using tokenization and certified payment gateways so raw card numbers never touch your servers, and we implement encryption, access controls, logging and change management that auditors expect. We also provide architecture documentation and evidence for audits. Formal compliance and certification depend on your organization, policies and auditor, so no vendor can certify your company for you, but our ISO 27001 certified processes make the path much smoother.

Which integrations do you support?

We integrate payment gateways such as Stripe, Adyen and Braintree, open banking with Plaid, KYC and AML providers such as Onfido, Jumio, Alloy and ComplyAdvantage, card issuing platforms, ACH, RTP and wire rails, banking-as-a-service partners, credit bureaus, and accounting systems such as QuickBooks, Xero and NetSuite. Each integration includes webhooks, retries, idempotency and reconciliation so data stays accurate. If your partner has no standard API, we work from their documentation or file formats such as NACHA to build a reliable connection.

Why choose Webshark for fintech app development?

Webshark brings 7+ years of delivery and 580+ projects completed under ISO 27001 and CMMI Level 3 certified processes. For fintech app development we combine secure back-end engineering, mobile apps, cloud DevOps and QA in one team, so ledgers, integrations and user experience are designed together rather than stitched across vendors. We document decisions for auditors and banking partners, and our team overlaps with US business hours for planning, releases and incident response. We serve clients in 18+ countries.

Can you build a fintech MVP for investors?

Yes. We scope a lean MVP around your core financial flow, such as onboarding, account funding and one key transaction type, and typically launch in about 12 weeks. We use sandboxes and banking-as-a-service partners to move fast without cutting corners on security, KYC or ledger accuracy, because investors and partner banks will look closely at both. You also get documentation and a scalable architecture that supports your next funding round and roadmap. See our MVP development services page.

Can you add AI to fintech products?

Yes. We add AI to fintech products for fraud and anomaly detection, credit decision support using alternative data, document processing for bank statements, payslips and IDs, transaction categorization, and customer support assistants. Models run with human oversight, explainable outputs where lending rules require them, and full audit trails of every decision. We test for bias and accuracy on your own data before launch. Sensitive financial data stays in secure environments rather than public AI tools.

Which technologies do you use?

For fintech software development we use Java Spring Boot, Node.js, Python, Go and .NET for back-end services, PostgreSQL for ledgers that need strong consistency, Redis for caching and Kafka for event streaming. Front ends use React, Next.js and Angular, and mobile apps use Flutter, React Native, Swift and Kotlin. We deploy on AWS, Azure or Google Cloud with infrastructure as code, hardware security modules and managed key services. The stack is chosen for reliability, auditability and your team's ability to maintain it.

Who owns the source code and IP?

You do. All source code, designs, ledger logic, documentation and infrastructure scripts from your fintech software development project belong to you, and IP ownership is set out clearly in the contract. Code lives in repositories you control and cloud accounts are in your name, so financial and customer data never sits in a vendor-owned environment. We sign NDAs before discovery starts. Clear IP ownership matters to investors, partner banks and acquirers, and there is no lock-in if you build an in-house team later.

Can I hire a dedicated team instead of a fixed-price project?

Yes. Instead of a fixed-price project you can hire dedicated fintech engineers on monthly contracts, from one developer to a full team with a project manager and QA. This model suits fintech companies whose roadmap shifts with partner requirements, regulations and customer feedback, or who need to add integrations and features continuously after launch. Engineers work in your tools, follow your security policies and change management, and you can scale the team with notice. See our hire full-stack developers page.

Do you provide support after launch?

Yes. After launch our fintech support plans cover transaction monitoring, reconciliation checks, incident response, bug fixes, security patches, partner API and card network rule changes, regulatory updates and new features. Response times are agreed upfront by severity, with priority handling for anything that affects payments, balances or customer access. Our team overlaps with US business hours for releases and partner calls. You receive regular reports on uptime, incidents and transaction health, so you can show partners the platform is well run.

TRUSTED BY FINTECH STARTUPS AND FINANCIAL SERVICES BRANDS

Secure, compliant payment, lending, wallet and banking platforms, built for scale and audits

Fintech Software Development Company

Payment, lending, wallet, banking and wealth platforms on web and mobile.
PCI DSS-aware architecture with encryption, tokenisation and audit trails.
KYC, AML, open banking and payment gateway integrations.
ISO 27001 and CMMI Level 3 certified delivery with full code ownership.

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Fintech Software Development With Security Built In

Webshark is a fintech software development company that builds secure, scalable financial products for fintech startups, banks, lenders, payment companies and wealth managers. Our fintech software development services cover payment platforms, digital wallets, lending and loan management systems, neobank and banking apps, wealth and trading platforms and insurance software. As a fintech app development company we deliver web and mobile experiences customers trust, with security, compliance and integrations designed in from the first sprint: PCI DSS-aware card handling, KYC and AML checks, open banking APIs, fraud monitoring and complete audit trails. Every project runs under ISO 27001 certified processes. Planning a mobile banking or wallet app? See our mobile app development company in the USA page.

Years of Software Engineering Experience

580+

Projects Delivered Across Industries

18+

Countries Served, Including the USA

280+

Active Clients Trusting Our Engineering

Fintech Software Development Built Around Security and Compliance

Every fintech software development engagement follows ISO 27001 certified security and CMMI Level 3 delivery processes, with data handling aligned to GDPR, CCPA, HIPAA and the industry standards your auditors expect.

GDPR

CCPA

HIPAA

DPDP Act, 2023

PCI DSS

PSD2

EMV & 3DS

ISO/IEC 9001

ISO/IEC 27018

SOC 2 Type II

FISMA

NIST Cybersecurity Framework

ISO 13485

PIPEDA

ISO/IEC 27001

OWASP

W3C

Fintech Software Development Services We Offer

From an MVP for a new fintech idea to modernising a core financial system, our fintech software development team covers the full product lifecycle.

Fintech App Development Across Financial Services

We build products for every part of finance, connecting customers, money movement, risk and compliance in one secure platform.

Payment Software Development

Payment gateways, processing, payouts, invoicing and merchant dashboards.

Digital Wallets and Neobank Apps

Wallets, cards, P2P transfers and banking apps with real-time balances and notifications.

Lending Software

Loan origination, credit decisioning, servicing and collections platforms.

Wealth and Trading Platforms

Investment, robo-advisory and trading apps with portfolio analytics.

Insurtech Software

Policy, quoting, claims and customer portals for insurers and brokers.

Open Banking and APIs

Account aggregation, payment initiation and banking-as-a-service integrations.

Why Choose Our Fintech Software Development Company

Financial products have no room for shortcuts on security, accuracy or uptime. Our engineering practices reflect that.

Security and Compliance by Design

We design fintech software with tokenisation, encryption, strong authentication, least-privilege access and immutable audit logs from day one. Card data handling follows PCI DSS scope reduction practices, and data handling aligns with GDPR, GLBA and SOC 2 expectations. Our ISO 27001 certified processes give your compliance team documentation they can use in audits and partner due diligence.

Accuracy at Scale

Money movement needs exact, traceable transactions. We use double-entry ledgers, idempotent APIs, reconciliation jobs and event-driven architecture, so every transaction is recorded correctly even under heavy load or partial failures. Load testing and monitoring keep response times low as your user base grows.

How We Deliver Fintech Software Development Projects

A structured delivery approach balances speed to market with the security and compliance financial products require.

Discovery and Compliance Mapping

Every fintech software development project starts with two to four weeks of discovery and compliance mapping. We define your product, users, revenue model and regulatory scope, then map money flows, licensing needs, KYC and AML obligations, data residency and the requirements of your sponsor bank or payment partners. You receive a product plan, a compliance checklist and a risk register that guide architecture and roadmap decisions, so regulators and banking partners see a well-prepared product.

Secure Architecture

We design cloud-native architecture built for financial data: network isolation, secrets management, encryption with hardware-backed keys, strict separation of environments and least-privilege access. Core components such as a double-entry ledger, payment orchestration, limits and risk engines are modular, so each can scale and be audited independently. Idempotent APIs prevent duplicate transactions. The deliverable is an architecture document and threat model that supports PCI DSS and SOC 2 preparation from day one.

KYC, AML and Fraud Integrations

We integrate identity verification, sanctions and PEP screening, transaction monitoring and fraud scoring providers such as Onfido, Jumio, Alloy, Sardine or ComplyAdvantage. Configurable rules and machine learning flag suspicious activity, and compliance officers review alerts in a case management console with full histories, notes and audit trails. Risk-based onboarding keeps legitimate users moving quickly while higher-risk profiles get enhanced checks. This step usually runs alongside core development over several sprints.

Payments and Banking Integrations

We connect payment processors and gateways such as Stripe, Adyen and Braintree, card issuing platforms, ACH, RTP and wire rails, and open banking providers such as Plaid for account linking and balance checks. Webhooks, retries, idempotency keys and daily automated reconciliation keep balances accurate across your ledger, banking partners and processors. As a fintech software development company we treat every cent as critical, so mismatches raise alerts instead of hiding in reports.

User Experience That Builds Trust

Trust decides whether people move money through your product. Our designers create clear onboarding with progress indicators, transparent fees, instant transaction notifications, easy dispute and support flows and helpful error messages when payments fail. We follow WCAG accessibility guidelines and test with real users, including first-time users of financial apps. The result is a fintech app experience that feels simple and safe for beginners and fast and powerful for experienced customers.

Testing and Security Validation

Every release goes through functional, integration, performance and security testing. We run static analysis, dependency and container scanning, and support independent penetration tests, fixing findings before launch. Test data and partner sandboxes mirror real scenarios such as failed payments, chargebacks, partial refunds, KYC rejections and currency conversions. Load tests confirm the platform handles peak volumes. You receive test reports and security evidence ready for bank partner reviews and SOC 2 auditors.

Launch, Monitoring and Support

We manage production deployment with zero-downtime releases, then monitor transaction volumes, failure rates, latency and reconciliation status on live dashboards with alerting. Incident runbooks define who responds and how customers are informed. After launch, support plans cover security patches, regulatory and network rule updates, partner API changes and new features, under response times agreed upfront, with priority handling for anything that affects money movement.