Velvetech builds payment software that sets a new standard in operations with rock-solid security and complete transparency. We develop custom payment gateways, digital wallets, payment platforms, and other solutions that are PCI DSS compliant, feature advanced tech, and integrate with the processors and rails your business runs on.
We care about your funds’ integrity and payment security, and stand ready to help you implement reliable fraud protection tools:
Advanced transaction analytics
Behavioral analytics & scoring models
AI/ML for anomaly detection
Customizable blocking and alert mechanisms
Payment Software Testing
We check your application from all angles, testing different scenarios to ensure ultimate reliability and an impeccable UX for your payment application:
Automated and manual testing
Transaction logic checks
Load testing
Penetration testing & vulnerability scanning
Crypto Payment Integration
Broaden your payment capabilities by adding support for digital assets. We help you integrate crypto into your existing systems, so your users can pay how they prefer:
Integration with crypto wallets and exchanges (Binance, Coinbase)
Payment processing in USDT, ETH, BTS, and other currencies
Smart contracts & Web3 protocols support
Security & Compliance Services
As regulations and threats evolve, your payment system must keep pace. We help you stay secure and compliant with robust protections and industry-standard practices:
Implementation of ISO, GDPR, and other standards
Data encryption
2FA, biometric authentication, and tokenization
Documentation preparation & audit support
Can your solutions handle multi-currency and cross-border transactions?
Sure! As a payments technology company, we implement real-time currency conversion, localized tax and compliance handling, and seamless integration with international payment gateways — enabling secure, scalable, and compliant global payments for your business.
WHAT WE DO
Custom Payment Solutions We Deliver
Payment Gateways
Custom ones and integrated third-party services supporting various payment methods, multicurrency operations, and secure storage.
Money Transfer Apps
For P2P and B2C transactions, supporting integration with bank accounts, bank card infrastructure, and payment systems like SWIFT and SEPA.
P2P Payment Apps
Used for fast, mobile-first person-to-person payment processing; these apps support contact-based transfers, split-bill features, and in-app wallet funding.
Digital Wallets
For storage and management of fiat and digital assets, supporting such functions as top-ups and withdrawals, QR-code and NFC payments, and crypto wallets integration.
POS Systems
Easily integrated with cash registers and acquiring services, and supporting multi-source payments and syncing with ERP/CRM to manage sales end-to-end.
Billing & Invoicing Systems
Designed to automate invoicing and subscription management while ensuring full visibility and control over all financial operations within your company.
Payment Analytics Software
Such as comprehensive dashboards and customizable reports, empowering businesses to track key metrics of payment activities in real-time.
BNPL Software
Built to offer users flexible payment options, with features like limit and term management, integrated credit scoring, and automated payment scheduling.
To enable scalable growth for an investment advisory firm, we delivered a robust investment management platform along with a companion mobile app. Fully integrated with the bank, the solution streamlines client onboarding, simplifies portfolio tracking, automates document management, and reporting.
16 months
From legacy module to fully independent SaaS investment platform
We built a proof of concept for an AI-powered assistant for a financial data provider, using the capabilities of ChatGPT-4.0. Integrated into a live chat interface, the assistant delivers instant, well-structured financial insights in a clear and user-friendly format, helping end users access critical data faster and with less friction.
Real-Time
GPT-4 powered streaming responses over large-scale grain elevator datasets
Faced with the challenges of maintaining and scaling a decades-old monolithic system, a financial services provider turned to us for a complete technology refresh. We’ve since delivered a companion mobile app and are progressively migrating their platform to a modern microservices architecture, updating legacy code to the latest .NET standards for improved performance, flexibility, and maintainability.
2.5 TB
Historical data being migrated to a new microservices architecture
To help healthcare organizations streamline payment collection and financial workflows, we developed a HIPAA- and PCI-compliant revenue cycle management solution. The platform integrates seamlessly with EMR/EHR systems, ensuring secure and stable data exchange.
32%
Reduction in days sales outstanding within the first six months of implementation
Velvetech has been a great partner who helped us build a world-class platform for retail investors. This partnership helps us attract retail investors and provides tools for investors to manage their money and make informed trading decisions.
Of all the companies we spoke to, Velvetech was the one that had hands-on prior experience with Blockchain. Finding the Velvetech team was the best thing that happened to us. We were able to meet all our deadlines and ship our products on time. We look forward to collaborating with Velvetech in the Blockchain space and other future technological areas.
Yuri is a talented and dedicated software developer. During our time working together I was impressed with his dedicated business acumen, creative yet logical approach to our business, and Yuri's ability to provide multiple cost effective options to meet our unique software development strategy, timeline, and business objectives. I highly recommend Yuri and his team.
What are the benefits of custom-built vs. off-the-shelf payment systems?
Custom-built payment systems give you the flexibility to shape the platform around your exact business needs. Unlike off-the-shelf solutions that can be limited or hard to adapt, a custom approach means you get the features, integrations, and user experience you actually need, without unnecessary extras.
GO MOBILE
Mobile Payment Software Development
Mobile Wallet Apps
Simplify the shopping experience and boost loyalty by offering a fast, secure, and intuitive way to store cards and make payments with one tap.
P2P Payment Apps
Enable lightning-fast and hassle-free money transfers between users to boost engagement, trust, and user retention within your platform.
Contactless Payment Integration
Adapt to changing user preferences and offer payment alternatives by adding support of Apple Pay, Google Pay, and NFC.
Analytics Dashboards
Gain precious insights on user behavior and improve your services accordingly with precise and easily digestible mobile dashboards.
Mobile Invoicing & Billing Apps
Simplify invoicing and payment tracking on the go, accelerating cash flow and cutting operational costs with a reliable mobile app.
Cross-Platform Development
Don’t stick to one OS — reach both iOS and Android users with a cross-platform solution and single codebase to accelerate time to market.
Need a payment gateway expert to start your journey?
Why Choose Velvetech as Your Payment Gateway Software Development Company
Personalization, security, and flexibility of payments are no longer nice-to-haves for millions of people making purchases every day — it’s now a golden standard of a payment application. Failing to meet these expectations means falling behind in user retention and market relevance.
As a seasoned payment gateway software development company, we have a solid track record in fintech and understand both the regulatory landscape and the high stakes of handling financial data. Our team combines deep technical expertise with industry insight to deliver scalable, secure, and high-performing payment solutions that align with business goals and user expectations.
Deep domain expertise
Security-first approach
Extensive skills in AI and data engineering
Cross-platform & omnichannel experience
Strong focus on UI/UX
Proven delivery frameworks
Global regulatory and compliance experience
Fast integration with third-party financial systems
Transparent project delivery
Dedicated team, from discovery through support
WHO WE SUPPORT
Businesses That Rely on Our Payment Solutions
eCommerce Companies
Fintech & Neobanks
SaaS & Subscription Businesses
Marketplaces & Platforms
Banks & Financial Institutions
Healthcare Organizations
Insurance Companies
Logistics & Transportation
Crypto & Web3 Platforms
POS & Retail Chains
ADVANCED TECH
Cutting-Edge Tech Under the Hood of Your Payment Software
Artificial Intelligence & ML
Personalization, fraud detection, and smart forecasting — configure AI models to make them work for you and deliver an exceptional payment experience to your customers.
Blockchain & Distributed Ledger
Transparent reporting for controllers and partners, automated payments, impossibility to fake or rollback transactions — apply blockchain technology when trust matters most.
Data Analytics & BI
Map out transaction paths, detect user drop-offs, and evaluate channel performance — alleviate decision-making with concise visual reports and metrics with the power of business intelligence.
Cloud-Based Infrastructure
Launch faster, scale effortlessly, and ensure uninterrupted service — cloud infrastructure gives your payment solution the flexibility and resilience it needs.
Payment card data protection during storage, processing, and transmission
GDPR
Personal data privacy and user rights
PSD2
Secure open banking and strong customer authentication
GLBA
Financial data protection
ISO/IEC 27001
Global benchmark for managing information security risks
SOC 2
Independently audited controls for data security and confidentiality
3D Secure 2
Added authentication layer that reduces fraud
EMV
Chip-card standard that prevents counterfeit card fraud at the POS
NACHA
Rules governing secure and compliant ACH transfers in the US
How do you ensure PCI DSS compliance?
We build PCI DSS requirements into every step of your project. This means we take care of encryption, tokenization, and access controls, which are part of the initial design. Our payment processing software development includes scoping which PCI DSS level applies to your transaction volume, minimizing cardholder data exposure through tokenization, and preparing your solution for the required assessment or audit.
OUR APPROACH
Payment Software Development Process We Follow
1
Regulatory and Compliance Scoping
We examine your requirements to build a feasible project plan, then we map out which standards apply based on your business model, transaction types, and target markets.
2
Payment Architecture and Provider Strategy
Here, our team defines the payment rails, gateways, and acquirers your solution will run on, then designs the fraud detection and routing logic around them.
3
Secure-by-Design Development
At this step, we develop and deploy your solution, prioritizing encryption, tokenization, and access controls to ensure maximum security and eliminate weak points.
4
Sandbox Testing with Payment Networks
By testing transaction flows against Visa, Mastercard, ACH, and other network sandboxes, we catch integration and edge-case issues before they reach production.
5
Certification and Compliance Audit
We prepare and support your solution through the required certifications and audits, such as PCI DSS assessment and network certification, so nothing blocks go-live.
6
Phased Rollout and Live Monitoring
Finally, we launch your software in stages, with real-time transaction monitoring and fraud-rule tuning based on live data, then we scale it to full volume.
PROJECT BUDGET
Payment Software Development Cost
$50K–$100K
A payment solution, like a single-gateway checkout integration or basic digital wallet, with core features such as card processing, transaction history, and standard security compliance.
$100K–$250K
A payment system, such as a multi-currency payment gateway or P2P money transfer app, featuring fraud detection, multiple payment method support, and PCI DSS-compliant infrastructure.
$250K–$500K+
An enterprise payment processing system or BNPL platform that can include AI-driven fraud prevention, real-time payment rail integration, and full regulatory compliance across multiple markets.
Request the cost of your solution
Our team will provide a detailed estimate based on your unique payment processing requirements.
Timelines always vary by scope. As a reference, a custom payment gateway typically takes 3 to 6 months, from regulatory scoping through sandbox testing and certification. Simpler integrations with existing processors can go live faster, while gateways supporting multiple payment methods, currencies, or full PCI DSS certification take longer.
Which payment gateways and processors do you integrate with?
We integrate with major processors and gateways, including Stripe, PayPal, Adyen, Braintree, Authorize.net, and Checkout.com, along with banking rails like ACH, SWIFT, SEPA, RTP, and FedNow. We provide payment gateway development services that support integrations with any specific provider your business relies on.
How do you handle payment fraud detection?
We combine third-party fraud platforms, such as Sift, Kount, and Signifyd, with custom risk rules. Our approach with machine learning-based scoring and tailored decisioning logic catches both known fraud patterns and business-specific risk signals that off-the-shelf tools miss.
Do you support crypto and stablecoin payments?
Yes. We build crypto payment support using providers like BitPay and Circle for USDC, along with custody solutions such as BitGo, and can integrate Web3 protocols and smart contracts for businesses that need direct blockchain payment flows alongside traditional rails.
Can you modernize our existing payment system without downtime?
Of course. We use a phased rollout approach, where we run the new system alongside your existing one, migrate transaction volume gradually, and monitor in real time before fully cutting over. This lets you upgrade fraud detection, compliance, or payment rail support without disrupting live transactions.
We’ve accumulated solid experience across many industries and business cases and consolidated some of its examples in one place to help you make the right decision.
We offer a variety of engagement models for you to choose the one that can expedite your IT initiative and expand software development capabilities in the most efficient and suitable way for your business.
Being more than a team of IT professionals, we support a flexible and progressive environment to adapt to our clients' needs, earn their trust, and grow expertise.
.NET Core
Python
PayPal
Android
Flutter
Kount
Azure
PostgreSQL
