I will saas app development fintech payment integrations java spring bot node js react
United States
Flutter app developer, Backend development, React Native Mobile App
About this Gig
Are you struggling to turn your fintech idea into a working SaaS product, losing customers due to poor user experience, or wasting time with disconnected payment systems and manual workflows? I build modern SaaS and fintech web apps with seamless payment integration, intuitive dashboards, secure user authentication and automated workflows to help you launch your product and serve customers efficiently.
My Services:
- SaaS app, SaaS MVP and fintech web app development
- SaaS landing pages with React, Next.js and Tailwind CSS
- Full stack web applications, admin panels and client portals
- User login, authentication, roles and multi-tenant SaaS
- Supabase, PostgreSQL, database design and API integration
- Stripe, Paystack and Flutterwave payment gateway integration
- Subscription billing, invoices, transactions and payment webhooks
- Financial dashboards, expense tracking, analytics and reports
- AI SaaS features, CRM integration and workflow automation
- Responsive UI, bug fixing, testing, GitHub and Vercel deployment
fintech SaaS, SaaS website, SaaS web app, SaaS MVP, web application, React, Next.js, TypeScript, Tailwind CSS, Node.js, Supabase, PostgreSQL, Prisma, REST API, Stripe, Paystack,
Platform:
Cross-platforms
App type:
Native
Frameworks:
Flutter
•
Kivy
•
Beeware
•
Kodular
•
Angular
•
SwiftUI
•
Node.js
Tools:
Flutterflow
•
Expo
•
Bravo
•
Adalo
•
Unity
•
Passion.io
•
Supabase
My Portfolio
FAQ
What types of SaaS and fintech apps can you develop?
I develop SaaS MVPs, fintech web apps, SaaS landing pages, admin dashboards, client portals, subscription platforms, financial analytics dashboards, expense trackers, invoicing systems and custom business web applications.
Can you integrate pa'yment gateways into my SaaS app?
Yes! I can integrate supported pa'yment gateways such as Stripe, Pa'ystack and Flutterwave for checkout, subscriptions, invoices, pa'yment verification and transaction tracking, depending on your business location and provider eligibility.
What technologies and tools do you use for SaaS development?
I work with React, Next.js, TypeScript, Tailwind CSS, Node.js, Supabase, PostgreSQL, REST APIs, GitHub and Vercel. The stack depends on your project requirements, scalability needs and preferred integrations.
Can you build a complete SaaS MVP with authentication and a database?
Yes! I can develop a functional SaaS MVP with user registration, secure authentication, role based access, dashboards, database integration, core features, API connections, testing and deployment based on your selected package.
Can you improve, fix or integrate features into an existing SaaS app?
Yes! I can troubleshoot bugs, improve responsive UI, integrate APIs, connect databases, add pa'yment or AI features, configure webhooks, optimize performance and assist with deployment. Please provide your requirements and existing project details.

