Freelancers using Stripe in RivneFreelancers using Stripe in Rivne
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Konstantin Nikolaienko's avatar
Konstantin Nikolaienko
Rivne, Ukraine
AI & Full Stack Developer | Next.js, SaaS, Stripe, Automatio
New to Contra
AI & Full Stack Developer | Next.js, SaaS, Stripe, Automatio
Cover image for SaaS Authentication & Subscription System
SaaS Authentication & Subscription System
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Cover image for Built a modern SaaS dashboard
Built a modern SaaS dashboard with authentication, payment integration, and responsive frontend architecture. The project includes: • Secure authentication flow • Stripe payment integration • Responsive dashboard UI • SaaS subscription structure • Modern Next.js frontend • Real-time data handling Focused on performance, scalability, clean UX, and production-ready architecture.
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Cover image for :Cryptonix is an AI-powered crypto
:Cryptonix is an AI-powered crypto intelligence platform focused on trading signals, automation, and real-time market analysis. I designed and developed the frontend architecture, dashboard system, AI signal interface, authentication flow, and responsive UI/UX using Next.js and modern web technologies. Features include: • AI trading signals • Real-time market dashboard • Responsive mobile interface • Authentication system • Stripe/payment integrations • Modern SaaS architecture Built with performance, scalability, and clean UI in mind.
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Cover image for Currently building Cryptonix — an
Currently building Cryptonix — an AI-powered crypto intelligence platform focused on trading signals, automation, and real-time analytics. Built with Next.js, Stripe integrations, crypto payments, and modern SaaS architecture.
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Stripe(3)