Budget: 40000 PLN Deadline: 60 days
📌Hello.👋
⭐️My name is Andrey.
⭐️My work experience: 12 years+
• ➡️I can show works specifically on the crypto platform
• 🎨Portfolio: 
Freelancehunt
• ✅Work rating on Behance (over 600,000 views)
• 💼More works here: 
Dribbble
Budget: 40000 PLN Deadline: 15 days
Denis, good afternoon! We are the Stellar Logic team from Warsaw, engaged in the development of FinTech and payment solutions. We would be happy to discuss your project, please write to us.
Budget: 39500 PLN Deadline: 28 days
I will create both products on a common core. The transactional engine is one, the payment modules are separate. For crypto, I will connect a custodial service like Fireblocks, and I will process cards and Apple/Google Pay through Stripe or Adyen with tokenization to minimize the PCI DSS scope. KYC through Sumsub. The front end is on React, with two dashboards. Question: do you plan to store crypto custodially or will the user hold the keys themselves?
Budget: 50000 PLN Deadline: 150 days
Hello, Denis!
I have practical experience in launching similar FinTech products, including a crypto platform with acquiring and payment acceptance features for the European market (the team was based in Poland).
I have a deep understanding of the product from both technical and business perspectives: from designing architecture and transactional logic to KYC/AML requirements, risk management, and payment processing.
I can cover the full cycle:
- working out the architecture (single core, modularity, scalability)
- launching the product from scratch (crypto + fiat)
- bringing it to a stable production state
- subsequent support and development
If necessary, I will assemble a relevant team for the project and establish a transparent development process with control over timelines, quality, and resources.
I am ready to discuss the details of the task and propose the optimal implementation format.
I would be happy to continue the dialogue.
Budget: 42000 PLN Deadline: 28 days
Trust a professional with over 10 years of experience! The rates and deadlines are current! I will be happy to cooperate! Experience in commercial development of online stores on CMS, business portals, and corporate websites - 11 years! +CMS: WordPress (+Woocommerce) PrestaShop/Opencart/Joomla/Bitrix/MODX/DLE/Shopify php/html/css/js/Mysql, PhotoShop/Figma Examples of work (from scratch, turnkey): https://amari.net.ua/ https://heypretty.gr/ https://thaibalispa.pl/ https://wildandorganic.com/ https://cryptosignals.org/ https://ecnbot.com https://locs-ua.com/ https://www.grower.com.ua/ https://www.alternativemedicine.com.ua/ https://silkkiss.ua/ https://v12coffee.com.ua/ https://smrtalgo.com/ https://sengero.no/ https://beautybysim.no/ https://sonatagalleri.com/ https://www.solmy-realestate.com/ https://www.emmanuel.com.ua/ https://www.onsitecomputersinc.com/ https://express-tehbud.com/ https://korostenporcelain.com.ua/ https://sladok.com.ua/ https://pricemds.com/
Budget: 40000 PLN Deadline: 14 days
Hello! I am ready to take on the project. I have experience in developing FinTech products — payment gateways, crypto acquiring, KYC/AML integrations.
Regarding the architecture, I see it like this:
• Common core — users, transactions, KYC/AML, notifications, risk engine
• X (crypto) — module for BTC/ETH/USDT/EUR stablecoins, deposits/withdrawals/conversions
• X Business (fiat) — Visa/MC, Google Pay, Apple Pay, merchant cabinet, reporting
• Modular structure — each product connects only its own payment providers, shared database, and transaction logic
Stack: Node.js/Python backend, React frontend, PostgreSQL, microservices architecture. I can work independently or with a team.
Let's discuss the details, timelines, and budget — send the technical specifications or we can arrange a call.
Budget: 40000 PLN Deadline: 90 days
Good day!
I am ready to implement your FinTech platform with a single core and two products (crypto acquiring + business acquiring) with a modular architecture, separation of payment methods, and shared transaction logic.
I will implement the backend with a focus on security, transaction processing, KYC/AML, risk/settlement, and a notification system (email, webhook, push). I will also handle the frontend part: dashboard, payment forms, transaction history, and reporting.
I have an understanding of building similar systems: working with payment gateways, card methods (Visa/Mastercard, Apple Pay, Google Pay), crypto integrations, and high-load services.
I am ready to discuss the architecture, stack, and project details.
Sincerely,
Volodymyr
Budget: 40000 PLN Deadline: 120 days
Good day, Denis
I manage a team that has experience in creating a proxy server rental service with payment through cryptocurrency wallets. We have studied this topic well and can help create the service you need.
For an accurate assessment, we need a technical specification, which we can help create if you don't have one. There are a few clarifying questions:
1. Which crypto services would you like to work with?
2. Is there a design and prototypes of the service pages?
3. Are there deadlines for project completion?
Please reply to this message - I will share references from a completed project, and we can discuss your implementation option in conversation.
Thank you!
Budget: 40000 PLN Deadline: 123 days
Hello,
there is a full-fledged team ready to complete the project turnkey with subsequent support.
Ideally, to continue communication on this matter, we need a technical specification and to discuss the details.
I would be happy to continue the conversation in private correspondence.
I am ready to answer any questions.
There is a European legal entity ready to work under contract.
I would appreciate your feedback.
Budget: 40000 PLN Deadline: 60 days
Hello! I have experience in developing fintech/payment systems and crypto integrations (bridges, gateways, webhooks, risk). I can offer a modular architecture and a team for the full cycle. Do you need a team or is one fullstack enough? What timelines do you plan for the MVP?
Budget: 40000 PLN Deadline: 30 days
Hello, Denis! I have been working on payment system integration for over 10 years. I am ready to develop a crypto acquiring platform and e-com acquiring according to your specifications. Feel free to contact me! I will be happy to collaborate!
Budget: 40000 PLN Deadline: 1 day
At NovaCore Solutions, I lead SaaS and fintech systems with high loads, transactional logic, and production integrations. I can offer a backend-first approach and a team for the full cycle: architecture, API, frontend dashboard, reports, and secure release.
Budget: 39900 PLN Deadline: 29 days
Good day!
My name is Valentin, and I represent Arctic Web Agency. We are a team that specializes in creating modern and effective solutions for business. I can provide examples of our similar work in personal messages. We are ready to take your project to work!
Sincerely,
Arctic Web Team Freelancehunt
Budget: 40000 PLN Deadline: 1 day
Good day, I have 7 years of experience in development. The main focus is fintech and crypto. I have developed payment gateway services, crypto platforms, SaaS, crypto exchangers, and crypto casinos. I can show examples in private.
Budget: 40000 PLN Deadline: 1 day
Hello. I have been working with React/Node.js for over 8 years. I am ready for collaboration.
Budget: 40000 PLN Deadline: 111 days
Hello!
I have relevant experience in FinTech (payment systems, transaction processing, integrations, KYC/AML). I have worked with architecture where one core serves multiple products — I understand how to properly separate crypto and card acquiring while maintaining a common transaction engine.
I propose implementation through a modular core:
— Users / Transactions / KYC / Risk / Notifications
— Separate modules for Crypto (BTC, ETH, USDT) and Business (cards, Apple Pay, Google Pay)
— Scalable architecture (queues, event-driven)
I have a team (backend + frontend), we can deliver the project turnkey: from architecture to dashboard and integrations with Visa / Mastercard, as well as Apple Pay and Google Pay.
Let's briefly discuss the details and break it down into stages.
Budget: 39999 PLN Deadline: 50 days
Hello. I have over 6 years of experience working on FinTech projects. I have launched 7 startups in this industry over the last 3 years. I am ready to complete your order. Price and deadlines will be discussed after a detailed technical specification for development is prepared.
Budget: 40000 PLN Deadline: 1 day
Good day!
I have extensive experience in developing complex backend/frontend solutions, including FinTech projects with transactional logic, payment modules, personal accounts, webhook notifications, reporting, and integrations with third-party providers. According to your description, the task requires a well-thought-out architecture: a common core for users, transactions, KYC/AML, risk/settlement, and notifications, with a separation into two independent products with different payment scenarios and interfaces.
From a technical standpoint, we can implement a modular system where the database, transactional layer, security, and processing remain common, while each product uses only its own payment methods, forms, dashboard, and business logic. This will allow for convenient scaling of the platform further, adding new payment methods, stores, currencies, and separate modules without reassembling the entire system.
I suggest moving to private messages for a more detailed discussion of the technical specifications, deadlines, and costs.
Budget: 40000 PLN Deadline: 15 days
Hello,
I’m interested in your project to build both the user crypto acquiring product and the business acquiring platform on a shared modular core.
This is a serious FinTech system, and I understand that the key challenge is not only building interfaces, but designing a reliable transaction core that can support different payment methods, products, and operational flows while keeping security, risk controls, KYC/AML, settlement logic, and reporting centralized and maintainable.
The architecture you described makes sense: shared users, transactions, compliance, notifications, and risk/settlement logic, with separate product layers that expose only the payment methods and features relevant to each use case. That is the right way to avoid duplicated logic and keep the platform scalable.
I can contribute to:
* modular backend architecture for shared transaction processing
* user and merchant flows for deposits, withdrawals, conversion, and transaction history
* dashboards, payment forms, reporting, and store management
* integration-ready design for KYC/AML, notifications, webhook handling, and settlement
* strong attention to security, auditability, and maintainability
I also understand that for a platform like this, correctness and structure matter more than speed alone. Payment systems require careful handling of transaction states, reconciliation, failure scenarios, permissions, compliance workflows, and reporting accuracy. That is the mindset I would bring to the project.
If needed, I can work as part of a broader team setup or collaborate closely with specialists around compliance and payment integrations.
I’d be glad to discuss the architecture, MVP scope, and phased implementation plan.
Best regards
Nikola
Budget: 40000 PLN Deadline: 3 days
Hello! I have carefully reviewed your project and am ready to start working. I guarantee quality and timely execution.
Budget: 40000 PLN Deadline: 50 days
Hello! I am ready to complete this project and have extensive experience in developing various applications.
Budget: 40000 PLN Deadline: 20 days
Good day, I am interested in your project.
The key task here is to correctly design the core (transactions, users, risk, settlement) so that both crypto and e-commerce acquiring work as separate products but on the same logic.
I have experience working with fintech logic (payments, transactions, API integrations), and I understand the requirements for security, data consistency, and load.
I will propose an architecture:
— modular core (transactions / users / payments / notifications)
— separation of crypto and card processing layers
— scalable backend (Node.js / microservices if necessary)
— dashboard + payment forms
It is important to immediately incorporate correct status handling, webhooks, and protection against transaction desynchronization.
We can discuss the architecture and approach — for such projects, it is important to design correctly first, rather than writing code right away.
Budget: 40000 PLN Deadline: 27 days
Good day! My colleague and I have been professionally engaged in the technical design of high-load financial systems and the development of dashboards for businesses for over 4 years, so we will help your products X and X Business achieve a stable backend in Python and a flexible frontend in React. We will implement shared logic for payment processing and reporting, paying special attention to the integration of Apple Pay/Google Pay and the security of transaction history storage. Our 4 years of experience is confirmed by successful projects drkukharevich.rivne.ua, crave-agency.com.ua, jk-solution.com.ua, where we have already worked with payment forms and the automation of Settlement processes. We will ensure technical excellence in execution and are ready to provide a team for the full development cycle.
Budget: 39999 PLN Deadline: 31 days
Hello! My partner (designer + full-stack) and I have been specializing in the development of complex FinTech platforms and payment gateways for over 4 years, so we professionally implement your ecosystem based on Python (Django/FastAPI) and React, we will develop a modular architecture core for the synchronous operation of crypto acquiring and card methods (Visa/Mastercard), we will implement reliable KYC/AML and Risk Management services and ensure technically flawless transaction processing with instant notifications via Webhooks, our experience in development is 4 years, take a look at our work from the perspective of data security and scalability: hyperfi.tech, espressolab.com.ua, hudi.com.ua
Budget: 40000 PLN Deadline: 30 days
Hello, send the technical specifications in a private message.
Budget: 40000 PLN Deadline: 60 days
Good day. I am interested in your order. I have over 10 years of experience in web development. I suggest implementing the project on Laravel. Write to me in private messages to discuss the details.
Budget: 40001 PLN Deadline: 45 days
Denis, greetings
I have worked with payment systems, KYC/AML, write if you have questions.
We can meet the budget and deadlines.
Sincerely, Paul.
Budget: 40000 PLN Deadline: 30 days
Hello!
My name is Alexey, I represent a group of developers – NC-1.
For over five years, we have been creating websites, mobile applications, online stores, ERP/CRM systems, and other e-commerce products.
We discussed your project with colleagues and concluded that with a budget of 40,000 PLN, it is only possible to create an MVP, and then add the remaining functionality.
I propose our team for the development of the MVP platform:
Lead Backend Developer: Node.js (NestJS), PostgreSQL, working with external APIs (Tatum, Stripe).
Frontend Developer: React / Next.js, TailwindCSS, integration of ready-made UI components.
QA Engineer: Manual testing, Postman (API transaction verification).
Project Manager: Strict scope control, task prioritization, deadline protection.
What will be included in the MVP:
General core:
Authorization: Ready-made solution (Firebase Auth or Supabase), without writing a custom security system.
Database: PostgreSQL for tracking user balances and transaction statuses.
Notifications: Only Email (via SendGrid). Push and Webhooks are postponed.
KYC/AML: Basic integration of iframe from the provider (for example, Sumsub) or just manual moderation at the start.
Crypto for users:
Only EVM and one stablecoin: We keep only USDT (for example, on the Tron or Polygon network for low fees). We remove the integration of Bitcoin and EUR — it takes too long.
Wallets via API: Using a ready-made provider (Tatum API or Circle) for generating deposit addresses and withdrawing funds (no own nodes).
Basic UI: Deposit, withdrawal, transaction history table. We remove internal conversion.
Fiat for business:
Ready-made gateway: Integration of Stripe Connect. Stripe will automatically handle card payments, Apple Pay, and Google Pay "out of the box," relieving us of the issue of card data security (PCI-DSS).
Checkout: Generation of a standard payment link/page on the Stripe side (without a custom widget on the merchant's site).
Dashboard: Simple table with the history of successful payments to the store. We postpone complex reporting and analytics.
Will we cut crypto down to one USDT, or is it critically important for you to keep Bitcoin support already at the MVP stage?
Real experience in developing FinTech projects is mandatory - we have such experience.
Best regards, Alexey M.
Budget: 40000 PLN Deadline: 60 days
Good day.
I am responding because the architecture you describe—a modular core with a common base for transactions, users, KYC, and various payment methods on top—is essentially what I have already built in production.
For 6 years, I have been developing and enhancing a taxi service platform (Minsk, 130k+ orders/month) as a fullstack developer. Inside, there is a full-fledged fintech system: card acquiring through BePaid, tokenization (RSA4096), driver and fleet balances, top-ups, withdrawals, cashbacks, refunds, promo compensations, invoicing, real-time transaction monitoring in the admin panel. Multicurrency support (BYN, UAH, EUR, USD). All transaction logic is on a common core, while business products (client application, driver application, dispatch, admin panel) operated on top of it, each with its own flow. Essentially, the same architecture you describe for X and X Business.
What I can bring to the project:
Designing the architecture of the payment core from scratch (database schema, transactional flows, state machines)
Backend: transactions, settlement, notifications (email/push/webhook)
Integration of payment providers (cards, crypto)
Frontend: dashboards, reports, payment forms
Understanding of edge cases that only arise in production (double charge, race conditions in transactions, partial refunds)
An important point: I am looking for a project with transparent conditions and an adequate work structure. I am open to discussing the format—fixed stages with payment by milestone, hourly rate, or hybrid. But not the format "just code, and then we'll figure it out." This is fundamental.
If a team is needed—I can cover architecture + backend + coordination, while frontend and mobile can be strengthened.
I am ready to call and discuss the details.
Budget: 40000 PLN Deadline: 1 day
Hello!
I am ready to take your project to work today.
I work quickly and accurately, bringing the result to the required level.
I am open to discussing the details.
Portfolio: 
Behance
Budget: 40000 PLN Deadline: 35 days
Hello! I will complete your task quickly and efficiently.
My portfolio: https://freelancehunt.com/ua/freelancer/romas6ka.html#portfolio
Write to me, I will start working today. I will be happy to collaborate with you!
Budget: 40000 PLN Deadline: 30 days
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Budget: 40000 PLN Deadline: 30 days
Hello, Denis!
I carefully read your requirements and understood everything.
I have extensive experience in the fintech and payment systems sector based on Web2/Web3.
If you look at my work history here, you will easily see my experience in this area.
I am confident that I can perfectly complete your project and deliver it on time.
I can create a payment system based on stablecoins using Stripe, AirWallex, or other payment gateways; I can implement a Web2 payment system, including cards, Google Pay, Apple Pay, etc., and I can also implement a secure and convenient payment gateway between Web2 and Web3.
On the other hand, I can perfectly and timely develop KYC/AML, transaction processing systems, notifications, etc.
I would like to discuss this with you.
Thank you.
