Development of a crypto-acquiring platform

Budget: 50000 PLN Deadline: 1 day

Hello, I worked on a crypto payment platform for a fintech startup ✅ – we processed over a thousand transactions per day, integrated several crypto wallets and KYC.

Are you planning to use hot and cold wallets for transaction security?

I suggest we get in touch, I will consult you for free on the technical side and we will create a development plan + I will tell you about my team!

Budget: 50000 PLN Deadline: 5 days

Good day. I hold 2nd place in Python on the platform. My team works on crypto/fintech projects in this language as well.

I have experience. There are no exactly similar projects, but there are related ones.

The price and deadline are random in the bid. I would be happy to discuss in more detail in private correspondence.

Budget: 50000 PLN Deadline: 111 days

Hello

I have significant experience in developing fintech and blockchain solutions as well as my own team of developers that guarantees the successful completion of assigned tasks. We specialize in creating secure payment processing systems, integrating cryptocurrency wallets, exchange APIs, and KYC AML services.

We have a good understanding of the internal architecture of fintech and crypto platforms from backend and transaction management to connecting banking APIs and complying with regulatory requirements such as GDPR EU financial legislation.

Our team includes specialists in backend blockchain and DevOps areas. We have implemented solutions with multi-currency cryptocurrency wallets BTC ETH USDT USDC EUR, integration with exchanges and custody providers, KYC AML checks with Sumsub, iDenfy, Onfido, and the implementation of transaction security, hot and cold wallets, encryption, and monitoring.

We guarantee a stable, secure, and scalable implementation of the MVP with a transparent development process and adherence to all security standards.

I would be happy to discuss the technical vision, technology stack, and implementation plan. Expand

Budget: 50000 PLN Deadline: 65 days

Hello
I have extensive experience in crypto and fintech projects - I have created solutions with Binance API, KYC/AML (Sumsub, iDenfy), wallets, and fiat gateways (SEPA / IBAN). I implemented crypto acquiring for a startup with support for EUR↔USDT/BTC and secure storage (hot/cold).

I understand that the MVP should not just be a "payment acceptance" but a foundation for scaling: API, status processing, logging, security.
I usually use the following stack: Java (Spring Boot) / PostgreSQL / Redis / Web3.py / Docker / CI/CD / AWS. (my colleague on the backend)

I can integrate KYC, custody, banking gateway, and design the architecture with compliance in mind.
I work transparently, with phased reports and live tests.

Budget: 50000 PLN Deadline: 60 days

Hello! I have extensive experience in launching SaaS and crypto projects. I am ready to help implement your project and prepare a complete assessment with timelines and pricing. If you are interested, we can discuss the details in private messages.

Budget: 50000 PLN Deadline: 90 days

Hello! I represent the company Innovatech https://innovatech-xi.vercel.app/. We develop web and mobile platforms of any complexity with integration of third-party services. You can familiarize yourself with our previous developments at these links. https://www.aiquarium.xyz/ https://subifee.xyz/

Budget: 50000 PLN Deadline: 65 days

Hello, Denis!

I am engaged in the development of fintech and crypto projects, including solutions for crypto payments, integrations with KYC/AML, and banking APIs.

Your project to create a crypto acquiring platform sounds very interesting - this is exactly the area where my experience aligns best with the task: secure processing of crypto transactions, working with custody wallets, and integrations with exchanges like Binance or Bitstamp.

I propose to implement according to the following plan:

Stack:
- Backend: Node.js (NestJS), PostgreSQL, Redis
- Blockchain layer: Web3.js / Ethers.js + integration with Binance / Bitstamp API
- Custody wallets: Fireblocks / BitGo / Gnosis Safe
- KYC/AML: Onfido or SumSub API
- Banking (SEPA): Solarisbank / Clear Junction integration
- Frontend: Next.js + TypeScript + Tailwind
- Infrastructure: Docker, CI/CD (GitHub Actions), AWS ECS
- Security: 2FA, hot/cold wallet separation, role-based access, audit logs

Development stages (2-3 months):

1) Architecture and Technical Specification + Backend core — $3,000 (2 weeks)
Requirements analysis, structure design, selection of KYC/banking APIs, database schema, service architecture. Start of work: Implementation of modules for processing crypto payments, exchanges, transaction routing, custody wallets.

2) Frontend and admin panel — $3,000 (3 weeks)
Merchant personal account, statistics, payment monitoring, setting up basic UI/UX.

3) Integrations and security — $3,000 (2 weeks)
Connecting KYC/AML, banking APIs, implementing 2FA, logging, testing all flows.

4) DevOps and release — $4,000 (2 weeks)
CI/CD, monitoring (Grafana, Prometheus), deployment on AWS/GCP, documentation, final checks.

Total budget: $13,000.
📝 Work can be done under a contract, with milestone payments and reporting on the results of each step.

Also, please let me know:

Do you have a ready design or examples of interfaces that you like?
Is it planned to only have an MVP in the first stage, or an immediate production infrastructure?

I would be happy to discuss the details :) Expand

Budget: 50000 PLN Deadline: 90 days

Hello! We are the Nemy team - a product studio that creates turnkey crypto platforms.

3 words about us:
→ international award winners from Google and ETH Singapore
→ 60% cheaper than in-house teams
→ a team of developers with 6+ years of experience

You can read more details on the website nemy.agency

We are ready to discuss your MVP.

Budget: 50000 PLN Deadline: 60 days

Hello! I am ready to complete this project and have extensive experience in developing various applications.

Budget: 49900 PLN Deadline: 60 days

Hello, Denis

I suggest we discuss the details, the project is interesting, I have experience.
I have worked on a startup in the Neo Banking sector, developing the backend for an exchange, MVP for HD wallets, a platform with user verification through third-party providers.

Write to me.

Budget: 50000 PLN Deadline: 55 days

Hello, we are a team with extensive experience.
Message us privately, we will discuss.

Budget: 50000 PLN Deadline: 30 days

Good day!
We are a team of 2 developers. And we are the ones you are looking for. We have extensive experience in developing a complete ecosystem for terminal operations for buying/selling cryptocurrencies.
- Integrated dozens of exchanges and exchangers
- Integrated various KYC/AML services
- Work with cold wallets
- Control panel for hundreds of terminals
- Logging and monitoring of terminal operations
- Aggregation of data from crypto providers and tracking the accuracy of cryptocurrency prices
- Automation of deployment and updating of services and terminals
- Microservices architecture that communicates via REST API and WebSocket.
This is a brief list of what has been done.
Main technologies - Typescript, JavaScript, Node.js, React.js, MySQL, MongoDB

We are ready to discuss working conditions and payment and start working.
Thank you for your attention, feel free to write. Expand

Budget: 50000 PLN Deadline: 10 days

Hello
I am a Golang developer with experience in blockchain applications. I have 3 years of experience in Golang development.
Among successful cases are SaveX Wallet (non-custodial MPC Wallet), https://faces.foundation - KYC Token.
I have won crypto hackathons. I have worked with Sumsub, crypto ramps.
Write to me, we will discuss your project. I can participate as an individual developer part-time up to 4 hours a day, as well.

Budget: 50000 PLN Deadline: 20 days

Hi Denys,

I want to apply for your crypto-acquiring MVP project. I have experience building fintech and crypto systems, including payment flows, wallet services, and KYC/AML checks. I have worked with EUR–USDT/BTC payments, hot and cold wallets, and APIs from Binance, Coinbase, and other providers.

I use Node.js or Python, PostgreSQL, Redis, Web3, and Bitcoin/Ethereum RPC. I also work with Sumsub and Onfido for identity checks. I set up Docker, CI/CD, and cloud hosting.

My plan is to build the main backend, add wallets, connect the crypto provider, add KYC, secure the system, and test everything on testnet.

I know GDPR rules and have experience working in fintech teams. I can start soon.

Thank you for your time.
Sincerely,
Jeo Expand