Alexander Ruin

Custom Web Development

Alexander Ruin - freelancer. Quickly transform your ideas into concept, concept into project, project into execution, flexibly adjusting for results. Any stack: AI, automation, integrations. Source code + documentation + support. Pricing starts at $2000.

Development of Blockchain and Crypto Solutions

I offer the development of custom solutions for working with blockchain and cryptocurrencies. From internal tools for analytics and automation to public services. We help businesses operate safely and efficiently in the Web3 space.

Cases and examples

Bitcoin Mempool Explorer

We deployed a Bitcoin mempool explorer (full node + ElectrumX) on the client's dedicated server, with modifications to the source code to operate within a corporate firewall environment.

Cryptocurrency AML checker on Telegram

We created an internal bot for the crypto exchange that, on command, checks Bitcoin and Tron addresses for "cleanliness" via an AML service API and helps operators make quick decisions.

Automation of cold outreach for crypto projects

We have developed a system that parses new projects from the blockchain, finds their contacts, and automatically sends out personalized commercial proposals.

👥 Who is it for

Cryptocurrency projects and startups Financial companies and exchange offices Companies working with Web3 technologies Investors and analysts in the cryptocurrency sector

🎯 Use Cases

💡 Development of Internal Tools for AML/KYC Checks
💡 Development of Analytical Dashboards
💡 Automating Interaction with Smart Contracts
💡 Building Systems for Blockchain Network Monitoring

🛠️ Technologies Used

Blockchains: Bitcoin, Ethereum, Tron, EVM-compatible networks Languages: Python, Node.js, Go Tools: Web3.py, Ethers.js, Bitcoin RPC API: APIs for AML services (Chainalysis, Crystal), exchange APIs, blockchain explorers. Infrastructure: Docker, node management, security

What is required of you

  • Description of a task or business process related to cryptocurrencies.
  • Safety and performance requirements.
  • Access to the APIs of required services (exchanges, AML services).
  • Clear understanding of the legal and regulatory aspects of the task.

What you get

  • A custom blockchain solution tailored to your specific needs.
  • A safe and tested software product.
  • Full control over data and processes (in the case of self-hosted solutions).
  • Source code and technical documentation.
  • Security and integration consulting.
  • Work until the result is achieved — I adjust the solution along the way for maximum business value.

📋 Order a service

Fill out a short brief — I will respond within 24 hours.

📝 Enter your details

Example: A Telegram bot with payment functionality and CRM integration is needed.

I will send the answer to this address within 24 hours. You can provide your Telegram in the brief.

💬 After submitting the application, I will contact you using the provided details to clarify the specifics.

🎁 What you will get

A custom blockchain solution tailored to your specific needs.

A safe and tested software product.

Full control over data and processes (in the case of self-hosted solutions).

Source code and technical documentation.

Security and integration consulting.

Work until the result is achieved — I adjust the solution along the way for maximum business value.

Fast execution

💬 After submitting the application, I will contact you using the provided details to clarify the specifics.

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