Crypto Escrow Platform (Bitcoin & Multi-Crypto) – Full Stack Developer

We are looking for an experienced Full Stack Developer with strong knowledge of cryptocurrency, blockchain integrations and security to build a lightweight crypto escrow platform.

The platform should be inspired by the simplicity of:

https://www.guaranty-escrow.com/what-is-crypto-escrow/

but only include the essential features required for a secure escrow service.

Public Website

The website should allow buyers and sellers to:

Create an escrow transaction
Register/Login
Deposit cryptocurrency
Track payment confirmations
Communicate through the escrow process (optional internal messaging)
Release or refund funds according to the escrow workflow
Receive email notifications

The interface should be clean, professional and easy to use.

Supported Cryptocurrencies

The platform should be designed so additional cryptocurrencies can easily be added.

Initially we would like support for:

Bitcoin (BTC)
Monero (XMR)

Please explain your proposed architecture for adding additional cryptocurrencies later.

Escrow Features

The system should include:

Unique escrow Order ID
Buyer & Seller accounts
Escrow status tracking
Deposit detection
Release funds
Refund funds
Dispute status
Admin override
Fee calculation
Wallet history
Audit log

Status examples:

Awaiting Payment
Awaiting Confirmations
Funded
Released
Refunded
Disputed
Cancelled
Wallet Integration

The system must support either:

Self-hosted full nodes

Examples:

Bitcoin Core RPC
Monero Wallet RPC
Blockstream
Mempool
BlockCypher
Tatum
Other professional solutions

Please explain which solution you recommend.

Security Requirements

Security is the highest priority.

The project should include industry best practices:

HTTPS / SSL
CSRF protection
XSS protection
SQL Injection protection
Rate limiting
Secure session management
Argon2 password hashing
Two-Factor Authentication (2FA)
Encrypted wallet/key storage
Environment variables for secrets
Audit logging
Role-based permissions
Protection against replay attacks
Secure withdrawal validation

Do NOT hardcode private keys anywhere in the application.

Wallet Information

For each escrow transaction the system should store and display (when appropriate):

Order ID
Deposit Address
Confirmation count
Escrow fee
Amount received
Amount released
Date and time

For Monero support, if implemented, include handling for:

Wallet Address
Private View Key
(Only if absolutely necessary) Secret Spend Key

Sensitive wallet information must be encrypted and only accessible to authorized administrators.

Admin Dashboard

The administrator dashboard should allow me to:

User Management
Create users
Suspend users
Delete users
Reset passwords
Lock accounts
View login history
Escrow Management
View every escrow
Filter by status
Search by Order ID
Search by wallet address
Search by TXID
Search by username
Force release
Force refund
Freeze escrow
Flag suspicious transactions
Reports

Generate reports by date range including:

Number of escrows
Total volume
Total fees collected
Released transactions
Refunded transactions
Disputed transactions
Failed transactions
Technical Requirements

We are open to the technology stack, but preference will be given to modern, secure frameworks.

Preferred technologies include:

Backend

Rust
Go
Node.js
Laravel (if security is well implemented)

Frontend

React
Next.js
Vue

Database

PostgreSQL
Deliverables

The project will be considered complete when I can:

Deploy from a clean repository
Configure environment variables
Connect my own Bitcoin node or blockchain APIs
Run the complete escrow workflow
Test deposits
Detect confirmations automatically
Release funds
Process refunds
Log in as administrator
Manage users
Manage escrows
Generate reports

without application errors.

Documentation

Please include:

Installation guide
Configuration guide
API documentation
Database schema
Sample data
Deployment instructions
Security recommendations
Required When Applying

Please include:

Examples of previous crypto projects
Experience with Bitcoin, Monero or blockchain development
Technologies you recommend and why
Estimated timeline
Estimated budget
Whether you recommend self-hosted nodes or third-party blockchain APIs