Senior Developer

We are looking for a senior developer to build out a new multi-sig management system and user app.

Project Scope:

We are building a comprehensive Bitcoin custodial service featuring both an administrative portal and a client-facing application. Our system will leverage multi-sig to provide secure and flexible Bitcoin storage, ensuring our clients have full control over their funds while maintaining the highest security standards.

Key Features:

Secure HD Wallets :

• Implement mobile phone HD wallets attainable via. password.
• Support multi-sig.

Administrative Portal :

• Secure access for administrators to manage client accounts and funds.
• Capabilities to create and broadcast Bitcoin transactions.
• Modular design to support future feature expansions.

Client Application :

• Intuitive interface for clients to view their Bitcoin accounts and balances.
• Secure methods for clients to request payments using their mobile keys or fully sign using both of their keys.
• Communication features to facilitate support and queries.

Database Security :

• Implement an extremely secure database to store user information, account public keys, and related data.
• Offline storage solutions for private keys.
• Ensure compliance with relevant regulatory requirements and best practices in data security.

Transaction Management :

• Enable clients to request payments.
• Admin to fully sign transactions for approval.
• Facilitate PSBTs, allowing a collaborative signing process for enhanced security.

Required Expertise:

Bitcoin and Multi-sig Technology :

• Deep understanding of Bitcoin fundamentals, wallet creation, and transaction management.
• Experience with HD wallets, multi-sig wallets, and secure key storage practices.

Web and Mobile Development :

• Expertise in building secure, user-friendly web and mobile applications.
• Experience with frontend and backend development, including frameworks like React, Node.js, etc.

Database Management :

• Skilled in designing and managing secure databases.
• Experience with encryption and secure storage solutions.

If you are passionate about Bitcoin and security, and possess the technical skills to bring this vision to life, we want to hear from you.