Senior Wallet Developer (Web3)

Location: 100% remote

Company

hirify.global is a financial technology company providing secure, scalable, and customizable digital asset trading platforms for exchanges and brokerages worldwide.

What you will do

• Design, build, and maintain secure wallet infrastructure, transaction workflows, and backend services for digital assets.
• Develop REST APIs, gRPC services, WebSockets, streaming data pipelines, and event-driven systems using C#/.NET, Node.js, and TypeScript.
• Integrate wallet, custody, payment, blockchain, and financial services, including providers such as Fireblocks.
• Build developer tools, internal services, automation, and operational tooling to improve reliability and engineering efficiency.
• Deploy and operate systems using Docker, Kubernetes, CI/CD platforms, AWS, cloud, and bare-metal infrastructure.
• Support transaction processing, transfers, monitoring, confirmations, reconciliation, and real-time financial data systems.

Requirements

• Strong professional experience developing production-grade software, with advanced experience in C#/.NET, TypeScript/JavaScript, Node.js, or similar technologies.
• Experience with REST APIs, gRPC, WebSockets, streaming data, event-driven systems, Docker, Kubernetes, CI/CD, AWS or GCP, and cloud or bare-metal infrastructure.
• Strong understanding of secure coding, software architecture, authentication, authorization, secrets management, cryptographic operations, and sensitive financial data.
• Experience with financial services, payment, trading, digital asset, wallet, custody, blockchain, or other security-sensitive systems.
• Knowledge of KYC, KYT, AML, Travel Rule, sanctions screening, transaction monitoring, and related digital asset regulations.
• Bachelor’s degree in a relevant field or equivalent professional experience, plus strong troubleshooting, ownership, communication, and collaboration skills.

Nice to have

• Experience with MPC wallet architectures, cryptographic key management, KMS, secure signing, custody infrastructure, and key lifecycle management.
• Experience with Fireblocks or similar wallet and custody platforms, blockchain networks, exchanges, payment providers, and custodians.
• Knowledge of blockchain transaction flows, confirmations, balances, deposits, withdrawals, reconciliation, and highly available fault-tolerant systems.
• Familiarity with Solidity, smart-contract technologies, and emerging blockchain, cryptographic, distributed-system, and fintech technologies.

Culture & Benefits

• 100% remote work opportunity.
• Work in a fast-paced environment with evolving technologies and requirements.
• Contribute to digital asset infrastructure used by exchanges and brokerages worldwide.