BITFIT LABS PTE LTD is hiring a

Senior Blockchain Engineer

1. About BitFit Labs

We are building enterprise cryptocurrency wallet powered by advanced Multi-Party Computation (MPC) Threshold Signature Scheme (TSS). This solution provides institutional-grade security for asset custody through distributed key management technology.

Core Features:
- Signature Scheme: 2/3 threshold signature distribution
- Multi-chain Support: Bitcoin (BTC), XRP, Solana (SOL), EVM-compatible chains (Ethereum, BNB Chain, Avalanche, Arbitrum, Polygon, etc.), TRON
- Hardware Integration: Support for Ledger and Trezor hardware wallets
- Secure Key Management: TSS nodes distributed across isolated environments with HSM integration

2. Key Responsibilities

- MPC/TSS Wallet Development

- API Development

- System Architecture

3. Requirements

- Experience: 5+ years of backend development experience, with 3+ years focused on Golang development
- MPC/TSS Expertise: Deep understanding of MPC/TSS technology stack with actual production system development experience
- Cryptography: Strong knowledge of Elliptic Curve Cryptography (ECC), Zero-Knowledge Proofs, and Threshold Signature schemes
- Blockchain Protocol Experience: Extensive experience in blockchain protocol layer development, familiar with at least Ethereum, Bitcoin, and Solana mainstream public chains
- Security Systems: Development experience in high-security systems (financial, payments, cryptocurrency)
- Cloud Native: Proficiency with Docker, Kubernetes, and CI/CD cloud-native technology stacks
- System Design: Excellent system design capabilities with experience designing scalable microservice architectures
- Data Pipelines: Experience building high-performance data pipelines and real- time event processing systems


4. Preferred Qualifications 

- Wallet & Custody Experience: 

- Open Source & Community: 

- Advanced Technical Skills: 

- Security Certifications: