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| Job Position | Company | Posted | Location | Salary | Tags |
|---|---|---|---|---|---|
EWOR GmbH | Sacramento, CA, United States | $72k - $120k | |||
Khan Tech | Armenia | $90k - $112k | |||
Somnia | United Kingdom | $90k - $100k | |||
Gemini | Singapore, Singapore | $105k - $148k | |||
Bitso | México |
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Paypal | San Jose, CA, United States | $98k - $180k | |||
Nous Research | United States | $103k - $112k | |||
Nous Research | United States | $84k - $150k | |||
BloXroute Labs | Van, Turkey | $105k - $180k | |||
Tradias GmbH | New York, NY, United States | $63k - $81k | |||
Lobster | Paris, France | $40k - $100k | |||
Dynamic | United States | $72k - $75k | |||
Blockaid | New York, NY, United States | $36k - $65k | |||
Gemini | New York, NY, United States | $84k - $118k | |||
Base | Remote | $144k - $170k |
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
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
- MPC Protocol Implementation: Design and implement MPC (Multi-Party Computation) protocols in Golang to build highly available private key sharding and distributed signature services
- Key Lifecycle Management: Develop secure end-to-end key lifecycle management systems including key generation, storage, recovery, and destruction
- Threshold Signature Scheme (TSS): Implement TSS algorithms and secure multi-party computation protocols for 2/3 signature distribution
- Multi-chain Integration: Build integration layers for multiple blockchain networks including Bitcoin (BTC), XRP, Solana (SOL), EVM-compatible chains (ETH, BNB, AVAX, ARB, POL), and TRON
- Hardware Security: Integrate HSM (Hardware Security Module) solutions (YubiHSM, AWS CloudHSM, Azure Dedicated HSM) for enhanced security
- API Development
- Internal APIs: Build and maintain internal APIs to expose pool data, routing results, and token balances to frontend services
- Wallet APIs: Develop secure APIs for wallet operations, transaction signing, and blockchain interactions
- Hardware Wallet Integration: Implement interfaces for Ledger and Trezor hardware wallet integration
- System Architecture
- Microservices Design: Architect scalable, secure microservice architecture supporting MPC wallet operations
- Performance Optimization: Optimize high-performance data pipelines and real-time event processing systems
- Security Implementation: Implement security best practices across all wallet and trading operations
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:
- Practical development experience with digital wallets, exchanges, or custody services
- Familiarity with BIP-32, BIP-39, BIP-44 wallet standards
- Open Source & Community:
- Contributions to open-source blockchain projects (Cosmos SDK, Ethereum clients, etc.)
- Active participation in blockchain developer communities
- Advanced Technical Skills:
- Experience with zk-SNARKs, zk-STARKs, or other zero-knowledge proof systems
- Knowledge of cross-chain bridges and interoperability protocols
- Familiarity with FHE (Fully Homomorphic Encryption) or advanced cryptographic primitives
- Security Certifications:
- Cryptography or blockchain security certifications
- Experience with security audits and vulnerability assessments