Blockchain Developer (DeFi and Cryptography)
9.0/10
Signature IT World Inc
$110,000 – $140,000 USD
Remote
mid
29 days ago
cryptodefiweb3SolidityRustJavaScriptTypeScriptPython
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Description
What you'll do
- •Smart Contract Engineering: Design and implement robust smart contracts for DeFi primitives such as automated market makers (AMMs), lending pools, and cross-chain bridges.
- •Protocol Security: Apply advanced cryptographic principles (e.g., digital signatures, hashing, zero-knowledge proofs) to ensure data integrity and user privacy.
- •System Architecture: Design scalable back-end architectures that interface seamlessly with Ethereum, Layer 2 solutions, or Rust-based chains.
- •DeFi Innovation: Research and implement cutting-edge DeFi mechanisms including flash loans, yield farming strategies, and algorithmic stablecoin logic.
- •Audit & Quality Assurance: Conduct rigorous unit testing, integration testing, and formal verification to eliminate vulnerabilities before deployment.
- •Collaboration: Work closely with front-end engineers to integrate Web3 providers and with UI/UX designers to create seamless decentralized experiences.
Requirements
- •Blockchain Developer with DeFi and Cryptography experience: Proven track record of shipping production-grade decentralized applications.
- •Multilingual Programming: Professional proficiency in Solidity and Rust, complemented by strong JavaScript/TypeScript or Python for tooling and testing.
- •Core Architecture: Deep understanding of blockchain internals, including consensus mechanisms (PoS, PoW), state machines, and gas optimization techniques.
- •DeFi Domain Expertise: Comprehensive experience with DEXs, liquidity provisioning, staking, derivatives, payments, lending, and complex tokenomics/token systems.
- •Cryptography Fundamentals: Solid grasp of symmetric/asymmetric encryption, elliptic curve cryptography (ECC), and secure key management.
- •Debugging & Testing: Expert ability to test, simulate, and fix complex bugs in distributed environments using frameworks like Hardhat, Foundry, or Anchor.
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