Blockchain Developer (DeFi and Cryptography)

Employment type: Full-time

p>Job Description /p> p>Mandatory Skills: /p> p>- Blockchain Developer with DeFi and Cryptography experience: Proven track record of shipping production-grade decentralized applications. /p> p>- Multilingual Programming: Professional proficiency in Solidity and Rust, complemented by strong JavaScript/TypeScript or Python for tooling and testing. /p> p>- Core Architecture: Deep understanding of blockchain internals, including consensus mechanisms (PoS, PoW), state machines, and gas optimization techniques. /p> p>- DeFi Domain Expertise: Comprehensive experience with DEXs, liquidity provisioning, staking, derivatives, payments, lending, and complex tokenomics/token systems. /p> p>- Cryptography Fundamentals: Solid grasp of symmetric/asymmetric encryption, elliptic curve cryptography (ECC), and secure key management. /p> p>- Debugging & Testing: Expert ability to test, simulate, and fix complex bugs in distributed environments using frameworks like Hardhat, Foundry, or Anchor. /p> p> br> /p> p> Note /p> p>About the Role We are seeking a highly skilled Blockchain Developer to join our core engineering team. In this role, you will be responsible for designing, developing, and deploying secure, high-performance decentralized finance (DeFi) protocols. You will bridge the gap between complex financial logic and low-level blockchain implementation, ensuring that our systems are not only innovative but also mathematically sound and resilient to attacks. /p> p>As a specialist in DeFi and Cryptography, you will take ownership of the full development lifecycle—from whitepaper logic and architectural design to mainnet deployment and post-launch optimization. /p> p>Key Responsibilities: /p> p>- Smart Contract Engineering: Design and implement robust smart contracts for DeFi primitives such as automated market makers (AMMs), lending pools, and cross-chain bridges. /p> p>- Protocol Security: Apply advanced cryptographic principles (e.g., digital signatures, hashing, zero-knowledge proofs) to ensure data integrity and user privacy. /p> p>- System Architecture: Design scalable back-end architectures that interface seamlessly with Ethereum, Layer 2 solutions, or Rust-based chains. /p> p>- DeFi Innovation: Research and implement cutting-edge DeFi mechanisms including flash loans, yield farming strategies, and algorithmic stablecoin logic. /p> p>- Audit & Quality Assurance: Conduct rigorous unit testing, integration testing, and formal verification to eliminate vulnerabilities before deployment. /p> p>- Collaboration: Work closely with front-end engineers to integrate Web3 providers and with UI/UX designers to create seamless decentralized experiences. Preferred Qualifications: /p> p>- Experience with Layer 2 scaling solutions (Optimism, Arbitrum, ZK-Rollups). /p> p>- Familiarity with formal verification tools and smart contract auditing processes. /p> p>- Contributions to open-source Web3 projects or active participation in the DeFi research community. /p> p>- Understanding of financial modeling and quantitative analysis. /p>When applying, mention the word CANDYSHOP to show you read the job post completely. This is a beta feature to avoid spam applicants. Companies can search these words to find applicants that read this and see they are human RMTg1LjIxMS4xMDMuNzkM Source: https://web3.career/blockchain-developer-defi-and-cryptography-thoughtstorm/149199