Blockchain Developer (DeFi and Cryptography)
Jobs via Dice · United States
- Hybrid
- Full-time
- $150,000 / year
- United States
Job highlights
- Develop secure, high-performance DeFi protocols.
- Design and implement smart contracts for DeFi primitives.
- Apply advanced cryptography for data integrity and privacy.
- Architect scalable back-end systems for blockchain integration.
- Test, simulate, and fix bugs in distributed environments.
About the role
Blockchain Developer (DeFi and Cryptography)
Dice is the leading career destination for tech experts at every stage of their careers. Our client, Connect Tech+Talent, is seeking the following. Apply via Dice today!
Job Description
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.
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.
Key Responsibilities:
- 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.
Preferred Qualifications:
- Experience with Layer 2 scaling solutions (Optimism, Arbitrum, ZK-Rollups).
- Familiarity with formal verification tools and smart contract auditing processes.
- Contributions to open-source Web3 projects or active participation in the DeFi research community.
- Understanding of financial modeling and quantitative analysis.
Mandatory Skills:
- 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.
Key skills/competency
- Blockchain Development
- DeFi Protocols
- Smart Contract Engineering
- Cryptography
- Solidity
- Rust
- Zero-Knowledge Proofs
- Layer 2 Scaling Solutions
- Web3
- Smart Contract Auditing
Skills & topics
- Blockchain Developer
- DeFi
- Cryptography
- Smart Contracts
- Solidity
- Rust
- Web3
- Decentralized Finance
- Ethereum
- Remote
How to get hired
- Tailor your resume: Highlight your experience with Solidity, Rust, DeFi protocols, and cryptography.
- Showcase your projects: Include links to production-grade decentralized applications you've developed or contributed to.
- Prepare for technical interviews: Be ready to discuss blockchain internals, consensus mechanisms, and smart contract security.
- Demonstrate DeFi expertise: Emphasize your understanding of AMMs, lending pools, yield farming, and tokenomics.
- Highlight crypto knowledge: Be prepared to explain cryptographic principles and their application in blockchain.
Technical preparation
Master Solidity and Rust for smart contracts.,Understand blockchain internals and consensus mechanisms.,Practice with Hardhat, Foundry, or Anchor frameworks.,Study DeFi protocols and cryptographic principles.
Behavioral questions
Describe a complex smart contract you developed.,How do you ensure security in DeFi protocols?,Explain your experience with cross-chain bridges.,How do you stay updated on DeFi innovations?
Frequently asked questions
- What are the key programming languages for this Blockchain Developer role at Connect Tech+Talent?
- For this Blockchain Developer position, professional proficiency in Solidity and Rust is mandatory. Additionally, strong JavaScript/TypeScript or Python skills are required for tooling and testing purposes.
- What specific DeFi protocols should I be familiar with for this role?
- You should have comprehensive experience with Decentralized Exchanges (DEXs), liquidity provisioning, staking, derivatives, payments, lending, and complex tokenomics/token systems to excel in this Blockchain Developer role.
- Does this Blockchain Developer position require knowledge of Layer 2 scaling solutions?
- Yes, experience with Layer 2 scaling solutions like Optimism, Arbitrum, and ZK-Rollups is a preferred qualification for this Blockchain Developer role, indicating the importance of understanding scalability in blockchain development.
- What level of cryptography understanding is expected for this role?
- A solid grasp of cryptography fundamentals is mandatory, including symmetric/asymmetric encryption, elliptic curve cryptography (ECC), and secure key management. Advanced principles like zero-knowledge proofs are also relevant for protocol security.
- Is this a remote Blockchain Developer position?
- Yes, this Blockchain Developer position with Connect Tech+Talent is a remote role, offering flexibility for candidates regardless of their location.
- What kind of smart contracts will I be developing as a Blockchain Developer?
- As a Blockchain Developer, you will design and implement robust smart contracts for DeFi primitives, including automated market makers (AMMs), lending pools, and cross-chain bridges.
- What are the main responsibilities regarding protocol security in this role?
- You will be responsible for applying advanced cryptographic principles to ensure data integrity and user privacy, making the developed protocols resilient to attacks.
- What tools or frameworks are used for testing and debugging in this role?
- Expert ability to test, simulate, and fix complex bugs in distributed environments is required, utilizing frameworks such as Hardhat, Foundry, or Anchor.