3 months ago
Boston, MA, USAStaff+
Base Salary
$140k - $285k/yr
Responsibilities
- Architect and oversee blockchain-based systems and smart contracts across EVM, Solana, and Cosmos SDK platforms.
- Lead the design and implementation of crypto infrastructure, secure deployment pipelines, testing frameworks, and audit processes.
- Conduct technical reviews and audits of smart contracts for security, scalability, and DeFi standards compliance.
- Design tokenization frameworks, on-chain asset lifecycle management, and cross-chain interoperability solutions.
- Evaluate and integrate DeFi protocols, staking infrastructure, liquidity solutions, and institutional custody platforms.
- Establish practices for blockchain security, smart contract governance, protocol monitoring, threat detection, and incident response.
- Serve as a technical liaison across engineering, trading, and risk teams and mentor senior engineers.
Requirements
- At least 4 years of hands-on experience in blockchain engineering, smart contract development, or crypto infrastructure.
- Deep understanding of EVM/SVM architecture, ERC-20, ERC-721, SPL token standards, and DeFi primitives.
- Proficiency in Python, Solidity, and JavaScript/TypeScript.
- Experience with Hardhat and Foundry.
- Hands-on Solana development experience with Anchor Framework, SPL token integrations, Program Derived Addresses, and Cross-Program Invocations.
- Strong knowledge of AMMs, lending protocols, liquid staking, yield generation, oracle networks, and tokenization platforms.
- Expertise in smart contract security reviews, threat modeling, protocol risk assessments, and secure software development practices.
- Ability to lead complex technical projects and mentor senior engineers.
Benefits
- Comprehensive health care coverage and emotional well-being support.
- Market-leading retirement benefits, paid time off, and parental leave.
- Charitable giving employee match program.
- Educational assistance including student loan repayment, tuition reimbursement, and learning resources.
- Fidelity is transitioning toward a full-time onsite working model, with onsite expectations varying by region and role.
Tech Stack
Categories
About Fidelity
Fidelity Investments provides brokerage, retirement plan recordkeeping, wealth management, and asset management services to individuals, employers, advisors, and institutions, plus online trading platforms and mutual funds and ETFs. It earns fees from managing and administering assets, advisory services, and brokerage transactions. Founded in 1946 and headquartered in Boston, it is privately held and administers trillions of dollars for U.S. and global customers.