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About the Role

We are building on-chain collateral markets for both traditional and crypto-native finance, scaling our core protocol and its associated products. You will work with our existing smart contract codebase, including core contracts, extensions, and middleware SDK, while also developing new modules from scratch. Your responsibilities will include extending mature, in-production systems and architecting new financial products on our platform.

Responsibilities

Design, write, optimize, and audit smart contracts in Solidity, focusing on performance, clarity, and security.
Build DeFi primitives from scratch, including vaults, lending mechanics, staking, and related protocol-level components.
Develop adapters, connectors, and plugins for our Liquid Lane product.
Contribute to the design and development of new financial products.
Conduct and support security audits, addressing vulnerabilities and hardening contracts.
Build beyond the contract layer, leveraging AI for simple frontends, indexers, and internal tooling to complete work end-to-end.

Requirements

Expertise in Solidity with deep knowledge of EVM internals, including execution flow, memory/storage models, gas mechanics, and precompiles.
Strong understanding of DeFi protocols and primitives, including lending protocols, DEXes, and stablecoins, their failure points, and common pitfalls.
Strong security mindset, with familiarity in common attack vectors, contract optimization, and the audit process.
Comfortable working across the full stack when necessary.
Solid computer science fundamentals, including algorithms and low-level reasoning about code execution.

Skills

Solidity
EVM internals
DeFi protocols
Smart contract security
Full-stack development
Algorithms
Compiler development
Rust
Go
C/C++
Python
JavaScript/TypeScript
Yul
Vyper
Huff

About the Company

Symbiotic is the infrastructure beneath collateral markets, enabling capital to secure financial obligations, remain productive, and be enforced by code.
Symbiotic enables new categories of neofinance applications by changing the economics of onchain collateral.
Symbiotic is positioned to become the coordination layer connecting capital and risk across the onchain economy as institutional capital moves onchain.
Backed by Paradigm, Pantera, Cyber.fund, and Coinbase Ventures.
Powers 80+ vaults, 74,000+ active stakers, and 111 operators.
Teams like Chainlink, Nexus Mutual, and Cap Labs are live in production.
A tight-knit team of experienced builders working at the forefront of financial infrastructure.
Backgrounds span high-growth tech start-ups, leading crypto companies, major banks, insurers, and financial institutions.
Work with ownership, a high bar for craft, and the urgency of an early-stage company.
An environment where people are trusted to take initiative and supported to do their best work.