What are the responsibilities and job description for the Fermah — Solidity & Rust Engineer position at deCircle?
Fermah is the universal proof generation layer.
It functions as a marketplace, where the supply side comprises GPUs and FPGAs. On the demand side, Fermah can generate proofs for any instance in which ZK is used.
Fermah is bringing moon math to the masses.
Fermah was founded by Dr. Vanishree Rao. She has been designing and building ZK for over 15 years and has a PhD in cryptography from UCLA.
We are building a world-class team that values delivering results with excellence and empathy.
Job Description
We are seeking a dedicated Solidity & Rust Engineer to work on cutting-edge mechanism design for ZK proof generation.
The engineering team at Fermah operates with shared accountability and without traditional hierarchy. As an early team member, you will help define not only the technical direction of our integrations but also the values and culture of our company. You will have the freedom and autonomy to influence the trajectory of our platform while bringing your ideas and technical expertise to life.
You’ll be tasked with complex and rewarding challenges.This is an exceptional opportunity for you to take ownership of key integrations, drive tangible results, and gain invaluable experience working in one of the most exciting sectors within crypto.
Responsibilities:
Implement the smart contracts for Fermah’s payment system
Maintain and upgrade contracts with fixes or new features
Assist with security audits
Contribute to the Rust codebase alongside Solidity development (this is not a full-time Solidity role)
At least 2 years of experience in Rust and Solidity
Experience implementing complex smart contracts in Solidity
5 years of experience in software engineering
Ownership mindset
Strong communication and collaboration skills
Nice to Haves:
Familiarity with EVM off-chain development (reth, ethers)
Experience with implementing and utilizing gRPC APIs
Understanding of peer-to-peer networking concepts, including libp2p and Distributed Hash Tables (DHT)
Basic knowledge of cryptographic principles, including hash functions and pairing-based cryptography (ECDSA, BLS)
Benefits:
Competitive salary and equity
Take-what-you-need vacation
Opportunity to work with a driven, talented, dedicated team that values collaboration, innovation, and making a strong positive impact
Culture built upon mutual respect, empathy, excellence and delivery