Sr. Solidity engineer

Hashstack

Hashstack is on a mission to build an ecosystem of trustless, borderless autonomous financial products that serve the needs of millions of underserved around the world.

Our product, Open protocol facilitates secure under-collateralized loans upto 3
times the collateral.

> This is an onsite role in Bangalore, India.

Our Technology

We use NodeJs in the backend to monitor on-chain & off-chain protocol interactions. The client is built in ReactJs/Ant UI. Our APIs are served through REST. We implement diamond standard(EIP 2535) for smart contract scalabiltiy & upgradeability.

Requirements

1. 4+ years full time experience in software development[Backend is preferred].
2. 2+ year practical experience developing smart contracts in Solidity.
3. Practical knowledge of Yul intermediary language.
4. Can write secure, scalable smart contracts on Ethereum as well as EVM compatible blockchains such as Binance smart chain, Polygon.
5. Proof of work: At least 3 live projects on-chain.
6. Proficient with fungible & non-fungible token standards.
7. Practical knowledge of Slither, web3/ethers, truffle/hardhat, truffle/hd-wallet, ganache-cli, smartcontract oracles, Infura, Diamond standard/Proxy pattern.
8. Practical knowwledge of Github workflows, typescript, reactJs.
9. Test driven development.
10. Methodical approach to every day tech problems.
11. Experience managing a team of 6+ developers.
12. Good time management & people skills.

Bonus points [Nice to have]

• First principle thinking.
• 2 Positive references.

Scope of work

• Own up the smart contract development at Hashtack.
• Streamline smart contract development, QA, code review & security audit processes.
• Prepare & optimise technical architecture for smart contract interactions.
• Develop secure, scalable & upgradeable smart contracts basing EIP 2535.
• Write end-to-end unit and integration tests.
• Manage solidity engineers through task delegation, analysing code, streamling development environment.
• Technical documentation.

Skills

*Solidity/Cairo,
Javascript/Typescript,
Testing smart contracts,
Web3JS/EthersJS/StarknetJS,
Exposure to popular smart contract design patterns,
ERC standards. *

What to expect

We are results driven. We get things done. We work hard. When we fail, we learn
fast, & pick ourselves up.

1. Opportunity to work on meaningful problems.
2. Fast moving, challenging and unique business problems.
3. Competitive salary & flexible hours.
4. Meritocracy culture.