Blockchain Developer

Location:

Remote, Ukraine

Skillweb - Ukrainian company, based in the Czech Republic. We are a small team of about 15 developers, and we are growing fast! Our expertise: game and blockchain.

We are looking for a Blockchain developer who is able to work on our project from scratch.

Responsibilities:

Code creation (with full unit-tests coverage and documentation)
Preparation of the contracts architecture
Consultation of backend and frontend teams for correct contract calls (correct ABI usage, smart contract flows, consultations for Subgraph and APIs creation)
Code review (within the project and cross-review at other projects)
Research for protocol integration points and research for target protocols used in the system
Work with RPC providers, NFT metadata, decentralized storage
Periphery JS scripting and snapshoting based on ethers and web3
Contribute high-quality and well-tested Solidity code, including smart contract development.
Reviewing and auditing (internally) developed smart contracts by other teams.
Implementing and executing comprehensive unit, integration, and fuzzy testing.
Contributing to the requirements drafting/analysis.
Assisting in maintaining the product's CI/CD pipeline.
Communication and collaboration with a fully distributed team.
Collaborate with Ethereum and be active in the Ethereum engineering forums.

Skills:

Knowledge of Hardhat:
Compilation, unit testing, deployment
Mainnet-fork tests, scripting and snapshoting
Work with addons and plugins (coverage, gas-reporter, flattener, etc)
Work with alternative framework: Brownie or Foundry
Work with RPC providers (Infura, Alchemy, Moralis)
Work with NFT and metadata storage
Free usage of ethers and web3
Understanding of ERC20, ERC721, ERC1155, ERC666, EIP721, EIP2612
Work with Merkle trees and Merkle proofs
Understanding of storage structure, proxy contracts and principles of upgradeable contracts.
Work with DeFi: Uniswap, Compound, Aave, Curve, Yearn (direct interaction and/or integration)
Core contracts architectures: tokensale, vesting (linear MasterChief and epochs staking), liquidity pools, vaults
Understanding of best practices for secure development (standard vulnerabilities and security tools)
Basic understanding of the EVM principles of work and Eth node structure

Blockchain Developer

Location:

Skillweb - Ukrainian company, based in the Czech Republic. We are a small team of about 15 developers, and we are growing fast! Our expertise: game and blockchain.

We are looking for a Blockchain developer who is able to work on our project from scratch.

Responsibilities:

Code creation (with full unit-tests coverage and documentation)

Preparation of the contracts architecture

Consultation of backend and frontend teams for correct contract calls (correct ABI usage, smart contract flows, consultations for Subgraph and APIs creation)

Code review (within the project and cross-review at other projects)

Research for protocol integration points and research for target protocols used in the system

Work with RPC providers, NFT metadata, decentralized storage

Periphery JS scripting and snapshoting based on ethers and web3

Contribute high-quality and well-tested Solidity code, including smart contract development.

Reviewing and auditing (internally) developed smart contracts by other teams.

Implementing and executing comprehensive unit, integration, and fuzzy testing.

Contributing to the requirements drafting/analysis.

Assisting in maintaining the product's CI/CD pipeline.

Communication and collaboration with a fully distributed team.

Collaborate with Ethereum and be active in the Ethereum engineering forums.

Skills:

Knowledge of Hardhat:

Compilation, unit testing, deployment

Mainnet-fork tests, scripting and snapshoting

Work with addons and plugins (coverage, gas-reporter, flattener, etc)

Work with alternative framework: Brownie or Foundry

Work with RPC providers (Infura, Alchemy, Moralis)

Work with NFT and metadata storage

Free usage of ethers and web3

Understanding of ERC20, ERC721, ERC1155, ERC666, EIP721, EIP2612

Work with Merkle trees and Merkle proofs

Understanding of storage structure, proxy contracts and principles of upgradeable contracts.

Work with DeFi: Uniswap, Compound, Aave, Curve, Yearn (direct interaction and/or integration)

Core contracts architectures: tokensale, vesting (linear MasterChief and epochs staking), liquidity pools, vaults

Understanding of best practices for secure development (standard vulnerabilities and security tools)

Basic understanding of the EVM principles of work and Eth node structure

As a plus:

Fuzzy-testnig

Dune analytics

Subgraph

Hiring process:

1. Introduction call with Recruitment Partner

2. Cultural fit Interview with COO

3. Test task