| Job Position | Company | Posted | Location | Salary | Tags |
|---|---|---|---|---|---|
Adoriasoft | United States | $72k - $100k | |||
Musicow | Los Angeles, CA, United States | $95k - $105k | |||
Hiro Systems | Remote | $105k - $165k | |||
OKX | Hong Kong, Hong Kong | $54k - $70k | |||
| Learn job-ready web3 skills on your schedule with 1-on-1 support & get a job, or your money back. | | by Metana Bootcamp Info | |||
Keyfactor | Barcelona, Spain |
| |||
Moonsong Labs | Madrid, Spain | $45k - $72k | |||
Monad | New York, NY, United States | $125k - $200k | |||
Binance | Singapore, Singapore |
| |||
Obol | New York, NY, United States |
| |||
Obol | New York, NY, United States |
| |||
Status | Remote | $90k - $110k | |||
Obol | Lisbon, Portugal |
| |||
Obol | Lisbon, Portugal |
| |||
OKX | San Jose, CA, United States | $144k - $216k | |||
Offchain Labs | Remote | $67k - $75k |
We’re PrimexLabs OU, a team of top-notch blockchain developers, mathematicians, scientists, and DeFi experts.
Now we’re developing Primex Finance — the new prime brokerage liquidity protocol for DEX-agnostic, cross-margin trading with trader scoring mechanisms. With Primex, lenders provide liquidity to pools where traders then use it for leveraged trading. This gives lenders the opportunity to earn higher yields compared to lending protocols, as the interest is generated from margin fees and profits of successful trades.
The project will be launched on a few EVM chains including ETH L2s. We’re working with some of the top VCs in the space, including Stratos Technologies, Coinfund, Hypersphere, Wintermute, GSR, and others.
We are currently in the public beta phase, which is available for testing on the Goerli network. Our team is around fifty people with experience since 2016 in blockchain solutions. However, we are looking for a part-time participation experienced solidity developer who is not limited by our internal approaches to consult on the architecture of our product, identify vulnerabilities, optimize gas usage, etc. We are interested in receiving alternative viewpoints and critical assessments of the protocol, so we welcome opponents who can bring new ideas and vision. We are not looking for auditors, but we will appreciate advice on improving our product. And yes, we’re not going to poach you from your current company, we need an external rock star to aid us to create a safe and reliable product. Hence, check the details below and feel free to reach out.
Requirements
- 3+ years of experience in Solidity development
- Good knowledge of Truffle, Open Zeppelin, and Hardhat frameworks
- Understanding of DeFi mechanisms and building blocks, including liquidity pools, AMMs, and bonding curves
- Experience with DeFi protocols
- Deep understanding of ERC-20, ERC- 721, and ERC-1155
- Good skills in smart contracts development and resolving security vulnerabilities
- Experience optimizing gas
- English – Upper-intermediate or higher
Nice to haves:
- Experience with L2 protocols and sidechains (optimistic and ZK rollups)
- Experience with Polkadot.js and Substrate
- Development experience with JavaScript and TypeScript
- A degree in computer science or a relevant field, or comparable experience
- Experience with Ethereum testing tools, e.g. Truffle, Embark, HardHat, etc
- Experience writing automation tests
- Understanding of Uniswap, SushiSwap, Aave, Compound
- Experience auditing smart contracts
Responsibilities:
- Review, test, and optimize the existing architect
- Research and integrate with existing DeFi/DEX/NFT protocols
- Review a Solidity code, following the latest design and development patterns
- Write documentation
- Research, design, scope, and estimate what you need to do
- Collaborate with the UI team
What is the meaning of Layer 2?
Layer 2 in the context of cryptocurrency and blockchain technology refers to a secondary framework or protocol that is built on top of an existing blockchain system (the main chain or Layer 1)
The primary purpose of Layer 2 solutions is to solve the scalability and speed issues that many blockchains face, especially those that have become popular and heavily used, like Ethereum
Here are the key aspects of Layer 2 solutions:
- Scalability Enhancement: They help in scaling the main blockchain by handling transactions off the main chain. This reduces the burden on the main chain, allowing for faster and cheaper transactions.
- Types of Layer 2 Solutions: There are various forms of Layer 2 solutions, including state channels, sidechains, plasma chains, and rollups. Each has its own mechanism for interacting with the main chain and handling transactions.
- State Channels: These involve two parties engaging in numerous transactions outside of the main chain, which are then consolidated into a single transaction. This is especially useful for situations where multiple transactions occur between the same parties.
- Sidechains: These are separate blockchains that are connected to the main chain via a two-way peg. They operate independently and can have their own consensus mechanisms but are secured by the main chain.
- Plasma Chains: Plasma chains are similar to sidechains but with a more hierarchical structure. They report back to the main chain regularly and are optimized for mass transaction handling.
- Rollups: Rollups process and store transaction data on a sidechain but post transaction data to the main chain. They come in two varieties: optimistic rollups and zk-rollups, each with its own method of transaction verification.
- Security Considerations: While Layer 2 solutions are generally secure, they can have different security models compared to the main chain. This is an important consideration for users and developers.
- Impact on User Experience: For end-users, Layer 2 solutions can greatly improve the experience by reducing transaction fees and increasing transaction speeds.
- Adoption and Development: Many blockchain projects are actively developing Layer 2 solutions to enhance their networks. This is an ongoing area of innovation in the blockchain space.