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3FA | Remote | $70k - $170k | |||
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3FA
$70k - $170k
This job is closed
Description
3FA is building a new vertical in e-commerce through secure product identification. We work with top brands and marketplaces to source smart-contract enabled Near Field Communication (NFC) tags. Our IDs enable physical goods to inherit the non-fungibility, composability, and programability of NFTs, powering the next generation of the creator economy.
We are looking for an extremely talented founding engineer to help us pioneer this layer of secure commerce. Top notch communication skills are essential. Familiarity with hardware is helpful, but not neccesary.
Requirements
- 4+ years of experience in software development, with a strong emphasis on prototyping and new product development
- 2+ years of smart contract development in Solidity on Ethereum or any EVM-based chainÂ
- Strong working knowledge of asymmetric cryptography, authentication and/or digital signatures
- Demonstrated expertise in at least one modern programming language (C++, Rust, Go, Python, JS)
- Proven experience in designing and implementing scalable and complex software architecture
- Comfort with ambiguity and an ability to make progress independently
- A passion for staying up-to-date with and learn about emerging technologies, trends, and best practices in blockchain
Nice to Haves
- Familiarity with zK-Proofs, rollups, L2/L3s and data sampling
- General understanding of various decentralized blockchains (Cosmos, Aptos, Sui, Starkware, Aztec) including the differences between each
- M.S., or PhD in Computer Science, Cryptography, Computer Engineering, or the equivalent
Benefits
- Joining a talented, diverse and driven team
- Meaningful equity ownership
- Guidance from leaders and experts in commerce, compliance, and wallet integration
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"The best way to predict the future is to invent it."
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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.