**About Catalog**

We are a blockchain R&D studio, driven by our commitment to bridging (pun intended) the divide between foundational blockchains like Bitcoin and the thriving DeFi ecosystem. Our core expertise lies in solving intricate blockchain challenges through rigorous research in the realms of cryptography, game theory, and protocol design.

Our mission is to make web3 simple and hassle-free for everyone. No intimidating complexities, just pure potential. We began our journey in 2022, with a previous experience of building two billion-dollar web3 projects, Ren and Rook under our belt.

Our flagship product is the [Catalog Wallet](https://www.catalog.fi/), a unique implementation of a multichain wallet that lets you use native bitcoin directly on any DApp. We also help power web3 projects like [Garden](https://garden.finance/) to become cross-chain seamlessly.

**Role Description**

As a Blockchain Developer, you will be responsible for solving complex blockchain challenges through research in cryptography, game theory, and protocol design. The ideal candidate will have a strong background in blockchain technologies, smart contracts, specifically in Bitcoin, Rust language and Anchor Framework. You will be responsible for developing and maintaining decentralised exchange (DEX) platforms, ensuring the highest standards of security, performance, and reliability.

**Responsibilities:**

• Design and develop blockchain-based systems and applications.
• Implement and deploy smart contracts.
• Develop and maintain decentralised applications (DApps).
• Collaborate with cross-functional teams to define, design, and ship new features.
• Conduct research and analysis on blockchain protocols, consensus mechanisms, and related technologies.
• Ensure the performance, quality, and responsiveness of applications.

**Qualifications & Skills Required:**

• Proven experience as a Blockchain Developer or similar role.
• Strong experience with blockchain technology, including Bitcoin, Ethereum,or other blockchain frameworks.
• Experience with smart contract development and deployment.
• Understanding of cryptography and security principles.
• Proficiency in programming languages such as Go, Rust, Solidity, JavaScript or Python

Bonus if:

• You’ve done Blockchain Protocol Development
• You’ve contributed to Open Source Projects
• You’re proficient in implementing System Architecture and Design (preferable uncle bob's clean architecture)