About Cryptape
Cryptape is a pioneering team in the blockchain space, leading the development of Nervos CKB (Common Knowledge Base) — a high-performance, scalable Layer 1 blockchain protocol. We are committed to pushing the boundaries of decentralized systems through rigorous engineering and open collaboration. If you're passionate about low-level technical challenges and building future-facing infrastructure, we invite you to join the CKB engineering team at Cryptape.
As a member of the CKB engineering team, you’ll contribute to core system development, such as network protocol optimization (Fiber), virtual machines (CKB-VM), and smart contract tooling on CKB. We welcome engineers from diverse backgrounds — embedded systems, algorithm optimization, multimedia codecs, CPU architecture, and beyond. Prior blockchain experience is not required, but a strong interest in systems programming and a willingness to learn are essential.
Responsibilities
- Develop and implement core functionalities of the Nervos CKB protocol.Write and optimize smart contracts in Rust, leveraging CKB’s unique Cell model for flexible state management.Optimize low-level code performance, focusing on resource efficiency and execution in constrained environments.Collaborate with the global open-source developer community to evolve the CKB ecosystem.Write clean, maintainable code and participate in high-standard code reviews.Explore and implement cutting-edge technologies in the blockchain space.
Requirements
- Strong grasp of computer science fundamentals.Proficiency in at least one systems programming language (e.g., Rust, C, C++).Solid experience in low-level development in one or more of the following areas:
- Embedded systems or resource-constrained environmentsAlgorithm design and performance optimizationMultimedia codec or high-performance data processingCPU instruction set development or related system-level optimization
Nice to Have
- Familiarity with the RISC-V instruction set, or experience with virtual machine/simulator development.Contributions to open-source projects (e.g., GitHub PRs, library maintenance).Knowledge of cryptographic algorithms (e.g., Secp256k1, SHA-256) or secure coding practices.Strong English reading and writing skills.
Why Join Us
- Hardcore Challenges: Tackle complex problems in virtual machines, networking, and decentralized systems, leveraging your low-level expertise.Global Impact: Build code that powers a leading Layer 1 blockchain, shaping the future of decentralized applications.Learn and Grow: Work with world-class engineers and access resources to master blockchain and CKB development.Fully Remote: Enjoy flexible, remote work with a globally distributed team.Open-Source Culture: Amplify your impact through contributions to Nervos CKB’s open-source ecosystem.
How to Apply
Ready to push the boundaries of systems programming? Send the following to join@cryptape.com:
- Your resume.A link to your GitHub or portfolio showcasing relevant low-level projects.Optional: A brief note on why you’re excited about low-level development and learning blockchain technology.
Learn More:
- Nervos CKB GitHub: https://github.com/nervosnetworkCryptape Blog: https://blog.cryptape.com/Nervos Documentation: https://docs.nervos.org/
