Applied Cryptography Engineer
Kamu provides an open-source protocol, the Open Data Fabric (ODF), and a suite of tools for decentralized data exchange and transformation.
Maintainer signals as of 9/2/2026
About Kamu Data Inc.
Kamu is building a decentralized data processing network based on its Open Data Fabric (ODF) protocol, designed for the decentralized exchange and transformation of semi-structured data. It treats data as dynamic streams with a complete, immutable history, enabling verifiable trust and data provenance through a 'Data-as-Code' approach using a novel stream-processing SQL. This creates auditable and autonomous data pipelines, allowing organizations to build data supply chains similar to open-source software development. The Kamu ecosystem includes a command-line interface (CLI) for data management, a scalable Node for operating data pipelines, and a Web Platform to explore the data network. The project's technology and protocols are developed openly with community-governed specifications to foster collaboration and interoperability.
Skills
About the Role
You will work hands-on on core data formats and protocols that support decentralized storage, verifiable processing, and secure data access. You will research and prototype security features, develop cryptographic protocols and smart contracts, integrate identity and key-management solutions, advise on security-related designs, and contribute to technical specifications, documentation, and testing.
Requirements
- Bachelor’s degree in cryptography mathematics computer science or a related field
- 4+ years of industry experience
- Experience implementing cryptographic protocols in Rust Go C C++ or equivalent
- Strong understanding of PKI cryptographic protocols certificates key management and advanced key exchange
- Knowledge of OAuth and ABAC RBAC or ReBAC authorization architectures
- Knowledge of blockchain architecture indexers and oracles
- Knowledge of software quality test pyramids CI/CD fuzzing and formal verification
- Open-source cryptography contributions or security research preferred
- Knowledge of decentralized identity and permission systems preferred
- Experience with zero-knowledge proofs SNARKs STARKs or homomorphic encryption preferred
- Trusted Execution Environment experience preferred
- Knowledge of blockchain and smart contract security preferred
- Knowledge of SQL data analytics and Pandas or R preferred
- Docker AWS and Kubernetes experience preferred
- Familiarity with security standards and compliance frameworks preferred
- Strong problem-solving skills and product orientation
- Good written English and ability to write clear documentation
Responsibilities
- Evolve data formats and protocols for granular encryption and PKI-based access control
- Develop smart contracts for decentralized identity and permission management
- Integrate identity and key-management solutions into CLI and server products
- Design and assist with batch query proofs verifier nodes and data-stream attestations
- Apply verifiable computing techniques to stream processing
- Develop privacy-preserving processing approaches using federated systems TEEs and homomorphic encryption
- Monitor security standards and propose interoperability approaches
- Communicate progress to users and the community
- Contribute to documentation and automated testing
Benefits
- Remote work with flexible hours
- Equity compensation
- $1,500 home office equipment stipend
- 21 days of paid vacation per year
- Conference travel and education budget
- Home office equipment support for Ukrainian applicants
- Relocation support for Ukrainian applicants
