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Engineering Blockchain developer

2 jobs found

XION
Jun 28, 2025  
ZK Integrations Engineer
$125,000 - $175,000 yearly
We are looking to hire a permanent internal ZK/MPC/FHE/experimental cryptography engineer, to help us create consumer applications and examples using modern, bleeding edge cryptographic tooling. Examples of work this position would tackle: * Help us complete our zkEmail authentication mechanism * Spearhead zkJWT as an additional authentication mechanism * Convert zkShuffle verification contracts and front-end sdk to be usable with our VM and client SDKs * Create example applications utilizing zkPassport, zkTLS, zkFetch, zkShuffle, etc * Work with the protocol team to optimize performance and usability of verification modules/contracts for common/popular proving systems (groth16, halo2, etc) * Work with the DevRel team to help document and polish tooling for large scale dev use * Liaise and work directly with some of the top teams in the space Desired Experience: * Professional competence with common blockchain languages, such as Javascript/Typescript,...
XION Full time
O1Labs
May 20, 2025  
Crypto Research Intern
o1Labs’ vision is to create an internet where developers use programmable cryptography to create more powerful applications. We have successfully incubated the Mina Protocol and are now in the next stage of our journey as the world’s premier zero-knowledge tooling provider.  We are looking for a talented and motivated cryptography research intern with experience in Zero-Knowledge Proofs technology to join our team at o1Labs. The intern will collaborate on our new Project, Untitled, a federated storage solution that combines the authentication guarantees of data availability protocols with the performance of Web2 storage.  This is a chance to join a small, collaborative team and gain independence while working on fascinating problems in software engineering, systems design, cryptography, and computing.    Responsibilities You will contribute to one or more of the following research and engineering areas: Collaborate with cryptography researchers and engineers on...
O1Labs Intern
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