Jun 28, 2025

ZK Integrations Engineer

$125,000 - $175,000 yearly
  • XION
Full time Back-end development Blockchain developer Cryptography Engineering Front-end development

Job Description

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, Solidity, Rust, Golang, etc.

* Direct hands on experience with popular ZK tool-kits, such as Circom, RiscZero, SP1, Noir, etc.

* Experience working with new, unpolished tools and codebases

* Experience delivering greenfield, minimally spec'd apps to minimal usage state

* Experience building applications for and receiving feedback from end users

Desired Traits:

* A taste for glass, pushing the limits of modern cryptography

* A consumer oriented drive. A desire to see your work in the hands of the masses

* A creative mindset, coming up with interesting, unexpected use cases for cryptographic tooling

* Enthusiastic, self-driven working style. The team is fully remote, and often work is async

* Autonomous, independent engineering personality. 

What we provide:

* The largest consumer userbase in crypto 

* Marketing, design, and product resources

* Access to brands and products in the web2 space for product collaboration and partnership

* Competitive compensation, industry notoriety

* Substantial impact on product direction


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