The Nym team is a world-class mix of privacy experts, engineers, and thinkers spread across Europe. We believe that user privacy underpins democratic freedoms in a networked world, and we're proud to help roll back the surveillance society.
Nym is looking for a skilled Rust Engineer with strong open-source exposure to join our Core Development Team, focusing on smart contracts, post-quantum secure networking, and cryptographic systems. This is a key engineering role in a world-class team working on the cutting edge of privacy tech, decentralized networking, and blockchain infrastructure.
In Your First Month, You Might:
* Get up to speed with post-quantum security developments at Nym.
* Write CosmWASM smart contracts.
* Optimize performance of network tunnel devices in the Nym mixnet to route IP traffic efficiently.
* Work on Cosmos L1 → L2 migration strategies and integrations with chains like Sui and Walrus.
Key Responsibilities:
* Build and maintain advanced privacy-preserving network infrastructure.
* Develop and audit cryptographic systems, especially around zk-credentials and e-cash.
* Develop smart contracts for decentralized systems, including CosmWASM and blockchain-specific integrations.
* Support integrations with wallets, explorers, and external systems.
* Contribute to browser-ready WebAssembly components.
* Champion post-quantum secure implementations across the stack.
Must Have:
* 5+ years in back-end or systems-level engineering.
* Proficiency in Rust, with strong experience in async programming (e.g., Tokio).
* Deep knowledge of networking and cryptography.
* Experience building or scaling distributed systems.
* Comfort with cryptographic libraries and protocols.
Great to have:
* Experience with Cosmos, CosmWASM, and blockchain migrations (e.g., L1 to L2).
* Familiarity with EVM, blockchain wallets, and smart contract ecosystems.
* Contributions to open-source cryptography or privacy tech projects.
What we offer you:
* A diverse, global team of 50+, interested in learning and solving problems together.
* 6 Weeks annual leave plus national holidays.
* Yearly learning and development allowance.
* IT hardware package tailored to your role.
* Remote working (with a bias towards being able to do in-person meetups periodically).
* A competitive salary.
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