Senior Cryptography Engineer - Remote Contract

Eliassen Group; Lansing (MI); Remote; USD 117,000 - 129,000; Part time

Job summary

Eliassen Group seeks a Sr. Engineer in Cryptography Engineering for a remote, contract role. Work on secure crypto custody infra leveraging MPC, secure enclaves, and robust back-end services.

You will design and implement cryptographic components, review libraries, and ensure secure storage and deployment across cloud environments. Requires strong cryptography, Rust/Go/C++ skills, and experience with SGX/HSMs.

Qualifications

• Expertise in secure software development and cryptography engineering.
• Proficiency in Rust, Go, or C/C++ and secure coding against known classes of attacks.
• Hands-on experience with cryptographic protocols, key exchange, or signature schemes.

Responsibilities

• Design and implement secure software components for a crypto custody wallet based on MPC.
• Apply threat modeling to anticipate and mitigate attack vectors including side-channel and MITM during MPC rounds.
• Implement and review cryptographic code in Rust, Go, or C/C++ with secure coding practices.
• Audit and integrate cryptographic libraries such as OpenSSL and MPC-specific frameworks.
• Leverage hardware security features including Intel SGX and HSMs, including remote attestation.
• Integrate with blockchain nodes and APIs to assemble and broadcast transactions across networks.
• Parse and construct blockchain transactions, including Bitcoin UTXOs and Ethereum RLP.
• Design secure storage for encrypted key shares and audit logs, and implement robust database practices.
• Build reliable networking, RPC, and concurrency controls for orchestrating multi-party signing.
• Contribute to cloud security and containerized deployments to avoid misconfigurations.

Skills

Cryptography

Rust

Go

C/C++

Secure coding

Threat modeling

OpenSSL

MPC

SGX

Blockchain

Remote collaboration

Education

Bachelor's degree

Tools

OpenSSL

MPC libraries

Intel SGX

HSMs

Remote attestation

Rust toolchain

Go toolchain

Blockchain nodes

Job description

Eliassen Group seeks a Sr. Engineer in Cryptography Engineering for a remote, contract role. Work on secure crypto custody infra leveraging MPC, secure enclaves, and robust back-end services.

You will design and implement cryptographic components, review libraries, and ensure secure storage and deployment across cloud environments. Requires strong cryptography, Rust/Go/C++ skills, and experience with SGX/HSMs.