Remote Senior Cryptography Engineer—MPC & Custody

Eliassen Group; Hagåtña (GU); Remote; USD 243,560,000 - 269,348,000; Part time

Benefits offered by this job

Medical benefits

Dental benefits

Vision benefits

401(k) with company match

Life insurance

Job summary

Eliassen Group is seeking a Sr. Engineer, Cryptography Engineering for a remote contract role. You will design and implement secure software components for a crypto custody wallet, with focus on MPC, hardware security, and back-end services.

The position requires expertise in cryptography engineering and proficiency in Rust, Go, or C/C++. You will work with OpenSSL and MPC libraries, integrate with blockchain nodes, and apply secure coding practices in a cloud/containerized environment.

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.
• Experience with cryptographic libraries and hardware security features such as Intel SGX and HSMs.
• Background integrating blockchain nodes and APIs with the ability to parse and create transactions.

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

Secure software development

Cryptography engineering

Rust/Go/C/C++

Cryptographic protocols

OpenSSL/MPC libraries

Intel SGX/TEEs

Blockchain integration

Secure storage patterns

Cloud security

Containerization

Education

Bachelor's degree

Tools

OpenSSL

Job description

Eliassen Group is seeking a Sr. Engineer, Cryptography Engineering for a remote contract role. You will design and implement secure software components for a crypto custody wallet, with focus on MPC, hardware security, and back-end services.

The position requires expertise in cryptography engineering and proficiency in Rust, Go, or C/C++. You will work with OpenSSL and MPC libraries, integrate with blockchain nodes, and apply secure coding practices in a cloud/containerized environment.