Senior Cryptography Engineer (Remote) MPC Custody

Eliassen Group; Montpelier (VT); Remote; USD 117,000 - 129,000; Full time

Job summary

Our client, Eliassen Group, is seeking a Sr. Engineer in cryptography to design secure software components for a crypto custody wallet using MPC. The role emphasizes threat modeling, secure coding, and integration with cryptographic libraries and hardware security features.

Remote contract position offering competitive W2 hourly rates; experience with Rust, Go, C/C++, and OpenSSL is essential for building scalable and secure tokenized assets infrastructure.

Qualifications

• Expertise in secure software development and cryptography engineering.
• Proficiency in Rust, Go, or C/C++ and secure coding against attacks.
• Hands-on experience with cryptographic protocols and key exchange.
• Familiarity with OpenSSL and hardware security features like SGX/HSMs.

Responsibilities

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

Skills

Rust

Go

C/C++

Secure coding

OpenSSL

MPC libraries

Intel SGX

HSMs

Blockchain

Education

Bachelor's degree

Job description

Our client, Eliassen Group, is seeking a Sr. Engineer in cryptography to design secure software components for a crypto custody wallet using MPC. The role emphasizes threat modeling, secure coding, and integration with cryptographic libraries and hardware security features.

Remote contract position offering competitive W2 hourly rates; experience with Rust, Go, C/C++, and OpenSSL is essential for building scalable and secure tokenized assets infrastructure.