Remote Senior Cryptography Engineer: Secure Custody & MPC

Eliassen Group; Indianapolis (IN); Remote; USD 117,000 - 129,000; Full time

Benefits offered by this job

Medical

Dental

Vision

401k with match

Life insurance

Job summary

Eliassen Group is seeking a Sr. Engineer in Cryptography Engineering for a remote, contract role focused on building secure crypto custody infrastructure leveraging MPC, secure enclaves, and robust backend services.

The team works on crypto and tokenized assets custody solutions with emphasis on security engineering, blockchain integration, and research-backed engineering. W2 benefits and flexible arrangements are described.

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, key exchange, or signature schemes.
• Familiarity with entropy quality and safe error handling.

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

Rust

Go

C/C++

Cryptography engineering

Secure software development

Threat modeling

Education

Bachelor's degree

Tools

OpenSSL

MPC libraries

Intel SGX

HSMs

Job description

Eliassen Group is seeking a Sr. Engineer in Cryptography Engineering for a remote, contract role focused on building secure crypto custody infrastructure leveraging MPC, secure enclaves, and robust backend services.

The team works on crypto and tokenized assets custody solutions with emphasis on security engineering, blockchain integration, and research-backed engineering. W2 benefits and flexible arrangements are described.