Security Engineer

• Design and build highly secure, resilient infrastructure supporting cryptocurrency and tokenized asset custody solutions.
• Partner with cryptographers and security specialists to implement cryptographic protocols and security designs in production systems.
• Develop secure, production-grade software with a strong emphasis on Go (Golang).
• Work with Trusted Execution Environments such as AWS Nitro Enclaves or Intel SGX, including implementation of remote attestation.
• Implement and integrate cryptographic libraries and frameworks, including OpenSSL and MPC-related technologies.
• Work with hardware-backed security technologies such as TEEs and Hardware Security Modules (HSMs).
• Participate in threat modeling to identify and mitigate attack vectors, including risks associated with MPC communication, malicious clients, compromised infrastructure, and network-based attacks.
• Conduct security-focused code reviews and design tests to identify vulnerabilities and weaknesses in security-sensitive software.
• Apply cryptographic protocols such as key exchange and digital signature schemes within production applications.
• Integrate with blockchain nodes and APIs to support transaction construction, signing, and broadcasting across multiple networks.
• Work with blockchain transaction formats, including Bitcoin UTXOs and Ethereum transaction encoding and formats.
• Design secure mechanisms for storing sensitive information such as encrypted key shares, credentials, and audit logs.
• Build secure communication between distributed signing parties using networking, RPC frameworks, and concurrency.
• Apply cloud security and container security practices when deploying security-sensitive workloads.

• Strong background in hands-on security engineering and secure software development.
• Strong proficiency with Go (Golang) and experience building production-grade systems in Go.
• Experience with C/C++ or other systems-level languages is beneficial.
• Hands-on experience with Trusted Execution Environments (TEEs), particularly AWS Nitro Enclaves and/or Intel SGX.
• Practical experience implementing or working with remote attestation.
• Experience implementing applied cryptography or integrating cryptographic functionality into production applications.
• Experience using or auditing cryptographic libraries such as OpenSSL or MPC-specific libraries.
• Familiarity with Hardware Security Modules (HSMs) and hardware-backed security.
• Experience with MPC or related cryptographic frameworks used in digital asset custody solutions.
• Strong threat modeling skills and the ability to identify and mitigate potential attack vectors.
• Understanding of common cryptographic implementation risks, including random number generation, information leakage, insecure error handling, and implementation-level vulnerabilities.
• Experience integrating with blockchain nodes and APIs.
• Understanding of blockchain transaction formats and transaction signing workflows.
• Experience with secure data storage, encrypted secrets and key material, and audit logging.
• Strong networking, distributed systems, RPC, and concurrency skills.
• Understanding of cloud security and secure containerized deployments.

Our client seeks experienced, hands-on Security Engineers to implement secure, scalable infrastructure for institutional digital finance. This implementation-focused role emphasizes secure software development, applied cryptography, trusted execution environments, remote attestation, and distributed blockchain systems. The work will focus on production engineering, bridging security concepts with practical implementation, with a strong emphasis on Go.

Due to client requirements, applicants must be willing and able to work on a w2 basis. For our w2 consultants, we offer a great benefits package that includes Medical, Dental, and Vision benefits, 401k with company matching, and life insurance.

Rate: $90.00 to $100.00/hr. w2, Skills, experience, and other compensable factors will be considered when determining pay rate. The pay range provided in this posting reflects a W2 hourly rate; other employment options may be available that may result in pay outside of the provided range.

W2 employees of Eliassen Group who are regularly scheduled to work 30 or more hours per week are eligible for the following benefits: medical (choice of 3 plans), dental, vision, pre-tax accounts, other voluntary benefits including life and disability insurance, 401(k) with match, and sick time if required by law in the worked-in state/locality.

If anyone reaches out to you about an open position connected with Eliassen Group, please ensure that you are working directly with us by confirming the following:

· When you work with Eliassen Group, all email communication will come from an Eliassen.com address, never Gmail, Yahoo, etc.

Eliassen Group is a strategic consulting firm that helps organizations reach further and achieve more through our technology, business advisory, and life sciences solutions. For nearly 40 years, we have combined exceptional people, deep domain expertise, and intelligent capabilities to expand our clients’ capacity and accelerate meaningful outcomes. We are driven by a purpose to positively impact the lives of our employees, clients, consultants, and the communities we serve.