Job Description
Job DescriptionDescription:
Hybrid 4 days on site in New York, NY
Our client is building secure and scalable infrastructure for institutional digital finance. The team focuses on security engineering, cryptography, blockchain, and research-backed engineering that bridges theory and practice. The Security Engineer will collaborate with cryptographers to design and implement a high-security, resilient crypto and tokenized assets custody solution, integrating secure protocols, MPC frameworks, and blockchain networks.
We can facilitate w2 and corp-to-corp consultants. 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: $88.00 to $94.00/hr. w2
JN -072026-107749
Responsibilities:
- Design and implement secure software and cryptography engineering for custody solutions.
- Collaborate with cryptographers to build secure and resilient MPC-based signing and key management workflows.
- Apply secure coding practices in C/C++, Go, or Rust with attention to side-channel and related attack resistance.
- Audit and integrate cryptographic libraries such as OpenSSL and MPC-specific libraries.
- Leverage hardware security features including Intel SGX, HSMs, and remote attestation.
- Develop and review threat models covering network and application attack vectors.
- Conduct crypto-focused code reviews and design tests for potential vulnerabilities.
- Integrate with blockchain nodes and APIs to assemble, sign, and broadcast transactions across networks.
- Handle blockchain transaction formats including Bitcoin UTXOs and Ethereum RLP.
- Implement secure storage patterns for encrypted key shares and audit logs.
- Build reliable networking and concurrency controls for communication among signing parties.
- Apply cloud security best practices and containerization for deployment.
Experience Requirements:
- Expertise in secure software development and cryptography engineering.
- Proficiency in C/C++, Go, or Rust and secure coding practices.
- Hands-on use or audit of cryptographic libraries such as OpenSSL or MPC-specific libraries.
- Familiarity with Intel SGX, HSMs, and remote attestation.
- Experience with MPC or cryptographic frameworks used for crypto custody.
- Strong threat modeling capabilities and mitigation planning.
- Experience implementing or auditing cryptographic protocols such as key exchange or signature schemes.
- Knowledge of pitfalls including weak randomness and error handling that leaks information.
- Experience integrating with blockchain nodes and APIs.
- Understanding of Bitcoin UTXOs, Ethereum RLP, and transaction parsing and creation.
- Knowledge of secure storage and databases.
- Familiarity with cloud security and containerization.
Education Requirements:
- Bachelor's degree.
Recruitment Transparency Notice Eliassen Group values transparency in our recruitment practices. Please be advised that Eliassen Group utilizes artificial intelligence (AI) tools as part of its initial application screening and hiring process. You may receive email and SMS notifications from the Eliassen Virtual Recruiting Team (noreply@eliassen.com, 781-808-2924) inviting you to complete a brief voice screening as part of your application process. These tools assist our hiring teams in different ways, including but not limited to, assistance in reviewing application materials to help identify candidates whose qualifications most closely match the requirements of the position. All AI-assisted evaluations and responses are reviewed by human recruiters before any hiring decisions are made. The use of AI in our process is intended to support fairness, efficiency, and consistency, and Eliassen Group takes measures to prevent bias or discrimination in connection with its hiring practices. By proceeding, you acknowledge, agree, and consent to Eliassen Group’s use of these tools, including AI tools, as part of the application and hiring process.
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.
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About Eliassen Group: 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. Eliassen is committed to building a diverse and inclusive team from a variety of backgrounds, perspectives, and skills. We are an Equal Opportunity and Affirmative Action Employer and all employment decisions are based on merit, performance, and business needs. Eliassen does not discriminate on the basis of race, color, gender identity or expression, sexual preference or orientation, sex (including pregnancy, childbirth, and related medical conditions), marital status, creed, religion, physical or mental disability, genetic information, military or veteran status, age, ancestry, national origin, citizenship status, prohibited criminal record inquiries of applicants and employees, or any other category protected by federal, state, or local laws. Don’t miss out on our referral program! If we hire a candidate that you refer us to then you can be eligible for a $1,000 referral check!