Digital Asset Security: Custody/Sub Custody at U.S. Bank · San…

Digital Asset Security: Custody/Sub Custody Location: San Francisco, CA At U.S. Bank, we’re on a journey to do our best. Helping the customers and businesses we serve to make better and smarter financial decisions and enabling the communities we support to grow and succeed.  We believe it takes all of us to bring our shared ambition to life, and each person is unique in their potential. A career with U.S. Bank gives you a wide, ever-growing range of opportunities to discover what makes you thrive at every stage of your career. Try new things, learn new skills and discover what you excel at—all from Day One. Job Description U.S. Bank is seeking a Digital Asset Security: Custodial/Sub Custodial Engineer with demonstrated competence and experience in blockchain Custodial and Sub-Custodial security to contribute toward the success of our Digital Assets Information security program. In this role, you will represent Information Security Services (ISS) and partner with business, innovation, and technology teams to spearhead the design and engineering of Information security controls and guardrails for Secure Multi-Party Computation (MPC), Multi-Party Signatures, ZKP and related algorithms, protocols, schemes etc., for secure Custody / Sub-Custody of Digital Assets, Cryptocurrencies, Stable Coins and Tokens. This role requires strong technical knowledge of Shamir’s Secret Sharing (SSS), ZKP, ECDSA/EdDSA TSS algorithms and protocols. In-depth knowledge of at least one of the mainstream Multi-Party Computation protocols (e.g., Gągol-Kula-Straszak-Świętek , Lindell-Nof-Ranellucci, Canetti-Makriyannis-Peled, Damgard-Jakobsen-Nielsen-Illeborg-Pagter-Østergaard’ or Doerner-Kondi-Lee-shelat). Work closely with innovation, technology, and business teams involved with Custodial and Sub-Custodial initiatives and parties designing and engineering U.S. Bank Digital Asset Custody eco-system to formulate Information Security controls and guardrails for: Computation Complexity – to ensure security of the authentication and authorization of custody transactions. Round Complexity – to secure the sequence order of the crypto transactions (constant vs. variable). Communication Complexity - to secure protocols during the transaction (synchronous vs. asynchronous approval schemes). Lead secure design and engineering practices for Hierarchical Deterministic (HD) Wallets, Key Storage (Cold, Warm and Hot), Key Distribution aspects for Hardened and Non-Hardened Child Keys and associated ECDSA/EdDSA Threshold Signature Schemes for: Quorum Approval Thresholds - minimum number of parties needed to decrypt the cipher text to generate the signature. Key Share Regeneration: number of parties required for private key share generation from key shards. Counter Party Threshold: number of corrupt parties to sustain secure operations (Honest vs. Dishonest/Corrupt). Partner with Information Security Services teams to develop Informationsecurity frameworks and guidelines for addressing various Custody and Sub-custody requirements and help guide and support on routine basis. Basic qualifications: 2+ years of hands-on Secure Multi-Party Computation design or engineering experience for the security of Hierachircal Deterministic (HD) Wallets at a financial institution with a vendor solution (e.g., Fire Blocks, IBM DA Haven, Metaco, Gnosis Safe or Grainte). College degree(s) or equivalent industry experience ​Preferred Skills/Experience: This role requires strong technical knowledge of Shamir’s Secret Sharing (SSS), ZKP, ECDSA/EdDSA TSS algorithms and protocols. In-depth knowledge of at least one of the mainstream Multi-Party Computation protocols (e.g., Gągol-Kula-Straszak-Świętek , Lindell-Nof-Ranellucci, Canetti-Makriyannis-Peled, Damgard-Jakobsen-Nielsen-Illeborg-Pagter-Østergaard’ or Doerner-Kondi-Lee-shelat). Work closely with innovation, technology, and business teams involved with Custodial and Sub-Custodial initiatives and parties designing and engineering U.S. Bank Digital Asset Custody eco-system to formulate Information Security controls and guardrails for: Computation Complexity – to ensure security of the authentication and authorization of custody transactions. Round Complexity – to secure the sequence order of the crypto transactions (constant vs. variable). Communication Complexity - to secure protocols during the transaction (synchronous vs. asynchronous approval schemes). Lead secure design and engineering practices for Hierarchical Deterministic (HD) Wallets, Key Storage (Cold, Warm and Hot), Key Distribution aspects for Hardened and Non-Hardened Child Keys and associated ECDSA/EdDSA Threshold Signature Schemes for: Quorum Approval Thresholds - minimum number of parties needed to decrypt the cipher text to generate the signature. Key Share Regeneration: number of parties required for private key share generation from key shards. Counter Party Threshold: number of corrupt parties to sustain secure operations (Honest vs. Dishonest/Corrupt). Partner with Information Security Services teams to develop Informationsecurity frameworks and guidelines for addressing various Custody and Sub-custody requirements and help guide and support on routine basis. 2+ years of hands-on Secure Multi-Party Computation design or engineering experience for the security of Hierachircal Deterministic (HD) Wallets at a financial institution with a vendor solution (e.g., Fire Blocks, IBM DA Haven, Metaco, Gnosis Safe or Grainte). M.S. or PhD degree in Computer Science, Mathematics or related field. This role requires working from a U.S. Bank location three (3) or more days per week. If there’s anything we can do to accommodate a disability during any portion of the application or hiring process, please refer to our disability accommodations for applicants. Benefits: Our approach to benefits and total rewards considers our team members’ whole selves and what may be needed to thrive in and outside work. That's why our benefits are designed to help you and your family boost your health, protect your financial security and give you peace of mind. Our benefits include the following: Healthcare (medical, dental, vision) Basic term and optional term life insurance Short-term and long-term disability Pregnancy disability and parental leave 401(k) and employer-funded retirement plan Paid vacation (from two to five weeks depending on salary grade and tenure) Up to 11 paid holiday opportunities Adoption assistance Sick and Safe Leave accruals of one hour for every 30 worked, up to 80 hours per calendar year unless otherwise provided by law Review our full benefits available by employment status here. U.S. Bank is an equal opportunity employer. We consider all qualified applicants without regard to race, religion, color, sex, national origin, age, sexual orientation, gender identity, disability or veteran status, and other factors protected under applicable law. E-Verify U.S. Bank participates in the U.S. Department of Homeland Security E-Verify program in all facilities located in the United States and certain U.S. territories. The E-Verify program is an Internet-based employment eligibility verification system operated by the U.S. Citizenship and Immigration Services. Learn more about the E-Verify program. The salary range reflects figures based on the primary location, which is listed first. The actual range for the role may differ based on the location of the role. In addition to salary, U.S. Bank offers a comprehensive benefits package, including incentive and recognition programs, equity stock purchase 401(k) contribution and pension (all benefits are subject to eligibility requirements). Pay Range: $148,495.00 - $174,700.00 U.S. Bank will consider qualified applicants with arrest or conviction records for employment. U.S. Bank conducts background checks consistent with applicable local laws, including the Los Angeles County Fair Chance Ordinance and the California Fair Chance Act as well as the San Francisco Fair Chance Ordinance. U.S. Bank is subject to, and conducts background checks consistent with the requirements of Section 19 of the Federal Deposit Insurance Act (FDIA). In addition, certain positions may also be subject to the requirements of FINRA, NMLS registration, Reg Z, Reg G, OFAC, the NFA, the FCPA, the Bank Secrecy Act, the SAFE Act, and/or federal guidelines applicable to an agreement, such as those related to ethics, safety, or operational procedures. Applicants must be able to comply with U.S. Bank policies and procedures including the Code of Ethics and Business Conduct and related workplace conduct and safety policies. Posting may be closed earlier due to high volume of applicants.