via Prowlremote.com
$120K - 180K a year
Develop and maintain cryptographic security software and tools supporting hardware key storage and secure digital asset management.
Requires strong experience in applied cryptography, hardware security modules, secure protocol design, and programming in Rust, Python, or C++ with 4+ years in software development focused on cryptography.
About the CompanyGemini is a global crypto and Web3 platform founded by Tyler Winklevoss and Cameron Winklevoss in 2014. Gemini offers a wide range of crypto products and services for individuals and institutions in over 70 countries.Crypto is about giving you greater choice, independence, and opportunity. We are here to help you on your journey. We build crypto products that are simple, elegant, and secure. Whether you are an individual or an institution, we help you buy, sell, and store your bitcoin and cryptocurrency. At Gemini, our mission is to unlock the next era of financial, creative, and personal freedom.The Department: OnchainThe Role: Staff Software Engineer (Applied Cryptography)Security of customers’ digital assets and personal information held with Gemini is our first and foremost priority. Gemini’s Signing team develops and maintains software for the purpose of working with Gemini customers’ digital assets. To directly support our cryptographic software, hardware, and trusted execution environments, this work includes developing and managing cryptographic security tools and libraries and building new tools to help customers securely interact with various blockchains.In our work, we research and develop approaches in our signing environment. Among other projects, this may include implementing secure multi-party computation, partial homomorphic schemes, and applying zero knowledge proofs. We do this all while using hardware to protect our keys in trusted platform modules (TPMs), hardware security modules (HSMs), and trusted execution environments (TEEs). An ideal candidate would have experience in the implementation of cryptographic software that was used with one or more of these hardware areas (e.g., signing, encrypting, load-time attestation, digital signatures, sealing, binding). This engineer will also work closely with various teams including our Security Operations, Custody, Product Security, Wallet Engineering, and Platform Engineering teams. We are a dynamic group with both entrepreneurial spirit and security engineering experience. We have incredibly high aspirations, and we are looking for like-minded individuals who want to guide the transition to a new more decentralized world where access to digital assets is normalized and ubiquitous.Responsibilities:Maintain and build the software that is the foundation for our MPC workImplement software applications that may include key storage, signing, encryption, code attestation, or secure bootDesign, deploy, and maintain security solutions supporting maintenance of digital assetsWork closely with software security engineers to develop the capabilities of the existing signing security infrastructure with a goal of security and scalabilityDevelop tools that integrate security into systems and processParticipate in disaster recovery (DR) scenarios to validate operability of physical and digital materialWork with hardware security mechanisms of interest including a trusted platform module (TPM) and/or hardware security modules (HSMs), and/or other similar hardware key storage mechanismsMinimum Qualifications:Software development experience in at least one of homomorphic encryption, secure multiparty computation, security protocols, PAKE protocols, zero knowledge proofs, or pallier encryptionStrong understanding of encryption and key managementExperience in systems architecture, computer architecture, trustworthy computing, or cryptographic protocolsExperience in system algorithms with performance understanding and optimizations (hardware and software)Experience integrating or deploying in production environmentsFamiliarity with a modern programming language (e.g., Rust, Python, C++, Scala) and a shell environmentExperience in researching and addressing complex business topics around TPMs, HSMs, TEEs, secure build infrastructure, and applied cryptography. Candidates without a strong understanding in one of these areas may still be a strong candidate if this is offset by a strong background in a systems security area (e.g., operating systems, embedded systems security, firmware security, network security engineering)Strong understanding of systems/network security, secure protocol design, secure build and supply chain management, encryption, authentication, key management and applied cryptographyDemonstrated ability to convert theoretical security concepts into productionProficiency in a common scripting language including but not limited to Python, Ruby, etc.Able to troubleshoot and debug issues, and demonstrate a methodical approach to root cause analysisExperience working with engineering teams, teaching, training, and mentoring on how to implement best-practice technical solutionsStrong written and verbal communication skills; attentive to detailsPreferred Qualifications:4+ years experience in software development with a focus in applied cryptography2+ years experience in reading/writing code in Rust, Python, Linux, Scala, C/C++2+ years experience with secure software that makes use of a trusted platform module (TPM), hardware security module (HSM), trusted execution environment (TEE), smartcard, and/or other similar hardware key storage mechanismSolid understanding of product management and product ownership, software development practices (e.g., SDLC), and methodologiesKnowledge of hardware security, verified/secure boot, tamper resistance, side-channel attacks, anti-cloning, and PUFsHaving prior knowledge in the blockchain space is not a requirement but good to haveIt Pays to Work HereThe compensation & benefits package for this role includes:Competitive starting salaryA discretionary annual bonusLong-term incentive in the form of a new hire equity grantComprehensive health plans401K with company matchingPaid Parental LeaveFlexible time off Apply To This Job
This job posting was last updated on 12/3/2025