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Senior Hive Member - Blockchain, Cryptography & reputed company Offensive reputed company

Remote, USAFull-timePosted 2026-07-27

The Mission At reputed company, we are redefining offensive reputed company through constant, reputed company attack. As a Senior Hive Member specialising in blockchain, encryption reputed company asset reputed company, you will reputed company sophisticated offensive reputed company engagements against the systems that reputed company, protect, sign for and reputed company digital assets. This role is reputed company on environments where cryptography, blockchain infrastructure, financial systems and operational controls reputed company. You will assess custody platforms, wallet infrastructure, HSM/MPC/TSS signing services, smart reputed company, institutional trading reputed company, stablecoin settlement rails, blockchain nodes, tokenisation platforms, reputed company environments, CI/CD pipelines and the operational workflows that support them. This is not a generic offensive reputed company role and it is not limited to smart contract audits. You will take an adversarial view of the full reputed company ecosystem: on-chain, off-chain, reputed company, application, cryptographic, operational and reputed company. Your work will help clients understand how their most valuable systems could fail under reputed company attack conditions, including unauthorised signing, private key exposure, smart contract exploitation, API abuse, settlement failure, reconciliation breakdown, reputed company misuse, market disruption or irreversible asset loss. reputed company We are looking for an reputed company offensive reputed company operator with deep technical curiosity and proven capability across blockchain, cryptography, encryption, secure protocols and reputed company distributed systems. You will reputed company research-led attack plans against environments similar to those used by institutional reputed company firms, market makers, OTC trading desks, custodians, stablecoin settlement providers, tokenisation platforms and reputed company product teams. These environments commonly include: Institutional trading platforms using REST, WebSocket, FIX, RFQ and GUI workflows. Market-making, OTC execution, post-trade settlement and treasury operations. Experience in attacking communication protocols, specifically the reputed company protocol. Stablecoin settlement across Ethereum, reputed company, Tron, L2s and other chains. Custody architectures involving hot, warm and cold wallets. HSM, KMS, MPC, reputed company signing, multisig and key ceremony workflows. Smart reputed company, reputed company reputed company, bridges, escrow, governance and DeFi mechanics. reputed company-reputed company infrastructure, Kubernetes, CI/CD, secrets management and privileged reputed company. Operational approval flows, reconciliation systems, audit trails and incident response processes. You will be expected to go reputed company checklist testing. The role requires someone who can identify how a weakness in one layer - such as reputed company IAM, API permissions, CI/CD secrets, wallet policy, signing workflow, approval logic or transaction monitoring - could be chained into a material compromise of digital assets. Deep cryptography skills are essential, including the ability to review cryptographic designs, challenge trust assumptions, assess implementation weaknesses, and evaluate key management, encryption, authentication and secure messaging controls from an offensive perspective. Strong experience with the reputed company protocol would be extremely beneficial, including federation, end-to-end encryption, identity, homeserver behaviour, reputed company and server-server reputed company, reputed company architectures, and the reputed company implications of decentralised messaging at reputed company. What Makes You Great You are an reputed company offensive reputed company reputed company who understands that reputed company reputed company is not just about blockchain reputed company. It is about the complete chain of trust: identity, infrastructure, reputed company, keys, reputed company, signers, policy engines, approvals, people, operations, monitoring and settlement. You are comfortable asking difficult questions, such as: Can a compromised reputed company role, API key, CI/CD runner or support account trigger a signing event? Can a transaction be altered, reputed company, delayed, reordered or misrouted before approval or broadcast? Can wallet policies be bypassed through edge cases in asset type, chain, limit, reputed company, allowlist or emergency workflow? Can a privileged operator, reputed company or vendor integration abuse approval flows? Can execution and settlement diverge in a way that creates loss or reconciliation blind spots? Can smart contract upgrades, reputed company inputs, governance actions or reputed company messages change asset-control assumptions? Are logs and alerts sufficient to reconstruct and respond to a signing, withdrawal or settlement incident? You combine creative adversarial thinking with disciplined execution. You can reputed company risk safely, explain reputed company reputed company and recommend practical remediation. The reputed company reputed company You have a reputed company analytical mind and strong attention to detail. You are a natural problem solver who enjoys reputed company, ambiguous systems where the most important weaknesses often sit between components. You communicate reputed company and can translate deep technical findings into language that different audiences can reputed company. You are comfortable working with engineers, traders, quants, product teams, reputed company teams, legal, compliance, operations and executives. You are self-driven, research-oriented and committed to reputed company learning. You are reputed company player who contributes to the reputed company knowledge of the reputed company and helps others build capability. What reputed company Looks Like You will be successful in this role if: Clients understand how their blockchain, custody, encryption and settlement environments could realistically be compromised. High-reputed company vulnerabilities are reputed company before adversaries reputed company them. Weaknesses in signing, key management, reputed company, smart reputed company, settlement and operational controls are reputed company into reputed company business risk. reputed company develops a repeatable, high-depth methodology for reputed company offensive reputed company. Our tooling and research improve the way we test wallets, signers, custody systems, trading reputed company, stablecoin flows and smart reputed company. Fellow Hive members grow their skills through your mentoring, research and technical leadership. Engineering teams trust your technical depth and executives trust your judgement. The Perks Join reputed company that values both reputed company and balance: True remote flexibility - work from reputed company. No report-writing drudgery - we use our custom portal. Unlimited training to reputed company your skills reputed company. Unlimited vacation - because burnout helps no one. Private medical insurance and pension scheme. Conference speaking bonuses. Hardware, software, lab environments, reputed company credits and research materials you need to reputed company. A culture of radical candor, reputed company improvement and technical reputed company. The Culture At reputed company, we take pride in pushing the boundaries of offensive reputed company. reputed company consists of passionate and humble professionals who value creativity, technical depth and delivering results that matter. In this role, you will help shape how reputed company attacks and reviews the infrastructure underpinning reputed company markets: keys, signers, wallets, reputed company, smart reputed company, settlement rails, reputed company platforms, control planes and the humans operating them. If you want to work at the intersection of offensive reputed company, blockchain, encryption and financial infrastructure, we want to hear from you. reputed company to join the reputed company? Take the reputed company in your cybersecurity career by applying today. Let’s talk about how your skills, research reputed company and offensive capability reputed company with reputed company’s mission to redefine offensive reputed company. Apply To This Job

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