Lead Blockchain Security Architect: Crypto Threat Hunter

Crypto Pro Network; United Kingdom; Remote; GBP 150,000 - 190,000; Full time

Job summary

JPMorgan Chase & Co in London is seeking a Principal Cybersecurity Architect - Blockchain to lead security for distributed ledger technologies and application-layer protocols. You will identify risks, collaborate with cryptographers and threat intelligence experts, and drive secure design across our digital asset platforms.

This role blends hands-on research with real-world impact, guiding post-quantum readiness and secure deployment patterns while partnering with engineering and DevOps to

Qualifications

• Strong understanding of Ethereum, Solana, and Bitcoin ecosystems.
• Proven experience in smart contract auditing with Solidity, Rust, and the Anchor framework.
• Hands-on expertise in vulnerability research, exploit development, or proof-of-concept prototyping.
• Familiarity with threat hunting, attack simulation, and adversary emulation in blockchain environments.

Responsibilities

• Proactively hunt for threats across blockchain networks, smart contract ecosystems, and infrastructure components.
• Perform ongoing threat intelligence, attack surface mapping, and exploit simulation on platforms such as Ethereum, Bitcoin, and Solana.
• Design and execute proof-of-concepts and demonstrations for discovered vulnerabilities and proposed mitigations.
• Identify and mitigate vulnerabilities in smart contracts, wallets, bridges, and node infrastructure.
• Conduct security assessments and code reviews across Solidity, Rust, and off-chain components.
• Partner with engineering and DevOps to secure CI/CD pipelines, API gateways, and validator nodes.
• Collaborate with cryptographers to evaluate readiness for post-quantum cryptography transitions.
• Advise on secure deployment patterns, product launches, and security-by-design principles.

Skills

Ethereum

Solana

Bitcoin

Solidity

Rust

Anchor framework

Threat hunting

Attack simulation

Cross-functional collaboration

Tools

Mythril

Slither

Echidna

Foundry

Halmos

Job description

JPMorgan Chase & Co in London is seeking a Principal Cybersecurity Architect - Blockchain to lead security for distributed ledger technologies and application-layer protocols. You will identify risks, collaborate with cryptographers and threat intelligence experts, and drive secure design across our digital asset platforms.

This role blends hands-on research with real-world impact, guiding post-quantum readiness and secure deployment patterns while partnering with engineering and DevOps to