Senior Blockchain Security Engineer

zeroShadow is a Web3 security company protecting the next generation of decentralised systems through proactive security intelligence and rapid incident response.

We're building tools that help protocols, exchanges, and on-chain organisations prevent attacks before they happen - and react instantly when seconds matter.

Join zeroShadow's elite frontline defense team as a Senior Blockchain Security Engineer, where you'll stand shoulder-to-shoulder against relentless bad actors, sophisticated cybercriminals, and nation-state adversaries relentlessly targeting companies and individuals in the blockchain ecosystem. This isn't just a job—it's mission command in the never-ending cyber war: you'll wield deep expertise in blockchain mechanics and smart contract intricacies to craft custom detection scripts, sophisticated alerting systems, and real-time radar enhancements that spot malicious intent before it strikes. Every day brings unique challenges demanding creative problem-solving and rapid, decisive action to neutralize disturbances, thwart breaches, and deploy ironclad protections tailored to each evolving threat—making you a pivotal guardian of digital assets in one of the most dynamic and high-stakes battlefields in tech today. If you're ready to hunt threats that never sleep and protect the future of decentralized finance, this is your call to action.

If you’re excited about empowering a safer Web3 ecosystem, you’ll thrive here.

What you'll do Direct engagement with clients to understand their needs and build tailored capabilities, with a particular emphasis on on-chain asset monitoring and alerting solutions. Build custom monitoring across various blockchain analytics tools such as Hypernative, Hexagate, Tenderly, Blockaid and Guardrail. In the event of an incident, our team will then work closely with the client to analyze and triage attack vectors and contain vulnerabilities in compromised smart contracts.

What you'll bring Smart Contract Analytical Experience: Applicants should have hands-on experience of 4-6 years of hands-on smart contract experience (auditing experience is a major plus) Strong scripting and code development/deployment skills Fluent proficiency in Python and other scripting languages Cyber Threat Landscape Experience: Knowledge of the current cyber threat environment, including common attack vectors and potential security breaches within the blockchain space. This understanding helps in proactively identifying risks and mitigating threats to digital assets. A genuine passion for going the extra distance with an unrelenting quest for excellence Benefits

Competitive compensation package, typically ranging from $170,000–$200,000+ USD annually (depending on experience, location, and total comp including benefits/equity/bonuses), reflecting the high-impact nature of protecting billions in Web3 assets at a leading firm like zeroShadow. Remote-friendly with opportunities for top talent worldwide.

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