Principal Security Engineer (Blockchain, Cloud & AI)

Location: Remote in Ireland

Base pay range: €110,000–€170,000 annually

Company

hirify.global builds digital-asset, payment, stablecoin, and programmable blockchain infrastructure for enterprises, financial institutions, and developers.

What you will do

• Lead detection and response initiatives across blockchain, custody, cloud, endpoint, and AI environments.
• Build coverage for on-chain anomalies, custody-vault interactions, wallet abuse, smart contract exploitation, and protocol-level attacks.
• Develop AWS and EKS detections for IAM compromise, identity federation abuse, container lateral movement, runtime exploitation, and configuration drift.
• Address AI risks including shadow AI, unauthorized integrations, agentic workflows, MCP/tool abuse, and AI-driven credential exposure.
• Lead incident investigations, provide security guidance, and collaborate with engineering and business teams.
• Maintain SIEM, case management, and SOAR tooling while advancing AI-assisted SOC workflows and Detections As Code.

Requirements

• 10+ years of experience in detection, response, or security engineering.
• 3+ years of experience commanding security incidents, particularly incidents involving engineering teams.
• Deep AWS security experience covering IAM, identity federation, KMS, EKS, container attack patterns, runtime exploitation, and CSPM tooling.
• Working knowledge of blockchain and crypto-native threats, including wallet and custody attacks, on-chain monitoring, protocol risks, and smart contract abuse.
• Hands-on experience with AI tooling and understanding of organizational AI risks, including shadow AI, agentic workflows, and MCP/tool integrations.
• Experience with SIEM, case management, SOAR, macOS internals, Python or Golang, and Detections As Code.

Nice to have

• Experience with GCP or OCI.
• Direct experience defending blockchain, custody, or DeFi infrastructure.

Culture & Benefits

• Flexible work environment with an emphasis on transparency, integrity, and collaboration.
• On-call duty every third week, mainly during working hours, with occasional nighttime and weekend incidents.
• Opportunity to work on high-stakes security problems across financial, blockchain, cloud, and AI systems.
• Inclusive equal-opportunity workplace with interview accommodations available.