Blockchain Security Software Engineer (Web3)

TL;DR

Blockchain Security Software Engineer (Web3): Building and optimizing a real-time on-chain detection and response platform with an accent on analyzing active attack patterns and developing robust security monitors. Focus on translating threat intelligence into production-ready detections, validating their effectiveness, and expanding coverage across various blockchain assets.

Location: On-site in Tel Aviv, Israel

Company

hirify.global provides comprehensive data, services, and solutions to ensure safe and confident navigation of blockchain technology for businesses and governments worldwide.

What you will do

• Analyze active attack patterns on-chain, including wallet compromise, laundering flows, phishing, and malicious contract interactions.
• Develop security detections using internal monitoring language, heuristics, and model signals.
• Validate detection accuracy, reduce false positives, and harden detections against evasion tactics.
• Collaborate with engineers to safely ship detections into production with proper testing and monitoring.
• Identify coverage gaps and expand detection logic across various chains and assets.
• Partner with product and engineering to align detections with customer workflows and response actions.

Requirements

• Strong understanding of blockchain fundamentals including transactions, token standards, address behavior, bridges, MEV concepts, and common attacker playbooks.
• Experience in an adversarial domain such as security, fraud, abuse, or risk, with comfort reasoning about evasive behavior.
• Ability to translate a "threat story" into a production detection, considering signal selection, thresholds, edge cases, and validation.
• Strong Python skills and comfort working with data (queries, datasets, analysis).
• Clear communication and strong collaboration habits.

Nice to have

• Experience investigating on-chain incidents or building detection rules.
• Familiarity with anomaly detection, graph heuristics, or statistical modeling.
• Experience working with real-time pipelines or streaming systems.
• Experience writing detections in a DSL/rules engine.

Culture & Benefits

• Join a global organization with teams in Denmark, UK, Canada, USA, and Israel.
• Work on challenging technical problems in a rapidly evolving industry to build trust in cryptocurrencies.
• Committed to fostering a diverse team reflective of global communities.