Remote (United States) Remote (Global) Full-time USD 180,000 – 210,000 / year

Ant-Tech is hiring a Senior Security Engineer DeFi & AI Security

Responsibilities

  • Analyze potential threats in new product features and integrations, implementing robust security measures to strengthen system resilience.
  • Maintain and enhance the application security toolchain to ensure it delivers actionable insights for development teams.
  • Manage daily security operations including endpoint detection, cloud security, identity controls, SIEM, and on-chain monitoring.
  • Evaluate and prioritize security alerts, investigate incidents, resolve vulnerabilities, and reduce false positives.
  • Assess findings from vulnerability scans and bug bounty programs based on real-world risk, guiding remediation efforts to completion.
  • Support incident response from initial detection through investigation, containment, and resolution.
  • Lead the evaluation, selection, and enterprise-wide deployment of security tools and platforms.
  • Work closely with engineering, infrastructure, product, and cross-functional teams to integrate security practices.
  • Automate routine security tasks using artificial intelligence across areas such as vulnerability management, access reviews, compliance, and reporting.
  • Develop reusable AI-powered tools, Claude skills, and autonomous security agents for adoption across technical teams.

Requirements

  • Minimum of five years of practical experience in security engineering, spanning application security and operational security.
  • Proven ability to conduct in-depth technical security evaluations of software and infrastructure.
  • Hands-on experience hardening systems, analyzing security policies, and deploying effective controls.
  • Adversarial thinking with the ability to simulate attacker behavior and question underlying assumptions.
  • Proficiency in at least one of the following: Python, TypeScript, or JavaScript.
  • Experience using AI coding tools such as Claude Code, Codex, or equivalent platforms.
  • Demonstrated experience applying large language models and AI to automate security workflows and build tools used by engineering teams.
  • Track record leading security initiatives from vendor assessment to company-wide implementation.
  • Experience securing systems that handle high-volume or high-value transactions.
  • Strong communication skills, with the ability to clearly articulate technical risks and drive resolution of security issues.

Nice to Have

  • Background in cryptocurrency, blockchain technology, decentralized finance (DeFi), or on-chain security monitoring.
  • Experience protecting financial systems or platforms with heavy transaction loads.

Benefits

  • Remote-first work model
  • Eligibility to work from any location within the US and Canada
  • UK and EU applicants must align with EST working hours
  • Periodic company-wide retreats and in-person collaboration opportunities
  • Full employer coverage of medical, dental, and vision insurance premiums
  • One-time $1,000 stipend for home office setup
  • Monthly reimbursement for internet, phone, and cellular data expenses
  • Unlimited paid time off
  • Twelve weeks of fully paid parental leave
  • Fertility-related benefits included
  • Eligibility for performance-based incentive compensation
  • Participation in company equity program

Work Arrangement

Remote-first, work from US or Canada; UK & EU candidates must work EST hours

Other

UK & EU candidates must be able to work EST time-zone hours.

Required Skills
System HardeningPythonTypeScriptJavaScriptBlockchainDeFi
Test your skills for this role

Take a short quiz and show this employer what you can do.

Job Details
Location Remote (United States)
Work mode Remote (Global)
Employment Full-time
Salary USD 180,000 – 210,000 / year
Department IT Security
Category Security
Posted a month ago
or drop your CV first
About company
Ant-Tech logo
A headhunter agency in France specializing in recruitment services across various industries.
All jobs at Ant-Tech Visit website