Senior Security Engineer (AI)

Location: Czechia; hybrid, with an option to work fully remotely. Offices are located in Prague and Brno.

Company

hirify.global operates a marketplace of trusted tools for AI that automate work on the web, managing infrastructure, billing, and distribution for a global community of builders.

What you will do

• Conduct offensive testing of the multi-tenant platform, Actor sandboxes, proxy, API, Console, AI agents, MCP servers, supply chain, CI/CD, and AWS environments.
• Use AI tools for penetration testing, reconnaissance, code review, exploit development, and security research.
• Research vulnerabilities, attack techniques, and threat activity; assess risks and act on findings.
• Threat-model new features and architecture, and triage, reproduce, rate, and manage vulnerabilities through remediation SLAs.
• Build automation for triage pipelines, code review, advisory monitoring, and attack tooling.
• Hunt for compromise and platform abuse, create detections, and support incident response.

Requirements

• 3+ years of experience in offensive security, penetration testing, security research, AppSec, or a closely related field.
• Hands-on experience finding and exploiting web application and API vulnerabilities beyond OWASP Top 10 checklists.
• Hands-on experience securing and breaking AWS environments, including IAM, CloudTrail, and GuardDuty.
• Ability to write tools and automation in Python, Go, Bash, or similar languages.
• Experience with Burp Suite or similar tools, vulnerability scanners, SAST/DAST, and GitHub security features.
• Daily use of AI tools and understanding of attacks against LLMs and AI agents.
• Active security-community engagement, research reading, clear communication of technical risks, and effective collaboration with engineers.
• Self-starter mentality and ability to identify work independently.

Nice to have

• Proficiency in Node.js/TypeScript.
• Familiarity with SOC 2 or ISO 27001.

Culture & Benefits

• Full-time position with hybrid work in Prague or Brno and an option for fully remote work.
• Flexible working hours, autonomy, and support for personal growth.
• Stock options, profit sharing, unlimited Claude, education and training budget, conference tickets, and hardware budget.
• Unlimited holidays as long as work is completed, plus team offsites and cross-team opportunities.
• Office benefits include free lunches, Multisport card, massages, snacks, drinks, and pet-, child-, and bike-friendly facilities.