
Senior Vulnerability Researcher – Cybersecurity
Posted May 20

Posted May 20
This is a fully remote position, open to applicants in Argentina.
• Conduct security research on web applications, APIs, and intricate application workflows.
• Detect, verify, and replicate real-world vulnerabilities in contemporary applications.
• Evaluate authentication, authorization, session management, and access control mechanisms.
• Convert manual penetration testing methodologies into automated detection and exploitation frameworks.
• Create and enhance payloads, exploitation strategies, and methods for validating vulnerabilities.
• Examine HTTP traffic, browser behavior, and application processes to identify security flaws.
• Collaborate with engineering teams to enhance the platform’s automation and offensive security functionalities.
• Clearly document findings, including technical specifics, impact assessments, and reproduction steps.
• Over 5 years of practical experience in vulnerability research, penetration testing, bug bounty initiatives, or offensive security.
• In-depth knowledge of web application and API security.
• Comprehensive understanding of authentication and authorization processes; including JWT, OAuth, SSO, sessions, and cookies; as well as access control vulnerabilities and privilege escalation.
• Demonstrated experience in identifying vulnerabilities such as IDOR / BOLA, business logic flaws, authentication bypasses, and privilege escalation vulnerabilities.
• Proficient in using offensive security tools like Burp Suite, Postman, curl, and Browser DevTools.
• Capability to analyze and manipulate HTTP requests/responses and application behaviors.
• Experience in scripting with Python or JavaScript.
• Background in transforming manual pentesting workflows into automated testing logic.
• Excellent communication and documentation abilities.
• Conversational proficiency in English.
• Must reside in Latin America.
• Nice to have:
• Strong Python development skills.
• Experience with browser automation tools such as Playwright, Selenium, or Puppeteer.
• Familiarity with GraphQL, gRPC, WebSockets, and mobile APIs.
• Exposure to cloud security environments.
• Knowledge of AI-driven security or automated exploitation processes.
• Familiarity with tools like Nuclei or custom vulnerability scanners.
• 100% Remote Work: Enjoy the flexibility to work from the location that suits you best. All you need is a laptop and a reliable internet connection.
• Highly Competitive USD Pay: Receive an attractive, market-leading salary in USD that surpasses typical offerings.
• Paid Time Off: We prioritize your well-being. Our paid time off policies provide you with the opportunity to relax and recharge when necessary.
• Work with Autonomy: Enjoy the liberty to manage your time as long as you meet your work commitments. Focus on outcomes rather than the hours clocked in.
• Collaborate with Leading American Companies: Enhance your skills while working on innovative, high-impact projects with industry-leading U.S. companies.
Yopeso
ZoomInfo
CEA
GXA
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