Ethical Hacker / Application Security Expert - Red Team
PayU Payments
Posted on: February 27, 2026
Job Title: Application Security Expert - Red Team / Ethical Hacker
Department: Information Security / Cybersecurity
Reports To: Group CISO
Job Summary:
The Application Security Expert - Red Team / Ethical Hacker is a critical role responsible for proactively identifying and exploiting security vulnerabilities in our software applications throughout the entire Software Development Life Cycle (SDLC). Operating as a key member of the in-house Red Team, this role will focus on simulating real-world attacks, conducting advanced penetration testing, and providing actionable intelligence to strengthen our overall security posture.
Responsibilities:
• Red Teaming & Attack Simulation:
• Plan and execute realistic attack simulations against our web, mobile, and desktop applications to identify weaknesses and bypass security controls.
• Develop and utilize custom exploits, tools, and techniques to mimic the tactics, techniques, and procedures (TTPs) of advanced threat actors.
• Conduct social engineering campaigns to assess employee awareness and identify potential vulnerabilities.
• Advanced Penetration Testing:
• Perform in-depth penetration tests of applications, networks, and systems, using both automated tools and manual techniques.
• Identify and exploit complex vulnerabilities, including those related to application logic, authentication, authorization, and data handling.
• Develop detailed penetration test reports with clear and actionable recommendations for remediation.
• Secure Code Review (Offensive Perspective):
• Conduct code reviews from an offensive perspective, identifying potential vulnerabilities that could be exploited by attackers.
• Provide developers with guidance on secure coding practices and vulnerability remediation techniques.
• Develop and maintain secure coding guidelines and checklists.
• Vulnerability Research & Exploit Development:
• Stay up-to-date on the latest security threats, vulnerabilities, and exploit techniques.
• Conduct vulnerability research to identify new and emerging threats.
• Develop custom exploits and tools to test and demonstrate the impact of vulnerabilities.
• SDLC Integration & Security Advocacy:
• Collaborate with development teams to integrate security testing and red teaming activities into the SDLC.
• Participate in design reviews and provide security guidance on application architecture and design.
• Promote a security-conscious culture within the development organization.
• Vulnerability Management (Validation & Verification):
• Validate and verify the effectiveness of vulnerability remediation efforts.
• Retest remediated vulnerabilities to ensure they have been properly addressed.
• Security Tooling & Automation (Offensive Tools):
• Evaluate, recommend, and customize offensive security tools and technologies.
• Automate red teaming and penetration testing processes to improve efficiency and coverage.
• Required Skills and Qualifications:
Education:
• * Bachelor's or Master's degree in Computer Science, Information Security, or a related field.
Experience:
• * 8+ years of experience in application security, penetration testing, red teaming, or a related field.
• Demonstrable experience conducting advanced penetration tests and red team engagements.
• Strong understanding of web application vulnerabilities (e.g., OWASP Top 10, SANS Top 25).
• Experience with various penetration testing tools and frameworks (e.g., Metasploit, Burp Suite, Kali Linux).
• Experience with exploit development and reverse engineering.
• Technical Skills:
• Expert proficiency in one or more programming languages (e.g., Python, Java, C, C++).
• Strong understanding of web application architectures and technologies.
• Deep understanding of network protocols and security concepts.
• Familiarity with cloud security principles and practices (e.g., AWS, Azure, GCP).
• Understanding of authentication and authorization mechanisms.
• Certifications (Required/Preferred):
• Offensive Security Certified Professional (OSCP) - Required
• Certified Ethical Hacker (CEH) - Preferred
• GIAC Web Application Penetration Tester (GWAPT) - Preferred
• Offensive Security Certified Expert (OSCE) - Highly Preferred
• Offensive Security Web Expert (OSWE) - Highly Preferred
About Company
PayU Payments
Karnataka ,IN
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