Capital Empresarial Horizonte, a Mexican company specializing in Human Resources and Information Technologies, is seeking: Penetration Testing and Security Specialist **Conversational English required** **Location:** On-site / Guadalajara **Employment Type:** Full-time **Minimum Experience:** 7–8 years **Job Description** We are seeking a **Senior Application Security Pentester** with extensive experience in penetration testing and application security. This position requires advanced technical skills, analytical thinking, and the ability to communicate findings clearly and actionably. **Responsibilities** * Conduct penetration testing on web applications, software, web services, networks, mobile applications, and thick clients. * Perform security activities focused on the identification and actual exploitation of vulnerabilities. * Utilize security tools such as Burp Suite and scripting languages. * Support the technical definition and scoping of security testing activities. * Evaluate and triage vulnerability data from multiple platforms and tools, both manually and through code review. * Analyze false positives and generate clear, accurate results for clients. * Provide technical advisory and consulting support for vulnerability remediation. * Contribute to the development of scanning configurations and tool deployment. * Escalate critical risks and issues to the Regional Operations Manager when necessary. * Drive continuous improvement in vulnerability services and organizational risk reduction. * Support code and network infrastructure assessments based on client requirements. * Periodically review and update test cases. **Requirements** * 7–8 years of experience in penetration testing. * Solid experience in Application Security. * Excellent verbal and written communication skills. * Proficiency with tools such as Burp Suite. * Knowledge of Python or other automation languages (desirable). * Knowledge of LLMs. * Understanding of the CVSS scoring system. * Desirable knowledge of SAST and SCA. **Desirable Certifications** * CISSP * OSCP / CPT / CEPT / CMWAPT **We Offer:** * Office working hours * 100% payroll-based employment scheme * Salary open to negotiation based on experience * Statutory benefits * Enhanced benefits (family SGMM, SV coverage up to 1 million MXN, grocery vouchers, 30-day Christmas bonus, profit-sharing distribution)