Senior Security Engineer - Penetration Tester

Experteer Overview In this role you build and lead offensive security testing across diverse tech domains, from AI systems to mainframes, helping protect critical business operations. You work with a high-performing team to shape testing methodologies, drive security capabilities, and stay ahead of adversaries. You will translate complex findings into actionable remediations and mentor others, contributing to a culture of excellence. This is a fast-paced, impactful role with opportunities to advance security capabilities at scale. Compensation / Benefits * Conduct penetration tests across enterprise and cloud environments, AI systems, APIs, mobile apps, Active Directory, and other assets * Simulate real-world attack techniques to identify vulnerabilities and misconfigurations * Validate remediation efforts and document risk-reducing findings * Maintain testing artifacts for regulatory and compliance purposes * Defend findings in discussions with teams and leadership; participate in escalation and remediation planning * Collaborate with internal and external teams to improve coverage; stay current with attack techniques and trends * Contribute to AI security testing initiatives and security validation of AI models * Mentor junior security professionals; provide peer reviews and contribute to standards and playbooks * Support special projects and security initiatives aligned to expertise Tasks * Bachelor’s degree or equivalent education, training, and work-related experience * Minimum 7 years in security engineering or related cybersecurity roles * Deep knowledge of cybersecurity principles, threat modeling, testing, and penetration testing * Experience implementing and managing complex information security technologies * Experience in SDLC security practices and articulating security risks to diverse audiences Key requirements * medical, dental, vision * life insurance * 401k plan * vacation and sick days * paid holidays * pension/RSUs/deferred compensation (where applicable)

escalation and remediation planning * Collaborate with internal and external teams to improve coverage; stay current with attack techniques and trends * Contribute to AI security testing initiatives and security validation of AI models * Mentor junior security professionals; provide peer reviews and contribute to standards and playbooks * Support special projects and security initiatives aligned to expertise Tasks * Bachelor’s degree or equivalent education, training, and work-related experience * Minimum 7 years in security engineering or related cybersecurity roles * Deep knowledge of cybersecurity principles, threat modeling, testing, and penetration testing * Experience implementing and managing complex information security technologies * Experience in SDLC security practices and articulating security risks to diverse audiences Key requirements * medical, dental, vision * life insurance * 401k plan * vacation and sick days * paid holidays * pension/RSUs/deferred compensation aaaa in applicable