Senior Security Engineer, Threat & Offensive Security at Valon in New York, NY

Job description

About the Company Valon is the leading AI platform for mortgage servicing, building the AI-native operating system for regulated finance. Before providing the system of record that powers the entire industry, we built and ran our own mortgage servicer on it. That gave us a real regulated environment to prove our technology could replace the mainframe systems servicers have used for decades. Carrington acquired that servicer and adopted ValonOS as its core platform, allowing us to focus entirely on scaling our SaaS platform. ValonOS is now on track to power 1 in 6 U.S. mortgages across major mortgage servicers like Newrez, Carrington, and ServiceMac. Every process on the platform is structured and programmable, enabling our AI agents to perform core servicing work, like handling payments, escrow, and homeowner questions, directly within the system's controls. We recently raised a $150 million Series D at a $2.3 billion valuation by new investor Ribbit Capital, with continued support from existing backer a16z, amongst others. Security at Valon Our customers entrust us with some of their most sensitive and personal financial information, and it is the ultimate mission of Valon’s Security team to ensure we have sound programs, processes, and automation in place to safeguard our customers’ data. The Security team protects the infrastructure and data for processing billions of dollars of mortgage loans. In addition to protecting Valon’s internal systems, the Security team partners closely with Product and Engineering to design and deliver secure, scalable, and trustworthy capabilities for ValonOS. We work cross-functionally across all teams at Valon to enable security throughout the organization. We engage with external security auditors, pentesting firms, and partners to continuously evaluate Valon’s security posture. Valon offices are located in New York City and San Francisco, but we fully support remote work! About the Role We are seeking an experienced and skilled Senior Security Engineer, Threat & Offensive Security to join our growing team! As a key security member at Valon, you will help scale and strengthen our offensive security and threat operations, proactively identifying weaknesses in our systems, networks, and applications as the company continues to grow. This position requires a deep understanding of adversarial techniques, security testing methodologies, threat intelligence, and incident response, along with the ability to collaborate with cross-functional teams. Importantly, this role requires an AI and automation-first approach to security work, using modern tools to scale testing, threat management, and response. You will help ensure security is embedded across our environment and that we continue to safeguard our most critical assets and maintain the trust of our customers and stakeholders. Responsibilities Drive and conduct security testing and penetration tests across applications, infrastructure, and networks to identify exploitable vulnerabilities Manage and implement security testing tools and frameworks to simulate real-world attacks and validate the effectiveness of existing security controls Design and implement AI-enabled workflows to scale security testing and threat related operations. Manage and operationalize threat intelligence to anticipate emerging threats and adjust defenses proactively Partner with external pentesting firms for periodic, independent reviews Perform security reviews of new systems, features, architectures, and third-party integrations, providing actionable risk-based recommendations Collaborate with Engineering, IT, Product and other teams to remediate identified vulnerabilities and strengthen security controls Develop and refine playbooks, procedures, and standards for offensive security testing, threat monitoring, and incident response Monitor and manage security alerts and incidents, analyze data, and respond to security events Support operational activities including genera