Salary The salary range for this role is $5,000 - $9,500 per month (Gross in USD). About Sezzle Sezzle is on a mission to financially empower the next generation. By blending cutting‑edge technology with seamless, interest‑free installment plans, the company is redefining how people discover, interact with, and purchase the items they love while driving real impact on merchant sales through increased conversions and higher order values. About the Role We are seeking a hands‑on, high‑impact Senior Security Infrastructure Engineer to strengthen Sezzle’s security posture across cloud infrastructure, applications, and developer workflows. The role requires working in a fast‑paced environment and tackling real‑world security problems at scale. You will have high ownership and autonomy to identify risks, investigate issues, and drive meaningful security improvements across our systems. Responsibilities Lead and operate vulnerability management across infrastructure, platforms, and applications – including internal scans, dependency analysis, and external findings,



validating true positives and driving remediation with engineering teams. Build, operate, and mature SIEM/XDR capabilities, including log ingestion, detection rule development, alert tuning, and investigation workflows. Investigate and respond to security incidents across cloud infrastructure and applications, performing root cause analysis and driving long‑term fixes. Design and implement detection strategies for suspicious activity, including data exfiltration patterns using application and database telemetry. Lead and contribute to threat modeling exercises and security design reviews to identify risks early and strengthen architecture. Apply deep expertise in AWS and Kubernetes to design, secure, and improve resilient and secure cloud infrastructure at scale. Drive infrastructure and CI/CD hardening initiatives, with a focus on reducing software and container supply chain risk. Lead effort

📌 Senior Security Infrastructure Engineer (Recoleta) (Ovalle)
🏢 Sezzle
📍 Ovalle