Senior Security Infrastructure Engineer

Sezzle · Chile, RemoteRemote$5,000–$9,500 USD/messenior

In short

▸Ingeniero de infraestructura de seguridad sênior que fortalece la seguridad en la nube y aplicaciones.
▸Día a día: gestiona vulnerabilidades, crea reglas de detección y responde a incidentes con enfoque práctico y de resultados.
▸Destacado: lidera la maduración de SIEM/XDR y estrategias de detección con enfoque en la nube y cadena de suministro.

No se requiere inglés específico, pero el puesto está en inglés.

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What they ask for

✓6 años o más de experiencia en seguridad de infraestructura
✓Experiencia hands-on en gestión de vulnerabilidades
✓Conocimiento profundo en SIEM/XDR y desarrollo de reglas de detección
✓Capacidad para investigar incidentes y realizar análisis de causa raíz
✓Experiencia en seguridad de aplicaciones y plataforma en la nube
✓Capacidad para colaborar con equipos de ingeniería para integrar seguridad al desarrollo

Don't tick every box? That's normal — your free dossier shows your gaps and how to cover them in the interview.

SIEMXDRCloud InfrastructureApplicationsVulnerability ManagementDependency AnalysisLog IngestionDetection Rule DevelopmentAlert TuningInvestigation Workflows

Who should you write to at Sezzle?

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The salary range for this role is $5,000 - $9,500 per month (Gross in USD) About Sezzle: With a mission to financially empower the next generation, Sezzle is revolutionizing the shopping experience beyond payments, blending cutting-edge tech with seamless, interest-free installment plans that make shopping smarter and more accessible. We’re not just transforming payments; we’re redefining how people discover, interact with, and purchase the things they love while driving real impact on merchant sales through increased conversions and higher order values. As we continue to shape the future of fintech and retail, we’re building an innovative, dynamic team passionate about creating more than just a transaction but a truly unique shopping journey. If you’re excited about pushing boundaries in tech and delivering a game-changing experience for consumers and merchants alike, come join us at Sezzle and help create the future of shopping! Compensation : For this principal development role, with 6+ years of experience, the compensation range is $5,000 - $9,500 USD based on experience level per month and in gross amount. This range acknowledges the extensive expertise, leadership capabilities, and significant contributions expected at this level, offering a competitive salary to reflect the value of advanced skills and experience About the Role: We are seeking a hands-on, high-impact Senior Security Infrastructure Engineer to help strengthen Sezzle’s security posture across cloud infrastructure, applications, and developer workflows. This role is ideal for someone who thrives in a fast-paced environment and wants to work on real-world security problems at scale. As a Senior Security Infrastructure Engineer, you will have a high degree of ownership and autonomy to identify risks, investigate issues, and drive meaningful security improvements across our systems. You will work across vulnerability management, detection engineering, supply chain security, and incident response - partnering closely with engineering teams to ensure security is practical, effective, and embedded into how we build and operate systems. You should consider yourself a DOer - someone who is comfortable diving into logs, analyzing systems, validating findings, and working end-to-end to get issues resolved. We value engineers who bring strong technical depth, good judgment, and the ability to turn security insights into actionable outcomes. This role offers the opportunity to shape and scale security capabilities, including detection systems, supply chain risk controls, and security automation. With the support of modern tooling (including AI where appropriate), you will play a key role in improving efficiency, visibility, and resilience across the organization. This role combines hands-on security operations with exploratory and design work. You will spend significant time investigating and resolving real-world issues, while also researching, evaluating, and building new security capabilities across areas like detection, supply chain security, and data protection. What You’ll Do: • 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

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