Salary
$5,000 – $9,500 per month (Gross USD)

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 idóneo 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 d

📌 Senior Security Infrastructure Engineer (Ciudad de México)
🏢 Sezzle
📍 Ciudad de México