Security Engineer | Generalist

About the role

WHAT YOU'LL DO

- Build and improve SIEM detection rules, alert pipelines, and automated response playbooks (Datadog SIEM, CrowdStrike, Cloudflare)

- Contribute to incident response readiness, including IR playbooks, tabletop exercises, and forensic procedures

- Support DLP strategy and data protection controls across Google Workspace, Slack, and internal tooling

- Conduct cloud security assessments across AWS and Kubernetes environments

- Drive application security initiatives: threat modelling, secure code review support, API testing, and security pipeline improvements

- Assess and secure AI/agentic workflows across the company — reviewing prompts, preventing destructive actions, and controlling data exposure

- Establish and run the vendor security assessment process — building a scalable due diligence framework for third-party onboarding

WHAT YOU'LL NEED

- 4–7 years in cyber security, ideally having built or significantly shaped the security function at a startup or high-growth company - you've been the person who sets things up, not just maintains them

- 2+ years at a regulated fintech/bank/payment company

- Hands-on experience with cloud infrastructure security (AWS, Kubernetes)

- Working knowledge of SIEM platforms and detection engineering - you've written detection rules, not just consumed alerts

- Familiarity with application security practices: threat modelling, secure code review, CI/CD pipeline hardening, and API security testing

- Experience with endpoint security tooling (EDR/XDR) and identity & access management in a SaaS-heavy environment (Google Workspace, Okta/Cloudflare Access, SSO/SCIM)

- Ability to assess and secure emerging AI/agentic tooling - you understand the risks of LLM integrations, MCP servers, and automated workflows, and can define practical guardrails

- Experience running or contributing to vendor security assessments and third-party due diligence

- Strong written and verbal communication

- Business fluent in English

BENEFITS

- Competitive salary and benefits

- Stock options, so you own part of what you build

- Discretionary performance bonus

- The latest tools and technology

- A world-class team that will challenge and grow your skills

- The opportunity to help build the best fintech app in Latin America

- Office Policy: 3-4 days a week in-office

See the posting on ARQ's site