Brazil On-site Employment

ARQ is hiring a Security Engineer, Mid

Responsibilities

  • Support application security work: threat modelling sessions, secure code review, API security testing, and CI/CD pipeline checks
  • Help review and monitor AI/agentic workflows for prompt risks, unsafe automated actions, and data exposure
  • Build and maintain SIEM detection rules, alert pipelines, and response playbooks (Datadog SIEM, CrowdStrike, Cloudflare), owning detection coverage for a defined set of systems end-to-end
  • Support incident response: triage alerts, execute IR playbooks, and help run tabletop exercises
  • Conduct cloud security assessments across AWS and Kubernetes environments under the guidance of senior team members
  • Execute vendor security assessments using the established due diligence framework, owning the review process for a portion of the vendor pipeline

Requirements

  • 2–4 years in information security or a closely related technical role (security operations, cloud/infra engineering with a security focus, or similar)
  • 2+ years at a regulated fintech/bank/payment company
  • Working experience with at least one cloud environment (AWS preferred) and familiarity with Kubernetes fundamentals
  • Basic familiarity with application security concepts: threat modelling, secure code review, or API security testing
  • Exposure to SIEM platforms and an interest in detection engineering – you've written or tuned at least a few detection rules
  • Strong written and verbal communication in English

Nice to Have

  • Curiosity about AI/agentic tooling risks (LLM integrations, MCP servers, automated workflows) – prior hands-on experience is a plus, not required

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

Work Arrangement

On-site — Brazil

Additional Information

  • Office Policy: 3-4 days a week in-office
About company
ARQ

ARQ opens the world's strongest assets and markets to travelers, investors, and professionals – so they can grow their money wherever they are.

ARQ allows companies to move and spend in the world’s strongest currencies, all from one business account.

Convert digital dollars, digital euros and your local currency at the real rate, no spread, no waiting for office hours.

All jobs at ARQ Visit website
Job Details
Department Security
Category security
Posted 4 days ago