Security Engineer, Mid

DolarApp; São Paulo; Presencial; BRL 150 000 - 190 000; Tempo integral

Vantagens oferecidas por esta oferta de emprego

Stock options

Discretionary performance bonus

In-office 3-4 days a week

Resumo da oferta

ARQ is seeking its first Security Engineer based in Brazil to lay the security foundation for the region while collaborating with a global security team.

You will work across Application Security, Security Operations, and Governance/Risk/Compliance, moving across at least two areas in this founding role. 3-4 days in-office in a hybrid setup.

Qualificações

• 2-4 years in information security or a closely related technical role.
• 2+ years at a regulated fintech/bank/payment company.
• Experience with at least one cloud environment (AWS preferred) and Kubernetes fundamentals.
• Basic familiarity with application security concepts: threat modelling, secure code review, or API security testing.
• Curiosity about AI/agentic tooling risks - prior hands-on experience is a plus, not required.
• Exposure to SIEM platforms and an interest in detection engineering.
• Strong written and verbal communication in English.

Responsabilidades

• 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

Conhecimentos

English communication

Security operations

Threat modelling

Secure code review

API security testing

Ferramentas

Datadog SIEM

CrowdStrike

Cloudflare

AWS

Kubernetes

Descrição da oferta de emprego

What We're Looking For

You'll be ARQ's first Security Engineer based in Brazil – it's the chance to lay the foundation for how we do security in the region and shape how that function grows from here. You'll work closely with our global security team but have real autonomy in deciding what "good" looks like locally, from day one.

We're looking for someone who enjoys a multidisciplinary role. Security at ARQ spans Application Security, Security Operations, and Governance/Risk/Compliance, and we need someone comfortable moving across at least two of these three areas – because in a founding role, there's no one else to hand off the parts that don't fit your specialty.

What you'll do

• 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

What you'll need

• 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

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

• 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

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