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
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
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
Skills Required
- 4-7 years of cybersecurity experience
- At least 2 years of experience at a regulated fintech, bank, or payment company
- Hands-on cloud infrastructure security experience with AWS and Kubernetes
- Experience with SIEM platforms and detection engineering, including writing detection rules
- Knowledge of threat modeling, secure code review, CI/CD pipeline hardening, and API security testing
- Experience with endpoint security tooling, including EDR/XDR
- Experience with identity and access management in SaaS-heavy environments, including Google Workspace, Okta or Cloudflare Access, SSO, and SCIM
- Ability to assess and secure AI and agentic tooling, including LLM integrations, MCP servers, and automated workflows
- Experience conducting vendor security assessments and third-party due diligence
- Strong written and verbal communication skills
- Business-fluent English
What We Do
ARQ opens the world's strongest assets and markets to travelers, investors, and professionals in the Americas – so they can grow their money wherever they are.
Why Work With Us
We believe that small teams with the best talent outcompete massive companies with mediocre capabilities. That's why we have gathered a set of people who have done it before at iconic companies. In our quest to reshape the global financial system we have raised tens of millions of dollars from leading investors (Sequoia Capital, Founders Fund, etc)
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