Jobs in the United States

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Forward Deployed Engineer
United States
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Added 2 mins ago
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Remote, United States
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Sr. Test Automation Engineer
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- $120,000 to $200,000 USD / year
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Added 6 mins ago
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Software Verification Engineer
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ECHONOUS INC
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Added 38 mins ago
Red Hat Enterprise Linux (RHEL) Endpoint Administrator
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ARQ

Senior Detection Engineer | SecOps

New York, NY, United States

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Job details

Posting language: English
Posted: Oct 30, 2026

Original job description

WHAT WE'RE LOOKING FOR

You'll own detection engineering and help shape how ARQ detects and responds to threats. From bringing new log sources into ARQ’s SIEM to writing, testing and tuning detections, you'll be responsible for making sure our coverage works when it matters.

We're looking for someone who combines hands-on detection experience with an engineering mindset. You'll work directly with our CISO and a small global security team, with the autonomy to prioritise gaps and build practical solutions. Automation is central to how we work: you'll build and run AI agents that support rule development, validation, alert triage and threat hunting, with you reviewing and approving their output.

WHAT YOU'LL DO

Own detection engineering end to end in Datadog Cloud SIEM: identify missing log sources, prioritise onboarding and build reliable detection coverage.
Write, test and tune detection rules, reducing false positives while keeping meaningful threats visible.
Map coverage to MITRE ATT&CK and validate it by reproducing attacker activity.
Manage detections as code, using version control, CI pipelines and code review.
Build and run automation and AI agents for rule authoring, detection validation, coverage mapping, alert triage and threat hunting.
Investigate security incidents, including triage, scoping, evidence collection and clear incident write-ups.
Help develop automated response and containment capabilities.
Track and communicate detection coverage, validation results and response performance to security leadership.

WHAT YOU'LL NEED

5+ years in security, including 3+ years writing and owning detections in production.
Hands-on experience with a cloud SIEM and its query language, such as Datadog Cloud SIEM, Splunk, Elastic, Google SecOps.
Deep knowledge of AWS logs, particularly CloudTrail, IAM and IAM Identity Center, alongside experience with SaaS audit logs such as Google Workspace, GitHub, GitLab or Okta.
Experience managing detections as code using Terraform, Git, CI pipelines and code review.
Practical experience mapping detections to MITRE ATT&CK and testing rules by reproducing attacks with tools such as Atomic Red Team or Stratus Red Team.
Python skills for automation, log analysis and security tooling, with a record of shipping automation or AI agents that others use.
Hands-on incident response experience, from investigating alerts to documenting findings and remediation.
The ability to work independently, prioritise effectively and own outcomes in a small team without a dedicated SOC behind you.
Strong written and verbal communication in English.

NICE TO HAVE

Familiarity with CrowdStrike Falcon, Datadog SIEM, Cloudflare Zero Trust or WAF.
Experience working with Kubernetes (EKS) audit logs.
Threat hunting, red team or purple team experience.
Experience building agentic workflows using Claude or OpenAI.
A background in fintech, payments or crypto, with exposure to SOC 2 or PCI DSS.
Spanish or Portuguese language skills.

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

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