Senior Detection Engineer (SOC)

About the role

The Senior Detection Engineer will design, build, test and tune security detections for a 24/7 SOC serving a large US consumer lender. Working on‑site in Bogotá or Buenos Aires, you will handle telemetry from multiple sources and deliver alerts through Elastic.

Key responsibilities

• Own detection use cases end‑to‑end: research, logic, testing, documentation, release and client approval.
• Build correlation and multi‑stage detections across endpoint, identity, network, email and cloud telemetry.
• Create custom IOAs in CrowdStrike, detections in Microsoft Defender, identity detections on Okta and AWS control‑plane coverage.
• Tune noisy rules, document changes and maintain false‑positive rates.
• Fix parsers and data‑quality issues in the data pipeline.
• Peer‑review rules, turn hunt findings into backlog items and support major incidents.

Required profile

• Several years of experience writing, testing and tuning detections in production on a SIEM or analytics platform.
• Deep query skills in at least one detection language and ability to learn others quickly.
• Understanding of attack visibility across endpoint, identity and cloud telemetry mapped to MITRE ATT&CK.
• Strong English communication (B2+) to defend rule logic to US‑based leads and clients.
• Autonomous, evidence‑driven mindset treating detections as code with Git, peer review and change control.
• Availability to work on‑site during US Eastern business hours.

Required skills

• Elastic Security (EQL, ES|QL, KQL)
• Splunk (SPL), Sentinel, Chronicle
• Abstract Security, Cribl, Logstash
• CrowdStrike Falcon, Microsoft Defender, Okta System Log, AWS CloudTrail, GuardDuty
• Git, Python, PowerShell
• MITRE ATT&CK framework
• Bonus: Sigma, YARA, Atomic Red Team, Caldera, SOAR playbooks

What we offer

• Competitive base salary
• Flexible work model: hybrid, remote or in‑office
• Real growth opportunities and leadership visibility
• Inclusive, respectful culture blending US innovation with Colombian heart
• Company that listens, invests in you and celebrates wins together