Remote Cyber Threat Hunter & Incident Response Pro

CELESTIAL INNOVATIONS GROUP LLC; Oregon; Hybrid; USD 120,000 - 180,000; Full time

Benefits offered by this job

401(k)

Competitive salary

Dental insurance

Health insurance

Paid time off

Training & development

Vision insurance

Job summary

Celestial Innovations Group (CIG) is seeking experienced Threat Hunters focused on digital forensics and incident response. You will work on active matters including ransomware and cloud account compromises, and you will document findings with precise, factual timelines for clients, counsel, and insurers.

Endpoint Threat Hunter and Cloud Threat Hunter capabilities are valued; you will identify compromised systems, write detection rules, and drive containment actions in coordination with

Qualifications

• 5+ years in cybersecurity, including at least 3 years of hands-on incident response or threat hunting on real intrusions.
• 2+ years of detection engineering: writing, testing, and tuning detections in production.
• Direct experience on ransomware or cloud compromise investigations, ideally in a commercial or multi-tenant setting.
• Proficient in at least two of CrowdStrike Falcon, SentinelOne Singularity, and Microsoft Defender for Endpoint, with working knowledge of the third.
• Cloud focus: Proficient in AWS, Azure/Entra ID/Microsoft 365, and/or GCP log investigation, with working knowledge of at least one of the EDR platforms above.
• Production-quality hunting queries in KQL plus at least one of CrowdStrike Query Language, SentinelOne PowerQuery, or SQL; comfortable reading Splunk SPL
• Ability to write and tune Sigma and YARA rules and map findings to MITRE ATT&CK
• Scripting in PowerShell and Python
• Solid forensic fundamentals: Windows artifacts (event logs, registry, Prefetch, Amcache, Shimcache, SRUM, $MFT, USN journal), Linux and macOS logs and persistence, triage tools such as KAPE or Velociraptor, the Eric Zimmerman tools, timelining, and basic memory analysis with Volatility or similar
• Knowledge of current ransomware tactics, common initial access vectors, and exfiltration tools such as Rclone, MEGAsync, and Restic
• Understanding of chain of custody and evidence handling that will withstand legal scrutiny
• Strong written English and the ability to brief non-technical stakeholders
• Availability for the full period of performance, including participation in potential on-call rotation covering nights, weekends, and holidays
• Must be a U.S. citizen and reside in the United States
• Must have a commercial background check completed within the last 6 months, or be willing to complete one prior to start

Responsibilities

• All Threat Hunters
• Support two to four active client matters at a time, with priorities that can shift within the hour
• Proactively hunt across client environments to identify every compromised system and account
• Write and tune detection rules and hunting queries during active incidents
• Drive and recommend containment actions in coordination with the engagement lead
• Keep contemporaneous, factual notes and produce clear timelines and findings suitable for review by clients, counsel, and insurers
• Brief engagement leads, and when requested, clients and counsel
• Validate and tune EDR deployments in new environments, including policy configuration and sensor health review
• Hunt for credential dumping, remote access tool abuse, living off the land binaries, lateral movement, and persistence
• Execute host isolation, process termination, file quarantine, and account disablement
• Collect forensic artifacts remotely using EDR live response capabilities
• Identify, collect, and preserve cloud logs at engagement start and flag logging gaps
• Hunt for identity-based attacks such as token theft, AiTM and device code phishing, MFA fatigue, malicious OAuth grants, and service principal or IAM role abuse
• Trace attacker activity across control plane and data plane logs to establish what was created, changed, accessed, or exfiltrated
• Support containment such as key rotation, session revocation, Conditional Access changes, and removal of attacker persistence

Skills

Threat hunting

Incident response

PowerShell

Python

Cloud security

Strong writing

Tools

CrowdStrike Falcon

SentinelOne Singularity

Microsoft Defender for Endpoint

AWS

Azure/Entra ID

GCP

Job description

Celestial Innovations Group (CIG) is seeking experienced Threat Hunters focused on digital forensics and incident response. You will work on active matters including ransomware and cloud account compromises, and you will document findings with precise, factual timelines for clients, counsel, and insurers.

Endpoint Threat Hunter and Cloud Threat Hunter capabilities are valued; you will identify compromised systems, write detection rules, and drive containment actions in coordination with