DFIR Analyst

As a DFIR Analyst, you will be tasked with delivering rapid, expert breach response for global enterprises facing active cyber threats as part of SentinelOne's Digital Forensics and Incident Response (DFIR) team, which operates 24x7x365 on a follow-the-sun model. Working under the direction of an investigation's Technical Lead and Engagement Manager, you will execute hands-on forensic analysis, threat hunting, and investigative work across live incidents spanning endpoint, network, and cloud environments, and incident types from ransomware and business email compromise to identity compromise, zero-day exploitation, APT activity, and cloud/SaaS breaches. This is a foundational technical role built on rigor, where every conclusion must be evidence-backed, every case well-documented, and every finding able to hold up to scrutiny.

What Will You Do?

Primary responsibilities include:

Conduct EDR-driven incident response and vendor-agnostic forensic analysis spanning endpoint, network, cloud, and SaaS environments, including ransomware, business email compromise, identity compromise, and other common incident types.

Support malware and memory analysis tasks under the guidance of senior team members.

Acquire and preserve forensic evidence from endpoint, network, and cloud sources, following standard chain-of-custody procedures.

Support case intake by gathering initial technical details to assess scope, and support incident containment actions and security hardening recommendations.

Maintain thorough case documentation throughout each investigation.

Follow standard operating procedures and escalate technical or logistical questions to the assigned Technical Lead or Engagement Manager as needed.

Contribute to customer-facing status updates, formal investigative reports, and handovers of investigations across regions as needed, distilling complex technical findings for stakeholders.

Maintain awareness of emerging threats, attacker techniques, and evolving cybersecurity trends, and contribute observed techniques and indicators to the team's shared knowledge base.

Be responsive to high-pressure triage and analysis during large-scale cybersecurity incidents, maintaining composure.

Participate in a rotating on-call schedule for weekends and holidays.

What Skills and Knowledge Will You Bring?

Ideal candidates will have:

A bachelor's or master's degree in Digital Forensics, Cybersecurity, Computer Science, or a related technical field, or equivalent practical self-study, plus 2 or more years of hands-on experience in digital forensics, incident response, or threat hunting, ideally in a consulting or services delivery environment.

Comfort analyzing Windows environments and forensic artifacts, with a foundational understanding of forensic methodologies, evidence handling, acquisition techniques, and chain-of-custody procedures.

Experience with forensic tools such as X-Ways Forensics, Axiom, and FTK; with EDR/XDR platforms (SentinelOne preferred) and SIEMs; and working knowledge of network protocols and network-based forensic analysis.

Scripting and automation capabilities.

Strong verbal and written communication, with comfort documenting and presenting technical findings clearly and precisely.

Ability to perform technical investigations under pressure in high-stakes, time-sensitive situations, while maintaining composure.

An evident self-starter with intellectual curiosity and the ability to adapt to change.

Knowledge of Linux and macOS forensic analysis, exposure to cloud environments (AWS, Azure, GCP) and memory analysis, and foundational experience conducting malware analysis and understanding the reverse engineering process are preferred.

Familiarity with endpoint threat hunting, cyber threat intelligence platforms, the MITRE ATT&CK framework, and AI-assisted tools for streamlining triage, analysis, or reporting workflows is preferred.

Relevant industry certifications, such as GCFE, GCFA, GREM, CFCE, or EnCE, and interest in contributing to industry publications, research, or speaking engagements are preferred.

Why SentinelOne?

AI is redefining how the world operates and rewriting the rules of security in real time, and SentinelOne was built for this moment. From day one, we architected an AI-native platform designed to operate at machine speed, not as an add-on to legacy systems but as the foundation itself. If you want to build where innovation and impact move together, this is that place.

We invest in our Sentinels with comprehensive, competitive benefits designed to support you and your family:

Equity & Rewards

Restricted Stock Units (RSUs)

Employee Stock Purchase Plan (ESPP)

Performance-based bonus

Time Off & Wellbeing

Flexible time off, on top of the standard 5 weeks PTO

Paid company wellness days and fully paid short-term sick/nursing leave

Gender-neutral parental leave

Insurance & Financial Security

Private medical care benefit

Life and disability insurance

Pension Insurance contribution

Global business travel medical insurance

Employee Assistance Program (EAP)

Work Perks & Flexibility

Global home office allowance

Meal allowance

Hybrid work in Prague (Karlin), Brno (Clubco) or remote in CZ/SK. Only Prague-based employees are required to work from the office at least 2 days//week.

Wellness & Lifestyle

Wellbeing allowance

MultiSport benefit program

Wellness Coach app