Incident Response & DFIR Lead

JustMarkets; United States; A distancia; USD 140.000 - 210.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Remote work

Medical budget

Education budget

Language learning budget

Wellness budget

Professional education budget

Vacation days

Descripción de la vacante

JustMarkets is seeking an experienced Incident Response & DFIR Lead to join our security program on a full-time basis. You will drive incident response lifecycle, coordinate cross-functional teams, and lead post-incident reviews to prevent recurrence.

You will mentor junior DFIR specialists, develop playbooks, and act as Incident Commander for major security incidents, ensuring timely containment and evidence preservation for regulatory and legal needs.

Formación

• Experience leading complex security incidents and coordinating multiple teams.
• Hands-on IR lifecycle: investigation, containment, eradication, recovery, lessons learned.
• Proficient in investigating endpoint, identity, server, cloud or network compromise with EDR/XDR, SIEM.
• Ability to reconstruct attacker activity and exfiltration.
• Knowledge of digital forensics and chain-of-custody principles.
• Experience with containment actions like endpoint isolation and credential rotation.
• Experience with Windows, Linux and enterprise networking from an investigation perspective.
• Documentation of findings, timelines and evidence clearly.

Responsabilidades

• Lead incident response, containment and forensic coordination for security incidents.
• Act as Incident Commander for major incidents within authority model.
• Coordinate investigation across endpoints, servers, cloud and networks.
• Develop incident playbooks and forensic checklists.
• Lead post-incident reviews and root-cause analysis.
• Provide updates to Cyber Defense leadership and stakeholders.

Conocimientos

Incident response lifecycle

Lead complex incidents

EDR/XDR and SIEM

Digital forensics

Containment actions

Windows and Linux exposure

Documentation & timelines

Investigation coordination

Educación

GCIH

GCFA

GCFE

GNFA

OSCP

CISSP

Herramientas

Cortex XDR

Elastic Security

Velociraptor

KAPE

Volatility

Autopsy

EnCase

FTK

Descripción del empleo

We are inviting you, a highly motivated and results-oriented Incident Response & DFIR Lead to join our team on a full-time basis.

Our team has unique expertise in research, analysis, and product development. By relying on technical insights and a data-driven approach, we create disruptive future-defining innovations of the fin-tech industry that remain our basis for success.

Responsibilities

• Lead incident response, containment and forensic coordination for confirmed security incidents
• Act as Incident Commander for major security incidents within the defined authority model
• Assign incident roles and maintain clear ownership of investigation, containment and recovery actions
• Maintain incident timelines, evidence logs, decision logs and action tracking
• Coordinate investigation across endpoints, servers, identities, cloud platforms, SaaS environments and relevant network telemetry
• Direct forensic collection and analysis required to determine attack path, scope, persistence and impact
• Coordinate containment actions with IAM, Platform, IT, Security Engineering, Product and other technical owners
• Recommend high-impact containment decisions to the Group Manager of Cyber Defense and CISO where required
• Coordinate eradication and recovery activities and ensure systems return to a sufficiently trusted state
• Ensure relevant evidence is preserved for Legal, HR, regulatory, disciplinary and post-incident requirements
• Maintain practical forensic and evidence-handling standards
• Develop and maintain incident playbooks, forensic checklists and containment procedures
• Lead post-incident reviews and root-cause analysis
• Ensure post-incident remediation actions have accountable owners, due dates and follow-up
• Identify telemetry, detection and forensic-readiness gaps exposed during investigations
• Convert investigation findings into recommendations for Detection Engineering, IAM, Security Engineering, Product Security and other control owners
• Support incident exercises and readiness testing
• Develop and mentor Incident Response / DFIR Specialists
• Coordinate with external forensic, incident-response or specialist providers where required
• Provide concise incident updates to Cyber Defense leadership, CISO and relevant stakeholders

Requirements

• Strong hands-on knowledge of the incident response lifecycle: investigation, containment, eradication, recovery and lessons learned
• Experience leading complex security incidents and coordinating multiple technical teams during active response
• Practical experience investigating endpoint, identity, server, cloud or network compromise using EDR/XDR, SIEM and relevant audit logs
• Ability to reconstruct attacker activity, including initial access, credential abuse, persistence, privilege escalation, lateral movement, data access and exfiltration
• Working knowledge of digital forensics, evidence preservation, forensic timelines and chain-of-custody principles
• Experience designing and validating containment actions such as endpoint isolation, account/session revocation, credential rotation, blocking indicators, network restrictions and service isolation
• Experience with Microsoft Entra ID / Active Directory incident investigation
• Understanding of common incident scenarios including ransomware, malware, phishing/BEC, account takeover, cloud/SaaS compromise, data exfiltration and insider misuse
• Strong understanding of Windows, Linux, identity and enterprise networking from an investigation perspective
• Ability to document technical findings, timelines, evidence, assumptions and containment recommendations clearly

Will be a plus

• Hands-on experience with Cortex XDR, Elastic Security or equivalent enterprise platforms
• Experience investigating AWS or other cloud environments
• Experience with forensic tools such as Velociraptor, KAPE, Volatility, Autopsy, Magnet, EnCase, FTK or equivalent
• Experience investigating ransomware, BEC, insider-threat or cloud-account-compromise cases
• Experience developing or improving incident response playbooks and containment procedures
• Experience running tabletop or cyber incident exercises
• Experience working with Legal, Privacy, HR or regulators during security incidents
• Experience managing external DFIR or incident-response retainers
• Python, PowerShell or other scripting experience useful for investigation and evidence processing
• Experience in fintech, payments, brokerage, trading, banking or another regulated environment
• Relevant certifications such as GCIH, GCFA, GCFE, GNFA, OSCP, CISSP or equivalent

We offer

• 20 paid vacation days per year
• 10 paid sick leave days per year
• Public holidays as per the company’s approved Public holiday list
• Medical budget
• Opportunity to work remotely
• Professional education budget
• Language learning budget
• Wellness budget (gym membership, sports gear and related expenses)