Dfir Sr Consultant

One Esecurity; País Vasco; Presencial; EUR 70.000 - 110.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Flexible schedules

Tele-working

Equipe de alto nivel

Descripción de la vacante

One eSecurity, líder en detección de amenazas y DFIR, busca un profesional de ciberseguridad senior certificado y 100% remoto con 5+ años de experiencia en DFIR. El candidato ideal liderará investigaciones complejas, desarrollará detecciones y playbooks, y orientará a equipos de respuesta ante incidentes a nivel global.

Se requiere dominio de TTPs modernos, MITRE ATT&CK, y habilidades de scripting (Python/PowerShell/Bash). Se valoran certificaciones GCFA/GCIH y dominio de inglés y español.

Formación

• 7+ años de experiencia en DFIR, Respuesta a Incidentes, Threat Hunting, SOC u operaciones de ciberseguridad.
• Experiencia liderando investigaciones de incidentes en entornos empresariales.
• Conocimiento profundo de TTPs de atacantes y MITRE ATT&CK.
• Investigación práctica en Windows, Linux y macOS; experiencia con AWS/Azure/GCP y EDR/XDR.
• Habilidades analíticas y de comunicación, capaz de trabajar bajo presión.

Responsabilidades

• Investigar y liderar investigaciones de incidentes complejos en entornos empresariales, nube e híbridos.
• Coordinar y liderar respuesta técnica ante incidentes de alto severidad (ransomware, intrusiones, insider threats).
• Realizar forense digital, threat hunting, triage de malware y análisis de causa raíz.
• Traducir inteligencia de amenazas en detecciones y playbooks de IR.
• Mentorizar analistas y apoyar operaciones IR en equipos de Nivel 1-3.
• Contribuir a la mejora de procesos y herramientas IR.

Conocimientos

DFIR & Endpoint Forensics

Threat Hunting

Incident Response Leadership

Scripting Python

PowerShell

Bash

MITRE ATT&CK

Herramientas

Velociraptor

GRR

KAPE

Volatility

FTK

EnCase

X-Ways

Axiom

Descripción del empleo

Descripción del trabajo

At One eSecurity, we are a market-leading specialist in Threat Detection and Digital Forensics & Incident Response (DFIR). Our commitment to excellence, innovation, and passion drives everything we do. We're looking for a top-tier, fully remote cybersecurity professional with 5+ years of experience in DFIR. If you have a sharp eye for advanced threats and hands-on expertise in incident response, join us and make an impact!

Keys responsibilities

• Lead complex cyber incident investigations across enterprise, cloud, and hybrid environments.
• Coordinate and provide technical leadership during high-severity incidents, including ransomware, intrusions, insider threats, and APT activity.
• Perform advanced digital forensics, threat hunting, malware triage, and root cause analysis across endpoints, networks, cloud, and identity detection strategies and improve detection coverage aligned with adversary TTPs and MITRE ATT&CK.
• Translate threat intelligence into actionable detections, hunting hypotheses, and incident response playbooks.
• Mentor analysts and support incident response operations across Tier 1-3 teams.
• Lead post-incident reviews and contribute to continuous improvement of IR processes, tooling, and operational standards.
• Produce high-quality technical and executive-level reports and automation and operational efficiency through scripting and security engineering improvements.

Requiered experience & qualifications

• 7+ years of experience in DFIR, Incident Response, Threat Hunting, SOC, or related cybersecurity functions.
• Strong experience leading complex cyber incident investigations in enterprise environments.
• Deep understanding of attacker TTPs, intrusion methodologies, and modern threat actor tradecraft.
• Hands-on investigation experience across:Windows, Linux, and macOSActive Directory / Entra IDAWS, Azure, or GCPMicrosoft 365 / Google WorkspaceEnterprise EDR/XDR platforms
• Strong analytical, communication, and problem-solving skills.
• Ability to operate effectively under pressure and communicate with both technical and executive stakeholders.
• Experience mentoring analysts and leading technical response activities.

Technical skills

• DFIR & Endpoint Forensics (Velociraptor, GRR, KAPE, Volatility, FTK, EnCase, X-Ways, Volatility, Axiom)
• Deep knowledge of raw forensic artifacts and operating system internals (Windows, Linux, macOS), with the ability to manually parse and validate artifacts independently of commercial DFIR tooling (MFT, Registry, EVTX, Prefetch, Amcache, Shimcache, SRUM, USN Journal, browser artifacts, memory structures, file system metadata, and timeline reconstruction)
• Detection Engineering & Threat Hunting
• SIEM/XDR and EDR platforms
• Network traffic analysis and network forensics
• Malware triage and reverse engineering
• Scripting and automation (Python, PowerShell, Bash)
• Cyber Threat Intelligence and ATT&CK-based detection methodologies

Nice to have

• Experience in regulated or critical infrastructure environments.
• Experience supporting global incident response security or adversary emulation experience.
• Certifications GCFA, GCIH, or equivalent certifications are highly valued.

Languages

• English and Spanish(required)

What We Offer

• Exciting professional DFIR projects for the largest corporations across the globe.
• Flexible schedules and tele-working.
• A top team of highly recognized professionals in the field.
• An attractive salary.