Senior Threat Hunter

JR Spain; Donostia/San Sebastián; Presencial; EUR 50.000 - 80.000; Jornada completa

Descripción de la vacante

JR Spain está buscando un Senior Threat Hunter para su grupo de servicios gestionados. El candidato ideal tiene más de 7 años de experiencia en ciberseguridad, habilidades en análisis forense y una comprensión profunda de las amenazas cibernéticas. Ofrecemos un ambiente flexible con un equilibrio entre trabajo y vida personal, múltiples beneficios y oportunidades de formación. Se requiere fluidez en inglés y títulos relevantes.

Servicios

23 días de vacaciones anuales

Plan de Cuidado de Salud

Flexibilidad en el trabajo

Acceso gratuito a plataformas de formación

Formación

• Experiencia probada de más de 7 años como Cyber Threat Hunter o respuesta a incidentes.
• Excelentes habilidades de comunicación para explicar hallazgos técnicos a audiencias diversas.
• Conocimientos profundos de los sistemas operativos esenciales como Linux/Unix y Windows.

Responsabilidades

• Identificar y mitigar proactivamente amenazas cibernéticas y actividades de adversarios.
• Analizar datos de seguridad de múltiples fuentes para detectar brechas de seguridad.
• Desarrollar y mantener informes sobre el estado de ciberseguridad del cliente.

Conocimientos

Análisis de Red

Investigación Forense

Python

Seguridad en la Nube

Pensamiento Crítico

Educación

Título en Ciberseguridad o Informática

Herramientas

Herramientas SIEM

Plataformas EDR

Data Lake

Descripción del empleo

Social network you want to login/join with:

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Client:

CyberProof

Location:

Job Category:

Other

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EU work permit required:

Yes

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Job Reference:

650103961938191974432460

Job Views:

2

Posted:

23.07.2025

Expiry Date:

06.09.2025

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Job Description:

CyberProof is a cyber security services and platform company whose mission is to help our customers react faster and smarter – and stay ahead of security threats, by creating secure digital ecosystems. CyberProof automates processes to detect and prioritize threats early and respond rapidly and decisively.
CyberProof is part of the UST Global family. Some of the world’s largest enterprises trust us to create and maintain secure digital ecosystems using our comprehensive cyber security platform and mitigation services.
We are looking for a talented
Senior Threat Hunter
who will be part of our growing managed services group, which monitors, investigates, and resolves security incidents, violations, and suspicious activities. The successful candidate will be responsible for proactively identifying and mitigating cyber threats, adversary activity, and potential risks that evade traditional security defenses.
Main tasks and accountabilities will be:
Proactively drive hunting and analysis against the available dataset from various sources including, network, endpoint, and cloud environments to look for indicators of security breaches.Leverage internal and external resources to research threats, vulnerabilities, and intelligence on various attackers and attack techniques, to form hunting workflows and mitigation steps.Innovate new processes and workflows to deploy proactivity in all aspects to address complex threats and risks.Design and implement data mining techniques to extract meaningful insights from large data sets.Develop and maintain an understanding of the latest cybersecurity technologies, trends and threats.Participate in the development of reports and dashboards that provide insights into the cybersecurity posture of the client.Collaborate with cross-functional teams to develop and implement new tools, techniques, and response workflows to enhance cybersecurity.
What do we expect from you?
Proven experience of 7+ years as Cyber Threat Hunter or Incident Response, including high skills in forensics and investigation of network, endpoint and cloud logs.Deep and proven knowledge and understanding of TTPs, attack frameworks (e.g., MITRE ATT&CK), and advanced threat actors.Experience with security applications such as data lake, SIEM tools and EDR platforms.Deep and proven knowledge of operating systems essentials including Linux/Unix and Windows.Experience analyzing network traffic, packet captures, and log data.Proven skills on Hunting on Cloud assets – AWS, GCP, Azure.Strong understanding of Python libraries commonly used in data science, such as Pandas, and MsticPY.Advantageous to have in-depth knowledge of Jupyter Notebooks and experience in utilizing them for data analysis, visualization, and prototyping.Critical thinking, problem-solving skills and innovative way of thinking.Excellent communication skills to explain technical findings to both technical and non-technical audiences.Excellent organization, time management, and attention to detail.Bachelor’s degree in Cybersecurity, Information Technology, Computer Science, or a related field (or equivalent experience).Relevant certification (e.g., GIAC GCIH, GCFA, GREM, OSCP, CEH) is an advantage.Fluent in English
What do we offer?
23 days of Annual Leave plus the 24th and 31st of December as discretionary days.Numerous benefits (Heath Care Plan, teleworking compensation, Life and Accident Insurances).`Retribución Flexible´ Program: (Meals, Kinder Garden, Transport, online English lessons, Heath Care Plan…)Free access to several training platformsProfessional stability and career plansReferral programThe option to pick between 12 or 14 payments along the year.Real Work Life Balance measures (flexibility, WFH or remote work policy, compacted hours during summertime…)