Senior Cybersecurity Threat Hunter

Uni Systemsยท International BU
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๐ŸŒ Remote๐Ÿ“ Brussels, Brussels, Belgium๐Ÿ“ TELECOMMUTEFull time

About this role

At Uni Systems, we are working towards turning digital visions into reality. We are continuously growing and we are looking for a Senior Cybersecurity Threat Hunter to join our UniQue team.

What will you be doing in this role?

  • Lead and manage the threat hunting program, including campaign planning, prioritization, execution, and reporting.
  • Conduct threat research, develop hunting hypotheses, and identify detection gaps to improve security monitoring.
  • Analyze security telemetry from SIEM, EDR, data lakes, and other sources to identify advanced threats.
  • Develop and enhance threat detection use cases, detection models, and engineering frameworks (e.g., OpenTIDE).
  • Design, automate, and maintain threat hunting workflows, playbooks, integrations, and IoC retro-hunting capabilities.
  • Support incident response investigations, purple team exercises, and validation of new detection capabilities.
  • Collaborate with Incident Response, Threat Detection, Threat Intelligence, Malware Analysis, Red/Purple Teams, and external partners (e.g., CERT-EU).
  • Prepare executive briefings, campaign reports, and investigation summaries for senior management.
  • Mentor and train junior threat hunters while promoting threat-informed detection practices.
  • Continuously improve detection coverage by incorporating lessons learned from incidents, red teaming, and threat intelligence.

What will you be bringing to the team?

  • Master's Degree in Computer Science, with a focus on Cybersecurity.
  • Minimum 2 years of experience leading Threat Hunting activities in a SOC/CSOC or equivalent environment.
  • Proven experience in operationalising threat intelligence to support proactive hunting and detection engineering.
  • Proven experience in developing and improving detection coverage to ensure that intelligence driven priorities are converted into timely and relevant detection use cases aligned with CSOC operational needs.
  • Hands on experience with OpenTIDE or an equivalent detection content management platform.
  • Strong practical experience with SIEM platforms, in particular Splunk Enterprise Security, Risk.
  • Based Alerting, or equivalent technologies, for detection engineering, alerting, and use case development.
  • Strong practical experience with EDR solutions.
  • Ability to produce clear, structured, and actionable reporting, including threat assessments and strategic or operational reports, for both technical and non technical audiences.
  • Strong coordination skills with internal teams, business representatives, and external partners.

At Uni Systems, we are providing equal employment opportunities and banning any form of discrimination on grounds of gender, religion, race, color, nationality, disability, social class, political beliefs, age, marital status, sexual orientation or any other characteristics. Take a look at our Diversity, Equality & Inclusion Policy for more information.

Frequently Asked Questions

Is the salary disclosed for the Senior Cybersecurity Threat Hunter position at Uni Systems?
The salary for this Senior Cybersecurity Threat Hunter role at Uni Systems is not publicly listed. Click "Apply Now" to learn more about the compensation package on their official careers page.
Is the Senior Cybersecurity Threat Hunter job at Uni Systems remote?
Yes, this Senior Cybersecurity Threat Hunter position at Uni Systems is remote, with team members based in Brussels, Brussels, Belgium, TELECOMMUTE. You can work from home or anywhere in the supported regions.
Is the Senior Cybersecurity Threat Hunter role at Uni Systems full-time or part-time?
This is listed as a Full time position. It is posted as a Senior Cybersecurity Threat Hunter role in the International BU department at Uni Systems.
Which team or department does the Senior Cybersecurity Threat Hunter at Uni Systems belong to?
This Senior Cybersecurity Threat Hunter position is part of the International BU department at Uni Systems. See the full job description for more information about the team structure and responsibilities.
How do I apply for the Senior Cybersecurity Threat Hunter position at Uni Systems?
Click the "Apply Now" button on this page. You will be redirected to Uni Systems's official application portal hosted on workable where you can submit your application directly.
When was the Senior Cybersecurity Threat Hunter job at Uni Systems posted?
This Senior Cybersecurity Threat Hunter position at Uni Systems was posted on Aug 6, 2026. Apply as soon as possible โ€” early applications are often reviewed first.
Senior Cybersecurity Threat Hunter
Uni Systems
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