Senior Cybersecurity Threat Hunter

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.RequirementsWhat 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.

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.

Requirements

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.

With our people being the driving force behind everything we have achieved in our long history, we successfully provide consulting, design, implementation and support in the field of ICT integrated solutions and services through operations that span across 25+ countries in Europe. We were the first company to begin in an informatics journey that started in 1964, and today, as a member of the dynamic Quest Group, we hold one of the most prominent positions in the sector and claim a seat among the most reliable ICT companies in Europe.We are systems integrators committed to providing innovative and agile solutions and value added services aimed at strengthening our clients’ positioning within a competitive and ever-changing international environment. Through our offices in Greece, Belgium, Luxembourg, Italy, Romania, Cyprus and Spain, and with the valuable support of over 1800 highly talented UniQue people, we serve more than 300 customers across geographies and markets.At Uni Systems, we believe in the continuous development of our UniQue people with learnability lying at the core of our principles: our people participate on a regular basis in engaging learning activities, with technical trainings, leadership programs, workshops and e-learning courses through Udemy and SkillSoft Learning platforms being only few of them. Moreover, in collaboration with ALBA Graduate Business School we are offering a Mini MBA program designed to cover the needs of Quest Group’s employees. At the same time, UniQue talents are being recognized through a specially designed Talent Management program that helps us identify, maintain and develop the top talents within the company.Being a part of our team, in an open and welcoming environment where all voices are heard, brings an array of benefits such as opportunities to contribute to innovation initiatives, hybrid working models, trainings, private medical insurance, mental health programs and more.Based on the immense potential of our UniQue people we can reach excellence and produce sustainable value in the societies around us.Are you ready to #BeUniQue? 😎

With our people being the driving force behind everything we have achieved in our long history, we successfully provide consulting, design, implementation and support in the field of ICT integrated solutions and services through operations that span across 25+ countries in Europe. We were the first company to begin in an informatics journey that started in 1964, and today, as a member of the dynamic Quest Group, we hold one of the most prominent positions in the sector and claim a seat among the most reliable ICT companies in Europe.

We are systems integrators committed to providing innovative and agile solutions and value added services aimed at strengthening our clients’ positioning within a competitive and ever-changing international environment. Through our offices in Greece, Belgium, Luxembourg, Italy, Romania, Cyprus and Spain, and with the valuable support of over 1800 highly talented UniQue people, we serve more than 300 customers across geographies and markets.

At Uni Systems, we believe in the continuous development of our UniQue people with learnability lying at the core of our principles: our people participate on a regular basis in engaging learning activities, with technical trainings, leadership programs, workshops and e-learning courses through Udemy and SkillSoft Learning platforms being only few of them. Moreover, in collaboration with ALBA Graduate Business School we are offering a Mini MBA program designed to cover the needs of Quest Group’s employees. At the same time, UniQue talents are being recognized through a specially designed Talent Management program that helps us identify, maintain and develop the top talents within the company.

Being a part of our team, in an open and welcoming environment where all voices are heard, brings an array of benefits such as opportunities to contribute to innovation initiatives, hybrid working models, trainings, private medical insurance, mental health programs and more.

Based on the immense potential of our UniQue people we can reach excellence and produce sustainable value in the societies around us.

Are you ready to #BeUniQue? 😎