Pfizer
Greece-Thessaloniki Chortiatis
Our Global Cyber Defense team is responsible for safeguarding Pfizer’s digital assets and infrastructure through proactive threat detection, response, and risk mitigation across on-premises, cloud, and hybrid environments.
The Senior Associate, Threat Hunt & Detection supports proactive threat hunting and detection activities to identify malicious behavior that may evade traditional security controls. This role focuses on executing threat hunts, supporting detection use‑case development, and analyzing security telemetry to improve the organization’s ability to detect and respond to advanced threats. Operating within a highly
regulated pharmaceutical environment, the role partners closely with Security Operations and Incident Response, Threat Intelligence, Data Engineering, and Cloud Services teams to strengthen detection coverage and defensive effectiveness across on‑premises, cloud, and hybrid environments.
Conduct proactive threat hunting activities to identify suspicious or malicious activity using security telemetry, hypotheses, and adversary‑based techniques.
Support the development, tuning, and validation of detection use cases, analytics, and alerting logic across security monitoring platforms.
Analyze alerts and hunt findings to determine impact, scope, and potential next steps, escalating validated threats as appropriate.
Partner with SOC and Incident Response teams to transition confirmed detections or hunt findings into operational response workflows.
Collaborate with Cyber Threat Intelligence and Offensive Security teams to incorporate adversary behaviors and attack techniques into hunt and detection activities.
Assist with documenting hunt methodologies, findings, and detection logic to support repeatability and operational maturity.
Contribute to continuous improvement of threat hunting techniques, tooling, and workflows to reduce false positives and improve detection quality.
Support tracking of detection and hunt metrics, including coverage, effectiveness, and recurring gaps.
Ensure threat hunting and detection activities align with internal policies, data handling requirements, and regulatory expectations.
Bachelor’s degree in Cybersecurity, Information Security, Computer Science, or a related field, or equivalent practical experience.
2+ years of experience in cybersecurity, with focus on threat hunting, threat detection, security operations, or incident response.
Strong understanding of attacker techniques, detection concepts, and enterprise security telemetry.
Hands‑on experience analyzing logs, alerts, or telemetry from security monitoring tools.
Ability to document technical findings and communicate clearly with SOC and engineering stakeholders.
Strong analytical and problem‑solving skills, with attention to detail and accuracy.
Working knowledge of scripting or programming languages (e.g., Python, PowerShell, Bash, SQL).
Familiarity with threat intelligence and incident investigation platforms (e.g., Crowdstrike or similar) to support threat research, enrichment, and investigation activities.
Demonstrated experience in an agile work environment possessing qualities such as a collaborative mindset, adaptability to change, and a proactive problem-solving approach.
Familiarity with adversary behavior mapping and threat‑informed defense approaches.
Exposure to cloud or hybrid enterprise environments as part of detection or hunting activities.
Understanding of operating within regulated or highly controlled environments such as healthcare, life sciences, or manufacturing.
Experience contributing to detection improvements, hunt playbooks, or analytical automation.
Relevant training or certifications in security operations, threat detection, or incident response.
Work Location Assignment: Hybrid
Purpose
Breakthroughs that change patients' lives... At Pfizer we are a patient centric company, guided by our four values: courage, joy, equity and excellence. Our breakthrough culture lends itself to our dedication to transforming millions of lives.
Digital Transformation Strategy
One bold way we are achieving our purpose is through our company wide digital transformation strategy. We are leading the way in adopting new data, modelling and automated solutions to further digitize and accelerate drug discovery and development with the aim of enhancing health outcomes and the patient experience.
Flexibility
We aim to create a trusting, flexible workplace culture which encourages employees to achieve work life harmony, attracts talent and enables everyone to be their best working self. Let’s start the
conversation!
Equal Employment Opportunity
We believe that a diverse and inclusive workforce is crucial to building a successful business. As an employer, Pfizer is committed to celebrating this, in all its forms – allowing for us to be as diverse as the patients and communities we serve. Together, we continue to build a culture that encourages, supports and empowers our employees.
Disability Inclusion
Our mission is unleashing the power of all our people and we are proud to be a disability inclusive employer, ensuring equal employment opportunities for all candidates. We encourage you to put your best self forward with the knowledge and trust that we will make any reasonable adjustments to support your application and future career. Your journey with Pfizer starts here!
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