Engineering Senior Specialist

ROU - Bucuresti - Bucuresti (Ana Tower)CompetitiveHybridFull time0 applicants

About this role

Job Description

We are seeking for Engineering Senior Specialist to

design, engineer, and operate enterprise-scale XDR and SIEM platforms

across

Microsoft and Google security ecosystems

. This role operates at the intersection of

security platform engineering, detection engineering, and operational resilience

, with a clear mandate to improve

threat detection quality, response effectiveness, data fidelity, and platform reliability

in a global enterprise environment.

The ideal candidate brings

deep hands-on engineering expertise

, an

operations-first mindset

, and the ability to collaborate effectively with

SOC (CFC), cloud, identity, and infrastructure teams

.

Responsibilities

  • Platform Engineering & Operations
  • Engineer, operate, and continuously optimize
  • Microsoft Sentinel
  • and
  • Microsoft Defender XDR
  • (Defender for Endpoint, Identity, Office, and Cloud).
  • Engineer and operate
  • Google Security Operations (Chronicle SIEM)
  • to support high-volume security telemetry ingestion, analytics, and long-term retention.
  • Design and maintain
  • scalable ingestion architectures
  • , including normalization, enrichment, routing, and retention across hybrid and multi-cloud environments.
  • Ensure platform reliability, performance, cost awareness, and operational stability.
  • Detection Engineering & Threat Response Enablement
  • Support detection tuning activities to reduce false positives, improve signal-to-noise ratio, and align with SOC workflows.
  • Provide deep platform and data expertise to support
  • incident investigation, threat hunting, and response activities
  • .
  • Align detection logic with
  • MITRE ATT&CK
  • and threat-informed defense principles.
  • Data Quality, Telemetry & Observability
  • Support onboarding, validation, parsing, and ongoing quality monitoring of security telemetry sources.
  • Partner with application, platform, and infrastructure teams to
  • identify and close logging and visibility gaps
  • .
  • Establish and enforce data quality standards to ensure reliable detection, investigation, and reporting.
  • Ensure logging and monitoring practices meet
  • internal security standards and regulatory requirements
  • .
  • Automation & Continuous Improvement
  • Implement automation for
  • detection lifecycle management, enrichment, and response orchestration
  • using SOAR and native platform capabilities.
  • Drive
  • standardization, documentation, and runbook development
  • to improve operational maturity and resiliency.
  • Contribute to platform roadmaps, reliability improvements, and
  • technical debt reduction initiatives
  • .
  • Collaboration & Governance
  • Work closely with
  • CFC/SOC, Cloud Security, Identity, Infrastructure, and Compliance
  • teams.
  • Support audit and compliance activities, including
  • SOX and regulatory log‑retention requirements
  • .
  • Provide technical input into onboarding decisions, platform changes, and security architecture reviews.
  • Required Qualifications:
  • 5+ years of experience in
  • security engineering, detection engineering, or SOC engineering
  • roles.
  • Strong hands-on experience with
  • Microsoft Sentinel
  • and
  • Microsoft Defender XDR
  • .
  • Experience with
  • Google Security Operations (Chronicle SIEM)
  • or equivalent large-scale cloud SIEM platforms.
  • Proficiency in
  • KQL
  • and experience authoring structured detection logic.
  • Solid understanding of
  • cloud security (Azure and/or GCP)
  • , identity, endpoint, and network telemetry.
  • Experience operating security platforms in
  • large, complex enterprise environments
  • .
  • Required Skills:
  • Certificate Services, Certificate Services, Cloud Security, Cyber Defense, Cybersecurity, Cybersecurity Analytics, Cybersecurity Operations, Data Quality Control, Delivery of Security Applications, Design Applications, Enterprise Resource Planning (ERP), Identity Access Management (IAM), Incident Investigations, Incident Response, Information Security, Microsoft Azure, Network Segmentation, Operational Technology (OT) Security, Regulatory Requirements, Security Analytics, Security Architecture Design, Security Architecture Review, Security Engineering, SLA Management, System Designs {+ 3 more}
  • Preferred Skills:
  • Current Employees apply
  • HERE
  • Current Contingent Workers apply
  • HERE
  • Search Firm Representatives Please Read Carefully
  • Merck & Co., Inc., Rahway, NJ, USA, also known as Merck Sharp & Dohme LLC, Rahway, NJ, USA, does not accept unsolicited assistance from search firms for employment opportunities. All CVs / resumes submitted by search firms to any employee at our company without a valid written search agreement in place for this position will be deemed the sole property of our company.  No fee will be paid in the event a candidate is hired by our company as a result of an agency referral where no pre-existing agreement is in place. Where agency agreements are in place, introductions are position specific. Please, no phone calls or emails.
  • Employee Status:
  • Regular

EU Requirements

Job Details

Posted10 May 2026
Closes9 June 2026
Job TypeFull time
Work ModeHybrid

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