## External Data Management Senior SpecialistApply: Not Applicable: POL - Mazowieckie Wojewodztwo - Warsaw (Trade Center): Full time: Posted Today: End Date: November 9, 2026 (9 days left to apply): R424115Job DescriptionThe External Data Management Senior Specialist leads trial-level external data strategy and delivery studies. The role owns transfer-spec development, monitors transfers through conduct and lock, drives defect triage and resolution, ensures regulatory/SOP (Standard Operating Procedure) compliance and data readiness, and mentors junior analysts while reporting metrics and lessons learned. They also support the CDM Trial Lead in trial-level data quality oversight and risk identification. **Responsibilities*** Gather external data requirements from protocols, service providers, and study teams.* Ensure external data specifications are developed, compliant with standards and approved by required stakeholders.* Verify that test and first production files conform to approved external data specifications.* Oversee external data file loading, review error logs, and drive resolution of data load issues.* Proactively support the CDM Trial Lead in trial-level data quality oversight and risk identification.* Lead or support Specimen Lifecycle Management reconciliation and external data validation activities to ensure data usability for CDM (Clinical Data Management) review and database lock.* Lead and participate in service provider forums (e.g., kick-off meetings, routine status meetings).* Oversee service provider KPIs, SLAs (Service Level Agreements), metrics, and adherence to timelines; identify and escalate risks to study leadership as needed.* Prepare and present required service provider performance metrics to management, relationship management, and governance forums.* Support QA (Quality Assurance) activities related to service provider qualification, audits, and CAPA resolution.* Act as a reliable partner to GDMS (Global Data Management & Standards), IT, and other cross-functional teams, aligning priorities and closing feedback loops.* Collaborate with IT to troubleshoot and resolve complex platform or integration issues, escalating high-impact risks appropriately.* Mentor junior analysts on tools, checks, and service provider interactions.* Lead trial-level service provider management activities, including performance trending and issue/risk reviews.* Lead or participate in team meetings, providing clear status and feedback on assigned checks and reconciliations.* Contribute expertise, project management, and/or leadership to additional projects and continuous improvement initiatives, including (but not limited to) process, standards, and platform / tool efforts.* Maintain compliance with SOPs (Standard Operating Procedures), ICH-GCP (International Council for Harmonization - Good Clinical Practice), and protocol-specific processes.* Archive required documentation in the eTMF (electronic Trial Master File), including service provider correspondence, mapping specifications, and transfer logs, to ensure traceability and inspection readiness. **Technical skills*** Working understanding the clinical development process and trial data flow.* Proficiency with electronic data capture (EDC) platforms, other data acquisition tools (e.g. eCOA [electronic Clinical Outcomes Assessment]) and external data integrations, including authoring edit check and reconciliation specifications (and/or programming where applicable).* Deep knowledge of appropriate standards and terminology; partners effectively with Standards on new terms and updates.* Experience preparing complete, well-organized documentation for audits and inspections.* Advanced authoring and maintenance of external data specifications with clear implementation guidance for service providers and IT; manages versioning and change control.* Deep experience executing reconciliation (cross-system completeness and consistency), end-to-end (E2E) data lineage and traceability, and reference-range or clinical plausibility checks to ensure accurate, audit-ready external data.* Proven RCA of load and mapping defects; defines corrective actions and contributes to UAT (User Acceptance Training) for external data feeds.* Trial-level metrics literacy (timeliness, completeness, defect rates) to target and verify improvements. **Non-technical skills*** Communicates effectively (oral and written) with technical and business partners and external service providers; translates technical topics for non-technical stakeholders and adapts style to audience.* Manages difficult conversations constructively; negotiates timelines and quality expectations.* Demonstrated ability to provide mentorship to junior team members.* Demonstrated ability to lead day-to-day activities; drives issue triage to closure and coordinates stakeholders.* Prioritizes independently; escalates with context, impact, and recommendation.* Delivers crisp status, decisions, and blockers; maintains decision logs. **Enterprise Leadership Skills*** **Networking & Partnerships** | Develops and sustains productive relationships within and across functions to enable collaboration, alignment, and the achievement of shared goals.* **Executional Excellence** | Drives timely, proactive execution in line with compliance standards, overcoming barriers and delivering strong results that advance broader team and business priorities.* **Ownership & Accountability** | Establishes high standards for performance, takes responsibility for delivering on commitments, and ensures work is executed with accountability, quality, and follow-through. **Candidates must meet one of the following qualifications:*** 8+ years of experience in data management, clinical trial operations, or a related field, or;* Associate's Degree in any field with minimum 7 years of experience working in data management, clinical trial operations, or a related field. Degrees in Nursing, Pharmacy, Life Sciences, Data / Information Technology, Medical Technology, or related disciplines are preferred, or;* Bachelor's Degree in any field with minimum 5 years of experience working in data management, clinical trial operations, or a related field. Degrees in Nursing, Pharmacy, Life Sciences, Data / Information Technology, Medical Technology, or related disciplines are preferred, or;* Advanced Degree (Masters or Doctorate) in any field. Degrees in Nursing, Pharmacy, Life Sciences, Allied Health, Data / Information Technology, Medical Technology, or related disciplines are preferred. **Additional location(s) Compensation Information:****Required Skills:**Clinical Data Management, Data Management, English Language, Stakeholder Management, Vendor Management**Preferred Skills:**Current Employees apply HERECurrent 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**Relocation:****VISA Sponsorship:****Travel Requirements:****Flexible Work Arrangements:**Not Applicable**Shift:****Valid Driving License:****Hazardous Material(s):****Job Posting End Date:**11/9/2026**\\*A job posting is effective until 11:59:59PM on the day BEFORE the listed job posting end date. Please ensure you apply to a job posting no later than the day BEFORE the job posting end date.**