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Data Architect - SC Cleared

Job in City of Westminster, Central London, Greater London, England, UK
Listing for: Onyx-Conseil
Full Time position
Listed on 2026-07-20
Job specializations:
  • IT/Tech
    Data Engineering
Salary/Wage Range or Industry Benchmark: 90000 - 130000 GBP Yearly GBP 90000.00 130000.00 YEAR
Job Description & How to Apply Below
Location: City of Westminster

Overview

Data Architect with active security clearance. The role involves working with large-scale data environments to improve data quality, establish trusted master records, and enable AI-driven data matching. Ideal for an experienced Data Architect with deep expertise in Entity Resolution, Master Data Management (MDM), and large-scale data integration, delivering high-quality solutions that meet customer expectations.

Responsibilities
  • Lead the design and implementation of enterprise Entity Resolution solutions across multiple data sources.
  • Design scalable Master Data Management (MDM) architectures and Golden Record models.
  • Develop record linkage, matching, deduplication, clustering, and survivorship strategies.
  • Define entity hierarchies, data standards, and data governance processes.
  • Monitor and improve matching accuracy, precision, recall, and platform scalability.
  • Support AI and machine learning approaches to improve entity matching and data quality.
  • Collaborate with technical and business stakeholders to deliver high-quality data solutions.
  • Produce architecture documentation and ensure delivery against agreed programme milestones.
Qualifications
  • Proven experience as a Data Architect delivering large-scale data solutions.
  • Strong expertise in Entity Resolution and Master Data Management (MDM).
  • Experience designing Golden Record models, entity hierarchies, and data governance frameworks.
  • Strong knowledge of record linkage, deduplication, clustering, and matching algorithms.
  • Experience implementing survivorship rules, standardisation, and data merging strategies.
  • Experience working with AI and Machine Learning techniques for entity matching is highly desirable.
  • Strong understanding of enterprise data architecture, data quality, and large-scale data integration.
  • Excellent stakeholder engagement, communication, and analytical skills.
  • Experience delivering fixed-scope projects to challenging timescales.
Notes

Active security clearance is required. Some information about the employer and security considerations is included for context. The organisation holds Enhanced Government Security Accreditation and is active in delivering security-cleared talent to organisations that require high levels of security, compliance and assurance.

If you require any adjustments or support during the recruitment process, please let us know and we will work with you to ensure a fair and accessible experience.

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