Data Architect at X4 Technology, London Area, £500 per day

Job Title: Data Architect

Location: 5 days a week on-site in either London or Reading

Day Rate: £500/day (OUTSIDE IR35)

Contract Length: 3 Months (extendable)

Data Architect - Role & Responsibilities

• Assess the current data landscape and architecture across Customer, Finance and Network domains, including the existing GCP/BigQuery Data Lakehouse.
• Conduct stakeholder workshops and interviews to understand business drivers, data flows, pain points and architectural requirements.
• Map data sources, integrations, ETL/ELT pipelines and data flows, identifying duplication, silos, quality issues and scalability gaps.
• Design the target-state data architecture, including data models, technology stack, governance framework and data ontology for future AI/analytics use cases.
• Produce architecture documentation, data inventories, maturity assessments and technology roadmaps, presenting findings and recommendations to senior stakeholders.

Data Architect - Required Experience

• 10+ years' experience in Data Architecture/Data Engineering, with strong experience designing enterprise data platforms and target-state architectures.
• Strong hands-on experience with GCP and BigQuery, ideally within a large-scale Data Lakehouse or enterprise data environment.
• Strong knowledge of ETL/ELT, data integration, APIs, batch processing, CDC and data modelling.
• Experience with data governance, data quality, metadata, lineage and MDM, with an understanding of security and GDPR requirements.
• Excellent client-facing and stakeholder management skills, with experience delivering architecture assessments, workshops and data strategy/roadmap engagements; Telecoms experience highly advantageous.

Interviews: October 2026

Start Date: November 2026

How to Apply:

Apply to Gary Hargreaves at X4 Technology to learn more about the role or connect with me on LinkedIn to hear about regular job updates available with X4 Technology