Data Architect in London

The Data Architect / Migration Consultant will serve as the technical owner of the data foundation layer. This role is responsible for end‑to‑end data architecture, identity design, ingestion engineering, and historical migration to support an enterprise‑grade marketing ecosystem anchored on AWS. The architect ensures data is discoverable, trusted, governed, stitched, activated, and production‑ready, supporting advanced segmentation, personalisation, and analytics use cases across digital estate.

The role demands strong depth in AWS data engineering, data modelling, XDM/identity design, migration frameworks, and MarTech activation patterns, along with hands‑on leadership in defining standards, enforcing data quality, and guiding distributed engineering teams.

Your Role

• Own and evolve the MarTech data foundation across customer, behavioural, transactional, and marketing datasets.
• Drive end‑to‑end data discovery across systems of record, archives, batch/stream providers, and consuming platforms.
• Build and maintain a comprehensive inventory of all data sources required for CDP and marketing activation use cases.
• Design scalable XDM schemas and implement a complete identity architecture with stitching and merge policies.
• Architect AWS‑native ingestion pipelines for batch, streaming, validation, lineage, and reconciliation.
• Integrate activation destinations while ensuring security, governance, compliance, and data‑ready exports.
• Lead historical and delta data migration with full traceability, checkpoints, and production‑cutover readiness.
• Define and operationalize data quality, observability, monitoring, and runbooks with measurable KPIs.

Your Skills

• 10+ years in data architecture, engineering, or solution architecture.
• Deep expertise with AWS data services (S3, Glue, Kinesis, Redshift, EMR, Lambda, Lake Formation).
• Strong background in MarTech/CDP ecosystems, identity design, and activation frameworks.
• Hands‑on experience with historical migrations, delta loads, and streaming ingestion.
• Proficiency in schema modelling, profiling, lineage, mapping, and MDM‑style identity strategies.
• Strong understanding of data governance, security, compliance, and regulated environments.
• Excellent cross‑functional collaboration across marketing, analytics, engineering, and compliance teams.
• Bonus: Exposure to AEP/RTCDP/Marketo, consent management, and AI/ML for identity or anomaly detection.

We are a Disability Confident Employer: Capgemini is proud to be a Disability Confident Employer (Level 2) under the UK Government’s Disability Confident scheme. As part of our commitment to inclusive recruitment, we will offer an interview to all candidates who declare they have a disability, and meet the minimum essential criteria for the role. Please opt in during the application process.

Make It Real (what does it mean for you)

You’d be joining an accredited Great Place to work for Wellbeing in 2024. Employee wellbeing is vitally important to us as an organisation. We see a healthy and happy workforce as a critical component for us to achieve our organisational ambitions. To help support wellbeing we have trained ‘Mental Health Champions’ across each of our business areas, and we have invested in wellbeing apps such as Thrive and Peppy.

You will be empowered to explore, innovate, and progress. You will benefit from Capgemini’s ‘learning for life’ mindset, meaning you will have countless training and development opportunities from thinktanks to hackathons, and access to 250,000 courses with numerous external certifications from AWS, Microsoft, Harvard ManageMentor, Cybersecurity qualifications and much more.

You will be joining one of the World’s Most Ethical Companies®, as recognised by Ethisphere® for 13 consecutive years. We live our values by making ethical business choices every day. Working ethically is at the centre of our culture at Capgemini, meaning you will be helping to create a future we can all be proud of.

Why you should consider Capgemini

Growing clients’ businesses while building a more sustainable, more inclusive future is a tough ask. When you join Capgemini, you’ll join a thriving company and become part of a collective of free-thinkers, entrepreneurs and industry experts. We find new ways technology can help us reimagine what’s possible. It’s why, together, we seek out opportunities that will transform the world’s leading businesses, and it’s how you’ll gain the experiences and connections you need to shape your future. By learning from each other every day, sharing knowledge, and always pushing yourself to do better, you’ll build the skills you want. You’ll use your skills to help our clients leverage technology to innovate and grow their business. So, it might not always be easy, but making the world a better place rarely is.

About Capgemini

Capgemini is an AI-powered global business and technology transformation partner, delivering tangible business value. We imagine the future of organisations and make it real with AI, technology and people. With our strong heritage of nearly 60 years, we are a responsible and diverse group of 420,000 team members in more than 50 countries. We deliver end-to-end services and solutions with our deep industry expertise and strong partner ecosystem, leveraging our capabilities across strategy, technology, design, engineering and business operations. The Group reported 2024 global revenues of €22.1 billion.