Senior Data Engineer | London, UK

Reply; London; On-site; GBP 60,000 - 85,000; Full time

Job summary

A leading company specializing in digital transformation is seeking a Senior Data Engineer in London. The successful candidate will lead strategic data initiatives and manage complex data models, requiring strong technical leadership and hands-on experience in data engineering and cloud platforms. Join a diverse and innovative team committed to modernizing marketing operations and optimally utilizing customer data.

Qualifications

• Proven experience on CDP implementations or large-scale martech/data projects.
• Strong working knowledge of SQL, Python, and modern ETL tooling.
• Experience in agile delivery environments.

Responsibilities

• Lead data workstreams across CDP and marketing technology implementations.
• Translate business needs into scalable technical solutions.
• Design and manage large, complex data models.

Skills

SQL

Python

ETL tooling

Data analysis

Education

5-7 years experience in data engineering

Tools

Airflow

DBT

Spark

AWS

GCP

Azure

Job description

Senior Data Engineer

About Comwrap Reply:
Comwrap Reply is a European leader in digital transformation, specialising in Adobe Experience Cloud, customer data strategy, and composable technology. We help global brands modernise their marketing operations, connect customer experiences, and activate value from their data.

Role overview:
We are looking for a Senior Data Engineer to lead strategic data initiatives across customer data platform (CDP) projects and broader digital transformation programmes. This role is ideal for someone who is 80% technical leader and 20% hands-on contributor-comfortable scoping complex technical requirements, leading delivery, and collaborating across internal and client teams.

Responsibilities:

• Own and lead data workstreams across CDP and marketing technology implementations
• Translate business needs into scalable technical solutions and delivery plans
• Scope new projects, define resource needs, and guide clients through roadmap planning
• Present progress, blockers, and solution options to both technical and non-technical stakeholders
• Design and manage large, complex data models across multiple customer touchpoints and systems
• Build and optimise ETL/ELT pipelines to enable accurate, timely, and actionable data use; monitor and troubleshoot data pipelines, ensuring quality, reliability, and performance
• Support DevOps processes, including managing sprint boards (e.g., Jira) and ensuring clean documentation
• Work closely with client teams to ensure data models support activation, segmentation, and reporting use cases; advise on downstream data usage, including data visualisation and reporting best practices; contribute to the creation of analysis-ready datasets that drive strategic marketing decisions
• Stay ahead of industry trends (e.g. AI, privacy, identity resolution) and contribute ideas for client enablement; support pre-sales or pitch efforts where a data expert is required; attend and potentially speak at industry events or conferences (optional but encouraged)

About the candidate:

• 5-7 years' experience in data engineering, ideally within customer-centric domains
• Proven experience on CDP implementations or large-scale martech/data projects
• Comfortable leading client-facing technical engagements, from roadmap to delivery
• Strong working knowledge of SQL, Python, and modern ETL tooling (e.g. Airflow, DBT, Spark)
• Familiar with cloud platforms (AWS, GCP, or Azure) and modern data stack components
• Experience in agile delivery environments, comfortable managing sprints and backlogs
• A curious mindset with a passion for emerging technologies, especially AI

Reply is an Equal Opportunities Employer and committed to embracing diversity in the workplace. We provide equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type regardless of age, sexual orientation, gender, identity, pregnancy, religion, nationality, ethnic origin, disability, medical history, skin colour, marital status or parental status or any other characteristic protected by the Law.

Reply is committed to making sure that our selection methods are fair to everyone. To help you during the recruitment process, please let us know of any Reasonable Adjustments you may need.

With more than 16,000 experts in over 150 companies worldwide, Reply is a company that specialises in Consulting, Systems Integration and Digital Serv...

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