Senior Data Engineer AWS

Client Server Ltd.; Greater London; Hybrid; GBP 78,000 - 90,000; Full time

Job summary

Client Server Ltd. in London is seeking a Senior Data Engineer to design, build and own a new cloud-hosted data platform on AWS. The role involves collaborating with software engineering, BI, and enterprise architecture teams to enable analytics, AI, and safe transitions.

You will own data ingestion pipelines, migrate from legacy systems, and establish a hub-and-spoke data architecture to support ongoing scale and analytics across the business.

Qualifications

• Senior Data Engineer with hands-on experience building data platforms end-to-end.
• Cloud-native data infrastructure on AWS including IaC.
• Experience with Lakehouse and AWS-native services (S3, Athena, Redshift, Glue, EMR).
• Designing and operating data ingestion pipelines at scale (batch/streaming).
• Experience supporting system migrations, dual-running and reconciliation.
• Ability to enable self-service analytics (e.g., Metabase).
• Exposure to AI-adjacent data work and near real-time analytics.

Responsibilities

• Design, build and own the new cloud-hosted data platform (AWS).
• Ingest data from systems of record and partners; evolve ingestion pipelines.
• Collaborate with Data Platform Lead, software engineering, BI and Enterprise Architect.
• Support migration from legacy monolith and Oracle-based systems and establish a single source of truth.

Skills

AWS

Data pipelines

Lakehouse

Data modelling

Analytics platforms

Collaboration

Tools

Sage

Oracle

HubSpot

Job description

London, Greater London | £78k - £90k per year

Senior Data Engineer (AWS) London / WFH to £90k

Do you have expertise with modern data platform engineering?

You could be progressing your career in a senior, hands‑on role at a well established consumer facing financial services company that help people to manage debt, as they go through a technical transformation and scale‑up following recent investment.

As a Senior Data Engineer you will be responsible for designing, building and owning the new cloud (AWS) hosted data platform from the ground up. You'll collaborate with the Data Platform Lead, work closely with software engineering teams, the BI function and the Enterprise Architect to enable analytics, insight, AI and safe system transitions.

You'll own and evolve data ingestion pipelines, including incremental migration from a legacy monolith and Oracle-based systems, dual-running and reconciliation during platform transition (12-24 month initiative) and be responsible for the ongoing ingestion from systems of record (e.g. Sage, HR systems, HubSpot) and partners with the ultimate aim of establishing a hub-and-spoke, single source of truth data architecture that supports both transition and long term scale.

Location / WFH:

You'll be based in fantastic new offices in London that offer a wide range of facilities including wellness rooms and onsite gym for three days a week with flexibility to work from home twice a week.

About you:

• You are a Senior Data Engineer, with experience of designing and building data platforms end-to-end
• You have hands‑on experience with cloud-native data infrastructure, ideally on AWS using IaC
• You have experience with Lakehouse and modern Data Warehouse patterns; AWS S3-based Lakehouse patterns, Athena / Redshift, Glue, EMR and related native services and Metabase for self‑service analytics
• You have experience of designing and operating data ingestion pipelines at scale (batch and streaming)
• You have experience of supporting system migrations and dual-running, including reconciliation and trust building
• You have a strong understanding of data modelling for analytics
• You have experience of enabling self-service analytics platforms (e.g. Metabase or similar)
• You've had exposure to AI‑adjacent data work, including: preparing data for RAG or ML use cases and supporting streaming or near‑real‑time analytics
• You're collaborative and pragmatic

What's in it for you:

• Salary to £90k
• Bonus
• 25 days holiday
• Pension
• Employee Assistance Programme
• Onsite gym and well-being champions
• X2 volunteering days per year
• Opportunity to make an impact as part of new team in a role you can shape