Senior Data Engineer

Advantage Smollan Limited; Greater London; Hybrid; GBP 60,000 - 80,000; Full time

Job summary

A leading e-commerce technology company is seeking a Senior Data Engineer in Farringdon, London. This role demands expertise in Google Cloud Platform (GCP) and big data technologies to optimize data pipelines for ecommerce performance. Responsibilities include collaborating with teams, enhancing data processing workflows, and ensuring high data quality standards. Ideal candidates should have solid experience in data engineering and proficiency in Java and Python. Join us for an opportunity to influence significant data solutions in a flexible and innovative environment.

Benefits

Competitive salary and performance‑based bonus

Contributory Pension

24 days holiday plus bank holidays

Health perks including wellbeing apps

Exclusive discounts with Perkbox

Flexible working environment

Opportunities for international travel

Qualifications

• Years of experience in data engineering in eCommerce, digital marketing or web analytics.
• Proven expertise in GCP services.
• Strong development skills in Java and Python.

Responsibilities

• Build, scale, and fine‑tune data pipelines in GCP.
• Enhance and optimise Java and Python pipelines.
• Use Dataplex for cataloguing and governance.

Skills

GCP services (BigQuery, Dataflow, Pub/Sub)

Java programming

Python programming

Apache Airflow

Data governance

Clickstream analytics platforms

Job description

Senior Data Engineer

Permanent | Full Time

Hours: 37.5 hours per week, Monday to Friday

Location: Farringdon, London EC1R 3AU (Hybrid)

We’re on the hunt for a Senior Data Engineer with deep expertise in Google Cloud Platform (GCP) and big data technologies to power the data that fuels ecommerce performance and large‑scale web analytics.

You’ll design, build, and optimise high‑volume data pipelines—batch and streaming—while partnering with analysts, engineers, and QA to deliver trusted insights.

What You’ll Be Doing

• Pipeline Engineering: Build, scale, and fine‑tune data pipelines in GCP (batch & streaming).
• Code Ownership: Enhance and optimise Java and Python pipelines for speed and cost efficiency.
• Data at Scale: Handle weblog, clickstream, behavioural, and ecommerce transaction data.
• Collaboration: Work with engineers, analysts, and QA to deliver high‑quality, reliable data.
• Governance & Quality: Use Dataplex for cataloguing, classification, and governance; enforce data standards and validation.
• Automation & Orchestration: Design workflows in Apache Airflow and automate data quality checks, schema changes, and lifecycle processes.
• Continuous Improvement: Champion best practices, mentor junior engineers, and push for scalable, cost‑efficient solutions.

What We’re Looking For

• Years of experience in data engineering in eCommerce, digital marketing or web analytics.
• Proven expertise in GCP services: BigQuery, Dataflow, Pub/Sub, Dataproc, Dataplex.
• Strong development skills in Java and Python.
• Experience with weblog ingestion & processing, both real‑time and batch.
• Solid hands‑on use of Apache Airflow.
• Familiarity with AWS Kinesis Firehose for log/data ingestion.
• Knowledge of data governance, metadata management, and stewardship.
• Comfort working with clickstream/analytics platforms (e.g., GA4, Adobe Analytics).
• Collaborative mindset—able to partner seamlessly across engineering, analytics, and QA.

Bonus Points For

• Experience building or implementing data quality frameworks.
• Knowledge of data modelling (star schema, data vault, wide tables).
• Exposure to ML pipelines and feature store architectures.
• Previous experience in SaaS or ecommerce environments.

Benefits

• Competitive salary and performance‑based bonus
• Contributory Pension, Death In Service
• 24 days holiday (rising to 27) + bank holidays + birthday day off!
• Health perks: Medicash scheme, wellbeing apps (Calm, WeCare, FoothFairy) and enhanced parental pay
• Exclusive discounts: Perkbox, Tastecard
• Flexible working environment, including opportunities for remote work
• A collaborative, high‑performance culture with significant opportunities for growth
• International travel and events attendance
• Sales incentives, events and SPIFFS, dinner nominations (up to £100)

Why Join Us?

At Flixmedia, you’ll work with cutting‑edge data platforms to solve real‑world ecommerce challenges. We value curiosity, technical mastery, and collaboration. This is your opportunity to take ownership, shape best practices, and leave your mark on a high‑impact data environment.

About Flixmedia

We connect the world's top brands to the largest retailers across the globe and through the power of content syndication we enrich eCommerce shopper experiences. Armed with 20+ years of experience in the e-commerce technology industry, our strengths lie in combining content, the latest technologies and our vast global retailer network to turn browsers into buyers.

Our Vision: To be the leading content experience agency delivering, optimizing & differentiating brand content to an unparalleled global e‑commerce network across industries. Because experience matters.

Our culture: Experience matters – not just for our brands, retailers and shoppers. We value our people for who they are and for their knowledge, skills and experience as individuals and team members. We have taken great strides to ensure our people feel heard and empowered, leading to three consecutive years at a Great Place to Work and Sunday Times Best Places to Work.

Apply

Ready to make your mark? Apply now and help us turn raw data into powerful ecommerce insights.