Senior Data Engineer, London - FinTech

Oliver Bernard; Greater London; Hybrid; GBP 90,000 - 120,000; Full time

Job summary

Oliver Bernard is hiring a Senior Data Engineer in London to design and build scalable data platforms for fintech use cases, leveraging Python, PySpark and SQL to deliver robust analytics. You will work in a hybrid environment, collaborating with product and data teams, implementing data models, warehousing best practices, and cloud-based pipelines on AWS with modern CI/CD.

You’ll optimize data flows, champion observability, and mentor junior engineers.

Qualifications

• Strong Python and PySpark development experience in a data-heavy fintech setting.
• Advanced SQL and working with large datasets across data warehouses.
• Experience with Snowflake or Databricks and cloud data platforms.

Responsibilities

• Design, develop and evolve data infrastructure for critical financial services use cases.
• Build reliable ETL/ELT pipelines with modern cloud tech and orchestration tools.
• Implement data modeling, warehouse design, observability and CI/CD practices.

Skills

Python

PySpark

SQL

Data modeling

Cloud (AWS)

CI/CD

Tools

Snowflake

Databricks

AWS

Airflow

Job description

London - hybrid, 3 - 4 days onsite weekly

We’re partnered with a fast-growing FinTech who help leading financial institutions solve complex operational and compliance challenges through innovative SaaS solutions and expert-led technology delivery.

The Role

As a Senior Data Engineer, you’ll play a key role in designing, developing, and evolving modern data infrastructure that supports critical financial services use cases.

You’ll ideally have:

• Strong commercial experience with Python and PySpark
• Advanced SQL skills and experience working with large datasets
• Knowledge of Snowflake or Databricks
• Strong understanding of data modelling and warehouse design
• Experience with modern cloud data platforms (AWS) and orchestration tools
• Strong software engineering practices, including testing, CI/CD, observability, and clean code principles

London - hybrid, 3 - 4 days onsite weekly