Senior Data Engineer

Company: CipherTek Recruitment
Apply for the Senior Data Engineer
Location: London
Job Description:

12-month rolling (multi-year programme)

1 day/week – St Paul’s, London

We’re hiring a Senior & Lead Data Engineer to build a Databricks lakehouse platform in a high-performance, business-critical Front office Risk trading environment.

This is a hands-on engineering role focused on building and optimising large-scale distributed data systems.

This is a highly technical team operating at scale, we’re looking for engineers with deep data engineering expertise, strong low-level Spark knowledge, and experience building high-performance systems using modern Databricks and AI-driven platforms.

This is working for a Front office Risk Data team, so you MUST have experience working closely with Front/middle office users and have good domain knowledge covering Market and credit Risk and derivatives

What you’ll do

  • Defining technical approach for migrating historic data from existing SQL server instances to Databricks then keeping that data flow on a daily/intraday basis.
  • Building pipelines from bronze to silver/gold/platinum
  • Curation of data products in the market risk, credit risk and historic market data domains.
  • Build and optimise Spark pipelines on Databricks
  • Develop a lakehouse platform (Medallion architecture)
  • Own data modelling, architecture, and pipeline design
  • Work with large-scale data (TB-PB)
  • Drive performance, scalability, and reliability in production

What we’re looking for

  • Strong experience running Spark workloads in production
  • Proven ability to optimise Spark at scale (Tb/PB datasets)
  • Solid Python (Scala beneficial, not essential)
  • Experience with data modelling and lakehouse architecture
  • Ability to debug and improve performance in distributed systems

Important

  • Must have recent, hands-on Spark experience
  • Databricks strongly preferred (not essential if Spark depth is very strong)
  • Experience supporting AI/ML or advanced analytics platforms is a big plus
  • Experience in performance-critical environments

Not a fit if

  • Primarily BI / reporting focused
  • Spark used only at small scale or outside production
  • No experience with performance optimisation in distributed systems

Bottom line

We’re looking for engineers who can design, build, and optimise Spark-based systems at scale and operate effectively in a performance-critical environment from day one.

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Posted: September 22nd, 2026