Senior Data Engineer - Finance Data

Client Server; Greater London; Hybrid; GBP 110,000 - 130,000; Full time

Benefits offered by this job

Healthcare for you and family

Cycle to Work scheme

Pension 9% (employer 5%, employee 4%)

3 weeks per year work anywhere

Employee Assistance Program

Job summary

Client Server is seeking a Senior Data Engineer in London to build and evolve a modern, scalable AWS cloud data platform. You will design and maintain data pipelines, ingestion frameworks and processing workflows while migrating datasets into a unified architecture.

Key focus areas include PostgreSQL and time-series data management, data quality, governance, and platform reliability. Flexible London hybrid work with three days in the office and two work-from-home days.

Qualifications

• Experience building data pipelines in finance/FinTech environments.
• Strong SQL and Python coding skills.
• Strong AWS experience, including Data Lakes and S3.
• Experience building and supporting large-scale data pipelines.
• Experience with PostgreSQL.
• Experience with times series data (TimescaleDB or similar).
• Experience with orchestration platforms such as Dagster or Airflow.
• Collaborative with strong communication skills.

Responsibilities

• Design and maintain data pipelines, ingestion frameworks and processing workflows.
• Support migration of datasets into unified data architecture.
• Collaborate with Data Platform Engineer on platform design, data modelling and database optimisation.
• Onboard new data sources and ensure data quality, governance, reliability, and scalability.

Skills

Data Engineering

SQL

Python

AWS

Data Lakes

PostgreSQL

TimescaleDB

Dagster

Airflow

Communication

Tools

Dagster

Airflow

Job description

Senior Data Engineer (Python SQL AWS) London / WFH to £120k

Do you have experience of building data pipelines within finance / Fintech environments?

You could be progressing your career in a senior, hands‑on Data Engineer role at a scaling Investment Research tech company in an impactful role with great benefits and perks.

As a Senior Data Engineer you will be at the intersection of data engineering, database management and platform delivery. You will help build and evolve a modern, scalable AWS cloud based data platform.

Your focus will be on designing and maintaining data pipelines, ingestion frameworks and processing workflows, supporting the migration of existing datasets into a unified data architecture. Collaborating closely with the Data Platform Engineer, you will contribute to platform design, data modelling, database optimisation and the onboarding of new data sources.

You’ll also be responsible for managing and optimising PostgreSQL and time‑series database environments, improving data quality and governance and ensuring platform reliability, performance and scalability.

Location / WFH:

You’ll join colleagues in the London office three days a week with flexibility to work from home the other two days.

About you:

• You have experience as a Data Engineer, working with financial data / market data in a FinTech or financial services environment
• You have strong SQL and Python coding skills
• You have strong AWS experience, including Data Lakes and S3
• You have experience of building and supporting large scale data pipelines
• You have experience with PostgreSQL
• You have experience with times series data, they use TimescaleDB but other experience with similar platforms is fine
• You have experience with Orchestration platforms such as Dagster or Airflow
• You're collaborative with great communication skills

What's in it for you:

• Salary to £120k + bonus
• X3 weeks per year work anywhere
• 25 days holiday, increasing to 30
• Pension 9% (company contributes 5%, employee contributes 4%)
• Healthcare for you and your family
• Cycle to Work scheme
• Employee Assistance Program