Senior Data Engineer - Finance Data

Client Server Limited; Greater London; Hybrid; GBP 102,000 - 138,000; Full time

Benefits offered by this job

Salary to £120k + bonus

3 weeks per year work anywhere

25 days holiday, increasing to 30

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

Healthcare for you and your family

Cycle to Work scheme

Employee Assistance Program

Job summary

Client Server Limited seeks a Senior Data Engineer to design and operate scalable data pipelines in a finance/FinTech setting. You will build ingestion frameworks on AWS, maintain PostgreSQL and TimescaleDB environments and collaborate with a Data Platform Engineer on architecture and data governance.

The role is based in London with three days in the office and two days remote, offering a salary to £120k plus bonus and a strong benefits package including pension, healthcare, and cycle-to-work.

Qualifications

• Experience as a Data Engineer 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 timeseries data (TimescaleDB or similar).
• Experience with orchestration platforms such as Dagster or Airflow.
• Collaborative with good communication skills.

Responsibilities

• Design and maintain data pipelines, ingestion frameworks and processing workflows.
• Assist migration of datasets into a unified data architecture.
• Contribute to platform design, data modelling, database optimisation.
• Onboard new data sources and ensure data quality and governance.
• Manage and optimise PostgreSQL and time-series environments; ensure reliability, performance and scalability.

Skills

SQL

Python

AWS

Data pipelines

PostgreSQL

Timeseries

TimescaleDB

Dagster

Airflow

Communication

Tools

Data Lakes (S3)

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