Software Engineer Python SQL - Market Data

Client Server Limited; Greater London; On-site; GBP 130,000 - 150,000; Full time

Benefits offered by this job

Bonus

Pension

Job summary

Client Server Limited is recruiting a Software Engineer to join a London-based team working on a modern data platform. The role emphasizes Python and SQL in a finance-focused data environment, with ownership across data engineering, distributed systems, and infrastructure.

The successful candidate will design data components, optimize ETL pipelines, and contribute to reliability and performance, with opportunities for growth and strong bonus potential.

Qualifications

• Strong backend development experience with Python.
• Experience with financial or market data.
• Ability to design and operate data-intensive, distributed systems.
• Strong knowledge of databases (Relational, NoSQL, Columnar).

Responsibilities

• Design and build data platform components using Python.
• Develop and optimise ETL pipelines, Data Lakes/Lakehouses, and distributed systems.
• Improve infrastructure, observability and CI/CD practices.
• Maintain and evolve existing systems (microservices, ETL, Excel add-ins).

Skills

Python

SQL

Data platform

ETL pipelines

Distributed systems

CI/CD

Education

2:1 in STEM or MSc

Tools

CI/CD tooling

Relational/NoSQL/Columnar databases

Job description

Software Engineer Python SQL - Market Data

London, Greater London | £130k - £150k per year

Software Engineer / Developer (Python SQL) London to £150k+

Are you a data savvy Software Engineer with strong Python coding skills?

You could be joining a Hedge Fund with complex work and substantial bonus earning potential.

As a Software Engineer you will join a growing team building a modern medallion architecture data platform, working across everything from data engineering and distributed systems to infrastructure and frontend. This is a hands-on role in a small, collaborative team where you'll have real ownership and impact.

Your role:

• Design and build data platform components using Python
• Develop and optimise ETL pipelines, Data Lakes/ Lakehouses and distributed systems
• Improve infrastructure, observability and CI/CD practices
• Maintain and evolve existing systems (microservices, ETL, Excel add-ins)
• Support platform operations, ensuring reliability and performance

Location / WFH:

You'll join colleagues in the impressive Central London office on a fulltime basis, Monday to Friday.

About you:

• You have strong backend development experience with Python
• You have experience of working with financial or market data
• You have experience of designing and operating data-intensive and distributed systems
• You have a strong knowledge of databases (Relational, NoSQL and Columnar)
• You're keen to take ownership and work across the full development lifecycle
• You're collaborative and pragmatic with strong stakeholder management skills
• You have achieved a 2.1 or above in a STEM discipline, likely to have studied to MSc

What's in it for you:

As a Software Engineer / Developer (Python SQL) you will receive a competitive package:

• Salary to £150k
• Bonus
• Pension
• Self development and career progression opportunities