Software Engineer Python Sql - Market Data

Client Server; Greater London; On-site; GBP 128,000 - 173,000; Full time

Job summary

Client Server in London is seeking a Software Engineer with strong Python/SQL skills to join a market data-focused data platform. You will help design, build and operate data-intensive systems with ownership across the development lifecycle.

The role is based in Central London on a full-time basis, offering exposure to hedge fund-scale data and significant bonus earning potential.

Qualifications

• Strong backend development experience with Python.
• Experience of working with financial or market data.
• Experience designing and operating data‑intensive and distributed systems.
• Strong knowledge of relational, NoSQL and columnar databases.
• Keen to own the full development lifecycle.
• Collaborative and pragmatic with strong stakeholder management skills.

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).
• Support platform operations, ensuring reliability and performance.

Skills

Python

SQL

Data platforms

ETL

Distributed systems

CI/CD

Databases

Job description

Software Engineer Python SQL - Market Data Client Server London, England

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