Python Middle Office Developer - Trading Data & Performance

LMAX Group; Greater London; Hybrid; GBP 65,000 - 100,000; Full time

Benefits offered by this job

25 days holiday

Bonus

Pension contribution

Private medical, dental, and vision

Job summary

LMAX is seeking a Python developer for its middle-office team in London. You will build Python tools and services handling large financial datasets, focusing on performance and data engineering while collaborating with research, infrastructure and treasury teams.

The role involves developing a trading monitoring and back-testing framework, with emphasis on clean, maintainable code and robust testing in a fast-paced environment.

Qualifications

• Proficient Python development with data tooling.
• Ability to understand business requirements and translate to robust software.
• Experience writing tests and maintaining test suites.

Responsibilities

• Produce clear, well-tested Python code for middle-office tasks.
• Develop data pipelines and tooling for large financial datasets.
• Collaborate with research and infrastructure teams to improve performance.
• Focus on maintainable, high-quality software with good documentation.

Skills

Python development

Team collaboration

Independent work

Education

Science or Maths degree

Tools

Numpy/Pandas/SQL

pytest

pybind/nanobind

Airflow

Polars

Jenkins

Websocket/TCP-IP

Job description

LMAX is seeking a Python developer for its middle-office team in London. You will build Python tools and services handling large financial datasets, focusing on performance and data engineering while collaborating with research, infrastructure and treasury teams.

The role involves developing a trading monitoring and back-testing framework, with emphasis on clean, maintainable code and robust testing in a fast-paced environment.