Python Developer

Job description

Python Developer - Algorithmic Trading - London

Let's limit the corporate waffle here; our client is not building another to-do list app or the next social media (translation: advertising) giant. It's an elite algorithmic trading firm in London which is hiring a Python Developer to build, maintain and optimise systems that sit at the very heart of their business.

These systems to do not support the business, they are the business. Imagine building systems which handle millions of events everday, perform calculations in real time and touch every part of the company. Should you get dopamine hits from designing systems with maximum up time, this is likely a good fit.

A day in the life?

• Design and implement core systesms which operate as the traffic control to an algorithmic trading operation
• Profile, optimise and ruthlessy refactor Python code
• Glue together the high performance C++ execution later with the core systems
• Designing the system to be as observable as possible by implementing monitoring, logging and alerting features

Who you're likely to be?

• A proud Computer Scientist with history of designing reliable, high-performance systems
• You know why __slots__ exist and when to use a deque versus a list
• You have a strong understanding of operating systems, memory management and how the kernel schedules threads
• Someone who knows that "perfect" can sometimes be the enemy of "done"

Keen to build systems that sit at the coal-face of 24/7 trading? Please apply to the link attached!

Extra information

Status

Open

Education Level

Secondary School

Location

City of London

Type of Contract

Full-time jobs

Published at

09-03-2026

Profession type

Accountancy

Full UK/EU driving license preferred

No

Car Preferred

No

Must be eligible to work in the EU

No

Cover Letter Required

No

Languages

English