Back End Python Developer, Crypto Trading Systems

Hubbul; City Of London; On-site; GBP 50,000 - 70,000; Full time

Job summary

A proprietary trading firm in London is seeking a Back End Python Developer to join their elite team. You will develop high-performance systems using Python and work closely with experienced developers. Ideal candidates have 1-2 years of experience with Python 3 and a proactive mindset. The role promises a culture of autonomy and deep technical focus.

Benefits

Autonomy in your role

Culture of innovation

Impactful contributions to the team

Qualifications

• 1-2 years of hands-on experience with Python 3 focusing on performance.
• Familiarity with JIT compilers and code management practices.
• Experience with APIs and deploying applications in Linux environments.

Responsibilities

• Develop and maintain high-performance trading systems.
• Collaborate with a Senior Developer and contribute across the company.
• Solve complex problems in an Agile, data-driven environment.

Skills

Python 3

Agile methodology

APIs

Websockets

Tools

NumPy

JIT compilers (e.g., Numba)

Linux

Job description

Overview

Back End Python Developer, Crypto Trading Systems

Are you ready to code at new heights with crypto trading?

A lean, high-performing proprietary trading firm is on the hunt for a Back End Python Developer to help build and evolve the systems that power their algorithmic trading strategies. This is a rare opportunity to join a tight-knit team of elite technologists who thrive on automation, data, and performance.

What You'll Be Doing

• Develop and maintain high-performance trading systems using Python.
• Work on everything from model deployment and order execution to trade reconciliation and exchange integration.
• Collaborate closely with a Senior Developer and contribute across the company, from research tooling to data processing pipelines.
• Solve complex problems in an Agile, data-driven environment.

What You'll Bring

• 1-2 years of hands-on experience with Python 3, especially with performance-focused libraries like NumPy.
• Familiarity with JIT compilers (e.g., Numba) and best practices in code management and testing.
• Experience working with APIs, Websockets, and deploying applications in Linux environments.
• A proactive mindset and the ability to tackle challenges across multiple domains.

Bonus Points For

• Experience with SQL or other databases.
• Knowledge of lower-level languages like C++.

Why You'll Love It

• Work with a company that's been successfully trading crypto for over 6 years.
• Be part of a small, agile team where your contributions have real impact.
• Enjoy a culture of autonomy, innovation, and deep technical focus.

We Are Aspire Ltd are a Commited employer