Senior Python Developer ETrading

Project Freelance; Greater London; Remoto; GBP 90.000 - 120.000; Tempo pieno

Descrizione del lavoro

Huxley, a trading division of SThree Partnership LLP, seeks a Senior Python Engineer to design, develop and enhance batch processing and operational systems supporting one of the world’s leading exchange operators.

You will design robust Python applications, collaborate across Product and Sales teams, and champion clean, well-tested code while exploring AI-assisted development tools to stay at the forefront of fintech engineering.

Competenze

• Strong commercial experience with Python development.
• Passion for writing clean, maintainable and testable code.
• Solid understanding of Linux environments.
• Experience with SQL and advanced database querying techniques.
• Strong grasp of algorithms, data structures and software engineering fundamentals.
• Computer Science degree or equivalent technical background.

Mansioni

• Design and build robust, highly reliable Python applications underpinning trading operations.
• Collaborate with Product, Business Development and Sales teams to create new exchange services and features.
• Champion software craftsmanship through clean architecture, maintainable code and rigorous testing practices.
• Participate in R&D initiatives, evaluating emerging technologies for competitive advantage.
• Support critical production systems as part of a rotating on-call rota, handling incidents and root cause analysis.
• Work with global engineering teams to share knowledge and drive technical excellence.

Conoscenze

Python development

Clean code

Linux

SQL

Algorithms

CS degree

Formazione

Computer Science degree

Strumenti

PostgreSQL

Snowflake

Django

Flask

FastAPI

Kafka

Airflow

OpenAI Codex

Descrizione del lavoro

What You'll Be Doing

As a Senior Python Engineer, you'll be responsible for designing, developing and enhancing the batch processing and operational systems that support one of the world's leading exchange operators.

You'll:

• Design and build robust, highly reliable Python applications that underpin Client's Europe's trading operations.


• Collaborate closely with Product, Business Development and Sales teams to create innovative new exchange services and features.


• Champion software craftsmanship through clean architecture, maintainable code and rigorous testing practices.


• Participate in research and development initiatives, evaluating and implementing emerging technologies that can drive competitive advantage.


• Support critical production systems as part of a rotating support rota, responding to incidents and contributing to root cause analysis and continuous improvement initiatives.


• Work alongside talented engineering teams across our global organisation, sharing knowledge and driving technical excellence.

What We're Looking For

Essential Skills

• Strong commercial experience with Python development.


• Passion for writing clean, maintainable and testable code.


• Solid understanding of Linux environments.


• Experience with SQL and advanced database querying techniques.


• Strong grasp of algorithms, data structures and software engineering fundamentals.


• Computer Science degree or equivalent technical background.

Highly Desirable

• Experience with Test-Driven Development (TDD), Behaviour-Driven Development (BDD) or similar testing methodologies.


• Experience implementing AI-enabled software development lifecycles and practical use of modern engineering tools such as Claude Code, OpenAI Codex, or similar AI-assisted development platforms.

Preferred Experience

• PostgreSQL and/or Snowflake.


• Modern Python web frameworks including Django, Flask or FastAPI.


• Event-driven architectures and streaming technologies such as Apache Kafka.


• Data orchestration and pipeline platforms such as Apache Airflow.


• Java development experience.


• Financial technology experience, including market data, order management, algorithmic trading, exchange technology, financial systems integration, regulatory compliance or related domains.

Huxley, a trading division of SThree Partnership LLP is acting as an Employment Business in relation to this vacancy | Registered office | 8 Bishopsgate, London, EC2N 4BQ, United Kingdom | Partnership Number | OC387148 England and Wales