Senior Python Developer ETrading

Huxley Associates; City Of London; In loco; GBP 65.000 - 90.000; Tempo pieno

Descrizione del lavoro

Huxley is seeking a Senior Python Engineer to design, develop and enhance batch processing and operational systems supporting a major exchange operator. You will build robust Python applications, collaborate with product, business development and sales, and champion clean architecture and rigorous testing.

You will participate in research, evaluate emerging technologies, respond to incidents on a rotating on-call, and work with global teams to drive technical excellence across the platform.

Competenze

• Strong commercial experience with Python development.
• Proven ability to write clean, maintainable, well-tested code.
• Solid understanding of Linux environments.
• Experience with SQL and advanced database querying.
• Strong grasp of algorithms and data structures.
• Degree in Computer Science or equivalent.

Mansioni

• Design and build robust Python applications that underpins trading operations.
• Collaborate with Product, Business Development and Sales to create new exchange services.
• Champion software craftsmanship with clean architecture and testing.
• Participate in R&D to evaluate emerging technologies.
• Support production systems with on-call and incident analysis.

Conoscenze

Python development

Clean code & tests

Linux basics

SQL querying

Algorithms & DS

Java development

OpenAI Codex / Claude Code

Formazione

Computer Science degree

Strumenti

Django

Flask

FastAPI

PostgreSQL

Snowflake

Apache Kafka

Airflow

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.

To find out more about Huxley, please visit

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 | OC(phone number removed) England and Wales