Senior Python Developer

Talan; London; On-site; GBP 80,000 - 120,000; Full time

Job summary

A leading company in financial consulting is seeking a seasoned Python Developer to join their distinguished investment banking client in London. This role focuses on the design, development, and support of front-office FX trading systems. You will thrive in a dynamic environment that encourages innovation and direct support for business performance, delivering real-time solutions in one of the most exciting sectors of the market.

Benefits

Competitive day rates or full-time packages

Access to world-class financial institutions

Supportive community of technologists

Continuous learning and career development opportunities

Qualifications

• 10+ years of software development experience.
• Strong emphasis on Python.
• Experience in FX or broader e-trading environments.

Responsibilities

• Design and enhance Python applications for FX trading.
• Collaborate with traders and technologists.
• Maintain and optimize existing code.

Skills

Python

Linux/Unix

Market data understanding

Risk management

Command-line scripting

Software design principles

DevOps best practices

Tools

Docker

CI/CD

FIX

ECNs

Job description

Company Description

For more than 20years, Talan has been advising companies and administrations, supporting them and implementing their transformation projects in the UK and abroad. With a presence on four continents and a headcount of 6000 consultants, our ambition is to reach the billion turnover by the end of 2025.

In the UK, Talan count 500 employees on several sites, the main being: London, Edinburgh and Leeds

Job Description

Talan is hiring a seasoned Python Developer to work with one of our top-tier investment banking clients in London, embedded within their Foreign Exchange technology team. This is an exciting opportunity to play a key role in the design, development, and support of front-office FX trading systems for one of the most dynamic desks in global markets.

You will work in a fast-paced, agile environment directly supporting trading and sales desks, with the opportunity to deliver innovative solutions that have real-time impact on business performance.

Key Responsibilities:

• Design, develop, and enhance Python-based applications supporting FX trading workflows.

• Build robust, scalable, and performant tools for pricing, risk, analytics, and trade lifecycle.

• Collaborate closely with traders, quants, and other technologists to implement front-office solutions.

• Maintain and optimize legacy code while driving continuous improvements and automation.

• Contribute to system architecture and participate in code reviews and technical discussions.

• Deploy and monitor services on Linux environments, ensuring stability and low-latency performance.

Qualifications

Must-Have Experience & Skills:

• 10+ years of professional software development experience, with a strong emphasis on Python.

• Proven track record working within Foreign Exchange (FX) or broader e-trading environments.

• Deep understanding of market data, pricing models, trade flows, and risk management within FX.

• Strong command-line and scripting skills in Linux/Unix environments.

• Excellent understanding of software design principles, testing, and DevOps best practices.

Desirable Skills & Exposure:

• Experience with additional languages (e.g., C++, Java, or JavaScript).

• Exposure to low-latency systems or real-time data processing.

• Experience working with messaging systems and market connectivity (e.g., FIX, ECNs).

• Familiarity with containerization (Docker), CI/CD pipelines, and monitoring tools.

Additional Information

Why Join Talan?

At Talan, we empower our consultants to lead transformation projects across the world’s most prestigious financial institutions. As a trusted partner to the banking and capital markets sector, we offer:

• Competitive day rates or full-time packages

• Access to world-class financial institutions

• A supportive community of technologists and industry experts

• Continuous learning, mentoring, and career development opportunities