Senior Python Developer

Talan; Greater London; On-site; GBP 70,000 - 100,000; Full time

Job summary

A leading technology consulting firm in Greater London is seeking an experienced Python Developer to work with a premier investment bank's FX technology team. The role entails designing and enhancing critical applications that support FX trading workflows. Candidates should have 10+ years of experience in software development, particularly with Python, and a solid background in the FX domain. This is a chance to thrive in a fast-paced environment while contributing to impactful trading solutions.

Benefits

Competitive day rates

Access to world-class financial institutions

Career development opportunities

Qualifications

• 10+ years of professional software development experience.
• Strong emphasis on Python with FX trading environment exposure.
• Deep understanding of market data, pricing models, and risk management.

Responsibilities

• Design and enhance Python-based applications for FX trading.
• Build scalable tools for pricing and trade lifecycle.
• Collaborate with traders and quants to implement solutions.
• Maintain and optimize legacy code.
• Contribute to system architecture and code reviews.

Skills

Professional software development

Python

Foreign Exchange (FX)

Linux/Unix environments

DevOps best practices

Command-line and scripting skills

Tools

Docker

CI/CD pipelines

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.

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