Developer - FX Derivatives

Pontoon Solutions; Bromley; On-site; GBP 60,000 - 90,000; Full time

Job summary

A leading company in financial services is seeking a Senior Python Developer to join their Front Office Technology team. This role offers a unique opportunity to design and build critical trading systems, collaborating with traders and quants in a fast-paced environment. Ideal candidates should have strong Python skills and experience in financial systems, contributing positively to the trading landscape.

Qualifications

• Strong background in Python and knowledge of financial systems.
• Experience with algorithms and data structures relevant for trading.
• Ability to work under pressure and solve real-time issues.

Responsibilities

• Build and maintain mission-critical trading systems using Python.
• Design low-latency, high-availability solutions for real-time trading.
• Collaborate with global dev teams in an agile setup.

Skills

Python

Algorithms

Data structures

Problem-solving

Education

Degree in Computer Science, Engineering, Mathematics, or Physics

Tools

CI/CD

SQL

NoSQL

Job description

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Digital Principle Recruiter @ Pontoon Solutions | Talent Management

Contract: 12 months initially (via umbrella)

Shape the future of global trading technology.

A high-performing Front Office Technology team is looking for an exceptional Senior Python Developer to design and build cutting-edge, globally distributed financial systems. This is a unique opportunity to work in a fast-paced trading environment, collaborating directly with traders, quants, and operations teams to drive innovation in FX, Fixed Income, and Derivatives platforms.

If you’re a technologist at heart who writes clean, maintainable code and thrives under pressure, we want to hear from you.

What You’ll Be Doing

• Building and maintaining mission-critical trading and pricing systems using Python (or C#/Java/C++)
• Designing resilient, low-latency, high-availability solutions for real-time trading
• Partnering with global dev teams in an agile setup (XP, Scrum, Kanban)
• Solving production issues as part of 3rd line support in live trading environments
• Collaborating with front-office users to deliver robust, scalable tools
• Contributing to CI/CD pipelines and automated test strategies

What You’ll Bring

• Strong background in Python (or other OO/functional languages)
• A degree in Computer Science, Engineering, Mathematics, or Physics
• Deep knowledge of algorithms, data structures, design patterns
• Experience in financial systems, preferably in FX, Derivatives, or Fixed Income
• Solid understanding of messaging middleware, TCP/IP networking
• Familiarity with agile development, CI/CD, and testing frameworks
• Calm and effective when tackling real-time production issues
• Experience with FX options or other derivatives
• Exposure to front-office platforms like Athena, SecDB, or Quartz
• Knowledge of financial protocols (e.g., FIX 4.4, FpML)
• Integration experience with broker feeds, trade repositories
• Proficiency in SQL or NoSQL database environments

This is more than just a coding role — it’s your chance to work on some of the most sophisticated trading systems in the financial world. You'll be joining a collaborative team that values smart engineering, creative problem-solving, and technical excellence — all while building software that has real-time, real-world impact.

Candidates will ideally show evidence of the above in their CV to be considered please click the “apply” button.

Please be advised if you haven't heard from us within 48 hours then unfortunately your application has not been successful on this occasion, we may however keep your details on file for any suitable future vacancies and contact you accordingly.

Pontoon is an employment consultancy. We put expertise, energy, and enthusiasm into improving everyone’s chance of being part of the workplace. We respect and appreciate people of all ethnicities, generations, religious beliefs, sexual orientations, gender identities, and more. We do this by showcasing their talents, skills, and unique experience in an inclusive environment that helps them thrive.

Seniority level

• Seniority level

  Mid-Senior level

Employment type

• Employment type

  Contract

Job function

• Job function

  Information Technology

• Industries

  Financial Services and Banking

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