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Front Office Python Developer Commando Development Team

Job in City Of London, Central London, Greater London, England, UK
Listing for: Rex Technologies GmbH
Full Time position
Listed on 2026-07-26
Job specializations:
  • Finance & Banking
Salary/Wage Range or Industry Benchmark: 90000 - 120000 GBP Yearly GBP 90000.00 120000.00 YEAR
Job Description & How to Apply Below
Position: Front Office Python Developer [Commando Development Team]
Location: City Of London

About Marex

Marex Group plc (NASDAQ: MRX) is a diversified global financial services platform providing essential liquidity, market access and infrastructure services to clients across energy, commodities and financial markets. The group provides comprehensive breadth and depth of coverage across four core services: clearing, agency and execution, market making, and hedging and investment solutions. It has a leading franchise in many major metals, energy and agricultural products, with access to 60 exchanges.

The group provides access to the world’s major commodity markets, covering a broad range of clients that include some of the largest commodity producers, consumers and traders, banks, hedge funds and asset managers. With more than 40 offices worldwide, the group has over 2,300 employees across Europe, Asia and the Americas.

For more information visit

Job Reference: VN2480 Department description

Marex Solutions is a division of Marex providing investment banking solutions with a fintech mindset. We aim to become the world's leading manufacturer of cross asset, customised derivatives. The Solutions COO team plays a critical role in ensuring operational efficiency and strategic execution of business initiatives.

Role Summary

Marex Solutions is a division of Marex Spectron providing investment banking solutions with a fintech mindset. We aim to become the world’s leading manufacturer of cross asset, customised derivatives. We are looking for a Front Office Developer (Commando) to deliver tools and applications to the trading desk to cover and improve hedging & risk management, pricing and ad-hoc trading activities. To succeed in this role, the candidate must have a strong technological background and good understanding of the trading activity.

Based in London, the Front Office Developer will be part of the Derivatives Engine within Marex Solutions and will work closely with Trading, Quants and Technology.

Responsibilities Role specific:
  • The primary task would be to design, implement, and participate in the support of applications for the Derivatives Engine Trading Desk, to cover hedging & risk management, pricing, and ad-hoc trading activities.
  • In addition, the role would include:
  • Ensure that trading applications are conforming to Marex technology testing standards and that proper support plans are in place.
  • To Work closely with Quants and Technology to ensure that Trading requirements are understood and accounted for in the design and
  • implementation of global applications. When needed, help with the handover of tactical applications to Technology teams. o Work closely with
  • Trading to improve the technological maturity of the team and identify areas where gains can be made.
  • Desire to gain deep understanding of structured products trading activities.
All staff:
  • Ensure compliance with the company’s regulatory requirements under the FCA.
  • Adhere to the operational risk framework for your role ensuring that all regulatory or company determined parameters are complied with.
  • Role model for demonstrating highest level standards of integrity and conduct and reflecting Company Values.
  • At all times comply with the FCA’s Code of Conduct.
  • Ensure that you are fully aware of and adhere to internal policies that relate to you, your role or any other activities for which you have any level of responsibility.
  • Report any breaches of policy to Compliance and/ or your supervisor as required.
  • Escalate risk events immediately.
  • Provide input to risk management processes, as required.
Competencies:
  • Self-starter.
  • A collaborative team player, approachable, self-efficient and influences a positive work environment.
  • Demonstrates curiosity.
  • Resilient in a challenging, fast-paced environment.
  • Excels at building relationships, networking and influencing others.
  • Strategic collaborator with insight and agility, able to anticipate future challenges, ensuring operational effectiveness.
Skills and Experience:
  • Having the ability to adapt to business needs and quickly understand requirements, design solutions, and deploy applications dedicated to specific tasks is a must.
  • Strong applied Python knowledge required.
  • Professional developer experience required.
  • Goo…
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