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Date live: Jan. 16, 2026

Business Area: Cross Markets

Area of Expertise: Markets

Reference Code: JR-0000084161

Contract: Permanent

Essential skills:

  • PhD or master’s degree in financial mathematics, Mathematics or Physics.
  • Prior experience developing and/or implementing Equity Derivatives models and hybrids (ideally). Strong knowledge of exotics models for other asset classes can also be considered.
  • Provide expert advice to senior stakeholders on modelling topics, anticipating issues and weighing advantages and disadvantages of choices leading to models’ assumptions and limitations.
  • Solid modelling skills (Python essential and optionally C++).

Desirable skills:

  • Exceptional precision and attention to detail
  • Excellent oral and written communication skills
  • Demonstrate best in class professional integrity

Join us in the role of Equity Derivatives and Hybrids Quant Modeler (Model Integrity and Control), where you will be responsible for presenting 1st line challenge to current models and assess impacts of models assumptions and limitations. In this role you will focus on model assessment, increasing testing coverage, automation, and steer governance for Equity Derivatives models, with an emphasis on collaboration with quant developers, validators, and key stakeholders across the model lifecycle.

Purpose of the role

Provide an effective challenge to models by assessing the impact of their assumptions and limitations, focusing on the accuracy and robustness of the models. Explore alternative approaches to mitigate these limitations and evolve trading, risk management platforms.

Accountabilities

  • Review models and documentation to provide guidance on their design. Implement, run and analyse performance tests using production C++ libraries and Python, while writing high-quality documentation and automating tasks.
  • Collaboration with traders, strategists, and stakeholders to gather requirements and translate them into scalable and efficient technological solutions.
  • Implementation of new features, enhancements, and functionalities on trading platforms to improve performance, reliability, and user experience.
  • Stay updated on technological advancements, industry trends, and best practices to drive innovation and continuous improvement in trading platforms.
  • Collaboration with cross-functional teams including business aligned SM&D teams, strats, compliance, and IT to address system issues and implement solutions.

Director Expectations

  • To manage a business function, providing significant input to function wide strategic initiatives. Contribute to and influence policy and procedures for the function and plan, manage and consult on multiple complex and critical strategic projects, which may be business wide..
  • They manage the direction of a large team or sub-function, leading other people managers and embedding a performance culture aligned to the values of the business. Or for an individual contributor, they lead organisation wide projects and act as deep technical expert and thought leader, identifying new ways of working and collaborating cross functionally. They will train, guide and coach less experienced specialists and provide information affecting long term profits, organisational risks and strategic decisions..
  • Provide expert advice to senior functional management and committees to influence decisions made outside of own function, offering significant input to function wide strategic initiatives.
  • Manage, coordinate and enable resourcing, budgeting and policy creation for a significant sub-function.
  • Escalates breaches of policies / procedure appropriately.
  • Foster and guide compliance, ensure regulations are observed that relevant processes in place to facilitate adherence.
  • Focus on the external environment, regulators, or advocacy groups to both monitor and influence on behalf of Barclays, when appropriate.
  • Demonstrate extensive knowledge of how the function integrates with the business division / Group to achieve the overall business objectives.
  • Maintain broad and comprehensive knowledge of industry theories and practices within own discipline alongside up-to-date relevant sector / functional knowledge, and insight into external market developments / initiatives.
  • Use interpretative thinking and advanced analytical skills to solve problems and design solutions in often complex/ sensitive situations.
  • Exercise management authority to make significant decisions and certain strategic decisions or recommendations within own area.
  • Negotiate with and influence stakeholders at a senior level both internally and externally.
  • Act as principal contact point for key clients and counterparts in other functions/ businesses divisions.
  • Mandated as a spokesperson for the function and business division.

All Senior Leaders are expected to demonstrate a clear set of leadership behaviours to create an environment for colleagues to thrive and deliver to a consistently excellent standard. The four LEAD behaviours are: L – Listen and be authentic, E – Energise and inspire, A – Align across the enterprise, D – Develop others.

All colleagues will be expected to demonstrate the Barclays Values of Respect, Integrity, Service, Excellence and Stewardship – our moral compass, helping us do what we believe is right. They will also be expected to demonstrate the Barclays Mindset – to Empower, Challenge and Drive – the operating manual for how we behave.

More about working at Barclays

The Barclays Way

This is the spirit of Barclays. It’s why we exist, what we believe and how we behave. But most importantly, it’s how we make decisions, take action and get things done.

Learn more

Purpose

Working together for a better financial future.

Values

We believe great talent RISES. It acts with Respect, Integrity, Service, Excellence and Stewardship.

Mindset

We discover our full potential through our desire to Empower, Challenge and Drive each other.