Senior Quant Developer

Join Barclays as a Senior Quant Developer to build and modernize our quant finance infrastructure, where you’ll be designing robust Python-driven frameworks and AI‑augmented workflows that turn complex model testing into scalable, production-grade systems integrated into decision making and trusted across the business

To be successful as a Senior Quant Developer, you should have:

• Very strong Python 3+ pandas, numpy and matplotlib skills. Namely developing the architecture, abstraction and OOP, databases, containers, scientific computing, interfaces, test-driven development and code documentation.
• Experience applying AI/ML tools in production workflows, including use of LLM-based assistants, prompt engineering, agents, and automation of technical or business processes.
• Familiarity with Git/CI/ Docker/MongoDB development and deployment patterns.
• Desire to work in quantitative finance and utilize programming skills to develop frameworks, automate processes, drive testing and promote high quality production models/code.

Some other highly valued skills may include:​

• Experience developing internal tools or user-facing applications using React and Express, with strong software engineering fundamentals and ability to integrate with Python-based analytics/services.
• Basic knowledge of mathematical finance (e.g. Black Scholes, Hull-White, etc). Basic understanding of numerical computation (optimization, Monte-Carlo, integration, etc).
• PhD or master’s in computer science, Applied Mathematics, physics (or similar mathematical, scientific, or software-related field)

You may be assessed on the key critical skills relevant for success in role, such as risk and controls, change and transformation, business acumen strategic thinking and digital and technology, as well as job-specific technical skills.

This role will be based in our Prague office.

Purpose of the role

To design, develop, and evolve trading, risk management and other platforms that facilitate trading and regulatory objectives within the investment banking domain. 

Accountabilities

• Design, development, and maintenance of high-performance trading platforms, risk systems, and applications catering to the needs of traders and market participants.
• 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.

Vice President Expectations

• To contribute or set strategy, drive requirements and make recommendations for change. Plan resources, budgets, and policies; manage and maintain policies/ processes; deliver continuous improvements and escalate breaches of policies/procedures..
• If managing a team, they define jobs and responsibilities, planning for the department’s future needs and operations, counselling employees on performance and contributing to employee pay decisions/changes. They may also lead a number of specialists to influence the operations of a department, in alignment with strategic as well as tactical priorities, while balancing short and long term goals and ensuring that budgets and schedules meet corporate requirements..
• If the position has leadership responsibilities, People 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..
• OR for an individual contributor, they will be a subject matter expert within own discipline and will guide technical direction. They will lead collaborative, multi-year assignments and guide team members through structured assignments, identify the need for the inclusion of other areas of specialisation to complete assignments. They will train, guide and coach less experienced specialists and provide information affecting long term profits, organisational risks and strategic decisions..
• Advise key stakeholders, including functional leadership teams and senior management on functional and cross functional areas of impact and alignment.
• Manage and mitigate risks through assessment, in support of the control and governance agenda.
• Demonstrate leadership and accountability for managing risk and strengthening controls in relation to the work your team does.
• Demonstrate comprehensive understanding of the organisation functions to contribute to achieving the goals of the business.
• Collaborate with other areas of work, for business aligned support areas to keep up to speed with business activity and the business strategies.
• Create solutions based on sophisticated analytical thought comparing and selecting complex alternatives. In-depth analysis with interpretative thinking will be required to define problems and develop innovative solutions.
• Adopt and include the outcomes of extensive research in problem solving processes.
• Seek out, build and maintain trusting relationships and partnerships with internal and external stakeholders in order to accomplish key business objectives, using influencing and negotiating skills to achieve outcomes.

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.