Quantitative Investment Strategies(QIS) Platform Developer

Join Barclays’ QA Equity & Hybrid Products team as a QIS Platform Developer to support the next-generation Quantitative Investment Strategies (QIS) platform. Partnering with Trading, Structuring, Strats, and Technology, you will design and deliver high-performance, scalable tools, libraries, and frameworks that power innovative investment products, within a collaborative and intellectually demanding environment.

This role is based in London.

• Create and enhance platform tooling, libraries, and frameworks in Python and other languages as appropriate, delivering scalability, performance, and reliability.
• Contribute to platform architecture and integration with infrastructure, services, and end-user workflows.
• Work closely with front-office teams to deliver tools that support product development, trading, and risk management.
• Maintain code, documentation, and work tracking to a high quality.
• Support users across Front Office, Quant, and Technology groups.

• Front Office / Trading Desks – Delivering tools and solutions to develop and deliver products, manage risk and run the business.
• Quant Teams – Sharing functionality and expertise across QA Equity & Hybrid Products.
• Technology – Ensuring agile, efficient platform delivery and operational stability.

• Familiarity with a wide range of programming languages and paradigms, including functional.
• Strong Python skills with deep knowledge of the language and core libraries.
• Experience developing production-quality software (source control, CI/CD, automated testing).
• Strong grasp of software engineering principles and computer science fundamentals.
• Track record in end-to-end project delivery.
• Analytical mindset and excellent problem-solving skills.
• Strong communication and a collaborative approach.

• Background in QIS or front-office quant environments.
• Experience in platform development and developer experience.

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

• 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.

• 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, define jobs and responsibilities, plan for the department’s future needs and operations, counsel employees on performance and contribute to pay decisions/changes. May lead specialists to influence operations, balancing short and long-term goals with budgets and schedules.
• Demonstrate leadership behaviours to create an environment for colleagues to thrive and deliver to a consistently excellent standard. The four LEAD behaviours are: Listen and be authentic; Energise and inspire; Align across the enterprise; Develop others.
• For individual contributors, act as a subject matter expert within own discipline, guide technical direction, lead multi-year assignments, and coach less experienced specialists.
• 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 to contribute to achieving business goals.
• Collaborate with other areas of work to keep up with business activity and strategies.
• Create solutions based on sophisticated analytical thought, comparing and selecting complex alternatives. Conduct in-depth analysis to define problems and develop innovative solutions.
• Adopt and include outcomes of extensive research in problem-solving processes.
• Seek out, build and maintain trusting relationships and partnerships with internal and external stakeholders to accomplish key objectives, using influencing and negotiating skills.

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.