> Markdown version of [/jobs/ext/3721223-quantitative-developer](https://www.wearedevelopers.com/jobs/ext/3721223-quantitative-developer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Quantitative Developer - **Company:** Qube Research & Technologies - **Location:** UK - **Experience:** Experienced - **Contract:** Permanent contract - **Skills:** JavaScript (Programming Language), Application Programming Interfaces (APIs), Algorithmic Trading, Amazon Web Services, Applications Architecture, C Sharp (Programming Language), C++ (Programming Language), Data Structures, Memory Management, Human-Computer Interaction, Enterprise Messaging Systems, Windows Presentation Foundation, SignalR, Software Engineering, Data Streaming, TypeScript, WebSocket, Windows Forms, Real Time Systems, ReactJS, Concurrency, Low Latency, Real Time Data - **Published:** October 14, 2026 - **Apply:** https://startup.jobs/quantitative-developer-front-end-react-c-qube-research-technologies-10437768 ## About the Role * Minimum three years of professional software engineering experience, with strong C# and .NET development skills * Experience designing, developing and supporting real time applications and data intensive production systems * Strong understanding of software engineering fundamentals, including data structures, memory allocation, garbage collection and concurrency * Experience investigating performance bottlenecks and implementing improvements to application reliability and efficiency * Ability to work autonomously, make informed architectural decisions and take ownership of complex technical problems * Experience with React, TypeScript, JavaScript, WPF, WinForms or similar user interface technologies is beneficial * Strong communication and collaboration skills, with the ability to work effectively with technical and business stakeholders * Familiarity with AWS, C++, real time messaging technologies, WebSockets or SignalR is advantageous * Exposure to financial markets, trading systems or risk management applications is beneficial ## Description You will work on internal applications and infrastructure that deliver data from core services and APIs to a multitude of users across Trading, Risk, Compliance, Regulatory Reporting, Operations and Support. The role focuses primarily on C# development, building scalable systems that provide accurate and timely data for trading and operational workflows, alongside contributing to user interfaces developed using React and TypeScript., * Design, develop and maintain C# applications and infrastructure supporting real time data delivery across the business * Build scalable services and data flows for trade entry, positions, order monitoring, execution, risk and PnL workflows * Optimise application architecture, memory management and resource utilisation to improve scalability and reliability * Investigate and resolve production issues involving data quality, latency, throughput and system performance * Take ownership of technical decisions and continuously improve existing systems in response to evolving business needs * Develop and enhance user interfaces using React and TypeScript in collaboration with other engineers * Collaborate with Trading, Risk and operational stakeholders to understand requirements and deliver practical technical solutions