Python Developer

3w3 weeks ago

Talan

London, GB · Full-time · £85,000 – £120,000

About this role

As part of its ambition to become a Top 3 contributor in the European ETF market, our client is investing significantly in the evolution of its ETF Market Making platform. This role centres on the design, development, and delivery of a next-generation electronic trading platform supporting global trading activities across Europe, the US, and Emerging Markets. The objective is to build a scalable, high-performance platform while developing long-term expertise.

You will act as a hands-on developer within the Front Office trading environment, driving the build and enhancement of critical ETF trading components. Design and develop core components with a focus on performance, scalability, and low latency. Implement enhancements to AMM and RFQ pricing workflows, improving automation and client responsiveness.

Analyse existing ETF trading workflows like Blotter, booking, and validation chain, translating them into improved system designs. Lead the design and development of the new ETF Blotter within the Edge Board platform. Work closely with traders and quants to capture requirements and rapidly deliver solutions in short development cycles.

Contribute to the architecture and design of distributed systems, ensuring robustness and extensibility. Develop reusable frameworks, libraries, and tools to support the ETF trading ecosystem. Enhance monitoring, observability, and performance tooling to enable scalability for future asset classes or regions.

Requirements

Strong experience in Front Office trading system development, ideally within electronic trading or market making environments
Advanced Python
SQL / data handling
Strong understanding of client-server and distributed architectures
Experience working in Linux/Windows environments
Proven ability to design and build production-grade systems
Exposure to C++ (performance-critical components) (desirable)
Knowledge of ETF products, RFQ workflows, or pricing systems (desirable)

Responsibilities

Design and develop core components of the ETF electronic trading platform, focusing on performance, scalability, and low latency
Contribute to the end-to-end build and deployment of features across EU, US, and Global/Emerging Markets
Implement enhancements to AMM and RFQ pricing workflows, improving automation and client responsiveness
Participate in the architecture and design of distributed systems, ensuring robustness and extensibility
Analyse existing ETF trading workflows (Blotter, booking, validation chain) and translate into improved system designs
Lead the design and development of the new ETF Blotter within the Edge Board platform
Build clean, efficient, and maintainable data flows between trading systems (ETF Portal, pricing engines, booking systems)
Work closely with traders and quants to capture requirements and rapidly deliver solutions