Talan

Python developer in ETF market making

In short

This role builds a next-generation electronic trading platform for ETF market making, covering AMM and client RFQ pricing across Europe, US, and Emerging Markets. The employer is a financial services client investing heavily in its ETF trading platform, working in a hybrid setup in London. It demands advanced Python, SQL, strong experience in Front Office trading systems and distributed architectures, with close collaboration with traders and quants.

Description
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, with a strong focus on advancing Automated Market Making (AMM) and client RFQ pricing capabilities. This role is centred on the design, development, and delivery of a next-generation electronic trading platform, supporting global trading activities across Europe, the US, and Emerging Markets.
Responsibilities
•Design and develop core components of the ETF electronic trading platform, with a focus 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 them 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)
•Contribute to the modernisation of trading interfaces and tools used by the desk
•Work closely with traders and quants to capture requirements and rapidly deliver solutions
•Contribute to short development cycles, enabling fast iteration and continuous delivery of trading features
•Ensure high-quality code standards, testing, and deployment practices
•Drive automation and optimisation across the development lifecycle
•Develop reusable frameworks, libraries, and tools to support the ETF trading ecosystem
•Contribute to the scalability and industrialisation of the platform for future asset classes or regions
•Enhance monitoring, observability, and performance tooling from a development perspective (not pure support)
Requirements
•Strong experience in Front Office trading system development, ideally within electronic trading or market making environments
•Python (advanced)
•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, not just maintain them
•Degree from a top university in Computer Science, Engineering, or related field
•Strong analytical and problem-solving skills, with the ability to operate in complex, fast-paced trading environments
•Self-starter with a strong engineering mindset and ownership culture
Nice to have
•Exposure to C++ (performance-critical components)
•Knowledge of ETF products, RFQ workflows, or pricing systems
Conditions
No conditions specified in the posting.

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