Python Developer

Company: Cloudspirit
Apply for the Python Developer
Location: London
Job Description:

Role OverviewAs 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. The objective is to build a scalable, high-performance platform, while developing long-term expertise to enable future trading and technology initiatives.

Key ResponsibilitiesYou will act as a hands-on developer within the Front Office trading environment, driving the build and enhancement of critical ETF trading components:

Platform Development & EngineeringDesign 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 MarketsImplement enhancements to AMM and RFQ pricing workflows, improving automation and client responsivenessParticipate in the architecture and design of distributed systems, ensuring robustness and extensibilityTrading Workflow & System DesignAnalyse 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 platformBuild 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

Agile Development & DeliveryWork closely with traders and quants to capture requirements and rapidly deliver solutionsContribute to short development cycles, enabling fast iteration and continuous delivery of trading featuresEnsure high-quality code standards, testing, and deployment practicesDrive automation and optimisation across the development lifecycle

Platform Capability BuildDevelop reusable frameworks, libraries, and tools to support the ETF trading ecosystemContribute to the scalability and industrialisation of the platform for future asset classes or regionsEnhance monitoring, observability, and performance tooling from a development perspective (not pure support)

Qualifications & Experience

Mandatory SkillsStrong experience in Front Office trading system development, ideally within electronic trading or market making environmentsSolid software engineering background with:Python (advanced)SQL / data handlingStrong understanding of client-server and distributed architecturesExperience working in Linux/Windows environmentsProven ability to design and build production-grade systems, not just maintain them

DesirableExposure to C++ (performance-critical components)Knowledge of ETF products, RFQ workflows, or pricing systems

Education & Personal AttributesDegree from a top university in Computer Science, Engineering, or related fieldStrong analytical and problem-solving skills, with the ability to operate in complex, fast-paced trading environmentsSelf-starter with a strong engineering mindset and ownership culture

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Posted: May 29th, 2026