C# Developer - Front Office Trading Systems - Options Market Making

ABOUT THE COMPANY:

Maven is a market-leading proprietary trading firm allocating internal capital across discretionary, systematic, and market-making strategies. Our collective expertise spans traders, engineers, and technologists, unified by an unwavering dedication to enhance our efficiency as a premier liquidity provider for globally listed derivatives. We leverage groundbreaking execution and pricing technologies to elevate and improve how financial markets operate.

Overview

Join a high-impact, agile team at the heart of our proprietary trading firm, where innovation drives success. Our Interactive Trading team operates across London, Amsterdam, and Chicago, supporting and developing cutting-edge front-office trading systems used by our options market-making team. We take ownership of proprietary systems, from robust back-end services to intuitive web-based front-ends, ensuring seamless and efficient trading operations.

The Role

We’re looking for a talented Front Office C# Developer to design and implement exceptional solutions within a collaborative and dynamic environment. You'll work directly with traders and business stakeholders, tackling complex challenges in fast-paced, high-stakes scenarios. If you thrive on problem-solving, delivering high-quality code, and making an immediate impact on trading performance, this role is perfect for you.

What You’ll Do

• Collaborate with front-office business users to gather and understand requirements.


• Design, develop, and enhance mission-critical systems with a focus on performance, maintainability, testability, and resilience.


• Write clean, high-quality code and comprehensive tests, leveraging automation to streamline processes.


• Analyse, document, and communicate design decisions effectively.


• Partner with stakeholders, Site Reliability Engineers (SREs), and infrastructure teams to ensure robust system delivery and operation.

What We’re Looking For

• Strong analytical and system design skills, with the ability to tackle complex problems.


• Expert-level C# skills, with a solid understanding of testing processes (currently using .NET 8, transitioning to .NET 9).


• Experience with .NET, CI/CD pipelines, and containerization technologies like Docker and Kubernetes.

Nice to Have

• Familiarity with JavaScript, TypeScript, or other front-end technologies, demonstrating the ability to contribute to or collaborate on UI development.


• Experience programming in Python 


• Experience using MongoDB and PostgreSQL 


• Familiarity with event-driven architectures, Domain-Driven Design (DDD), Command Query Responsibility Segregation (CQRS), or Event Sourcing principles.

Why Join Us?

• Competitive compensation


• Annual discretionary bonus 


• 25 days’ annual leave


• Informal dress code 


• Private healthcare


• Monthly company events