London-based hedge fund, is seeking a highly experienced .NET Architect to lead the technical design and implementation of its next-generation Treasury platform. This role will play a key part in shaping the system architecture, guiding development teams, and ensuring the robustness, scalability, and performance of mission-critical trading and treasury components.

The ideal candidate will bring deep experience architecting .NET-based solutions in capital markets environments, with strong knowledge of trade flows, order management, and integration with Front Office and risk platforms.

INSIDE IR35
HYBRID WORKING 3 DAYS IN LONDON
MUST HAVE CAPITAL MARKETS EXPERIENCE

Key Responsibilities:

• Define and lead the end-to-end architecture for the Treasury platform using modern .NET technologies and distributed systems design.

• Collaborate closely with business stakeholders, product owners, and senior developers to understand requirements and translate them into scalable technical solutions.

• Drive best practices across software engineering, including design patterns, microservices, security, performance, and cloud deployment.

• Lead the design and implementation of integration points with upstream/downstream systems including OMS, EMS, pricing engines, and compliance modules.

• Conduct architecture and code reviews, and ensure alignment with enterprise and industry standards.

• Mentor development teams and support delivery using Agile methodologies.

Essential Skills & Experience:

• Proven experience in .NET architecture roles within capital markets, hedge funds, or investment banking.

• Expert in C#/.NET Framework and .NET Core, microservices, multithreaded programming, and Real Time distributed systems.

• Strong understanding of treasury operations, Fixed Income, FX, and derivatives workflows.

• Solid experience with SQL Server, messaging (eg, RabbitMQ, Service Bus), and APIs (REST/FIX).

• Experience with cloud-native architecture, preferably on Azure (Functions, Logic Apps, Cosmos DB, Blob Storage, Service Bus).

• Familiarity with order management systems (eg, ThinkFolio, Aladdin, Portware, Fidessa).

• Hands-on experience implementing regulatory and compliance frameworks (eg, MiFID II, UMR, BCBS).

• Excellent communication skills with the ability to work with business users and technical teams.

• Exposure to DevOps practices and tools (CI/CD pipelines, infrastructure as code).

• Previous involvement in modernising Legacy trading platforms or building greenfield systems in a hedge fund environment.