.NET Architect - London - Treasury Platform - Capital Markets/Hedge Fund

ZipRecruiter; London; Hybrid; GBP 80,000 - 120,000; Full time

Job summary

A London-based hedge fund is seeking a highly experienced .NET Architect to lead the technical design and implementation of its Treasury platform. The ideal candidate will have deep experience in architecting .NET solutions within capital markets and will play a key role in shaping system architecture and guiding development teams. Key responsibilities include defining end-to-end architecture, collaborating with stakeholders, and ensuring best practices across software engineering.

Qualifications

• Experience in .NET architecture roles within capital markets or hedge funds.
• Expert in C#/.NET and microservices.
• Strong understanding of treasury operations and workflows.

Responsibilities

• Lead the architecture for the Treasury platform using modern .NET technologies.
• Collaborate with stakeholders to translate requirements into scalable solutions.
• Drive best practices in software engineering and conduct architecture reviews.

Skills

C#/.NET Framework

Microservices

Multithreaded Programming

Real Time Distributed Systems

Cloud Architecture

SQL Server

APIs

DevOps

Tools

RabbitMQ

Azure

Job description

Job Description

London-based hedge fund, is seeking a highly experienced .NET Architect to lead the technical design and implementation of its next- 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- 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.