.NET Architect (City of London)

Company Overview

Our client is a well-established global (re)insurance group with a strong track record of underwriting performance and claims service excellence. Operating across key international markets, they offer a broad portfolio of property and casualty insurance products. In the UK, the business serves a wide range of commercial clients and operates through a Lloyd’s-based platform, with a focus on specialist and complex risks. Known for their commitment to innovation, they are actively investing in the modernisation of their technology stack to support growth and long-term capability.

The Role

We are seeking an experienced .NET Architect to join the technology team of a leading insurance organisation. This is a permanent role with long-term potential, suited to a technically hands-on architect who can take ownership of design and development across multiple business-critical platforms.

You’ll play a key role in delivering modern, scalable solutions using the latest Microsoft technologies, working in close collaboration with internal development teams, business stakeholders, and third-party providers. The role demands a deep understanding of application architecture, excellent technical design skills, and the ability to contribute across the software development lifecycle.

Key Responsibilities

• Architect, design, and develop high-quality modules and applications using ASP.NET and .NET Core
• Lead the technical direction of projects, ensuring scalability, maintainability, and performance
• Collaborate with stakeholders across business and technology to define solution approaches
• Integrate third-party systems and services, ensuring smooth interoperability
• Support deployment activities, including documentation and post-release support
• Contribute to code reviews, technical standards, and Agile development practices
• Troubleshoot and resolve production issues when required

Essential Skills & Experience

• In-depth expertise in ASP.NET (version 3.1 or higher) and .NET Core
• Familiarity with insurance domain applications or platforms (London Market experience strongly preferred)
• Full-stack development experience with a strong command of front-end technologies including React.js, HTML5, CSS3, JavaScript, Ajax
• Substantial hands-on experience with IIS and system integration
• Strong understanding of architectural patterns and best practices in enterprise software design
• Experience working within Agile teams, with a focus on delivery and quality
• Ability to communicate effectively with both technical and non-technical stakeholders

Desirable Skills

• Experience with any Policy Administration System (PAS)
• Knowledge of Azure-based deployment and cloud-native development
• Exposure to AdvantageGo Subscribe (not essential but a bonus)
• Previous experience working in a client-facing or on-site capacity