About this role
Salary: £80,000 - 110,000 per year
Requirements: Strong commercial experience with .NET, C# or Python development.Previous experience as a Tech Lead, Lead Developer, Senior Software Engineer or Software Architect.Strong software architecture and solution design experience, including modernisation of legacy applications.Experience designing scalable, maintainable and highly available systems.Knowledge of API design, system integration and enterprise application architecture.Experience delivering software through Agile environments.Exposure to AI technologies, LLMs or AI-enabled products would be highly desirable.Experience using AI developer tools such as GitHub Copilot, Claude Code, Codex or similar would be an advantage.Excellent communication skills with the ability to work across technical and business stakeholders. Responsibilities: Lead the technical design and evolution of a large-scale business-critical platform.Improve the existing architecture and define a pragmatic roadmap towards a modern, scalable solution.Design and build new features using .NET, C# and Python.Introduce AI-powered capabilities into the product to improve functionality and user experience.Drive the adoption of AI-assisted software development tools and engineering best practices.Design integrations with enterprise platforms, APIs and wider business systems.Work closely with Product, Architecture and Engineering teams to deliver incremental improvements.Mentor developers and provide technical leadership across the engineering function.Champion software quality, automation, testing and modern engineering standards. Technologies: AIAPIArchitectC#Claude CodeCopilotGitHubPythonASP.NETEmbedded More:
We are working with a well-known global organisation on a major transformation of one of our core business-critical platforms. This is a permanent or contract opportunity based in London City with a hybrid working pattern of 1-2 days per week in the office. We are modernising a legacy product incrementally, with a focus on architecture, enterprise integration and AI capability, and we offer a salary of £80,000 - £110,000 plus benefits or a contract rate of £600 - £700 per day. This role is ideal for an experienced Tech Lead, Senior Software Engineer or Software Architect who wants to shape technical direction while staying close to the code.
last updated 29 week of 2026