Lead Software Engineer

Lead .NET Software Engineer – Cloud SaaS / AI Engineering - 4 days WFH - £95,000

We’re partnering with a high-growth SaaS technology business looking for a Lead .NET Software Engineer to help shape the future of a cloud-native platform used by some of the UK’s largest enterprise organisations.

This is a hands-on technical leadership role focused on architecture, modern engineering practices, cloud-native development, and AI-augmented software delivery.

You’ll play a key role in scaling a next-generation SaaS platform built on .NET 9 and Azure, helping drive the evolution from a successful legacy product into a modern, distributed cloud architecture.

What You’ll Be Doing:

  • Own and evolve technical architecture across a large-scale SaaS platform
  • Lead complex engineering initiatives, proof of concepts, and cross-team technical delivery
  • Drive modern engineering standards across code quality, testing, observability, and operational readiness
  • Shape architectural decisions across modular monolith and distributed system patterns
  • Champion Domain-Driven Design and event-driven architecture approaches
  • Support the adoption of AI-assisted development tooling and engineering workflows
  • Mentor engineers through design reviews, technical coaching, and collaborative problem solving
  • Partner closely with Product, Platform, QA, and Engineering leadership teams

Tech Environment:

  • C# / .NET 9
  • Azure PaaS
  • TypeScript / SPA frameworks
  • Entity Framework Core
  • Azure Service Bus / Event Grid
  • CI/CD & Infrastructure as Code
  • Docker, Terraform, Azure DevOps
  • Application Insights & modern observability tooling

What We’re Looking For:

  • Strong experience leading engineering initiatives within complex SaaS or enterprise environments
  • Deep expertise in .NET and cloud-native architecture
  • Experience designing scalable distributed systems and modern software platforms
  • Strong understanding of Domain-Driven Design, event-driven systems, and modern architectural patterns
  • Experience with Azure cloud technologies and DevOps practices
  • Exposure to AI-assisted development tooling such as GitHub Copilot, Cursor, Claude Code or similar
  • Strong stakeholder communication and mentoring capability

What’s On Offer:

  • Hybrid working model, 4 days WFH a week
  • Opportunity to influence architecture and engineering direction at scale
  • Modern cloud-native engineering environment
  • AI-first engineering initiatives
  • High-impact role within a growing SaaS business
  • Collaborative, engineering-led culture with strong technical investment

If you’re passionate about modern .NET engineering, scalable cloud platforms, and building high-quality software in a collaborative environment, we’d love to hear from you.

Lead .NET Software Engineer – Cloud SaaS / AI Engineering - 4 days WFH - £95,000

Job Details

Company
Oliver Bernard
Location
City of London, London, United Kingdom
Hybrid / Remote Options
Posted