Backend Software Engineer Python C# AI

Company: Client Server
Apply for the Backend Software Engineer Python C# AI
Location: London
Job Description:

Overview

As a Backend Software Engineer, you will build and evolve a cloud-native technology platform for a global reinsurance group. You will influence architecture and engineering practices in a small, agile team with a strong greenfield focus. You’ll explore embedding AI into products and processes, using tools like Claude to enhance software development. This role offers cross-functional collaboration, a chance to shape the tech stack and delivery at scale, and the opportunity to work with modern cloud and container technologies. The position blends backend development with AI-driven improvements to impact engineering productivity and product outcomes.

Pay / Benefits

  • salary up to 100k
  • bonus
  • pension
  • life assurance
  • employee share scheme
  • 25 days holiday

Responsibilities

  • Own backend and cloud-native development to support product platforms
  • Explore and implement AI-driven enhancements in processes and products
  • Influence architecture, design patterns, and engineering practices in a greenfield setting
  • Collaborate with cross-functional teams to connect frontend and backend systems (React/Angular)
  • Promote robust, scalable system design and CI/CD automation

Key requirements

  • Backend software engineering experience with Python or C# (or both)
  • Strong CS fundamentals (OOP, multithreading, design patterns) and system design skills
  • Knowledge of cloud-native architectures (Azure/AWS), event-driven systems, microservices
  • Experience with CI/CD, Terraform, Kubernetes, Docker
  • Familiarity with frontend connectivity and ideally React or Angular
  • Interest in applying AI to development and products (Claude or similar tools)
  • Collaborative mindset and communication skills; startup/small team experience preferred
  • collaborative
  • problem solving
  • good communication
  • Python
  • C#
  • OOP

Posted: September 14th, 2026