Senior Backend Engineer (Python AWS)£50,000 per annum ? Fully Remote - UK Based Permanent, Full-TimeA well-established UK insurance organisation is undertaking a major backend transformation programme, rebuilding a legacy PHP platform into a modern, scalable Python-based architecture hosted in AWS.This is a senior-level engineering role focused on designing and delivering the next generation backend platform that will underpin future digital products.The role is heavily Python-focused. PHP knowledge is beneficial only to support understanding of the legacy system during migration - it is not the primary technology moving forward.The OpportunityYou'll play a key role in the architecture and delivery of a modern cloud-native backend platform, helping transition core functionality from a legacy PHP estate into a scalable, secure Python environment.This is a hands-on engineering position with architectural influence - ideal for someone who enjoys shaping technical direction while remaining close to code.Key ResponsibilitiesPlatform Modernisation
Architect and develop scalable backend services using Python
Design and implement secure, well-structured RESTful APIs
Lead the re-engineering of legacy functionality into modern, cloud-native services
Contribute to long-term backend architecture decisions
Cloud & Infrastructure
Design and build solutions within AWS environments
Apply cloud best practices for scalability, resilience and security
Contribute to CI/CD pipelines and deployment workflows
Embed monitoring, logging and observability within cloud-hosted systems
Legacy Transition
Support phased migration away from the existing PHP platform
Provide technical oversight during system replacement and integration
Reduce technical debt while maintaining service continuity
Engineering Leadership
Participate in technical reviews and architectural discussions
Promote coding standards and clean architecture principles
Mentor junior developers where appropriate
Contribute to Agile ceremonies and cross-functional collaboration
Essential Experience
Strong commercial experience developing backend systems in Python
Experience designing and implementing RESTful APIs
Proven experience building and deploying applications within AWS (e.g. Lambda, ECS, API Gateway, CloudWatch, DynamoDB, Cognito or similar services)
Experience working in cloud-native or distributed architectures
Strong understanding of security, authentication and secure API design
Experience with CI/CD pipelines and modern DevOps practices
Familiarity with Git-based version control workflows
Desirable
Working knowledge of PHP (legacy context only)
Experience modernising or replacing legacy systems
Event-driven or serverless architecture exposure
Background within financial services or regulated environments
Why Apply?
Genuine greenfield-style rebuild within an established organisation
Senior-level influence on platform architecture
Cloud-first engineering environment
Fully remote UK role
Long-term technology investment roadmap
Please note: the successful candidate will be required to complete standard background checks.
