Senior Software Engineer - Python / AWS / Cloud-Native (SC or DV Cleared)

Senior Software Engineer - Python / AWS / Cloud-Native Engineering SC or DV Cleared Government Programme AWS Python Terraform Microservices

Location: UK (Hybrid / Remote)
Security Clearance: SC or DV required
Engagement: Contract (Inside IR35)
Sector: Public Sector / Defence / National Infrastructure

We are supporting a major secure government programme building modern cloud-native and AI-enabled digital capability within a highly technical AWS engineering environment.

The team are looking for a strong Senior Python Software Engineer with experience delivering scalable backend services, microservices platforms and event-driven cloud solutions within AWS environments.

This role sits inside a highly engineering-led team working across Python development, AWS infrastructure, DevOps automation and cloud-native platform delivery. The environment is heavily focused around scalable distributed systems, modern CI/CD practices and cloud-native engineering capability.

This is not a traditional enterprise development environment - they need engineers comfortable operating across backend engineering, cloud integration and modern AWS-hosted microservices architectures.

Key responsibilities

• Designing and developing Python backend services and APIs
• Building scalable cloud-native applications within AWS environments
• Developing event-driven and microservices-based systems
• Supporting CI/CD and automated deployment pipelines
• Working closely with DevOps, platform and cloud engineering teams
• Supporting secure and resilient distributed systems
• Contributing to technical design, engineering standards and delivery quality
• Operating within Agile engineering teams delivering modern cloud-native services

Core skills required

• Strong Python engineering experience
• AWS cloud-native engineering
• REST APIs / backend services
• Microservices and event-driven architectures
• Terraform / Infrastructure as Code
• CI/CD pipelines
• Docker / containerisation
• Cloud integration experience
• GitHub Actions / GitLab CI / Jenkins
• Experience working within Agile engineering teams

Highly desirable

• FastAPI / Flask
• AWS Lambda / ECS / API Gateway
• SNS / SQS / EventBridge
• Kubernetes / EKS
• DevSecOps experience
• AI / LLM integration exposure
• Secure government or regulated environment experience
• SC, enhanced SC or DV clearance

Environment & culture

The engineering environment is modern, fast-moving and highly collaborative. The team work closely across software engineering, DevOps, platform engineering and automation functions, with strong focus around delivery quality, automation and cloud-native best practice.

Candidates with experience across government digital services, AWS-hosted platforms and modern DevOps engineering environments will align particularly well.