Python Software Engineer

CBSbutler Ltd.; Leeds; Hybrid; GBP 38,302 - 50,257; Part time

Job summary

CBSbutler Ltd. is seeking a Senior Python Software Engineer to contribute to a secure, cloud‑native healthcare platform.

The role involves developing Python applications for distributed systems, implementing CI/CD pipelines, and ensuring architectural governance within an AWS environment. The position supports a highly available infrastructure with a shift‑left security mindset and observability, aligning with modern cloud‑native engineering standards.

Qualifications

• Senior-level Python software development experience.
• Experience building secure software for complex systems.
• Hands-on with AWS or other public clouds and IaC tooling.

Responsibilities

• Developing high-quality Python applications for distributed systems.
• Maintaining and improving code quality across the platform.
• Building and monitoring CI/CD pipelines and quality gates.
• Ensuring deployments meet security and governance standards.
• Provisioning cloud-native infrastructure, primarily AWS.
• Collaborating with product teams to build observable, reliable services.
• Driving incident response and continuous platform improvements.
• Embedding SSDLC principles across development processes.

Skills

Python

Cloud (AWS)

CI/CD

Observability

Platform engineering

SSDLC

Security

Tools

Terraform

GitHub Actions

Job description

Python Software Engineer

+12 months +

+Remote - 1 day a month on site in Leeds

+SC cleared - current active clearance is essential

+Inside IR35

+£400 a day

We're looking for an experienced Senior Python Software Engineer with a strong background in cloud platforms and platform engineering to join a nationally critical programme supporting the UK's healthcare infrastructure.

You’ll be working on a highly available, secure healthcare integration and messaging platform that forms part of the UK's Critical National Infrastructure (CNI). The platform enables the secure exchange of patient and workforce data between healthcare organisations and digital services, helping ensure vital healthcare systems remain resilient, secure and available.

This is an opportunity to work on software that has a genuine impact on millions of people while helping shape engineering standards across a modern cloud‑native platform.

What You’ll Be Doing

As a Senior Software Engineer, you’ll combine application development with platform engineering practices to build, improve and support a secure, cloud‑native environment.

Key responsibilities include:

• Developing high-quality, secure Python applications for complex distributed systems
• Maintaining and improving code quality across the platform
• Building, managing and monitoring CI/CD pipelines and code quality gates
• Ensuring deployments meet technical, security and governance standards
• Provisioning and supporting cloud‑native infrastructure, primarily within AWS
• Collabing with product teams to help build observable, reliable cloud‑native services
• Supporting incident investigation and driving continuous platform improvements
• Embedding Secure Software Development Lifecycle (SSDLC) principles throughout the development process
• Championing a "shift‑left" approach to security through static and dynamic analysis, automation and best practice

Essential Skills & Experience

We’re looking for engineers with experience in:

• Senior‑level Python software development
• Developing secure software for complex systems
• AWS or other public cloud platforms
• Infrastructure as Code (Terraform preferred)
• CI/CD tooling such as GitHub Actions (or similar)
• Observability and monitoring tools

Desirable Experience

• Promoting engineering and platform best practices across teams
• Building reusable Infrastructure as Code modules and CI/CD pipelines
• Enabling developer productivity through platform engineering
• Driving DevOps culture and automation
• Creating shared tooling and self‑service capabilities for engineering teams