Security Cleared Python Developer

Devonshire Hayes are looking for a skilled SC Python Developer who is Security Cleared to join a customer of ours on a contract basis until the end of March 2026 (extension highly likely) paying £750 per day (inside IR35).

You will be responsible for designing, developing, and maintaining high-quality Python-based applications and services, working closely with cross-functional teams to deliver robust and scalable solutions.

This role offers a flexible hybrid working arrangement, with one day per week onsite at one of our UK offices (London, Cardiff, or Glasgow) and the remainder working from home.

Key Responsibilities

* Design, develop, test, and maintain Python applications and services

* Write clean, efficient, and well-documented code following best practices

* Collaborate with product owners, architects, and other developers to deliver technical solutions

* Participate in code reviews and contribute to continuous improvement of development standards

* Debug, troubleshoot, and resolve technical issues

* Contribute to system design, performance optimisation, and scalability

* Work within Agile/Scrum delivery teams (if applicable)

Required Skills & Experience

* Strong commercial experience with Python

* Experience building and maintaining production-grade applications

* Solid understanding of software development best practices

* Experience with RESTful APIs and backend services

* Familiarity with version control systems (e.g. Git)

* Strong problem-solving and communication skills

* Ability to work independently in a remote-first environment

Desirable Skills

* Experience with frameworks such as Django is essential for this position.

* Cloud experience (AWS, Azure, or GCP)

* Experience with containerisation (Docker, Kubernetes)

* Knowledge of CI/CD pipelines

* Database experience (SQL and/or No

SQL)

* Prior experience working in Agile environments