> Markdown version of [/jobs/ext/2261205-python-developer-sc-cleared-lapsed-and-central-gov](https://www.wearedevelopers.com/jobs/ext/2261205-python-developer-sc-cleared-lapsed-and-central-gov). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Python Developer (SC Cleared/Lapsed and Central Gov) - **Company:** iO Associates - **Location:** London, UK - **Salary:** £104,000.0 - £130,000.0 - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Agile Methodology, Software Debugging, Python (Programming Language), Secure Coding, Software Engineering, Restful APIs, Programming Languages - **Published:** August 26, 2026 - **Apply:** https://www.totaljobs.com/job/developer-c/io-associates-job107902245 ## About the Role Are you an experienced Python Developer with a security clearance? Our Client, a leading organisation operating within the defence and security sector, is looking for a talented professional to join their team on a contract basis. This is an exciting opportunity to work on high-profile projects that have a significant impact, offering a chance to utilise your skills in a fast-paced, innovative environment., * Proven experience developing with Python in a professional setting * Hold an active security clearance at SC level or above * Strong understanding of software development lifecycle and best practices * Ability to interpret technical specifications and translate them into functional code * Excellent problem-solving skills and attention to detail * Experience working within the defence, security, or related sectors is highly desirable Desirable Skills & Experience * Familiarity with secure coding practices and compliance standards * Knowledge of other programming languages or frameworks such as Java or REST APIs * Experience working in agile development environments * Strong communication skills and the ability to work effectively within multidisciplinary teams ## Description * Develop, test, and maintain Python-based applications aligned with project requirements * Collaborate with cross-functional teams to deliver robust solutions * Analyse system specifications and translate them into high-quality code * Troubleshoot, debug, and optimise existing applications for improved performance * Ensure all work complies with security protocols and industry standards * Document development processes and contribute to technical reports ## Related Videos - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) - [Rest API Antipatterns](https://www.wearedevelopers.com/videos/100208-rest-api-antipatterns) - [How to Cause (or Prevent) a Massive Data Breach- Secure Coding and IDOR](https://www.wearedevelopers.com/videos/39-how-to-cause-or-prevent-a-massive-data-breach-secure-coding-and-idor) - [ShapeShift: Reinventing Agile for a B2B SaaS Scale-Up](https://www.wearedevelopers.com/videos/1655-shapeshift-reinventing-agile-for-a-b2b-saas-scale-up) - [Enterprise Python: Software That Lives Long And Prosper](https://www.wearedevelopers.com/videos/946-enterprise-python-software-that-lives-long-and-prosper) - [From Punch Cards to AI-assisted Development](https://www.wearedevelopers.com/videos/611-from-punch-cards-to-ai-assisted-development) ## Related Articles - [The 13 Best Python Libraries for Developers in 2025](https://www.wearedevelopers.com/magazine/371-the-13-best-python-libraries-for-developers-in-2025) - [Why Upskilling And Reskilling is Important For Developers](https://www.wearedevelopers.com/magazine/428-why-upskilling-and-reskilling-is-important-for-developers) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers) - [7 good reasons why you should learn Python in 2021](https://www.wearedevelopers.com/magazine/19-7-good-reasons-why-you-should-learn-python-in-2021) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated)