Lead Python Developer - £90,000 - DV Cleared

JR United Kingdom; Lincoln; On-site; GBP 60,000 - 90,000; Full time

Job summary

A leading company in the UK Defence and National Security sector is seeking a Lead Python Developer. This role involves leading the development of secure Python systems, guiding teams, and integrating advanced solutions in critical environments. Candidates must have an active DV Clearance and experience in regulated industries.

Qualifications

• Experience leading software development in secure environments.
• Familiarity with defence or regulated industries required.
• Active DV Clearance is a must.

Responsibilities

• Lead design and development of high-security Python applications.
• Guide cross-functional teams to deliver scalable solutions.
• Architect applications to meet defence-grade standards.

Skills

Python

CI/CD

Agile/Scrum

Docker

Kubernetes

Machine Learning

Real-time Data Pipelines

Job description

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Client:

iO Associates - UK/EU

Location:

Lincoln, United Kingdom

Job Category:

Other

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EU work permit required:

Yes

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Job Views:

3

Posted:

07.06.2025

Expiry Date:

22.07.2025

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Job Description:

Clearance Required: DV

We're looking for an experienced Lead Python Developer to join a high-impact programme within the UK Defence and National Security sector. This is a unique opportunity to play a key role in delivering secure, mission-critical software systems that directly support national safety and strategic defence operations.

As a technical leader, you'll drive the design and development of advanced Python-based systems—often in highly secure environments—guiding cross-functional teams, ensuring engineering excellence, and overseeing the full software lifecycle, from concept and prototyping to secure deployment and ongoing support.

Key Responsibilities:

• Leading the design and development of Python-based software systems in a high-security setting
• Working closely with data scientists, analysts, and engineering teams to deliver scalable, reliable solutions
• Architecting secure applications and services in line with defence-grade standards
• Mentoring developers and enforcing best practices across code, testing, and deployment
• Integrating machine learning models and real-time data pipelines where applicable
• Collaborating with stakeholders to gather requirements and showcase technical progress
• Experience in secure or regulated industries (Defence, Government, Aerospace, etc.)
• Solid grasp of CI/CD, containerisation (Docker/Kubernetes), and cloud or on-premise deployments
• Ability to lead technical discussions, reviews, and deliverables across cross-functional teams
• Familiarity with Agile/Scrum delivery
• Active DV Clearance

If you are interested in the above position, please contact James Chapman at 07903 438136 or email at [emailprotected]