Lead Python Developer - Outside £550p/d - DV Cleared

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

Job summary

A leading company in the UK Defence and National Security sector is seeking an experienced Lead Python Developer. The role involves leading the development of mission-critical software systems, guiding teams, and ensuring high standards in a secure environment, contributing directly to national safety.

Qualifications

• Experience in secure or regulated industries (Defence, Government, Aerospace).
• Active DV Clearance preferred.
• Ability to lead technical discussions and mentoring.

Responsibilities

• Leading the design and development of Python-based software systems in a high-security setting.
• Integrating machine learning models and real-time data pipelines.
• Collaborating with stakeholders to gather requirements and showcase technical progress.

Skills

Python

CI/CD

Containerisation

Agile/Scrum

Machine Learning

Tools

Docker

Kubernetes

Job description

Social network you want to login/join with:

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Client:

iO Associates - UK/EU

Location:

Job Category:

Other

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EU work permit required:

Yes

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Job Views:

2

Posted:

06.06.2025

Expiry Date:

21.07.2025

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Job Description:

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. You'll guide cross-functional teams, ensure engineering excellence, and oversee the full software lifecycle, from concept and prototyping to secure deployment and ongoing support.

Key Responsibilities:

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

If you're interested in the role, feel free to contact James Chapman at 07903 438136. I would be happy to have a confidential chat and share more details.