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

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

Job summary

A unique opportunity for an experienced Lead Python Developer to join a critical programme in the UK Defence sector. The role involves designing and developing secure software systems, guiding cross-functional teams, and ensuring engineering excellence. Applicants should have experience in regulated environments and hold active DV clearance for this impactful position.

Qualifications

• Experience in leading teams in secure software development.
• Familiarity with Defence or regulated industries.
• Active DV clearance.

Responsibilities

• Lead the design and development of secure Python-based software systems.
• Mentor developers and enforce best practices.
• Collaborate with stakeholders for requirements and technical progress.

Skills

Python

CI/CD

Containerisation

Agile

Tools

Docker

Kubernetes

Job description

Social network you want to login/join with:

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Client:

iO Associates - UK/EU

Location:

colchester, United Kingdom

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 me, James Chapman, at 07903 438136. I'd be more than happy to have a confidential chat and share more details.