Python Engineer - SC Cleared - Fully Remote

Coltech; Remote; GBP 50,000 - 70,000; Full time

Job summary

A leading defence technology firm is seeking a Python Engineer to enhance its secure data processing platform. In this fully remote role, you'll develop microservices and backend components while applying secure coding practices. Ideal candidates will have extensive Python experience, strong knowledge of APIs and microservices, and experience in regulated environments. This engages you in a critical defense program focused on data security, with a hands-on approach to development and collaboration across teams.

Qualifications

• Proven experience with Python in a hands-on capacity.
• Understanding of event-driven architectures and secure coding practices.
• Experience with containerised applications including Docker.

Responsibilities

• Develop and maintain Python microservices for secure data exchange.
• Translate prototypes into production-grade code.
• Collaborate with various engineering teams and produce documentation.

Skills

Python

APIs

Microservices

Secure development practices

CI/CD

Tools

Docker

Kubernetes

Job description

Job Title: Python Engineer

Location: Fully Remote (England)

Clearance: Active SC Clearance Required

Duration: 12 month contract - will extend

Project: Major Defence Programme – Secure Data Exchange Platform

Core Mission

Build and harden Python based services and data processing components that underpin a secure, scalable, distributed defence platform. Transform prototype code into operational, production ready modules.

This is a hands on engineering role requiring strong Python skills, experience in secure or mission critical environments, and the ability to contribute across backend services, data pipelines, integration layers, and automation.

Key Responsibilities

• Develop, refine, and maintain Python microservices and backend components supporting secure data exchange.
• Translate prototype logic and PoC implementations into scalable, production-grade code.
• Implement APIs, integration layers, and event-driven services aligned to agreed architecture patterns.
• Apply secure coding practices, identity controls, and data protection mechanisms.
• Contribute to CI / CD pipelines, automated testing, and integration with Infrastructure-as-Code workflows.
• Improve performance, fault tolerance, and observability across distributed services.
• Collaborate closely with solution architects, security architects, and engineering teams.
• Support validation, hardening, and iterative refinement of backend services.
• Produce technical documentation, service diagrams, and implementation notes aligned with programme standards.

Required Experience

• Strong hands on experience with Python
• Solid understanding of APIs, microservices, event-driven architectures, and messaging patterns.
• Practical experience with secure development practices, authentication / authorisation, and zero-trust principles.
• Experience working with containerised workloads (Docker; advantage if familiar with Kubernetes).
• Proficiency with CI / CD tooling, automated tests, and modern software engineering practices.
• Ability to work effectively within a senior, cross-functional architecture and engineering team.
• Strong knowledge of networking fundamentals, data structures, and secure service design.
• Comfortable working in a highly regulated, security-focused environment.

Apply now for immediate consideration