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Copello Global
Principal Software Engineer

Principal Software Engineer

On site

Cheltenham, United kingdom

Senior

Full Time

15-09-2025

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Skills

Python Java JavaScript SQL MongoDB GitLab CI/CD Docker Kubernetes Jenkins Azure AWS Agile CI/CD Pipelines OpenShift

Job Specifications

Principal Software Engineer - Security Cleared

(High Level of UK Government Security Clearance Required)

Salary: up to PS100k + Benefits

Copello Global is supporting a confidential client within the defence/technology sector in their search for an experienced Software Engineer to join them in Cheltenham. This is an exciting opportunity to work with a global leader on highly impactful mission-critical programmes.

The Role

Design, build, and maintain secure, scalable software
Write, review code, and support CI/CD pipelines
Break down complex features and manage them within Agile workflows
Deliver technical demos to internal and external stakeholders

Skills Required

Proficiency in Java, Python, or JavaScript
Experience with AWS or Azure
Familiarity with Jenkins, GitLab, Docker, OpenShift, or Kubernetes
Working knowledge of SQL, MongoDB, or Elasticsearch

The Package

Work on meaningful, mission-supporting projects
Benefits include private healthcare, performance bonuses, and pension schemes
A culture that values innovation, growth, and work-life balance

Interested?

Apply today or reach out for a confidential chat through Copello Global.

Chantelle at Chantelle@copello.co.uk or call 07769 879801

About the Company

Copello is a niche talent provider within Defence, Engineering & Technology and Information Security. Established to offer a consultative service that is focused on delivering the best talent and opportunities to our Client and Candidate community. We use the term “Community” as we believe that all three, recruiter, client and candidate are intrinsically linked and our experience shows that a solid connection will deliver the best results. Our focus is to ensure that we add value and drive change in an over populated recr... Know more