CareerAddict

Backend Software Engineer

CV-Library

Posted on Jul 6, 2026 by CV-Library
Southampton, Hampshire, United Kingdom
Engineering
Immediate Start
Annual Salary
Full-Time
Backend Software Engineer - National Security

**PLEASE NOTE: Applicants MUST already hold DV Clearance to be considered

Romsey based

Copello are working with a leading technology and engineering company supporting customers across defence and security, delivering systems that operate in the most demanding and sensitive environments. As a Backend Software Engineer, you’ll help deliver mission- critical software to keep the UK safe, secure and prosperous. You’ll work on the feature development and maintenance of critical systems, solving complex, real-world problems

Responsibilities

* Write clean, secure and maintainable backend code

* Translate designs into working software, from concept to production

* Contribute to code reviews and shared technical decisions

* Design, build, test and document robust backend services

* Apply appropriate patterns using proven and emerging technologies

Skills and Experience

* Python

* Linux

* Bash scripting

* Git

* Docker

* Messaging or streaming technologies (e.g. Kafka or Apache Pulsar)

* Experience working in Agile/Scrum teams

* Tooling such as Atlassian or GitLab

* Exposure to CI/CD pipelines

Clearance

This role requires candidates to hold valid DV clearance.

If you feel you have the right skills and experience please apply now and we will be in touch for a further conversation

Reference: 225332396

https://jobs.careeraddict.com/post/113514587
CV-Library

Backend Software Engineer

CV-Library

Posted on Jul 6, 2026 by CV-Library

Print
Southampton, Hampshire, United Kingdom
Engineering
Immediate Start
Annual Salary
Full-Time
Backend Software Engineer - National Security

**PLEASE NOTE: Applicants MUST already hold DV Clearance to be considered

Romsey based

Copello are working with a leading technology and engineering company supporting customers across defence and security, delivering systems that operate in the most demanding and sensitive environments. As a Backend Software Engineer, you’ll help deliver mission- critical software to keep the UK safe, secure and prosperous. You’ll work on the feature development and maintenance of critical systems, solving complex, real-world problems

Responsibilities

* Write clean, secure and maintainable backend code

* Translate designs into working software, from concept to production

* Contribute to code reviews and shared technical decisions

* Design, build, test and document robust backend services

* Apply appropriate patterns using proven and emerging technologies

Skills and Experience

* Python

* Linux

* Bash scripting

* Git

* Docker

* Messaging or streaming technologies (e.g. Kafka or Apache Pulsar)

* Experience working in Agile/Scrum teams

* Tooling such as Atlassian or GitLab

* Exposure to CI/CD pipelines

Clearance

This role requires candidates to hold valid DV clearance.

If you feel you have the right skills and experience please apply now and we will be in touch for a further conversation
Print

Reference: 225332396

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