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Copello Global

Back End Developer

Actively Reviewing

Copello Global

4–8 yrs exp Posted 10 hours ago  · Apply by Sep 16, 2026

Backend Software Engineer


**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, or send your CV to [email protected] and we will be in touch for a further conversation