Security-Cleared Principal Software Engineer (Remote/Hybrid)

Raytheon Systems; City Of London; On-site; GBP 90,000 - 130,000; Full time

Benefits offered by this job

Competitive salary

Contributory Pension Scheme

Life Assurance

25 days holiday

Company bonus

Flexible benefits

Volunteering days

Flexible working

Job summary

Raytheon UK is seeking a Principal Software Engineer in London for a permanent, onsite position. You will join a cross-functional software dev team delivering critical software for defence and aerospace projects.

Candidates must hold an active eDV clearance and have hands-on experience across JavaScript/TypeScript, Python or Java, REST APIs, and cloud/container deployment. The role emphasizes collaboration, architecture, and continuous improvement within agile practices.

Qualifications

• Proficient in JavaScript frameworks (React, NextJS) and modern web tech.
• Strong TypeScript and Python/Java fundamentals for backend/frontend work.
• Experience building RESTful APIs and OpenAPI specifications.
• Familiarity with cloud platforms (AWS/Azure) and container orchestration.
• Knowledge of CI/CD pipelines, IaC, and version control (GitLab).

Responsibilities

• Develop and deploy critical software within a cross-functional team.
• Design and build software using industry best practices.
• Collaborate with stakeholders and other engineers.
• Contribute to milestones and team improvements.
• Drive continuous improvement and technical direction.

Skills

JavaScript

TypeScript

Python

Java

REST API

OpenAPI

Cloud AWS

Kubernetes

Docker

Terraform

PostgreSQL

Elasticsearch

Unit testing

Mocha/Jest

Agile

GitLab

Tools

Docker

Kubernetes

OpenShift

GitLab

Job description

Raytheon UK is seeking a Principal Software Engineer in London for a permanent, onsite position. You will join a cross-functional software dev team delivering critical software for defence and aerospace projects.

Candidates must hold an active eDV clearance and have hands-on experience across JavaScript/TypeScript, Python or Java, REST APIs, and cloud/container deployment. The role emphasizes collaboration, architecture, and continuous improvement within agile practices.