Principal Software Engineer, Aviation Systems & AWS Cloud

DEA Specialised Airborne Operations; Laneham; On-site; GBP 95,000 - 130,000; Full time

Job summary

DEA Specialised Airborne Operations in the United Kingdom seeks a Principal Software Engineer to own airborne software architecture and AWS cloud infrastructure, ensuring Secure by Design while delivering robust aviation mission systems. You will build high-quality software, collaborate across the organisation in a highly regulated environment, and grow technical influence.

You will design and implement front-end and back-end systems using Python and React, and contribute to CI/CD,

Qualifications

• Hold a degree in Computer Science, Software Engineering, or equivalent practical experience.
• Proven track record of owning software delivery from inception through to production and maintenance.
• Eligible for UK SC clearance.

Responsibilities

• Design, build, and maintain scalable applications using Python and React.
• Contribute to solutions from design through to delivery and support, with guidance from senior engineers.
• Develop applications, including Progressive Web Apps, using React, Flask, and Python backends.
• Build and integrate REST APIs and contribute to event-driven services.
• Troubleshoot and resolve issues across business and aviation systems, owning resolution.
• Deliver robust changes consistently and communicate progress clearly.
• Write and maintain clear technical and user documentation.
• Work within a multi-disciplinary team, contributing to customer and regulatory requirements.
• Write clean, maintainable code and continuously improve your approach.
• Build reusable components and contribute to front-end architecture using React.
• Apply basic resilience patterns such as retries and timeouts, with support from senior engineers.
• Consider performance and scalability, including latency and reliability.
• Contribute to microservices-based systems and API development.
• Follow secure development practices and support security requirements.
• Help implement observability through logging and monitoring tools.
• Use CI/CD pipelines to build, test, and deploy your work.

Skills

Python

React

AWS

Docker

CI/CD

Linux

Git

Databases

Education

Bachelor's in Computer Science

Equivalent practical experience

Tools

PostgreSQL

MongoDB

DynamoDB

REST API frameworks

CI/CD tooling

Job description

DEA Specialised Airborne Operations in the United Kingdom seeks a Principal Software Engineer to own airborne software architecture and AWS cloud infrastructure, ensuring Secure by Design while delivering robust aviation mission systems. You will build high-quality software, collaborate across the organisation in a highly regulated environment, and grow technical influence.

You will design and implement front-end and back-end systems using Python and React, and contribute to CI/CD,