Principle Software Engineer

Department: Systems

Employment Type: Permanent

Location: Retford, Lincolnshire, Gamston Airport, Retford

Key Duties & 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

Technical Experience & Qualifications

• Hold a degree in Computer Science, Software Engineering, or equivalent practical experience
• Have a proven track record of owning software delivery from inception through to production and maintenance
• Thorough understanding and experience in software development lifecycles, requirements management and traceability - e.g. Agile, V-model, DOORS
• Must be eligible for UK SC clearance

Skills Profile

• Highly competent in Python, JavaScript (React), Docker and AWS 
• Working knowledge of relational and NoSQL databases (e.g. PostgreSQL, MongoDB, DynamoDB)
• Expertise in software engineering fundamentals, including object-oriented programming
• Exposure to AWS services (e.g. EC2, Lambda, CloudWatch)
• Familiarity with Git and collaborative development workflows
• Some experience with Docker or containerised environments
• Strong skills with CI/CD practices and automated testing
• Strong understanding of Linux environments
• Strong problem-solving skills and a lifelong learner
• Communicate clearly and work effectively in a team
• Working within regulated environments
• A proactive mindset
• Naturally default to data-driven decision making