Software Developer

DEA Specialised Airborne Operations

Senior Software Engineer contributing to the design, development, and delivery of mission-critical systems. Focused on high-quality software collaboration in a regulated environment.

Posted 7/22/2026contractRetford • 🇬🇧 United KingdomMid-LevelSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in architecting and maintaining scalable applications using Python and React, with a strong focus on delivering solutions from design to production. Proficient in developing Progressive Web Apps and integrating REST APIs while ensuring compliance with customer and regulatory requirements.

Highest-signal resume keywords

Python Application DevelopmentReact Application DevelopmentREST API IntegrationFlask FrameworkSoftware Delivery Lifecycle

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Hard Skills

Application ArchitectureScalable Application DevelopmentProgressive Web AppsEvent-Driven ServicesTroubleshootingDocumentation WritingSoftware EngineeringSoftware MaintenanceProblem SolvingProduction Support

Soft Skills

Clear CommunicationTeam CollaborationCustomer Focus

Certifications & Qualifications

Degree in Computer ScienceDegree in Software Engineering

Industry Keywords

Aircraft Mission SystemsRegulatory RequirementsMulti-Disciplinary Team

Tech Stack

Tools & technologies

FlaskPythonReact

About the role

Key responsibilities & impact

Architect, document, build, and maintain scalable applications using Python and React
Contribute to solutions from design through to delivery and support
Develop applications, including Progressive Web Apps, using React, Flask, and Python
Build and integrate REST APIs and contribute to event-driven services
Troubleshoot issues to resolution across aircraft mission and business systems
Deliver changes regularly and communicate progress clearly within the team
Write and maintain clear documentation to support colleagues, and the customer experience
Work within multi-disciplinary team, contributing to customer and regulatory requirements

Requirements

What you’ll need

Hold a degree in Computer Science, Software Engineering or equivalent practical experience
Have a proven track record of software delivery from inception through to production and maintenance

Benefits

Comp & perks

- Active SC Clearance (existing ideally, eligible mandatory)
- Experience with Python and building applications using React
- Working knowledge of relational and/or databases such as PostgreSQL, MongoDB, DynamoDB
- Understanding of software engineering fundamentals
- Comfortable with AWS services (e.g. EC2, Lambda, or similar)
- Familiarity with Git and collaborative development workflows
- Some experience with Docker and containerised environments
- Awareness of CI/CD practices and automated testing
- Understanding of Linux environments
- Strong problem-solving skills and a lifelong learner
- Ability to communicate clearly and work effectively in a team
- Working within regulated environments
- A proactive mindset and eagerness to develop your skills
- Naturally default to data-driven decision making
- Champion engineering excellence, leading code reviews, shaping automated testing strategies, and writing clean, maintainable code
- Mentor and upskill mid-level and junior engineers, acting as a technical multiplier for your team
- Architect and build reusable, performant front-end components and drive front-end architecture using React
- Design and scale microservices-based systems and APIs, proactively addressing latency, reliability, and system bottlenecks
- Implement robust system resilience (e.g., retries, timeouts, circuit breakers) and drive a security-first approach to development
- Define and implement observability strategies using modern logging and monitoring tools to ensure system health
- Optimise and manage CI/CD pipelines to ensure smooth, predictable, and secure deployment lifecycles
- Collaborate with product and design teams to translate complex business requirements into scalable technical solutions