William Sewell

C#

Developer and project lead delivering farm, packhouse and airport software solutions. Experienced across C#, .NET, Maui, Blazor, WinForms and SQL.

• MAUI Mobile Applications
  Cross-platform mobile apps for iOS and Android, including field data collection systems and real-time monitoring solutions for agricultural clients
• Desktop Development
  WinForms and WPF applications for packhouse automation, airport management and farm operations. Includes Harvest Manager, Packstar and Airstar systems
• Blazor Web Applications
  Modern web interfaces for management dashboards, reporting systems and client portals with real-time data visualization
• API Development
  RESTful APIs hosted on IIS, Azure and on-premises servers. Integration with third-party systems and custom client applications

SQL

Database design and optimization for enterprise applications. System architecture and data management for production environments.

• Database Architecture
  Complete database design for London Oxford Airport, Bristol Airport and multiple farm management systems. Schema design, normalization and relationship modeling
• Stored Procedures & Optimization
  Complex business logic implementation, query optimization and performance tuning for high-volume transactional systems
• Data Synchronization
  Multi-site data syncing solutions for distributed systems. Real-time and batch synchronization across UK and European locations
• Reporting Solutions
  Custom reporting frameworks, SQL Server Reporting Services and data export systems for business intelligence and operational reporting

Client Projects

Full project lifecycle management from specification through deployment. Field work across the UK and Europe for major agricultural and aviation clients.

• Agricultural Systems
  Harvest Manager and packhouse solutions for Barfoots, Dyson Farming, Riviera, Drysdale and SummerBerry Portugal. Field implementation and on-site support
• Airport Management
  Airstar application and SQL database for London Oxford Airport and Bristol Airport. Operations management, scheduling and reporting systems
• Custom Solutions
  Python sensor systems for packhouse box-counting. Staff Control time tracking. Bespoke applications tailored to specific client requirements
• Implementation & Support
  On-site scoping, planning and deployment across UK and Europe. Client training, system maintenance and continuous improvement

CV

Download my full curriculum vitae for detailed information about my experience, skills, and education.