Web-Based Accounting Software Development

I need a developer to create a comprehensive web-based accounting software. The software must include:

Core Functionalities:
- Invoicing
- Expense Tracking
- Financial Reporting
- Standard accounting system with simplified data tables
- Conform to UK GAAP

Integration Requirements:
- Banking APIs
- Payroll Systems
- Budgeting Software
- Purchasing Software

Ideal Skills and Experience:
- Proven experience in developing web-based accounting software
- In-depth knowledge of UK GAAP
- Expertise in integrating with various third-party services, especially banking APIs and payroll systems
- Strong background in accounting principles and software development

Please provide examples of similar projects you've completed.