Windows Productivity Tool Development

I need an experienced software developer to create a productivity tool for Windows. The tool should primarily focus on collaboration features.

Key requirements:
- Must be compatible with Windows.
- Should include robust collaboration tools.

Ideal Skills and Experience:
- Proficiency in Windows application development.
- Experience in building collaboration tools.
- Strong problem-solving skills and attention to detail.
- Ability to work within budget constraints.

Please provide examples of similar work done. Looking forward to your bids!