Design a LinkedIn for blue collar workers.

To design a LinkedIn for blue-collar workers, I'd focus on a mobile-first, user-friendly platform that prioritizes job matching, skill-building, and community. Key features would include:

1. Simplified Profile Creation: Easy-to-upload photos, straightforward skill listings (e.g., "welding," "plumbing," "heavy machinery operation"), and work history without requiring extensive written descriptions.
2. Visual Job Board: A highly visual interface showcasing job opportunities with clear information on location, pay, required skills, and company reputation. Short video introductions from employers could be a differentiator.
3. Skill Endorsements & Certifications: A system for peers and employers to endorse practical skills and for users to easily upload and display trade certifications.
4. Direct Messaging & Networking: Facilitating direct communication between workers and potential employers, as well as peer-to-peer connections for advice and support.
5. Local Focus: Emphasizing local job markets and community groups relevant to specific trades.
6. Training & Development Integration: Partnerships with trade schools and online course providers to offer accessible training and upskilling opportunities, with clear pathways to new certifications.

This platform would aim to bridge the gap in professional networking for a segment often underserved by traditional platforms, leveraging visual cues and practical application over formal education.