In designing Git Work, I must analyse other relevant services.

I'm publishing this article as a draft so it's out there and I can get feedback from you guys, perhaps I missed something?

Codemill

• "Marketplace for pull requests", so focused on pull requests
• Integrated with GitHub
• Requires sign in to see the available work
• "Pull work" approach, the Worker is in control
• Nothing about disputes
• Has an alerting system
• Charge per piece of work
• 10% commission
• "[..] elastic, scalable, on demand and pay-as-you-go development power [..]" source.

BountySource

• "Bountysource is the funding platform for open-source software"
• No support for private projects
• Unit of work is an Issue, with a link to a PR
• Bounties offered by users
• Bounties potentially from multiple users
• Not ties to a specific workflow
• Comprehensive integrations including GitHub, and it's open source
• 10% commission as of 20 April 2017.

Upwork

• "Work with someone perfect for your team"
• Unit of work is a project
• Bidding and proposal process (write a cover letter!)
• Reputation and reviews
• Work is mostly large, per-project
• Freelancers offer free consultations during bidding
• Act as Escrow, has complex dispute resolution
• Hourly charge, estimate number of hours
• 2.75% + 20%/10%/5% commission as of 20 April 2017.

Toptal

• "Hire the top 3% of freelance talent"
• Hiring is based on passing their tests and interviews
• "interview [..] 40 hours of your time" source.
• $500 deposit
• Charged per hour/week/etc, looks per-project
• Unclear how work is agreed upon
• Dispute process is unclear

LinkedIn ProFinder

• "ProFinder helps you hire top local freelancers"
• Proposal driven process, similar to Toptal
• Pricing: after 10 proposals, requires LinkedIn Premium Business account
• Beyond software development, they mention accountants for example

Usage

Some people use these services as a springboard.