Upwork is a freelance marketplace that connects businesses and individuals with freelancers who can provide a variety of services, including digital marketing. On Upwork, you can find digital marketing professionals with a wide range of skills, including search engine optimization (SEO), social media marketing, content marketing, email marketing, and paid advertising.

Some of the specific digital marketing services that freelancers on Upwork might offer include:

1. Keyword research and optimization
2. On-page and off-page SEO
3. Content creation and curation
4. Social media account management and strategy
5. Influencer marketing
6. Email marketing campaigns
7. Google Ads, Facebook Ads, and other paid advertising management
8. Analytics and reporting
9. Landing page design and optimization

When hiring a digital marketer on Upwork, it's important to clearly communicate your goals and expectations, and to review the freelancer's portfolio and client reviews before making a hiring decision.