SEO for 2 Swedish Websites

I need an SEO expert for my two websites based in Sweden. The primary goal of the campaign hasn't been defined yet, but it's likely to involve a combination of increasing traffic, improving search engine rankings, and driving sales.

Please note that specific aspects of SEO haven't been specified. Therefore, I would appreciate it if you could provide a comprehensive plan that covers on-page, off-page, and technical SEO.

Ideal Skills and Experience:
- Proven SEO experience, particularly with Swedish websites
- Excellent understanding of both local and international SEO
- Ability to develop and implement a comprehensive SEO strategy
- Strong analytical skills to track and report on SEO performance
- Knowledge of the latest SEO trends and best practices.

Please include previous case studies where you've successfully improved a websites SEO performance.