Is the SEO implementation same for all the search engines like Bing, yahoo etc?

Google, Bing & Yahoo Similarities

• Quality of a backlink profile holds weight in all the three search engines.
• Results for local search based on geographic locations.
• Paid search also works the same for all.
• All the three favors .edu and .gov websites. 

Google, Bing & Yahoo Differences

• Google’s algorithm recognizes synonyms of keywords, but exact keywords are best for Yahoo and Bing.
• For a double meaning search query, Google shows the most popular website while the other two shows local result first.
• Domain Age/Page Authority is not a factor for Google but Bing & Yahoo puts importance on domain age.
• Google cannot crawl and understand Flash websites. Bing understands and crawls Flash websites very well.
• Google and Bing have mobile friendly label which does good on search results, Yahoo has not yet taken this trait.

Yahoo and bing have an alliance and search result will be same for both. The technical aspects such as Page Load Speed, Robots.txt, Redirects, etc are all same for optimizing on search engines.