Selenium webdriver- Not able to click on option which becomes visible on hover - selenium

Question

Here i'm using linkedin for the learning purpose & want to perform the action on Edit profile=> work experience=> Add position. Here "Add position" button comes under work experience which becomes visible on hovering to that specific area. Look at my code,
driver.findElement(By.id("login-email")).clear();
driver.findElement(By.id("login email")).sendKeys("email id");
driver.findElement(By.id("login-password")).clear();
driver.findElement(By.id("login-password")).sendKeys("password");
driver.findElement(By.name("submit")).click();
driver.findElement(By.linkText("Home")).click();
driver.findElement(By.linkText("Profile")).click();
Thread.sleep(3000);
/* To scroll the page down */
JavascriptExecutor jse = (JavascriptExecutor)driver;
jse.executeScript("window.scrollBy(0,250)", "");
/* To hover mouse on required option*/
Actions hover=new Actions(driver);
hover.moveToElement(driver.findElement(By.xpath("id('background-experience')/div[1]/div/button[1]")));
driver.findElement(By.xpath("id('background-experience')/div[1]/div/button[1]")).click();
Thread.sleep(5000);
/* To Edit company name */
driver.findElement(By.xpath("id('companyName-positionCompany-position-editPositionForm')")).clear();
driver.findElement(By.xpath("id('companyName-positionCompany-position-editPositionForm')")).sendKeys("testing company");
This is so on continued to edit work details but when i execute, it stops the page at work experience & not able to click on add position button to edit work.
It gives error on "edit company" code line. Can anyone help me to perform the same?

Answer 1

//Hover
Actions actions = new Actions(driver);
IWebElement menuHoverLink = driver.FindElement(By.XPath("//*[#id='background-experience']/div[1]/div/button[1]"));
actions.MoveToElement(menuHoverLink);
actions.Build().Perform();
driver.FindElement(By.XPath("//*[#id='background-experience']/div[1]/div/button[1]")).Click();