(written from a Production point of view)
Alex Jaeger is a long-time employee at Industrial Light & Magic. He has worked on two Star Trek films thus far. First, he was the Visual Effects Art Director for concept design and animatics on Star Trek: First Contact. Over a decade later, he served as ILM's Visual Effects Art Director on 2009's Star Trek.
On First Contact, Jaeger was principally responsible for the Borg battle at the beginning of the film. He designed several new CGI models for the film, including the Akira-class, Steamrunner-class, Saber-class, and Norway-class, the first one being his favorite.  Jaeger was interviewed for the special feature "Industrial Light & Magic: The Next Generation" on the 2009 DVD release of Star Trek: First Contact.
When Jaegar first joined ILM, he worked as a model maker on such films as Congo and Mission: Impossible. First Contact was his first project as a Visual Effects Art Director. Jaegar's other credits in this role have included Starship Troopers, Galaxy Quest, Pearl Harbor, and Star Wars: Episode II - Attack of the Clones. More recently, he worked on The Island, Mission: Impossible III, and Transformers, all of which were written by Star Trek scribes Alex Kurtzman and Roberto Orci.
Jaegar has also worked as a concept and storyboard artist for ILM on films such as Men in Black, Spawn (produced by Todd McFarlane, and Terminator 3: Rise of the Machines. In addition, he was lead concept designer on the 2003 film Hulk, which, like Star Trek, starred Eric Bana.