Andy Jassy may not be famous like his boss Jeff Bezos, but he runs Amazon Web Services (AWS), perhaps the most important part of the Amazon empire.
AWS sells data storage and processing for companies that don't want the headache of running their own IT infrastructure. It's a business known as cloud computing and it has only been around 10 or 15 years.
Its rapid expansion means AWS supplied 70% of Amazon's profits in its most recent quarter.
In an interview with the BBC, Mr Jassy explained that the division began with start-ups such as Airbnb, Deliveroo and Pinterest, who built their businesses from scratch on top of AWS, but that in recent years more established firms have joined them.
Despite that success, the business is facing some real tests - not least fierce competition from Microsoft.
Tensions with US government
A big blow hit in October, when the US government awarded a juicy $10bn (£7.6bn) contract from the Department of Defense (DoD) to Microsoft.
Amazon's AWS had been expected to win the Joint Enterprise Infrastructure (Jedi) project. It is challenging the decision, saying there had been interference from the White House.
In a document made public in December, AWS explained why it was protesting against the Jedi contract award. "The question is whether the president of the United States should be allowed to use the budget of DoD to pursue his own personal and political ends," the filing stated.
"DoD's substantial and pervasive errors are hard to understand, and impossible to assess separate and apart from the president's repeatedly expressed determination to, in the words of the president himself, 'screw Amazon'.
Speaking to the BBC at the annual AWS event in Las Vegas, Mr Jassy said the decision was dangerous, as Amazon had "the best possible technology infrastructure platform".
Mr Jassy also said it was a "very dangerous" precedent if government was not going to base decisions on "objective valuations".
When asked whether the Jedi debacle would change the way AWS would deal with the government in the future - Mr Jassy said it would not.
Will that relationship improve? It seems unlikely as President Trump has made his dislike of Amazon clear. In part that's because Amazon founder Jeff Bezos also controls the Washington Post newspaper, which the president considers hostile towards him.