(RIVN) is losing its vice president of manufacturing, Tim Fallon, to Jeep, Dodge owner Stellantis (STLA) to spearhead its upcoming EV offensive in the US. For the past two years and seven months, Fallon has helped Rivian scale the output of not one but three electric vehicles. Before that, Fallon worked for Nissan for 16 years in various plant manager roles, including vice president at its Canton Assembly Plant in Mississippi.

Fallon is now pursuing a new opportunity, according to an internal email sent to employees from CEO RJ Scaringe, viewed by . A Rivian spokesperson confirmed the departure, saying, “We’ve had different leaders as we approach different levels of scaling our business.” “We’re positioning the organization structure for the future,” the spokesperson added.

Fallon is the latest of a string of high-level leaders who have left the company recently. Fallon will join Stellantis as head of manufacturing in North America, effective September 2. The transition comes as Stellantis prepares for its EV offensive in the US.

Meanwhile, Carlo Materazzo will lead Rivian’s manufacturing in the interim. Rivian , a former Stellantis exec, last November. Stellantis is launching the first Jeep, Dodge, and Ram electric vehicles in the US in the coming months.

Jeep this summer. The electric luxury SUV is redesigned with a new illuminated grille and other design upgrades for the modern age. Powered by the STLA Large platform, Jeep’s EV gets over 300 miles range and.