The Colossus article gives readers rare access to the culture, pace, and problem-solving at Anduril Industries, told by Adnan Esmail, former senior vice president of engineering and now co-founder of robotics startup Physical Intelligence. The article blends memoir with technical anecdotes to show what it took to build Anduril from a tiny startup to a multi-billion-dollar defense tech company.
Esmail opens with a personal scene: calibrating radar equipment from a hotel pool deck while explaining work to his young son. That moment illustrates the blending of intense engineering focus and improvisation that defined early product development. His story charts Anduril’s growth from an eight-person team in 2018 to more than 4,000 employees and three dozen deployed systems within six years.
The core theme is speed and ownership. Esmail describes makeshift early prototypes, such as a surveillance tower built from a telephone pole, a gaming computer, and store-bought parts, that nonetheless delivered real capability and helped earn pilot programs with U.S. Customs and Border Protection. Teams worked long days in austere conditions, testing drones in desert heat and debugging systems by hand.
Engineering at Anduril was organized around rapid feedback cycles, minimal bureaucracy, and a bias toward building demonstrable systems quickly. Rather than relying on traditional defense contractors’ slow cadence, the team pushed “tracer bullets” through complex problems to find workable solutions in weeks, not years. That approach yielded products such as the V2P interceptor drone, refined through iterative tests and firmware development under tight deadlines.
Esmail also reflects on leadership and structure. As the company scaled, Anduril built a product engineering organization that balanced deep technical expertise with shared frameworks and reusable components. This kept teams aligned and allowed them to tackle diverse challenges across hardware and software domains.
The article frames Anduril’s engineering environment as thrilling and intense, a place where ambitious problems meet a culture that prizes simplicity, urgency, and deep ownership.
