Eugene Yan's latest essay, “Advice for New Principal Tech ICs (i.e., Notes to Myself),” offers a personal take on a demanding career milestone. Written from the perspective of someone who has just stepped into a principal individual-contributor role, the piece distills what the author picked up from mentors and role models while working at Amazon.
The central theme is that technical ICs at this level are no longer measured only by the code they ship. Instead, they must raise the bar for their entire team, taking on problems that are ill-defined and leading through credibility rather than position. The essay frames this as a learning process, not a sudden promotion.
The advice is practical and grounded in specific workplace experiences, yet the underlying lessons are widely applicable. For anyone moving into a senior technical role, the notes emphasize deliberate growth: seeking feedback, observing others, and consciously refining how to influence both people and technical direction.