Sukumar Ramanathan (1961-2025) was a mechanical engineer, Silicon Valley executive, and devoted father and husband. He was a friend to many, with a natural gift for making those around him feel heard and valued. Born in India and educated at the National Institute of Technology, Tiruchirappalli, Suku built a distinguished career at companies including Sun Microsystems, LinkedIn, Amazon Web Services, Stripe, Anaplan, and Parafin. But his professional success was only part of who he was. Suku lived with his eyes wide open. He built a life of daily rituals and deep relationships. He traveled to 75 countries across seven continents. He expertly curated books, films, and restaurants. He was a connoisseur of jams and fried chicken sandwiches. He explained technical topics with delight, from packet switching to track-and-field strategies to the nuances of SaaS economics.  With his wife Latha, he created a home in Menlo Park filled with books, music, and laughter, raising three children-Rekha, Radha, and Rohan-with the example that curiosity, kindness, and integrity matter more than accolades. He coached soccer, took calls from young entrepreneurs, and had time for anyone who reached out. Suku's writing reveals his extraordinary ability to draw connections across disciplines, his gift for noticing beauty and absurdity in equal measure, and his belief that excellence is about showing up fully-with integrity, humility, and care. He passed away in July 2025, just months before what would have been his 64th birthday