The Biotech Startups Podcast

In this part of the podcast, Javier Tordable shares his early career journey—from starting at Microsoft to spending 16 years at Google as a Staff Engineer and Technical Director. He reflects on the engineering-driven culture at Microsoft and the welcoming environment that shaped his foundation in tech.

In this episode of The Biotech Startups Podcast, Jon Chee sits down with Javier Tordable, founder and CEO of Pauling AI, a company building the first fully autonomous drug discovery platform that enables scientists to go from a research idea to validated drug molecules in days, not years. Named after Linus Pauling, the only person in history to win two unshared Nobel Prizes, the company reflects Javier's conviction that first principles engineering can be applied to one of science's most consequential problems.

In this episode of The Biotech Startups Podcast, host Jon Chee continues his conversation with Stephanie Sirota, Partner and Head of Strategic Partnerships at RTW Investments, as she traces RTW’s evolution from a lean public-equity fund into a major life sciences platform spanning crossover investing, company creation, and global commercialization. Stephanie explains how RTW built the modern crossover ecosystem, why they chose to found Rocket Pharma instead of a fleet of gene therapy startups, and how a disciplined, science-first research process underpins the firm’s long-term, concentrated investing strategy and deep alignment with LPs and portfolio founders.

In this episode of The Biotech Startups Podcast, host Jon Chee continues his conversation with Stephanie Sirota, Partner and Head of Strategic Partnerships at RTW Investments, as she reflects on her path from Lehman Brothers investment banking to macro hedge funds and ultimately biotech-focused investing and firm building. Steph shares how journalism training shaped her strategic thinking, what she learned from navigating multiple market crises, and how those lessons inform RTW’s approach to cycles, institutional architecture, and innovative funding models like royalty vehicles in today’s prolonged biotech bear market.

In this episode of The Biotech Startups Podcast, Jon Chee sits down with Stephanie Sirota, partner and head of strategic partnerships at RTW Investments, to explore how a coddled yet cosmopolitan upbringing, years of elite tennis competition, and a humanities-rich education at Columbia shaped her mental toughness, leadership style, and approach to partnering with life sciences innovators. From sports psychology and coaching to the value of breadth before specialization, Stephanie reflects on the experiences that built her resilience and curiosity long before she helped transform RTW into a leading life sciences investment firm.