What Roche actually looks for
Roche, headquartered in Basel, Switzerland, runs two large, distinct businesses: pharmaceuticals, strong in oncology with drugs like Herceptin, Avastin, and Tecentriq, and diagnostics, where Roche is the largest in vitro diagnostics company in the world. Roche is also the majority owner of Genentech, the South San Francisco biotech that operates with meaningful independence in research and early development, so candidates should understand that Roche and Genentech, while connected, have distinct cultures and the interview process differs depending on which entity you're applying to. Roche's strategy leans heavily on connecting diagnostics and pharma, using companion diagnostics to identify which patients will respond to a specific therapy, which is a genuinely differentiated position compared to pharma-only competitors. Interviewers, especially in R&D and medical roles, expect candidates to understand this integrated personalized-medicine model rather than treating diagnostics and pharma as unrelated business lines.
Common questions and how to answer them
How does Roche's diagnostics business support its pharmaceutical strategy? Explain companion diagnostics, tests developed alongside a specific drug to identify which patients are likely to benefit, using an oncology example if you can, since this connects Roche's two divisions in a way most pure pharma companies can't replicate. How would you describe the relationship between Roche and Genentech? Show you understand Genentech operates with real autonomy in research despite majority Roche ownership, rather than treating them as a single undifferentiated entity. Tell me about a time you had to work across two teams with different priorities or cultures. Directly relevant given Roche's structure; use a real example of navigating organizational boundaries without letting them slow down the work. Across all three, make clear whether you're speaking about Roche's pharma business, its diagnostics business, or Genentech specifically, since conflating them is a common and avoidable mistake.
How to prepare
Clarify whether you're interviewing for Roche directly or for Genentech, since they have distinct interview processes despite the ownership relationship, and don't assume they're interchangeable. Understand at least one example of a Roche companion diagnostic paired with a specific therapy, since this integrated model is central to how Roche differentiates itself. If you're in a diagnostics-focused role, be ready to discuss Roche's position as the largest in vitro diagnostics company globally and what that scale enables. Expect the interview to clarify early on which entity, Roche or Genentech, you're being evaluated for, since expectations around research autonomy and process differ meaningfully between the two.