Sergiy Korolov

Sergiy Korolov, Co-CEO of Railsware and co-founder of Mailtrap, shares a riveting journey from a 20,000-test-email fiasco to crafting a seven-figure SaaS success. He explains how releasing an internal tool to the Rails community sparked viral growth and the slow pivot from blocking to sending emails. Discover his insights on using customer interviews for pricing strategies, the surprising role of signup surveys, and validating features with a fake menu item. Sergiy also delves into the challenges of scaling and competing in the email delivery space.

Sergiy Korolov, Co-CEO of Railsware and co-founder of Mailtrap, shares insights on value-focused product development. He emphasizes the crucial distinction between shipping features and genuinely delivering value, urging teams to prioritize user problems over mere feature lists. Sergiy introduces the BRIDGeS framework, which helps clarify problems before solutions and guides effective strategy pivots. He discusses the importance of user research and validation, demonstrating how real-world examples like Mailtrap highlight demand before feature development.

Sergiy Korolov, Co-CEO of Railsware and co-founder of Mailtrap, explores the emerging trend of vibe-coding versus traditional software development approaches. He defines vibe-coding, discussing its potential influence and limitations. The conversation delves into why vibe-coding has surfaced, the role of AI tools in enhancing development, and engineers' reactions to this innovate method. Sergiy also shares best use cases, highlighting that while vibe-coding can help with prototypes, it struggles to scale for complex products.