The interview at Blip is known for being quite technical and challenging, especially for software engineering roles. From what you said, it seems they put a lot of emphasis on design patterns, particularly singletons, which makes sense since Blip deals with high-performance and scalable systems. The interview process typically involves several stages: Initial Screening – A chat with HR to get to know the candidate and assess motivation. Technical Challenge – This could be an online coding test or an exercise to solve an algorithmic or architectural problem. Technical Interview – This is where they ask about data structures, design patterns (like singleton), system architecture, concurrency, and best practices. Cultural Fit Interview – To evaluate if the candidate aligns with the company’s values and way of working. They really value clean code, design patterns, and scalability, which explains their obsession with singletons!