Dunnhumby

Online interview with 3 rounds including HR screening, Technical and Hiring Manager. The questions were mostly around core technical concepts including OOPs, SQL, file handling, LINQ and distributed systems. I interviewed for a backend engineer role.

The interview was fine overall, but when I accidentally swapped RANK and DENSE_RANK, one interviewer smirked. Feeling disrespected, I completely lost interest in answering his ques, despite the second interviewer's pleasant demeanor.

First round was aptitude. Then group discussion round with a case study. In the third and final round, the asked what Artificial Intelligence is, evaluation techniques. They asked about the group discussion round, with data analytics as the central question. Was good overall.

Interview process was smooth. They took all interview in a single day at office after got selected in the screening round but They didn't have money to give from starting I have clarified my expectations later on when you cleared all rounds they say that you are not qualified on leadership round but tech stack so we can't give as per your expectations

The interview process was smooth, well-organized, and very respectful of my time. Recruiters communicated clearly at every stage and provided helpful guidance on what to expect next. The technical interviews focused on real-world SRE scenarios, with a balanced mix of system design, troubleshooting, and practical problem-solving. Each interviewer was friendly, supportive, and genuinely interested in understanding how I think rather than testing trick questions. The discussions felt collaborative, and the overall experience gave me a strong sense of the team’s professionalism and positive engineering culture.