HashedIn by Deloitte Interview Questions
& Process

So HashedIn by Deloitte came to our campus for SDE and SDET roles. I applied and my resume got shortlisted for the online assessment. It was a test with 3 coding questions: Easy, Medium, Hard. I managed to solve the Easy and Medium ones. For the Hard one, I passed most test cases but not all. After that, I was shortlisted for the interview rounds. On Day 2, we had the interviews. Round 1 was Technical, covering coding, database, and SQL. They asked questions on database design for a Facebook-like site with SQL queries, finding the 75th, 76th, and 77th lowest salaries, and coding problems like Minimum Window Substring and a String decoding problem. I did above average and moved to the next round. Round 2 was all about Database Design, focusing on system design and database concepts. The main task was to design a Movie Booking System, including the database schema, E-R Diagram, relationships, constraints, and optimizations. The interviewer went deep into my design, suggested improvements, asked SQL queries on my schema, discussed normalization, and drilled down on my internships and projects, reviewing my resume. No coding in this round. Round 3 was an HR Discussion with two panelists. They asked behavioral, situational, and company-related questions, assessing cultural fit and career goals. In the end, 10 students were selected from our campus: 8 for SDE and 2 for SDET.

So basically, for HashedIn by Deloitte's campus hiring, the first round was an online test which was a coding round. It had 3 coding questions, mainly focused on DSA like strings, sliding window, and prefix sums. It was for 90 minutes on the HirePro platform. No MCQs, just DSA coding questions. They were kinda medium-hard difficulty, so you really need to know strings, sliding window, prefix-sum, and hashing well. HirePro doesn't give any partial scores, your code has to pass all the test cases. You could use Java, Python, or C++.

The interview process was super clear and laid out nicely for hiring a software developer. They skipped any quantitative or aptitude questions and just went straight for coding skills and conceptual understanding, which I really liked. To start, they picked about 1100 students from my college based on resumes. Then, there was a coding test on their platform, kinda like HirePro, held on campus with supervision. It had 3 coding problems. After that, there were 3 interview rounds: L1 was for DSA and React, L2 was for System Design (this is where I was eliminated), and L3 was the HR round.

So, it was an on-campus thing for me. The first round had three questions: one on arrays, one on strings, and a tough dynamic programming one. I passed that. Then, on the second day, there were more rounds. Round 1 involved DSA like linked lists and arrays, merging sorted lists and intervals, another string question, React, Tailwind CSS, talking about achievements, some basic SQL, and projects. Round 2 was all about database design, specifically designing an e-commerce database, with medium-level SQL queries and questions on scaling and microservices. They also asked about a personal quality. Round 3 was more personal, asking about family, behavioral stuff, the political climate, and why I'm a better choice than AI for coding. Oh, and a final background check stage.