I applied online. I interviewed at Jash Data Sciences (Pune) in Mar 2026
Interview
The interview process at Jash Data Sciences is highly rigorous. To proceed to the further rounds, a candidate must solve every technical question with 100% accuracy. During my L2 technical debugging round, I was tasked with fixing a Python function for a drone navigation system. Although I identified and fixed a major logic error, I missed a second subtle mistake involving coordinate initialization. Because the company requires a perfect score to move forward, this single oversight resulted in my disqualification. The process is a true test of attention to detail and technical precision.
Interview questions [3]
Question 1
Question 1: Bridge Crossing Problem (Python)
Problem Description:
You are given a bridge represented as a list of integers where 1 is an intact section and 0 is a hole. A person must cross from start to end. Walking between two 1s is 1 step. Jumping over 0s counts as the distance between the two 1s. Find the longest jump (maximum distance) required to cross. If the bridge starts or ends with 0s, assume the person jumps from/to solid ground outside.
Sample Input: bridge = [1, 0, 0, 1, 0, 1, 0, 0, 0, 1]
Sample Output: 4
The Great Department Audit: Balancing the Medical Staff at City Hospita
The hospital board just a scovered that some plepartments are overwhelired anile others are understaffed The Chief Medical Officer storms into your office "We need to see exactly how many doctors we have in each department-NOW! She suspects the Cardiology department is overloaded while Emergency might be dangerously understaffed. Your mission. Write a SQL query to display each department name along with the count of doctors assigned to it. Make sure to include ALL departments (even those with zero doctors-we need to know where the gaps arel). Order the results by doctor count in ascending order so the CMO can immediately see which departments need attention. The hospital's efficiency-and patient care - depends on getting this right!
▲ CRITICAL WARNING: Column names in your answer must EXACTLY match those shown in the sample output (including capitalization, spacing, and punctuation). ANY deviation in column naming will result in ZERO MARKS/AUTOMATIC FAILURE for this question.
Sample Output
department_name
doctor count
5
5
5
Emergency Blood Alert: Finding AB- Donors
Problem Description
View Schema
It's 2 AM at City General Hospital, and the ER just received a critical case requiring AB-blood-one of the rarest blood types. The blood bank is running low, and Dr. Sarah needs to quickly identify potential patient donors who might help. As the hospital's database analyst, you've been urgently called to help. Write a SQL query to find the total count of patients in the system who have blood type 'AB-'. Every second counts - lives depend on this information!
▲ CRITICAL WARNING: Column names in your answer must EXACTLY match those shown in the sample output (including capitalization, spacing, and punctuation). ANY deviation in column naming will result in ZERO MARKS / AUTOMATIC FAILURE for this question
Sample Output
patient_count
5
The interview process consisted of 1 online assessment followed by 3 technical interview rounds. Each technical round focused on problem-solving, debugging, and SQL concepts. The total interview duration was around 1 hour.
Interview questions [1]
Question 1
Q: Debug an existing program that updates coordinates based on direction and distance, including boundary conditions (±1000 units).
Q: Find the sum of digits of a two-digit number.
: Write an SQL query to calculate the average NAV of mutual fund schemes between two given dates.
Q: Write an SQL query to fetch mutual fund schemes that are not yet closed.
Q: Find the total purchase amount per customer using SQL.
Q: Given a year, month, and number of months to subtract, calculate the resulting year and month considering year rollover.
I had 4 rounds of interviews, each round was more focussed on evaluating problem solving and SQL skills.
There were a few questions on past experience as well
took 10 days to complete the interview process.
Overall it was a quick and good experience
