Giving this review to get more access. Applied online got an email from hiring manager. About a month later, I had an online interview with the hiring manager and department head
I applied through college or university. I interviewed at Ecolab (Bengaluru) in Feb 2026
Interview
Assessment-Interview-HR. Coding round was also part of it, which was moderate to difficult and also lots of networking and OS concepts. Then followed by a tech and HR interview. The level was moderate to difficult.
Interview questions [1]
Question 1
Basic progamming knowledge and deep project knowledge
the interview process was fast. i got an interview scheduled a day after i applied and then i was asked to visit the office for an orientation the next day.
Discussion with the HR VP. Questions about my skills, general knowledge on corporate finance and audit inside the company. Meeting was well scheduled and questions on point. Highly recommend it.
Intern applicants have rated the interview process at Ecolab with 2.9 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 79% positive. To compare, the company-average is 69.3% positive. This is according to Glassdoor user ratings.
Candidates applying for Intern roles take an average of 33 days to get hired, when considering 14 user submitted interviews for this role. To compare, the hiring process at Ecolab overall takes an average of 32 days.
Common stages of the interview process at Ecolab as a Intern according to 14 Glassdoor interviews include:
One on one interview: 33%
Skills test: 20%
Phone interview: 13%
Personality test: 7%
Drug test: 7%
Group panel interview: 7%
Presentation: 7%
Background check: 7%
Here are the most commonly searched roles for interview reports -