I applied online. The process took 4 weeks. I interviewed at ING (Amsterdam) in Feb 2015
Interview
Two technical interviews over Skype and one final onsite.
During the first phone interview - with a data scientist and a hiring manager - we went over previous work experience and discussed a specific data science problem at ING.
The conversation was mostly high-level without going into technical details.
Next, was a programming exercise.
This phase required some SQL knowledge (creating, populating and joining tables),
and familiarity with a ML package of your own choice to fit a model to data (eg R or Python with sk-learn).
The onsite (conducted by two managers and no data scientist) was more personal:
ambitions, how you work in a team setting, why you chose ING, why data science, ...
Interview questions [1]
Question 1
1) Time series analysis of traffic on their different servers to trigger anomaly alerts
2) Given transactions between ING clients represented in graph form, identify potentially wealthy clients
3) Personal development
Firstly it was a test. Couple of months later I've had a call with manager and later with direct product owner. It has taken 2-3 weeks for final answer and enrollment.
Interview questions [1]
Question 1
First question was about data and how you process it in models in a typical way.
I applied online. The process took 4 weeks. I interviewed at ING (Bucharest, Bucuresti)
Interview
The interview process was smooth and well-structured, with technical questions that gradually increased in difficulty. This approach made the discussion feel comfortable, engaging, and gave me the chance to showcase my skills step by step.
The process had several rounds. It comprised an initial online tech assessment (some multiple choice questions and a sql and python exercise), HR chat, personality interview, case study and one final chat.
The case study was a take-home assignment to be discussed in an hour interview.
Overall they were professional and kind.
Data Scientist applicants have rated the interview process at ING with 3 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 75% positive. To compare, the company-average is 60.8% positive. This is according to Glassdoor user ratings.
Candidates applying for Data Scientist roles take an average of 31 days to get hired, when considering 8 user submitted interviews for this role. To compare, the hiring process at ING overall takes an average of 22 days.
Common stages of the interview process at ING as a Data Scientist according to 8 Glassdoor interviews include:
One on one interview: 25%
Skills test: 25%
Background check: 17%
Phone interview: 17%
Group panel interview: 8%
Personality test: 8%
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