ICON Data Scientist Interview Questions
& Process
Real candidates share what happened, how many rounds they had,
and how the experience turned out.
Based on 5 interview experiences · FREE TO READ
Candidate interview experiences
First-hand accounts from people who interviewed at ICON.
ICON
Data Scientist
Senior Easy Negative experience No offer 1 round
Interview process
Recruiter call Technical screen
Interview formats
Technical Behavioral
The hiring manager didn't really know data science and couldn't assess qualifications. It was a client-facing role for J&J, so they brought in three junior data scientists. They asked about LLMs, RAG, Git, and feelings on the math behind LLMs, plus casual inference. They seemed unsure of what they needed, and ended up saying they wanted someone with more R experience, even though R was just mentioned as a possibility in the job description. They were too lazy to give a real reason for rejection. If you're not junior or a recent grad, don't bother applying because they are too junior.
Confirmed questions1 question
- What are your thoughts on the underlying mathematics of LLMs?
ICON
Principal Data Scientist
Executive Easy Positive experience Accept offer 4 rounds
Interview process
Recruiter call Technical screen Onsite Background check Offer
Interview formats
Behavioral Technical Presentation
This is a standard interview process. You'll talk with the internal team and then the stakeholders. What matters most is how you do with the stakeholders because they are the ones you'll be working for. The interview starts with getting to know you and the company. They mostly want to see your past work and check if you're a good fit.
Confirmed questions3 questions
- Can you tell us about your past work relevant to this field?
- What do you know about our company?
- How do you think you'll fit in here?
ICON
Data Scientist
Entry Average Positive experience Accept offer 2 rounds
Interview process
Recruiter call Technical screen Offer
Interview formats
Behavioral Technical
I applied and the recruiter connected me with the team. The interview process had two steps. The team was great, and they clearly loved their work and the group. I got the first offer in under two weeks.
Confirmed questions1 question
- How did you get into data science?
ICON Data Scientist Interview Questions
Quoted word for word from ICON interview reports.
“Can you explain statistics, linear regression, and p-values?”
Read reports →“What are your thoughts on the underlying mathematics of LLMs?”
Read reports →“What are your thoughts on time series forecasting?”
Read reports →“How did you get into data science?”
Read reports →“What is your basic knowledge of SQL and SAS, and can you write some queries?”
Read report →“How do you think you'll fit in here?”
Read report →“What do you know about our company?”
Read report →“Can you tell us about your past work relevant to this field?”
Read report →Formats, difficulty and experience
Across all 5 ICON interview reports.