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Ionis Pharmaceuticals Interview Questions
& Process

Real candidates share what happened, how many rounds they had,
and how the experience turned out.

Based on 44 interview experiences · FREE TO READ

3.2 Rounds average
Average Typical difficulty
58.1% Positive experience

Which role are you interviewing for?

14 roles · 44 reports

Candidate interview experiences

First-hand accounts from people who interviewed at Ionis Pharmaceuticals.

Showing 4 of 44
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Ionis Pharmaceuticals

Assistant Director

Operations · a year ago

Director Easy Negative experience No offer 2 rounds
Interview process
Recruiter call Phone screen
Interview formats
Behavioral

I interviewed for a role here and had a good first chat with HR, then an interview with the hiring manager. The HR chat was good, but the hiring manager interview wasn't great. The manager seemed checked out, and I was surprised when they asked why I wanted to work for them. I said I liked the company's work. I was really interested in the job and company, but then I got ghosted. I sent a follow-up email two weeks later and again, nothing. I sent another email, still no response. I get that not everyone gets picked, but a simple email saying where things stood would've been nice. People put a lot of effort into interviews, sometimes taking time off work or juggling stuff to be ready. A quick reply or some feedback would've shown respect for that time. Being professional matters, especially when trying to get good people. I hope they get better at communicating with candidates going forward, it's a big part of a good experience.

Confirmed questions1 question
  • What makes you want to work for this specific hiring manager?
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Ionis Pharmaceuticals

IT Director

Operations · more than a year ago

Director Average Negative experience No offer 15 rounds
Interview process
Recruiter call Technical screen Onsite Background check Offer
Interview formats
Behavioral Technical Presentation

Over a period of 4 months (May to August), I went through a really long interview process for the IT – Director G&A BRP role at Ionis. It was about 15 hours in total, spread across 15 different interview rounds, and two of those were with PwC. After all that, I got a standard rejection email a month after the interviews finished, even after I asked for updates. To make things even worse, they re-posted the job soon after, and then HR told me the position was canceled. It was a terrible experience!

Confirmed questions1 question
  • Can you describe your approach to managing partnerships and the specific steps involved in that process?
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Ionis Pharmaceuticals

Quality Assurance Assistant Director

Operations

Director Average Negative experience No offer 10 rounds
Interview process
Recruiter call Technical screen Onsite Background check Offer
Interview formats
Behavioral Technical

This interview process was way too long, with 10 rounds, each lasting 45 minutes. They drilled down into every single detail on my resume, asking about my skills, knowledge, and decision-making for the full 45 minutes each time. It feels overly complicated if a company needs 10 people to decide. The recruiter said it went well and they liked me, but they needed someone with more experience, which they somehow missed during the resume screening and initial interviews. Chatting with the hiring manager and some interviewers was fine, but it was just draining.

Confirmed questions6 questions
  • Can you detail all aspects of your resume?
  • What do you know about CAPA?
  • What are your thoughts on Deviations?
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Ionis Pharmaceuticals

Project Coordinator

Operations

Entry Easy Positive experience Decline offer 3 rounds
Interview process
Recruiter call Onsite Offer
Interview formats
Behavioral Technical Presentation

The process was fast. I applied on their website and the next thing I knew, I was chatting with the hiring manager. Someone contacted me over the weekend and set up the interview time. Super well organized. Kudos to that. I know my schedule very detailed, names, titles and such of all panelists. The interview panels were good to great. I was unsure if I was addressing the questions correctly in many panels, but I communicated this concern with the hiring manager, clarified my experience and interest, etc. All up front. Next thing I knew I got an offer!

Confirmed questions5 questions
  • What attracts you to our company?
  • What is one word that describes you?
  • Describe a time you had to deal with a difficult user.

Ionis Pharmaceuticals Interview Questions

Quoted word for word from Ionis Pharmaceuticals interview reports.

Tell me about HPLC, including its technical aspects and how it functions.

Read reports

What different types of HPLC analyses have you performed?

Read report

Formats, difficulty and experience

Across all 44 Ionis Pharmaceuticals interview reports.

Interview formats

Behavioral 48.3%
Technical 25.8%
Presentation 16.9%
Group 4.5%
Other 3.4%

Interview difficulty

Easy 9.1%
Average 79.5%
Difficult 11.4%

Candidate experience

Positive 58.1%
Negative 25.6%
Neutral 16.3%

Reports by job function

Research 20
Operations 8
Other 4
Sales 3
Engineering 3
Analytics 2