View All num of num See all Photos Illumina www.illumina.com Engaged Employer Overview Reviews Salaries Interviews Jobs Photos Benefits 176 Reviews 360 Salaries 109 Interviews 360 Jobs Follow Add Interview Follow Add Interview Interview Question Product Development Engineer Interview San Diego, CA Illumina None were really difficult - all in line with plastics manufacturing for volume products. Probably the most difficult was to describe a DOE that I've done previously. I have not done very complicated DOE before - just simple ones. Interviews were professional and the questions were reasonable. I thought I did very well in the interview and handled all questions well - getting rejected was a surprise. Tags: See more , See less 8 Answer Add Tags Answer Interviews > Product Development Engineer > Illumina Add Answers or Comments To comment on this, Sign In or Sign Up.