View All num of num See all Photos Illumina www.illumina.com Engaged Employer Overview Reviews Salaries Interviews Jobs Photos Benefits 172 Reviews 354 Salaries 99 Interviews 346 Jobs Follow Add Review or Salary Follow Add Review or Salary 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.