Senior Front-End Software Engineer Interview Experience - United States
Process
I interviewed for a senior front end software engineer position. There were 3 coding heavy and 2 overall and technical, 1 hour, interviews. The interviewing process was very smooth and everyone I talked to was kind and professional.
Recruiting assistant was exceptional guiding and helping through the process. Since this was a front end position, most of the questions were involved around javascript and React. The questions were difficult but fair for the seniority level. No LeetCode and "reverse a binary tree" questions, the challenges were realistic,"everyday problems" that any good experienced developer would know.
Questions
Here are questions and problems on JavaScript and React.
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Interview Statistics
The following metrics were computed from 1 interview experience for the Illumio Senior Front-End Software Engineer role in United States.
Success Rate
Illumio's interview process for their Senior Front-End Software Engineer roles in the United States is incredibly easy as the vast majority of engineers get an offer after going through it.
Experience Rating
Candidates reported having very good feelings for Illumio's Senior Front-End Software Engineer interview process in United States.
Illumio Work Experiences
- 4.0Greate small company to work for, lots of growth opportunitiesSite Reliability Engineer • Former EmployeeSunnyvale, CaliforniaApril 25, 2025Pros: There are talented people, open to creative solutions, and good learning opportunities depending on your team.Cons: Lacks clear instructions/structure in some aspects, even though the company is 11 years old it still has some chaos of a startup and pays lower than similar companies within the same field
- 4.0Nice location but planning needs improvementSenior QA Engineer • Former EmployeeSunnyvale, CaliforniaJuly 5, 2026Pros: It is a nice location to work. There is a lot of daylight. There is reasonable food for free. Most people are positive.Cons: Planning is not great. There is a lot of zigzagging.
- 5.0GreatSoftware Developer • Current EmployeeFebruary 3, 2021Pros: There is a good work life balance and interesting work. I am optimistic about the future of the company, but its growth could be faster. The leadership is transparent.Cons: Your room to grow will be heavily based on which team you join. There was a big diversity and inclusion push which is important but the implementation was but a bit overbearing and was not executed well.
