First talk with in house recruiter, then sent a code challenge. Code challenge was clear and fun, with the opportunity to learn something new. I stopped there because I took another offer.
I applied online. The process took 4 weeks. I interviewed at Crossbeam in Sept 2025
Interview
Je suis arrivé au dernier entretien (j'ai même reçu une invitation à venir au bureau pour passer ce dernier). J'ai reçu un refus 2 jours après.
"Hello X,
I want to sincerely thank you for the time, effort, and commitment you dedicated throughout our recruitment process. We truly appreciate the energy you invested, especially as you progressed through almost all the stages.
After careful consideration, we have decided to move forward with another candidate whose profile more closely aligns with the requirements of the role.
Please know that this decision was not easy, and we are very grateful for the opportunity to get to know you better.
We encourage you to apply for other roles at Crossbeam that interest you and we wish you the best of luck in your job search and future career pursuits.
Best,"
Interview questions [1]
Question 1
# An 'expression' is defined as a collection of terms where every term within it is either:
# - A variable (e.g. A, B, C)
# - A boolean operator (AND or OR)
# - A nested expression (i.e. another collection of terms)
# Write a function that when given an expression written in infix notation, e.g.:
# [A AND [B OR C]]
# Returns the same expression but instead written in prefix notation, e.g.:
# [AND A [OR B C]]
# Note: Parsing and tokenizing expressions is not a part of the task.
# You can expect the input value will be in a language-friendly formatted collection, e.g.:
# ["A", "AND", ["B", "OR", "C"]]
"
I applied online. I interviewed at Crossbeam (Philadelphia, PA) in Aug 2021
Interview
Screening/Intro, short take-home, 3 hours of remote interviews. The intro includes helpful information on the company, structure, funding, history and mission. Take-home assignment is language agnostic. You can take as much time as you need.
