Red Balloon Security Software Engineer Interview Questions
& Process
Real candidates share what happened, how many rounds they had,
and how the experience turned out.
Based on 11 interview experiences · FREE TO READ
Candidate interview experiences
First-hand accounts from people who interviewed at Red Balloon Security.
Red Balloon Security
Software Engineer
Entry Difficult Negative experience No offer 2 rounds
Interview process
Take home Technical screen
Interview formats
Coding Technical
First, there was a quick challenge problem. Then, I was sent some hardware to work with for a second, more challenging problem. The challenges themselves were interesting. However, the communication with the company was terrible. I had to send multiple emails to get a response. They were 15 minutes late for a scheduled phone call and only called after I reminded them via email. My last email with my results from the second challenge has been unanswered for two weeks. I didn't fully complete the problem, but I documented my results in detail. They might have dismissed me because it wasn't finished, but I have no clue since they didn't reply. My experiences buying things on craigslist have been better.
Confirmed questions2 questions
- Tell me about the quick challenge problem you were given.
- Describe the more challenging problem you worked on, including the hardware aspect.
Red Balloon Security
Software Development Engineer
Mid Difficult Negative experience No offer 2 rounds
Interview process
Take home Background check
Interview formats
Coding Other
MY WORST EXPERIENCE EVER. I sent my CV via e-mail and got a challenge a week later, it had two parts and I had 7 days to submit. I deployed a fully functional code for challenge #1 and wrote an 8-page write-up. I also fully completed the puzzle challenge #2. Submitted everything within the time limit, including my motivation. No response, AT ALL. It really upset me that I spent ~50-60hrs and got NO response. I sent 10 follow-up emails, DM'd the job poster on Reddit, messaged them on LinkedIn, and even asked a co-worker for an update via LinkedIn. NO RESPONSE - EVER. I didn't even get an acknowledgement. While I was spending all this time, I was also studying for my Masters, preparing for OSCP, and working night shifts. Will I have this time back?!
Confirmed questions1 question
- The challenge included a code challenge and a puzzle.
Red Balloon Security
Senior Software Engineer
Senior Average Positive experience No offer 1 round
Interview process
Take home
Interview formats
Coding
You were sent a couple of take home challenges via email. One involved your resume and a challenge, the other was a programming challenge. The programming challenge took some time due to the design specification.
Confirmed questions1 question
- Complete the take-home assignments.
Red Balloon Security Software Engineer Interview Questions
Quoted word for word from Red Balloon Security interview reports.
“Can you decrypt the modified file?”
Read reports →“Could you write a server to verify checksums and digital signatures of UDP packets?”
Read reports →“Could you write a program to parse packets?”
Read reports →“Could you decrypt your PDF resume and identify the altered version?”
Read reports →“Could you decrypt a version of my resume that contained hidden code?”
Read report →“Describe the more challenging problem you worked on, including the hardware aspect.”
Read report →“Tell me about the quick challenge problem you were given.”
Read report →Formats, difficulty and experience
Across all 11 Red Balloon Security interview reports.