I applied online. The process took 2 months. I interviewed at Meta (Singapur) in Jun 2025
Interview
The interview process began with a recruiter call, which included a few basic telecom-related questions. This was followed by a 45-minute technical phone screen covering topics such as telecom, networking, operating systems, and SQL/coding.
After that, I proceeded to the full interview loop, which consisted of five rounds:
1. Technical Telecom Interview
2. Coding Interview
3. Analytical Interview
4. Cross-Functional Interview
5. Hiring Manager Interview
Interview questions [1]
Question 1
The telecom round focused on SMPP, SS7, and relevant 3GPP standards related to MSISDN and IMSI.
The coding interview included two medium-level LeetCode problems — Ocean View and a PWD (Print Working Directory)-style function.
The analytical round centered on troubleshooting approaches and problem-solving methodology.
The cross-functional interview (30 minutes) covered behavioral topics such as handling feedback, prioritization, and collaboration.
The hiring manager interview was engaging and enjoyable.
Although the recruiter mentioned that I performed strongly in four rounds and “okay” in the coding round, and that I was still being considered, I eventually received a rejection after a month of waiting.