Backend Engineer interview practice at Ninetynine Labs
25 questions · 45 minutes · ₹25
Practise for the Backend Engineer interview at Ninetynine Labs, built from the company's own job descriptions.
Take the Backend Engineer test
What it covers
- Data Structures & Algorithms
- Operating Systems
- Computer Networks
- REST APIs
Interview format
- Questions: 25 questions — 15 multiple choice, 4 predict-the-output, 4 short answer, 2 from your CV
- Time: 45 minutes, timed from the first question
- Difficulty: Intermediate
- Skill area: Backend
- Price: ₹25 a test
How Ninetynine Labs interviews
The engineering interviews likely focus on systems and fundamentals, particularly in embedded systems, firmware development, and hardware design. Candidates are expected to demonstrate knowledge of communication protocols, microcontroller programming, and hardware debugging.
Frequently asked questions
- How many questions are in the Backend Engineer test?
- 25 questions (15 multiple choice, 4 predict-the-output, 4 short answer, 2 from your CV), with 45 minutes to answer them.
- What does the Backend Engineer test cover?
- Data Structures & Algorithms, Operating Systems, Computer Networks, REST APIs.
- Is the Backend Engineer test free?
- It costs ₹25 a test, paid per test with no subscription. Prices in Indian rupees (INR).
- What level is the Backend Engineer test?
- Intermediate, in Backend.
- How does Ninetynine Labs interview?
- The engineering interviews likely focus on systems and fundamentals, particularly in embedded systems, firmware development, and hardware design. Candidates are expected to demonstrate knowledge of communication protocols, microcontroller programming, and hardware debugging.