I applied online. The process took 5 days. I interviewed at GammaStack (Bengaluru) in Nov 2024
Interview
1 technical intro round: asked questions from various things mentioned in CV
1 machine coding round:
1 HR round
The interviewer was on time, polite, and professional.
HR round was average. Salary negotiations are tough.
Interview questions [1]
Question 1
Asked to design a database schema of an online casino platform.
one question from Fibonacci series
Questions from range, partitions in DBMS
It means the review process goes step by step — first to L1 (initial reviewer), then to L2 (senior reviewer), and finally to HR for the final verification or approval before completion.
First round 4 coding questions
Easy to medium based on string and array
We were given 1 hour 15 minutes to solve them on online coding platform and we were able to run test cases
Round 2 Technical interview
Round 3 HR
I applied online. I interviewed at GammaStack (Bengaluru) in Mar 2025
Interview
Technical Interview – Round 1
Focus: Core Technical Skills
Duration: 45–60 minutes
In this round, interviewers evaluate your fundamental technical knowledge
Coding
Algorithms and data structures
API development
Database queries
Language-specific questions
Technical Interview – Round 2
Focus: Advanced Concepts and Practical Scenarios
Duration: 60–75 minutes
This round typically dives deeper into:
System design or architecture (for experienced roles
Debugging or optimization scenarios
Role-specific challenges
Understanding of development lifecycle, tools, and best practice.
Interview questions [1]
Question 1
1. Core concepts of nodejs and javascript.
2. DSA question.
3. System design question.
4. Database design question
