About the job
Full details, eligibility and the selection process are available on the company's careers page.
Quest Global
SQL Developer
Posted 1 week ago
- Experience
- Any experience
- Job type
- Full-time
- Work mode
- On-site
Interview prep · Software Engineer
How to prepare for this interview
Software engineering interviews test whether you can break a problem down, write correct code under time pressure and explain your thinking. Expect data structures and algorithms, core CS subjects and questions on the projects in your resume.
Typical selection process
-
1
Online assessment
Two or three coding problems on a platform like HackerRank, often with MCQs on CS fundamentals and aptitude.
-
2
Technical round 1
Data structures and algorithms on a shared editor or whiteboard. Think aloud.
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3
Technical round 2
Projects, OOP, DBMS, operating systems and networking. For experienced roles, basic system design.
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4
Managerial / HR
Behavioural questions, team fit and offer discussion.
Rounds vary between companies. Quest Global may combine or skip some of them.
Skills to brush up on
- One language in depth (Java, C++, Python or C#)
- Data structures and algorithms
- Object-oriented programming
- DBMS and SQL
- Operating system concepts
- Computer networks basics
- Git
- Debugging and testing
Likely interview questions
Open a question to see what the interviewer is looking for.
01 What is the difference between an array and a linked list? When would you choose each?
How to answer:
Arrays give O(1) index access and are cache friendly; linked lists give O(1) insert or delete at a known node. Pick based on the access pattern.
02 Explain the four pillars of OOP with an example.
How to answer:
Encapsulation, abstraction, inheritance and polymorphism. Use one running example such as a payment system with different payment methods.
03 How does a hash map work internally, and what happens on a collision?
How to answer:
Hash the key to a bucket index. Collisions are handled by chaining or open addressing. Mention load factor and resizing.
04 What is the difference between a process and a thread?
How to answer:
Processes have separate memory; threads share memory within a process. Threads are cheaper to create but need synchronisation.
05 What is a deadlock, and how can it be prevented?
How to answer:
Name the four Coffman conditions and explain that breaking any one prevents deadlock, for example by always acquiring locks in a fixed order.
06 What are database indexes and what is their downside?
How to answer:
Indexes speed up reads by avoiding full scans, but cost extra storage and slow down inserts and updates.
07 Find the first non-repeating character in a string.
How to answer:
Count characters with a hash map in one pass, then scan again for the first count of one. O(n) time.
08 Reverse a linked list iteratively and recursively.
How to answer:
Iterative: keep prev, current and next pointers. Recursive: reverse the rest, then point next.next back to the current node. Watch the base case.
09 What happens when you type a URL into a browser and press Enter?
How to answer:
DNS lookup, TCP and TLS handshake, HTTP request, server response, then parsing and rendering. Go as deep as the interviewer wants.
01 Your code works locally but fails in production. How do you debug it?
How to answer:
Check logs and error tracking, compare configuration and environment variables, try to reproduce with production-like data, and narrow down with recent changes.
02 How would you design a URL shortener?
How to answer:
Cover the API, generating unique short codes, the storage choice, redirects and caching popular links. Keep it simple, then scale when asked.
03 You receive a vague requirement from a product manager. What do you do before coding?
How to answer:
Ask clarifying questions, write down assumptions and edge cases, and confirm the expected output before you start.
01 Tell me about yourself.
How to answer:
Keep it under two minutes: who you are, what you have built or studied that fits this role, and why you applied here. Skip personal details unless asked.
02 Why do you want to join our company?
How to answer:
Mention something specific: a product they ship, the tech they use, or the kind of customers they serve. Generic praise ("good brand, good growth") sounds rehearsed.
03 What are your strengths and weaknesses?
How to answer:
Back each strength with a short example. For the weakness, pick a real one that does not block the role and say what you are doing about it.
04 Are you comfortable with the location, shift timings and work mode?
How to answer:
Answer honestly. If you have a constraint, say it now rather than after the offer, and mention any flexibility you do have.
05 Do you have any questions for us?
How to answer:
Always ask one or two: what the first 90 days look like, how the team is structured, or how performance is reviewed. Avoid asking only about leave and salary.
06 Walk me through your final year project.
How to answer:
Explain the problem, your exact contribution, the tech you chose and why, and one thing that went wrong and how you fixed it. Interviewers dig into this, so know every line you claim.
07 You have no work experience. Why should we hire you?
How to answer:
Point to proof of effort: projects, internships, certifications, open source or competitive coding. Show that you learn fast and can take feedback.
08 Are you willing to sign a service agreement or relocate?
How to answer:
Many campus and fresher roles include a bond or training period. Read the terms before the interview so you can answer clearly.
09 Where do you see yourself in three to five years?
How to answer:
Show ambition within the field: owning features, mentoring juniors, going deeper in a technology. Avoid saying you plan to leave for higher studies soon.
Resume tips for this role
- List two or three projects with the problem, your stack and a link to GitHub or a live demo.
- Put your strongest language and frameworks in a skills section near the top.
- Include coding profiles (LeetCode, CodeChef, HackerRank) only if your ratings are decent.
- Quantify impact: "reduced API response time by 40%" beats "worked on APIs".
Free resources to study
This guide is written by the JOB_SPOT_360 team from common interview patterns for this kind of role. It is not provided by Quest Global, and the actual questions may differ.
Frequently asked questions
Can freshers apply for the SQL Developer role at Quest Global?
Yes. The role accepts candidates with Any experience of experience, so freshers can apply.
What is the salary for this job?
Quest Global has not disclosed the salary. You can ask about it during the HR round.
Where is the job located? Is it remote?
This is an on-site role. Check the official listing for the office location.
What is the last date to apply?
No deadline is listed. Openings like this can close once enough applications come in, so apply early.
How do I apply?
Select "Apply on company site" on this page. It opens Quest Global's official careers page, where you submit your application. JOB_SPOT_360 does not collect applications and never charges a fee.