System design for freshers, the parts that matter.
Junior system design rounds are not about drawing every box. They test whether you know the building blocks and can reason about failure: retries, slow dependencies and traffic spikes.
Built with Nagendra Kumar, IIT Delhi graduate
· interviewed 300+ engineers
Readiness assessment
Know exactly where you stand in System Design & Scalability.
- Overall readiness score out of 100
- Skill-wise breakdown across 7 areas
- Your gaps, ranked by priority
- An action plan and simple explanations for every miss
₹49
28 questions · 30 min · instant report
What interviewers check
Four things decide this round.
Caching
What to cache, TTLs and invalidation.
Async work
Moving slow tasks to queues and workers.
Reliability
Idempotency, retries and duplicate events.
Scaling
Stateless servers, load balancing and rate limiting.
Try before you pay
One question.
See how you think.
This is the style of every question in the assessment: real situations, not trivia, with an explanation for each answer. The full test covers 28 questions across 7 skills.
Your homepage API reads the same top-10 product list 5,000 times a minute, and it changes once an hour. Best first step?
Read-heavy, rarely changing data is the textbook case for caching. A TTL (or invalidating on write) keeps it fresh while removing almost all database load.
· FreeMistakes that cost offers
- Jumping to microservices before stating requirements.
- Ignoring what happens when a request is retried.
- Doing slow work inside the request cycle.
How to practise
Learn the building blocks: load balancing, caching, queues, idempotency, rate limiting and stateless services.
- Design a URL shortener and a notification service end to end on paper.
- Add Redis caching (cache-aside) with invalidation to a project.
- Move a slow task into a background worker (Celery/RQ/arq).
Stop guessing what to study
Start free. Go further if you need to.
One-time prices. Add one-to-one guidance any time.
30-min test
Job Readiness Assessment
Free₹99one-time
One-time payment · Python / AI Backend Engineer
What you get
- Role-specific readiness assessment (28 questions, 30 min)
- Overall readiness score and skill-wise breakdown
- Strengths and skill gaps across 7 core areas
- Personalised assessment report with answer explanations
How it works
- 1 Unlock it at checkout
- 2 Take the 28-question test (30 min)
- 3 Get your report instantly
Best for: Candidates who want to know exactly where they stand.
Secure checkout · Full refund if not started
Test + 30-min session · Most chosen
Assessment + Personal Guidance
₹500₹599one-time
₹99 assessment + ₹500 for a 30-minute one-to-one session
What you get
- Everything in the ₹99 assessment
- One-to-one review of your assessment results
- Identify your highest-priority skill gaps
- Guidance on what to learn and practise next
- Personalised next-step action plan
How it works
- 1 Pay ₹599 securely
- 2 Take the test and get your report
- 3 Review it one-to-one on Google Meet
Best for: Candidates who want a clear improvement roadmap.
Mentoring is guidance to help you improve, not a job guarantee.
Secure checkout · Full refund if not started
60-min session
Personal Mentoring
₹999one-time
60-minute one-to-one session · No assessment required
What you get
- Deep-dive on your career and technical challenges
- Detailed review of your Python / backend skills and projects
- Interview preparation priorities and mock questions
- Written, personalised action plan after the session
How it works
- 1 Pay ₹999 securely
- 2 Pick a 60-minute slot
- 3 Meet on Google Meet, get a written plan
Best for: Candidates who already know what they need help with.
Mentoring is guidance to help you improve, not a job guarantee.
Secure checkout · Full refund if not started
Your mentor
Nagendra Kumar
IIT Delhi graduate · 10+ years
300+
engineers interviewed
50+
engineers hired
MeetInsights
GoMechanic
Delhivery
FAQ
Questions, answered.
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