Stream B — Code Mastery · Course B01

Code Comprehension & Debugging

AI generates code. But it can't debug it, explain it to your team, or take ownership when it breaks. This course makes you the developer who can — across any language, any codebase.

Duration11 Weeks
Projects6 Real Codebases
Tools10+ Dev Tools

Why Code Comprehension?

Karthik's Monday

His senior dev went on leave. A production bug came in on day two. The codebase was 80,000 lines and he'd written maybe 2,000 of them. B01 teaches you exactly what to do in that moment — systematically, not by guessing.

40%

of a developer's working time is spent reading and understanding code they didn't write — this course makes that time productive instead of terrifying.

Most Senior

engineers say debugging unfamiliar code is harder than writing new code — yet almost no training programme teaches it directly. This one does.

Top Employers

Flipkart, Swiggy, Meesho, Razorpay, Atlassian, startups.

Want the full programme details?

Download our comprehensive brochure (PDF)

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Learning Outcomes

By completing this programme, you will be able to:

  • Read and understand unfamiliar codebases — in any language — within minutes.
  • Trace execution paths, identify root causes, and fix bugs under production pressure.
  • Explain code clearly to teammates, in code reviews, and in technical interviews.
  • Write structured test suites that catch regressions before they reach production.
  • Debug AI-generated code adversarially — identify logic errors, edge cases, and hidden failures.
  • Handle real-world debugging scenarios: memory leaks, race conditions, and API failures.

Your Learning Roadmap

A week-by-week path from foundations to job-readiness.

Reading Code Like a Senior Engineer

Mental models for understanding unfamiliar codebases: structure, dependencies, flow.

Debugging Foundations

Systematic debugging process — isolate, hypothesise, test, verify.

Debugger Tools in Practice

Use VS Code debugger, Chrome DevTools, and pdb across Python and JavaScript.

Reading & Debugging AI-Generated Code

Spot logical errors, type mismatches, and hallucinated APIs in LLM output.

Git & Version Control for Debugging

Use git bisect, blame, and log to trace when and why bugs were introduced.

Testing & Test-Driven Debug

Write unit tests and use property-based testing to catch edge cases systematically.

Performance Bugs & Memory Leaks

Profile code, find bottlenecks, and diagnose memory issues in production.

Async, Concurrency & Race Conditions

Debug multi-threaded and async code — the hardest class of bugs.

Adversarial Testing of AI Code

Use Hypothesis and mutmut to stress-test and mutation-test AI-generated code.

Code Review & Communication

Give and receive structured code reviews that build team quality standards.

Capstone: Debug a Production Incident

Reproduce, diagnose, and fix a real production-grade bug in a 3,000-line codebase.

Skill Gain Forecast

Proficiency benchmarks based on cohort outcomes. These are measured at your Week 8 oral viva — not estimated from syllabus coverage.

Reading & Navigating Unfamiliar Code92%

Proficiency you'll reach by Week 8

Debugging Under Time Pressure88%

Proficiency you'll reach by Week 8

Stack Trace Analysis90%

Proficiency you'll reach by Week 8

Code Review Techniques85%

Proficiency you'll reach by Week 8

Root Cause Analysis87%

Proficiency you'll reach by Week 8

Explaining Code Decisions Verbally80%

Proficiency you'll reach by Week 8

Skills You Will Master

01

Code Reading

Mental models for unfamiliar codebases

02

Systematic Debugging

Root-cause analysis and isolation

03

Debugger Tools

VS Code, Chrome DevTools, pdb

04

Unit Testing

pytest, Jest, and test structure

05

Property-Based Testing

Hypothesis for adversarial test cases

06

Mutation Testing

mutmut for AI code verification

07

Git Forensics

bisect, blame, log for bug tracing

08

Performance Profiling

Memory and CPU bottleneck analysis

Tools Covered

Hands-on experience with the tools used by professionals.

V
VS Code Debugger
C
Chrome DevTools
P
Python pdb
G
Git (advanced)
p
pytest
H
Hypothesis
m
mutmut
c
cProfile
p
py-spy
J
Jest
E
ESLint
P
Postman

Job Roles You Can Target

  • Software Engineer (Mid–Senior)
  • Backend Developer
  • Quality Engineer
  • Code Reviewer
  • Tech Lead
  • Platform Engineer

Who Is This For?

🎓

Students & Graduates

Developers with 1+ years of coding experience in Python, JavaScript, or Java.

💼

Working Professionals

Engineers who regularly use AI tools to write code but struggle to verify or debug the output.

🔄

Career Changers

Freshers from CS backgrounds with strong fundamentals who want to be production-ready.

Talk to Our Team

Get guidance on curriculum, career outcomes, and learning support.

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Is This Course Right For You?

This course is deliberately specific. Here's who gets the most out of it — and who should look at another stream first.

Great fit

🐛Developer who writes code but struggles to debug it under pressure
🤖Engineer who copies AI-generated code without fully understanding it
📈Junior dev who wants to level up to mid-level credibly
😰Anyone who has panic-fixed bugs in production without knowing why it worked

Not the right fit

🎓Complete beginners to programming (no prior code experience)
🏗️Those wanting system design or architecture (→ B02)
📐Expecting theoretical CS curriculum without practical debugging

Code Comprehension & Debugging FAQs

Frequently Asked Questions

Primary examples use Python and JavaScript. Core debugging concepts apply to any language, and we provide exercises in Java and Go for comparison.

Neither — it is about understanding and debugging code, including AI-generated code. We use debuggers, testing frameworks, and forensic tools.

We work with codebases ranging from 200 to 3,000 lines — real-world scale, not toy examples.

We use Hypothesis (property-based testing) and mutmut (mutation testing) to find bugs in AI-generated code that normal testing would miss.

Yes — code reading and debugging questions are increasingly common in system-level and senior-role interviews.

Explore Other Courses

B01Live Cohort
B01
Code Comprehension & Debugging
Duration11 Weeks
LevelIntermediate to Advanced
FormatCohort-Based, Live
Projects6 Real Codebases
Tools10+ Dev Tools
AccessLifetime Recordings
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