Software Engineer Interview Checklist

A structured 8-week preparation system for software engineering interviews - covering algorithms, system design, behavioral questions, and negotiation, built around what actually gets candidates offers.

work, coding, productivity

by Morris

8-Week Study Plan Structure

Unstructured LeetCode grinding is the least efficient preparation path. A sequenced plan produces better results in less time.

  • Schedule dedicated study blocks of 2-3 hours per day, 5-6 days per week
  • Week 1-2: Arrays, strings, hashmaps, two pointers, sliding window
  • Week 3-4: Trees (binary trees, BSTs), recursion, and BFS/DFS
  • Week 5: Graphs (BFS/DFS on graphs, Union-Find), stacks, queues, and heaps
  • Week 6: Dynamic programming (1D and 2D), greedy algorithms
  • Week 7-8: Mixed practice, timed full interview simulations, and weak-area targeting
  • Track every problem you attempt in a log with: problem name, difficulty, topic, time, outcome, and the key insight

Data Structures and Algorithms

The specific topics and problem patterns that cover 80%+ of what appears in real interviews.

  • Master the two-pointer and sliding window patterns completely
  • Implement a hashmap-based solution for every 'two sum' variant problem type
  • Practice binary search until you can write the exact loop structure from memory in under 60 seconds
  • Solve the Blind 75 problem list and track completion
  • Understand Big-O time and space complexity for every solution you write

System Design Preparation

System design differentiates candidates at mid-level and above. For senior roles, it is often the deciding round.

  • Study the core building blocks of scalable systems
  • Practice a structured framework for answering system design questions
  • Study 5-8 classic system design problems in depth
  • Practice drawing system diagrams quickly and clearly during mock interviews

Behavioral Questions with STAR Framework

Behavioral rounds are eliminators, not differentiators. Failing one ends the process. Prepare these as seriously as algorithms.

  • Prepare 6-8 STAR stories that cover the most common behavioral themes
  • Write each STAR story in a document with all four components explicitly filled in
  • Practice each behavioral answer out loud until it takes 90-120 seconds without notes
  • Prepare answers to Amazon Leadership Principles if interviewing at Amazon or Amazon-influenced companies

Coding Environment Setup

Pick one language and make it the tool you never have to think about during an interview.

  • Choose one primary interview language and use it for all practice
  • Memorize your language's standard library for interview-relevant operations
  • Practice in a plain text environment, not just an IDE
  • Learn to test your own code with examples before the interviewer does

Mock Interview Practice

Solving problems alone is practice. Solving them while talking to a person under time pressure is interview preparation.

  • Complete at least 10 mock interviews before your first real interview
  • After every mock interview, write a detailed self-debrief within 1 hour
  • Record one mock interview and watch it back once

Company-Specific Research and Preparation

Generic preparation gets you through screening. Company-specific preparation gets you the offer.

  • Research the company's tech stack and build familiarity with their core technologies
  • Read the company's engineering blog for the 6 months before your interview
  • Look up interview experiences for your specific role at this company on Glassdoor and Blind
  • Find a current or former employee at the company to do a mock interview or give you inside information

During-Interview Communication Habits

Strong communication during the interview is as important as strong coding. Interviewers assess both simultaneously.

  • Always spend 2-5 minutes clarifying the problem before writing any code
  • Narrate your thought process out loud as you code
  • When stuck, say what you know before saying you are stuck
  • Proactively identify the complexity of your solution and suggest optimizations

Negotiating the Offer

The offer is not final until you countered. Most candidates leave 5-20% on the table by not negotiating.

  • Research total compensation benchmarks before the offer arrives
  • Do not give a number first - defer until you have the offer
  • Counter the base salary and sign-on bonus, not just the base
  • Always negotiate in writing (email) after the verbal conversation
  • Use competing offers as leverage - ethically and accurately

Post-Interview Follow-up

What you do after the interview affects both the outcome and your next opportunity with the company.

  • Send a thank-you email to your recruiter within 24 hours
  • Write a problem debrief after each technical round while it is fresh
  • Follow up with the recruiter if you have not heard back within the stated timeline
  • If rejected, request feedback and ask about the appropriate time to re-apply
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