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Technical Interview — Prep থেকে Offer

লেসন ৫০ / ৫০

Resume Tips ⭐

  • 1 page (senior 2 max)
  • Quantify impact (reduced latency 40%, $100K saved)
  • Action verbs (Built, Led, Optimized)
  • Tailor to JD (keyword match)
  • PDF, ATS-friendly (no images for text)
  • GitHub + LinkedIn + portfolio link
  • Tech stack section
  • No "References available on request"

Resume Format (STAR)

• Built real-time analytics dashboard using React + WebSocket,
  reducing page load from 3s to 400ms, serving 50K DAU.
  
Format: (Situation/Task) Action → Result + Metrics

Cover Letter

Skipped many companies। Use when: career change, senior role, dream company।

Interview Stages

  1. Resume screen
  2. Recruiter chat (30m) — culture, compensation
  3. Technical phone screen (45-60m) — 1 coding problem
  4. Take-home assignment (optional, 2-8h)
  5. Onsite loop (4-6 interviews):
    • 2 Coding (algorithm)
    • 1 System Design (senior)
    • 1 Behavioral
    • 1 Domain/deep dive
    • 1 Hiring manager
  6. Offer → Negotiation

Coding Interview Prep ⭐

Topics

  • Array, String
  • Hashmap, Set
  • Linked List, Stack, Queue
  • Tree (BST, traversal)
  • Graph (BFS, DFS)
  • Binary Search
  • Two Pointer, Sliding Window
  • Recursion, Backtracking
  • Dynamic Programming
  • Heap, Trie, Union-Find (advanced)

Resources

  • LeetCode (top 150 problems)
  • NeetCode roadmap (YouTube)
  • Cracking the Coding Interview
  • Elements of Programming Interviews
  • Mock interview — Pramp, interviewing.io

Coding Interview Framework

  1. Understand — repeat problem, ask edge cases
  2. Examples — work through 1-2 manually
  3. Approach — explain brute force first, then optimize
  4. Complexity — time/space Big-O
  5. Code — clean, named variables, modular
  6. Test — walk through with example
  7. Edge cases — empty, single, duplicate, overflow

System Design Interview ⭐

Framework

  1. Clarify scope (functional + NFR)
  2. Capacity estimate
  3. API design
  4. Data model
  5. High-level architecture
  6. Deep dive (interviewer picks component)
  7. Scale, bottleneck, trade-off

Common Questions

  • Design URL shortener, Twitter, Instagram
  • Design chat (WhatsApp)
  • Design ride-sharing (Uber)
  • Design rate limiter
  • Design distributed cache
  • Design search autocomplete
  • Design news feed
  • Design video streaming

Behavioral Interview — STAR Method ⭐

Situation — context
Task     — what needed to be done
Action   — what YOU did (not "we")
Result   — outcome (with metrics)

Example: "Tell me about a conflict"
S: Teammate disagreed on architecture choice
T: Needed to decide before sprint planning
A: I prepared comparison doc (pros/cons), proposed POC
   for both approaches, presented to team
R: Team chose approach B based on data; shipped 
   2 weeks faster, no regret decision

Common Behavioral Questions

  • Tell me about yourself (2-min pitch)
  • Why this company?
  • Strengths / weaknesses
  • Difficult teammate / conflict
  • Biggest failure and lesson
  • Proudest project
  • How you handle disagreement with manager
  • Ambiguous requirements
  • Missed deadline
  • Gave/received difficult feedback
  • Why leave current job

Prepare Stories Bank

5-7 strong stories covering: leadership, conflict, failure, technical depth, cross-team, customer impact।

Questions to Ask Interviewer ⭐

  • What does a typical day look like?
  • Current biggest technical challenge?
  • How is success measured for this role?
  • What's the onboarding like?
  • Team structure, remote policy?
  • Engineering culture (testing, code review, on-call)?
  • Growth opportunities?
  • Why did you join? What do you love?

❌ Salary, perks (save for recruiter/offer stage)।

Salary Negotiation ⭐

  1. Never give first number (say "competitive", "market rate")
  2. Research (levels.fyi, Glassdoor, Payscale)
  3. Evaluate total comp (base + bonus + equity + signing)
  4. Multiple offers = leverage
  5. Negotiate EVERYTHING (base, equity, signing, remote, start date)
  6. Get in writing
  7. Polite, professional, not aggressive
  8. They WILL increase (never hurt to ask)

Script

"Thank you for the offer! I am excited about the role.
 Based on my experience and market data, I was expecting
 base closer to X. Is there room to move?"

Compensation Components

  • Base salary
  • Sign-on bonus (1-time)
  • Annual bonus (% of base)
  • Stock (RSU/options, 4-year vest)
  • 401k match / PF
  • Health insurance
  • Remote stipend, learning budget

Red Flags to Watch

  • Rushed process, no time to think
  • Won't share salary range
  • High turnover on team
  • Bad reviews on Glassdoor
  • Interview process chaotic/rude
  • Refuse to put in writing
  • Bait-and-switch role

First 90 Days on New Job

  • 30 days: learn (code, team, product)
  • 60 days: contribute small PRs
  • 90 days: own feature/project
  • Build relationships (coffee chats)
  • Ask questions, don't over-promise
  • Document what you learn (next hire thanks)

Continuous Interview

Even happy-এ quarterly interview — market value track, negotiation leverage, skill sharp।

🎓 Congratulations!

এই ৫০ topic master করলে you are not just a coder — you are a Software Engineer. Keep learning, keep building, keep sharing!

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