Tips for Success in Technical Interviews

Here are the 11 most actionable tips I can give you on approaching coding problems in technical interviews after having interviewed 1000+ Software Engineers across Google, Paytm, Amazon & various startups (in the last 15+ years of my journey) Step 1: Start With Clarifying Questions | |__ ➝ Don’t rush into coding. |      Ask about edge cases, constraints, and input formats: |         – Can parameters be empty? |         – Are there duplicates? |         – Are inputs always lowercase? |         – What should I return if there’s no valid answer? |      These answers shape your approach and avoid rework. | v Step 2: Manual Walkthrough With Examples | |__ ➝ Use given test cases. |      Draw out the example, underline or highlight key words, and manually reduce the problem. |      This helps you: |         – Find optimal substructures (e.g., shortest valid substring) |         – Catch mistakes before coding |      If you can “see” the answer by hand, you can code it more confidently. | v Step 3: Start Naive, Think Out Loud | |__ ➝ Always share your brute-force approach. |      Describe it step-by-step: |         – Use nested loops to anchor possible start/end indices |         – Check validity at each step |         – Keep track of the best result (length, indices) |      This shows the interviewer you understand basics before optimizing. | v Step 4: Recognize Patterns Early | |__ ➝ Ask yourself: |         – Is there a window I can slide over the input? |         – Can I avoid redundant work using two pointers? |      If yes, transition to a sliding window approach. |      Don’t stick with brute-force if a better pattern fits. | v Step 5: Build the Right Data Structures | |__ ➝ Use hash maps, not just sets. |      When frequency or duplicates matter, always track counts, not just presence. |      E.g., if a substring must contain all required words with their counts, you need a map for both “target” and “current window.” | v Step 6: Dry Run Your Optimized Approach | |__ ➝ Before you code, walk through your window logic by hand: |         – Expand right pointer to include more words |         – Shrink left pointer to minimize window once all requirements are met |         – Update best answer (start, end, length) as you go |      *Keep track of when your window is valid and when it isn’t.* | v Step 7: Implement, Then Tighten the Loop | |__ ➝ When you start coding: |         – Set up all maps and pointers first |         – Incrementally update your window |         – Always check: Did you match all targets? Can you shrink further? |      Use variables like minLength, bestStart, bestEnd to track answers. | v Step 8: Check Edge Cases (Empty/No Solution) | |__ ➝ Always handle what to return if there’s no valid solution. |      Don’t forget: If your bestStart/bestEnd were never updated, return an empty string (or -1, depending on the problem). | v Continued in Comments ↓

📍One mistake I made in my early interviews was failing to present my projects clearly. I knew the work inside out, but I couldn’t explain it in a structured way — and that cost me opportunities. Over time, I realized that interviewers aren’t just looking for what you built, but how you communicate your impact. Here’s a framework that can help you explain any project with clarity: 🔹 Context / Background Start with a quick snapshot of the project. What was the situation? Why was the project important? Keep it concise, something you can explain in under a minute. 🔹 Problem You Tackled Highlight the exact challenge. What issue did you or your team face? Why was it worth solving? This sets the stage for your contribution. 🔹 Your Contribution Be specific about your role. Did you design, code, test, lead, or optimize? Talk about key tasks you handled, roadblocks you hit, and how you overcame them. 🔹 Solution Approach Walk through how you solved the problem. Break it down into steps so the interviewer can follow your thought process — from the initial idea to the final execution. 🔹 Tools & Tech Mention the technologies, frameworks, or methods you used. This shows your technical decision-making ability and how you apply the right tools for the job. 🔹 Results & Outcomes Quantify the impact if possible. Did you improve performance by 30%? Save the team hours of work each week? Secure positive client feedback? Numbers and concrete results make your contribution stand out. 🔹 Collaboration & Learning Close by talking about teamwork and personal growth. How did you coordinate with others? What new skills did you pick up? What would you approach differently if given another chance? ✅ Remember: An interview isn’t just about what you built — it’s about showing your ability to identify problems, craft solutions, and communicate them clearly. #InterviewTips #CareerAdvice #ProjectShowcase #SoftwareEngineering #InterviewPreparation #CommunicationSkills #TechCareers #ProblemSolving

Your first job search isn’t just about skills. It’s about positioning, clarity, and communication. I recently tweeted something that resonated with many: “You know DSA. You’ve built projects. You’ve done your part. Yet rejections still knock you down.” This happens more often than we talk about—especially to students from non-Tier 1 colleges or those pursuing degrees like BCA, MCA, or online programs. I’ve seen friends who were talented, hardworking, and technically sound, still struggle. Not because they lacked capability, but because they lacked direction in how to present it. Here are some practical tips that can help you break that wall: 1. Projects need storytelling, not just code Include case studies on your portfolio or GitHub READMEs. Explain: What problem you solved Why you chose a particular stack How you approached edge cases What tradeoffs you made 2. DSA matters, but it’s not everything If you're applying for product-based companies, practice platform-specific contests (like LeetCode Weekly, Codeforces). But also understand how to write clean, scalable code and explain your logic confidently. 3. Resume = First impression Use action-driven bullet points (led, built, optimized). Avoid generic lines like “Passionate about technology.” Keep it focused. Tailor your resume for each job role. 4. Practice thinking out loud Mock interviews aren’t just for feedback—they train you to speak your thought process. Platforms like Pramp, Interviewing.io, or even peers over Zoom can help a lot. 5. Build in public Share your learnings on LinkedIn or GitHub. It helps you get noticed, and it builds confidence. Document your journey—it’s proof of consistency. 6. Learn how to learn The tech stack will keep changing. What matters is how you approach debugging, searching for solutions, and building incrementally. Useful Resources: System Design Primer CS50 by Harvard (Free) Tech Interview Handbook Frontend Masters Bootcamps (Free courses) Final Thought: You may not have a BTech or a top-tier college tag, but that doesn’t define your ceiling. Learn how to communicate your work. Focus on clarity, not just hard work. And keep iterating on your process until opportunity finds you. Rooting for everyone navigating this phase. Follow Abhay Singh for more such reads.

🚩 Why Your Perfect CV and Portfolio Won’t Get You the Job….. You’ve created a solid portfolio. ✅ You’ve completed the boot camp. ✅ You’ve crafted the perfect CV. ✅ Everything’s in place. Yet, you keep facing rejections. Ever asked yourself, am I truly preparing for the interview? 📍All the technical skills and portfolio pieces in the world won’t matter if you don’t prepare for the interview. Interviews aren’t just about what you know, they’re about how you communicate what you know. 📌Here is the tip: 1. Practice Makes Perfect 📍 Yes, you know your core skills, but how well do you communicate them under pressure? If you aren’t practicing, it will show. Take time each week to practice, practice, practice. - Call up a friend and rehearse interview questions. - Better yet, record yourself. Watch how you answer questions. Are you clear? Concise? Confident? How’s your body language? Tone? 2. Master Technical & Behavioral Interviews 📍 It’s easy to focus only on technical questions, but behavioral interviews matter just as much. Employers want to know how you handle challenges, teamwork, and failure, and they want stories, not generic answers. - Prepare stories that showcase your problem-solving, leadership, and adaptability skills. Use the STAR method (Situation, Task, Action, Result) to structure your answers. 📍 - For technical interviews, research common data science challenges and take mock exams. Break down your thought process, and explain why you’re solving a problem a certain way, not just how. 3. Do Your Research 📍 Interviewers love it when candidates show that they’ve researched the company. Don’t walk into an interview with a generic answer. - Understand the company’s challenges, their values, and recent news. Tailor your answers to the company’s needs. - Talk about how your skills align with their mission. This is your chance to stand out from the rest. 4. Ask Thoughtful Questions 📍 Remember, an interview is a two-way street. When it’s your turn to ask questions, don’t settle for “safe” questions. - Ask about the company culture, growth opportunities, or recent challenges in their team. Show that you’re serious about where you invest your skills. - This also demonstrates your curiosity and engagement, which are traits every employer values. 5. Stay Calm Under Pressure 📍 Interviews can make you nervous, but that’s part of the test. Practice staying calm when you don’t know the answer. It’s okay to take a moment to think or ask clarifying questions. It shows maturity and critical thinking. - Pro tip: 📍 Breathe. Pause before answering tough questions. A well-thought-out answer is always better than rushing through it. ♻️ Repost so others can learn

I held 40+ interviews last year and hundreds throughout my career. Here's what I wish more candidates knew: → How you show up matters. I don’t care what you wear or what’s in your background—but I do care if I can see your face. You’d be surprised how many people join Zoom calls in dim to no lighting. Find a window, turn on a lamp, or use Zoom/Mac video settings. Being visible = being present. → Be succinct. This is a superpower. Can you answer a question without rambling? Strike a balance between not being so brief that it’s awkward and not going on a 10-minute monologue. It may take practice! Be self-aware and watch the time. If you catch yourself rambling, call it out if that feels authentic — “oops, that was a tangent! I get really excited talking about [x].” → Don’t “sell” yourself — show us who you are. I know, I know, technically, you are selling yourself. However, the best interviews happen when candidates relax and bring their real selves to the conversation. You’re not a walking resume. We’re hiring a human, not just a skill set. → Don’t be afraid to get a little personal. Within reason, of course. Interviews aren’t a showcase, it’s an opportunity for connection. If something about the company or role resonates with you on a personal level, share it. Or I love it when I ask people to tell me their story, and they start with something like “Oh I live in Omaha with my husband and cat, I got started in tech in ….” We can then bond over our love for cats for a moment and segue into the next topic! → Ditch the script. Reading from a script or reciting memorized lines is pretty obvious. I was guilty of this early in my career, but your interviewer can tell. If you need notes, use them sparingly. The more you practice and interview, the less reliant you’ll become. Aim to converse, not perform. → Ask (good) questions. At least half of candidates don’t ask questions or only ask one or two. This is WILD to me! This is your job search—take the time to make sure this is the right move for you. Prepare at least five thoughtful questions. And not just “what’s the culture like?” Think of things like: - What do the best people in this role have in common? - What’s something people may misunderstand about working here? - Who was someone you loved managing, and what made them great to manage? (if you’re talking to the hiring manager) What would you add? 

Winging it in a technical interview is career sabotage. You wouldn’t walk into a marathon without training. So why do so many engineers walk into technical interviews unprepared? Here’s the reality: Technical interviews aren’t just tests—they’re performances. It’s not just about what you know; it’s about showing how you think, communicate, and problem-solve under pressure. The difference between landing an offer and walking away empty-handed? Preparation. Here’s what top engineers do to crush their interviews: 1: Revisit the Fundamentals • Brush up on algorithms, data structures, and system design. Even senior roles demand a solid foundation. 2: Practice Like You Play • LeetCode, mock interviews, whiteboarding—train in the same environment you’ll compete in. 3: Refine Your Story • Your technical skills are critical, but hiring managers also want to know you. • Prepare a narrative that ties your experience to the company’s mission. • Use the STAR story framework for this 4: Communicate, Don’t Just Solve • Talk through your solutions. Hiring isn’t just about the right answer—it’s about how you approach the problem. Preparation isn’t optional; it’s mandatory in this type of job market. When you show up prepared, you don’t just pass the interview—you set yourself apart as someone they need on the team.

To prepare for technical interviews at FAANG (Google, Apple, Microsoft, Amazon, and Meta), here's strategy: To prepare for technical interviews, focus on solving coding problems regularly. 1. Practice Coding Every Day:   - Try solving at least one medium or two easy-level coding questions daily.   - Do it on your own without help, but if you're stuck for over an hour, look for hints or solutions.   - Make notes of what you missed while solving and revise them often. 2. Focus on Concepts:   - Spend time understanding the concepts behind each problem you solve.   - Revise your notes and practice problems regularly to strengthen your understanding. 3. System and Design Studies:   - Aim to prepare at least one system and one object-oriented design case study each week. 4. Stay Consistent:   - Consistency is key. Stick to your daily coding practice routine.   - Use the Pomodoro Technique: plan 25 minutes of focused preparation followed by a 5-minute break, and repeat. 5. Include Behavioral Interviews:   - Don't overlook behavioral interviews. Give them equal importance in your preparation. For effective use of LeetCode: 1. Quality Over Quantity:   - Focus on solving quality problems rather than just solving many.   - Follow a roadmap of quality problems, like the 100 Days to GAMAM plan. 2. Use Curated Lists:   - Solve LeetCode's curated list of top interview questions, including the top 100 liked questions. 3. Practice Weak Areas:   - Identify your weak areas and practice questions specifically in those topics.   - Sort problems by "Acceptance" after choosing a difficulty level for better chances of success. 4. Gradual Progression:   - If you're a beginner, start with easy-level problems and gradually move to medium and hard levels.   - Aim to solve a target number of problems at each level. 5. Utilize Resources:   - Check out multiple solutions to problems and understand their time and space complexities.   - Take notes on missed concepts and revise them regularly. 6. Challenge Yourself:   - Once you're comfortable with practice, try daily challenges and participate in contests.   - Track your progress and consistency using LeetCode's features, like session management and submission graphs. LeetCode Practice:   - Solve LeetCode problems daily for 1-2 hours.   - Focus on quality over quantity.   - Start with easy problems if you're a beginner.   - Practice topics where you feel weak.   - Check out multiple solutions for each problem.   - Aim for a balanced number of easy, medium, and hard problems. Problem Solving Techniques:   - Don't spend more than 45-60 minutes on a problem.   - If stuck, check hints or solutions, but try to understand them fully.   - Take notes on missed concepts and solutions.   - Revise problems frequently, following a schedule based on Ebbinghaus's Forgetting Curve. consistent practice, understanding concepts, and targeted preparation will help you ace your technical interviews! Follow Vikram Gaur #faang

The resume was strong. The coding round went fine. Then the interviewer asked why, and everything slowed down. Because interviews aren’t just about what you built… They’re about whether you can explain, reason, decide, and think like an engineer when the pressure hits. Here’s how to prepare the right way - not just for answers, but for understanding: 1. Know the Role Clearly Understand responsibilities, required skills, and success metrics. 2. Study the Job Description Deeply Decode the real expectations behind every requirement. 3. Strengthen Core Technical Fundamentals Revisit core concepts that drive engineering decisions. 4. Choose One Primary Tech Stack Become strong in one stack before branching out. 5. Improve Structured Problem-Solving Work through problems step-by-step with clear reasoning. 6. Practice Coding Consistently Build speed, confidence, and familiarity with patterns. 7. Focus on Conceptual Understanding Know how things work, and why. 8. Build Practical Projects Show applied skills and independent thinking. 9. Explain Your Projects Confidently Discuss architecture, trade-offs, and what you’d improve. 10. Learn System Design Fundamentals Understand scalability, bottlenecks, and reliability basics. 11. Prepare Common Interview Questions Reduce cognitive load by practicing structured answers. 12. Do Mock Interviews Regularly Train under pressure before the real thing. 13. Communicate Your Thoughts Clearly Good communication shows clear thinking. 14. Prepare Behavioral Stories Use real experiences to demonstrate ownership and growth. 15. Learn From Every Rejection Refine your approach after each attempt. [Explore more in the post] The candidates who stand out aren’t the ones who memorize answers, they’re the ones who understand their choices. If you can explain why you solved something a certain way, the interview becomes a conversation, not a test.

10 practical rules to follow to excel in technical interviews and stay confident throughout my journey as a software developer: 1. Think out loud: Share your reasoning as you solve the problem. It helps the interviewer see your thought process.  2. Start simple: Begin with a straightforward solution and build from there. Avoid overcomplicating things at the start.  3. Ask clarifying questions: If something is unclear, ask. This shows you care about fully understanding the problem.  4. Break it down: Divide the problem into smaller parts and tackle them step by step.  5. Catch mistakes early: Double-check your logic and assumptions as you code. It’s better to find errors now than later.  6. Ask for hints: If you’re stuck, ask. Interviewers appreciate when candidates engage with them for guidance.  7. Use test cases: Validate your solution with sample inputs to show it works as expected.  8. Write clean code: Use meaningful variable names and a clear structure. Readable code matters.  9. Stick to what you know: Code in the language you’re most comfortable with to avoid unnecessary mistakes.  10. Stay calm: If you’re confused, pause for a moment, breathe, and restart. A steady mind is key to solving problems.  At the end of the day, keep it simple and focus on solving the problem clearly and effectively.

Cracking the Coding Interview: The first round of most tech interviews is a coding challenge, and clearing it is crucial. Here’s a step-by-step guide to help you ace it: 1. Understand the Problem Rephrase the question to ensure clarity and note key requirements. 2. Ask About Edge Cases Clarify potential tricky inputs like empty arrays or negative numbers. 3. Discuss the Brute Force Solution Briefly mention it, but focus on optimizing. 4. Explain the Optimal Solution Discuss the time and space complexity of your solution. 5. Check if the Solution is Feasible Confirm with the interviewer if they’re happy with your approach. 6.Write Clear, Simple Code Use a language you’re comfortable with and keep the code clean. 7. Dry Run Your Code Step through the code to catch errors and edge cases. 8. Adapt as Needed Refactor if needed after the dry run, especially for edge cases. 9. Review Complexity Double-check the time/space complexity and ask if more tests are needed. 10. Seek Feedback Always ask for feedback on your approach. Pro Tip: Focus on Patterns, Not Problems Understanding problem-solving patterns (like sliding windows or dynamic programming) will help you solve a wide range of coding challenges. #CodingInterviewTips #TechInterviews #InterviewPrep