Operation Code

In the last 15 years, I’ve interviewed at Google, Microsoft, Paytm, Amazon, and dozens of startups.? And no matter the company, the interview pattern rarely changes.? Here’s what to expect in 99% of product-based company interviews:? ?1. Data Structures & Algorithms (DSA)?? Time: 45-60 minutes? What happens:?? - Solve 1-2 DSA problems within the time limit.?? - Write optimal, bug-free code that actually runs.?? - Explain time & space complexity for every approach.?? - Be prepared to handle edge cases, one miss can cost you.? DSA is usually the first filter. If you fail here, you don’t move forward.? ?2. System Design / High-Level Design (HLD)? Time: 60-90 minutes? What happens:?? - You get an open-ended system design problem.?? - Explain the architecture, database modeling, and API contracts.?? - Think about scalability, performance, and fault tolerance.?? - No coding, just whiteboarding & deep technical discussions.? There’s no single correct answer, what matters is how you think and justify your design.? ?3. Low-Level Design (LLD)? Time: 60-90 minutes? What happens:?? - You get a generic feature to design - (like a parking lot system, ATM, or rate limiter).?? - Define classes, attributes, and interactions.?? - Follow SOLID principles and avoid redundant data.?? - Sometimes, you’ll need to write actual code based on the discussion.? Good design choices can make or break your interview.? ?4. Machine Coding Round (MC)? Time: 90-180 minutes? What happens:?? - Build a working solution for a given problem, this isn’t about theory anymore.?? - Write executable, maintainable code for at least one core functionality.?? - Follow best practices, clean code, SOLID, design patterns, error handling.?? - Your code should be flexible enough for modifications (they might ask you to extend functionality).? 5. Managerial Discussion?? Time: 45-60 minutes? What happens:?? - Deep dive into your past projects, expect follow-up questions.?? - How did you solve challenges? What was your impact??? - Situational questions (answered best with the STAR method).?? - You’re evaluated on ownership, leadership, and decision-making.? This round is not just about tech, it’s about how you work and think.? ?6. Cultural Fit Round?? Time: 30-45 minutes? What happens:?? - How well do you align with the company’s values & culture??? - Expect behavioral questions (e.g., “Tell me about a time you handled conflict”).?? - Be honest, don’t make up stories to fit the values.? You can clear every technical round and still get rejected here.?? ? Also, Some companies include:?? - Concurrency discussions (how to handle multi-threading & parallelism).?? - Pair programming (coding in real-time with an interviewer).?? - Take-home assignments (especially in startups).? But for most product-based companies, these six rounds are the standard.??

Laid off or job searching for months? You're not alone. And it’s not your fault. You’ve applied. You’ve followed up. You’ve heard… nothing. The system is broken. And now, mass government layoffs are making it worse. I’ve been hearing from: -Veterans -Military spouses -Public servants People who dedicated their lives to helping others Now left wondering what’s next. Here’s the good news: Opportunity still exists. Join our Hiring Fair ??? April 3 | 10:30 AM EST ?? 20+ companies actively hiring: ?? Amazon ?? GDIT ?? TEKsystems ?? ManTech ?? CACI ?? Maryland Live …and more. This is open to Military Spouses, Veterans, Transitioning Service Members, Reservists, National Guard, and Federal Employees? You only need one ‘yes.’ ?? Register here https://lnkd.in/ePcUsjzc If you’re an employer ready to step up— ?? DM me to join us.

Are you affected by cuts to the Veterans Health Administration, tired of waitlists to providers or concerned about access during active duty status? Coming up this Tuesday, March 25, 2025 at 7pm ET, we welcome Dr. Craig Beach & the clinical leads from Openmind Health to talk about building mental health resilience and how this affects your workforce resilience. Openmind Health is a Tricare, and Veterans Affairs approved and insured provider. https://lnkd.in/eUS-ZVMU

35 REAL entry-level SOC analyst roles requiring ZERO experience. NO cybersecurity experience required. Follow for more cybersecurity job openings. ??Please repost to help someone else and I will keep doing this. ?? Direct Link to apply in the comments section?? #entrylevel #careergrowth #jobsearch #cyberjobs #jobopportunities #careerdevelopment #careersuccess #jobfair #cybersecurity #cyber

At a time when #tech and policies veer towards the impersonal, I'll be speaking on the necessity to keep the humanity in our work, bias prevention and talking about the critical work at Operation Code. Join me in person or virtually at the NVIDIA #GTC coming up next week! Title:?Empowering Voices, Expanding Horizons: The Human Side of AI Session ID:?SE74554 Date:?March 20 @ 11am PST "Transforming the future of AI starts with empowering diverse communities. This session brings together leaders driving change through innovative partnerships with NVIDIA, breaking down barriers to AI education and careers. Explore how these collaborations open doors to underrepresented talent, foster inclusivity and reshape the AI ecosystem to reflect the voices and potential of all people. Discover the transformative power of community-driven efforts to expand opportunity, fuel innovation, and create a more equitable AI future." https://lnkd.in/exy-G9c4

Reposting this as my colleague and friend, Torsten Kablitz, is currently seeking a Principal Engineer for his team. If you are an experienced data engineer and would like to work on some of the most complex problems in healthcare tech, consider applying!

Hi folks! A second Lead Software Engineer role has opened up. Again, check the link for job description and requirements. Lead Software Engineer - Front end React: https://lnkd.in/gneAX89T #hiring #softwareengineering #jobs #fintech #reactjs #react

Looking for a great software job and love food? Check us out https://lnkd.in/gmnR7fAH

I am thrilled to announce we are hiring for an early-in-career Insider Risk Engineer on my team! This is an incredible opportunity to join a high-performing team and grow your career with one of the best companies on the planet. :)