Back-End Mentors

Santosh Yadav

Senior Software Engineer at Uber

Over 11 years, I've built scalable products used by millions - leading initiatives, conducting technical interviews, and mentoring 1,000+ engineers preparing for product-based roles. I've been through 150+ interviews across frontend and full-stack loops. I know what top companies evaluate beyond coding: architecture choices, trade-offs, communication, and engineering judgment. Today, I'm also building AI solutions and AI agent workflows — and I bring that same first-principles mindset into mentorship: clarity over shortcuts, systems over memorization. What you can expect: • Personalized roadmap — Frontend, Backend, or Full Stack • System Design sessions (LLD + HLD) with real-world trade-offs • DSA & mock interviews with actionable feedback • Resume & LinkedIn review for product-company hiring • Structured prep plan + curated learning resources • Guidance on moving from service-based to product-based companies My goal isn't just to help you clear interviews — it's to help you build strong engineering fundamentals and long-term career confidence. Targeting MAANG+, high-growth startups, or top product companies? I'll help you prepare with a focused, practical approach.

Arvind Kumar

Staff Engineer

Staff Software Engineer with 13+ years of experience building scalable systems using Java, Spring Boot, and modern distributed architectures. Passionate about system design, real-world engineering challenges, and continuously learning new technologies. I enjoy sharing practical insights through articles, videos, and discussions to help developers grow in their engineering journey.

Parminder Poonian

Senior Software Engineer

Senior SWE @ Uber | Ex-Google, Microsoft, Amazon Started from a Tier 3 college and now have 7+ years of experience building large-scale systems, leading high-impact projects, and mentoring engineers across all career stages. My experience spans Backend Development, Machine Learning, and Frontend Development. I've conducted 100+ interviews across Google, Amazon, and Microsoft, led projects ranging from quarterly initiatives to multi-year roadmaps, and worked on everything from deep systems (including compiler design) to ML feedback loops. **What you can expect:** * A personalized plan tailored to your goals—whether you have an interview coming up, are preparing for a job switch, or want long-term career guidance. * Deep dives into your past experience to help you tell stronger, more impactful stories. * Learn how interviewers evaluate candidates and understand the interview process from the interviewer's perspective. * Actionable resume reviews with practical feedback to maximize interview callbacks. * Honest, detailed feedback after mock interviews, along with clear areas to improve.

Pawan Kumar Soni

Senior Software Engineer at Uber

I am a Frontend Engineer with 7 years of experience architecture-ing and building scalable web and mobile applications at leading technology companies. My core stack includes React, React Native, JavaScript, TypeScript, and GraphQL, alongside an active focus on building AI-powered applications, LLMs, and agentic workflows. Beyond building systems, I have sat on both sides of the interview table. Having conducted numerous official interviews and rigorously mastered the loops of top-tier tech companies, I specialize in preparing engineers for the exact formats that break most candidates: System Design (HLD & LLD): Designing resilient, scalable client-side architectures. Machine Coding: Writing clean, modular, and extensible code under tight time constraints. JS Problem Solving: Deep dives into core JavaScript, closures, event loops, and custom polyfills. How I Can Help You Win Your Next Interview Knowing the tech is only half the battle; managing the clock is the other. The biggest mistake candidates make is letting a great signal spill over past the 60-minute mark. I will help you master the meta-game of interviewing: Time Management & Pacing: Exact breakdowns of how many minutes to spend on gathering requirements, high-level design, deep dives, and bottlenecks so you never run out of time. Communication Strategy: Exactly what to say, how to articulate your trade-offs, and when to pause for interviewer feedback. Actionable Mock Interviews: Real-world scenarios designed to simulate high-pressure loops, followed by brutal, constructive feedback. Let’s map out your preparation strategy and turn your technical gaps into strengths.

Aashish Gupta

Senior Software Engineer

I am a Software Engineer at Uber and have over 10 years of total working experience in Backend Development for highly scalable distributed systems. I love learning new things and am all about trying out new stuff, and have worked on Java, Spring Boot, Go lang, Angular, etc. I have mentored and guided 1000+ working professionals, now working in elite organisations.

Aditya Jamwal

Software Engineer at MS

Software Engineer at Microsoft. Interviewed at Amazon, Cisco, Adobe, Blinkit and got my resume shortlisted in the current era, at many other PBCs. I’ve tackled challenges across various technical domains, including software development, data engineering, and web. I can help • Reviewing your resume. • Brainstorming tech roadmaps for ML/AI or projects. • Conducting mock interviews to crack product-based companies. • Providing guidance you need for your career. • Any doubts related to DSA, ML-AI, system design!