Hello! 👋
RSS FeedI am KhaiziNam – a developer passionate about technology and sharing knowledge. This blog is where I record my practical experiences in programming, DevOps, and the daily life of a Vietnamese developer.
Bilingual content: Vietnamese – English. Vietnamese is default, with a 🇬🇧 English toggle button at the top of each translated post.
Featured
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Session vs JWT: The Complete Theory and Most Common Interview Questions Every Junior Developer Must Know
Nearly 100% of backend interviews include questions about authentication — and the most classic question is still: "How do you distinguish Session from JWT, and when do you use each?" It sounds familiar, but many Juniors answer it wrong or only half-right.
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Phỏng Vấn Junior Outsource: Từ AI Workflow, Dependency Injection Đến Bài Toán Redis Chặn Concurrent Edit
Bạn chuẩn bị phỏng vấn vị trí Junior tại công ty outsource nhưng không biết họ thực sự hỏi gì sau câu "em tự giới thiệu đi"? Nếu chỉ ôn thuần lý thuyết OOP hay cú pháp Laravel, bạn có thể bị bất ngờ hoàn toàn khi gặp các câu hỏi về AI workflow, Dependency Injection
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My Junior Intern Backend Node.js TypeScript Interview - What They Asked and How I Answered
Today I want to share an interview I will never forget - my very first Junior Intern Backend Node.js TypeScript interview. Not because I nailed it, but because I blanked out at least three times. If you are preparing for a similar role, this post will save you a good amount of painful self-reflection. I will walk through every question, break down the correct answers, and share perspectives that m
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Programmer's Nightmare: Losing All Google Indexing in 1 Night Over a Single Chat Widget Code Line!
Did your website suddenly vanish from Google for no apparent reason? Discover this real-life case study of how a chat widget snippet blocked Googlebot and learn the ultimate fix. Read now!
Recent Posts
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IT Fresher & Junior Salary 2026: PHP, Node.js, React, Flutter - Real Market Data
Real salary benchmarks for IT freshers and junior developers in Vietnam in 2026, broken down by tech stack - so you know exactly what number to quote in interviews, or whether you're being underpaid right now.
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IT Salary Levels in Ho Chi Minh City and Hanoi (2025 - 2026 Overview)
The IT industry in Vietnam continues to maintain a higher salary range compared to many other industries, especially in Ho Chi Minh City and Hanoi. These two cities are currently the country’s largest technology recruitment hubs, attracting outsourcing companies, product-based firms, fintech businesses, AI startups, and international tech corporations.
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Salary Negotiation for Fresh IT Graduates: Stop Leaving Money on the Table
Salary negotiation for IT freshers is the process of discussing and adjusting your compensation after receiving a job offer — a step that most new graduates skip entirely because they believe "freshers have no bargaining power." The reality is the opposite: nearly every company builds a negotiation buffer into their offers even for entry-level candidates, and not negotiating means you're leaving m
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Junior Developer Portfolio: What to Include to Get Interview Calls
A junior developer portfolio is the collection of real projects, skills, and professional information you present so employers can evaluate your abilities — substituting for the work experience section of your CV that's currently empty. For freshers and junior developers, a portfolio isn't something that's "nice to have" — it's the only evidence you can offer to prove you can actually build things
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How to Write a Junior Developer Cover Letter With No Experience
Learn how to write a junior developer cover letter with no experience, including practical templates, real examples, common mistakes, and tips to pass the CV screening round.
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I Failed My IT Job Interview — Here's What I Changed to Get Hired
Getting rejected from an IT job interview is something almost every fresher and junior developer goes through at least once — usually more. That first rejection can make you question your abilities, but in the vast majority of cases, interview failures have specific, identifiable, fixable causes that can be addressed in a matter of weeks if you know where to look.