@sirius93
Nandan Kumar
@sirius93
Software Engineer • Mentor • Tech Speaker
About
I am Nandan, And you probably know me as a "Software Engineer who "hacked" an Airline to retrieve his luggage".
I am a full-time Software Engineer, Tech Speaker, and mentor. I enjoy talking about Web Development, Machine Learning, Natural language Processing, Machine learning Accelerated Mobile Pages, Progressive Web Apps, Cybersecurity, Chatbots, etc.
My claim to fame was when I posted a series of tweets on Twitter about data privacy issues on an airline’s website and the tweet got viral for all the good reasons. The story was covered by all major media portals all around the world including BBC, Saudi Gazette, Times of India, Boing Boing, Lallantop etc. and I have been interviewed by some major radio channels and podcasts.
In my free time, I like to indulge myself in activities like Photography, Gardening, Snooker, or Boxing. I am a proud owner of many plants, I sometimes talk to them (mostly pep talks).
Available for
I am available for Mentoring, Freelance Consultation, and Tech Talks.
Recently published
HTML Pitfalls and Gotchas Every Developer Should Avoid
Sep 5, 2025 · 4 min read · HTML is easy, said every developer ever. HTML is deceptively simple. You open a tag, you close a tag, and something appears on screen. But beneath that simplicity lurk gotchas that can silently break your layout, wreck your SEO, or make your site loo...
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Front-End Developer Interviews: The Crucial Aspect of Accessibility
Aug 9, 2025 · 3 min read · Let me start with this: Accessibility is not a buzzword; it’s a crucial feature that every web application should have. It should not be mandated by the government, but rather it should be taken as the responsibility of every developer to make their ...
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How to Design Instagram: Front-End System Design
Aug 1, 2025 · 3 min read · Let me start by putting one thing forward: System design is not about writing a memorised answer on paper. It’s more about thinking, planning and strategising. Hence, there is no correct answer, but a correct Framework. Understanding and approaching ...
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Polyfills of JS Array Methods - Flat, Map, Filter & Reduce (Because Why Not?)
May 13, 2025 · 4 min read · Alright, confession time, I’ve been writing JavaScript for a while now, but there’s something oddly satisfying about going back to the basics. You know, like trying to bake your bread from scratch even though you live next to a bakery. That’s exactly...
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