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![A service-based average guy who used to look at people working at Big Tech and think…
“Man, cracking those companies must be so damn tough.”
I used to admire them from a distance.
The companies. The packages. The tags.
And somewhere in my head, I had convinced myself that maybe this wasn't for guys like me.
Then December 2025 happened.
0 posts. 0 followers.
Just one vision:
I’ll teach what I know.
I’ll keep learning.
I’ll break the service-based barrier.
And somehow, someday, I’ll crack a PBC.
February - 10K followers.
Studying, teaching, practicing DSA and System Design — day in, day out.
April - 100K.
May - I joined Oracle.
Finally, I had the “Big Tech” tag I once thought was so difficult to get.
But here's what makes me even more proud:
100K people were already following me before I had that tag.
So they weren't following a company name.
They were following the value.
September - 200K. ❤️
And to every service-based guy out there:
I know your struggles.
I know you're the guy with big dreams, sitting somewhere and wondering if you can really make it.
You can.
Keep learning.
Keep practicing.
Keep showing up.
Don't let your current company become the limit of your ambition.
Go for it, guys.
Trust me…
the journey is beautiful. ❤️
@concepts_by_shrayansh
@striver_79
You two guys have magical content. The reason i was able to do this is because of you guys.
200K - thank you for being a part of mine. 🙏
[software engineer, software developers, viral, dreams, product based Companies, service based companies, dhruvtechbytes] by @dhruvtechbytes](https://s7.imginn.com/793000354_17887546428614615_6196600154707526991_n.heic?t51.82787-15/793000354_17887546428614615_6196600154707526991_n.heic?stp=dst-jpg_e35_p1290x1290_tt6&_nc_cat=101&ig_cache_key=Mzk3ODA4Mjk3NTU5MjM1MDkyMw%3D%3D.3-ccb7-5&ccb=7-5&_nc_sid=58cdad&efg=eyJ2ZW5jb2RlX3RhZyI6IkNBUk9VU0VMX0lURU0ueHBpZHMuMTQ0MC5zZHIucmVndWxhcl9waG90by5DMyJ9&_nc_ohc=M1ITepRO5QYQ7kNvwFHts3c&_nc_oc=AdojdTeMNwtDWMzGcm6Fs85c2IeVx_tKD36LUPSb84-tuXdvvmja0a6mzhR4kRx-ArPMKlXH3SzekrcMraW-Vq7n&_nc_ad=z-m&_nc_cid=0&_nc_zt=23&_nc_ht=scontent-lga3-2.cdninstagram.com&_nc_gid=th3ot9rAY0dCXiAsF6KXDg&_nc_ss=7a22e&oh=00_AQPfYloiMmQZOX-DmNcsZ4yVpn4mnSP8kKY8hIF1mwuyEA&oe=6AC732C5)
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a month ago
Download ![If you think you’re streaming a live match on Hotstar… 👀
You’re wrong.
Comment PDF for the detailed architecture breakdown. 🚀
You’re actually super-fast downloading tiny encrypted video chunks every few seconds. ⚡📦
Live feed → Transcoder (multiple qualities) → Chunker (2–6 sec segments) → Encryption → CDN → Edge → Your phone.
When you hit Watch Now:
1️⃣ App fetches decryption key
2️⃣ App downloads encrypted chunks from nearest CDN
3️⃣ Player decrypts + plays instantly
That “live streaming” feeling?
It’s ultra-optimized chunk-based downloading happening so fast you don’t notice it.
Comment PDF for the detailed architecture breakdown. 🚀
#systemdesign #hotstar #cdn #engineers #developers
[tech, software engineer, system design, hotstar, cdn, engineering] by @dhruvtechbytes](https://s7.imginn.com/631572095_930939862706143_6912339585261445007_n.jpg?t51.71878-15/631572095_930939862706143_6912339585261445007_n.jpg?stp=dst-jpg_e15_p480x480_tt6&_nc_cat=105&ig_cache_key=MzgzMzEwNTg4NDEwNTU1NTkyMg%3D%3D.3-ccb7-5&ccb=7-5&_nc_sid=58cdad&efg=eyJ2ZW5jb2RlX3RhZyI6IkNMSVBTLnhwaWRzLjY0MC5zZHIudmlkZW9fZGVmYXVsdF9jb3Zlcl9mcmFtZS5DMiJ9&_nc_ohc=7yvvI_kgbvkQ7kNvwHwIEYs&_nc_oc=AdrFZSrWm89OKG0Q7bxoPfMIXZ8RSTawLeaOReElkBeYM8XDg6KGFXtqUZTeGi6-oUcY7Mv75nb_sw-dZi4jd2mn&_nc_ad=z-m&_nc_cid=0&_nc_zt=23&_nc_ht=scontent-lga3-2.cdninstagram.com&_nc_gid=th3ot9rAY0dCXiAsF6KXDg&_nc_ss=7a22e&oh=00_AQOa6s9qSSmspJw33gGkwkwclY50QuA-ID0cRIZqTF6Reg&oe=6AC70BBA)
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8 months ago
Download ![Every software engineer should, at least once in their career, dive deep into DSA and System Design.
Just give 6 months to yourself and i will apply referrals for you guys.
If you want resources, where to study dsa and system design from then comment "engineer"
#softwarengineering #SystemDesign #dsa #developers
[software engineer, software developers, engineering, tech, system design, dsa, interviews] by @dhruvtechbytes](https://s7.imginn.com/753170159_1566535294865020_8844933894305094798_n.jpg?t51.71878-15/753170159_1566535294865020_8844933894305094798_n.jpg?stp=dst-jpg_e15_p480x480_tt6&_nc_cat=106&ig_cache_key=Mzk0NzY4ODA4NDc2MDgyODExMA%3D%3D.3-ccb7-5&ccb=7-5&_nc_sid=58cdad&efg=eyJ2ZW5jb2RlX3RhZyI6IkNMSVBTLnhwaWRzLjY0MC5zZHIudmlkZW9fZGVmYXVsdF9jb3Zlcl9mcmFtZS5DMiJ9&_nc_ohc=7HfDU5bXt3oQ7kNvwGtaiZJ&_nc_oc=AdqUgRVBde7L2urlSO0TUB5MhWHzcJBQqKEuFfaWkGPHezXeHxCtHQ_XdNjN5GocJHaXKOktLlbP_oAABwqyRLZq&_nc_ad=z-m&_nc_cid=0&_nc_zt=23&_nc_ht=scontent-lga3-3.cdninstagram.com&_nc_gid=th3ot9rAY0dCXiAsF6KXDg&_nc_ss=7a22e&oh=00_AQPgSR5_SgLruKZUsnS8n0AfCqu1mS27wQbyJd6eArpKxg&oe=6AC71E82)
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2 months ago
Download ![1cr+ cracked with this HLD question.
Design Restaurant Onboarding System.
Join my live HLD Cohort 1.0 starting 10th Oct.
- 14+ Design Problems Live
- Mock Interviews
- 1:1 Sessions
And many more..
The link to the curriculum is in bio.
#softwarengineering #systemdesign #developers
[software engineer, software developers, engineering, tech, coding, backend, frontend, system design, live teaching, cohort, dhruvtechbytes, technology] by @dhruvtechbytes](https://s7.imginn.com/831439273_1714983522911642_2914623918865164633_n.jpg?t15.5256-10/831439273_1714983522911642_2914623918865164633_n.jpg?stp=dst-jpg_e15_p480x480_tt6&_nc_cat=111&ig_cache_key=Mzk5NzcxMjA3ODUxNzAyNjA2MQ%3D%3D.3-ccb7-5&ccb=7-5&_nc_sid=58cdad&efg=eyJ2ZW5jb2RlX3RhZyI6IkNMSVBTLnhwaWRzLjY0MC5zZHIudmlkZW9fZGVmYXVsdF9jb3Zlcl9mcmFtZS5DMiJ9&_nc_ohc=RBv9wALJaP0Q7kNvwFST_LF&_nc_oc=Adroi5VW_iApknt7aWOi-LyHwVYSEFg7JGqNhNSjtThOTU5Qn3FAFGkj-r3E9g2J1TupRI3VKEuOkQbFZ5cttEI_&_nc_ad=z-m&_nc_cid=0&_nc_zt=23&_nc_ht=scontent-lga3-1.cdninstagram.com&_nc_gid=th3ot9rAY0dCXiAsF6KXDg&_nc_ss=7a22e&oh=00_AQM-1FB1Y4I5lUqr_4JNVOZtUXZ3MfQ_Jag0vWv8RZ7zcg&oe=6AC72108)
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3 days ago
Download ![Join HLD Live Cohort 1.0 to learn 14+ System Design Problems from fundamentals to advanced level in 16 classes + 1 Bonus Week as this will be the founding batch.
Find the curriculum from the link in bio and enroll as seats are limited and filling fast.
Ever wondered how Uber finds nearby drivers so quickly?
The interesting part starts with geospatial indexing.
Uber’s H3 system divides the Earth into hierarchical hexagonal cells. 📍
When a driver shares their location:
→ Latitude & Longitude
→ Map location to an H3 cell
→ Store the driver against that cell
When you request a ride:
→ Your location is mapped to an H3 cell
→ Uber searches nearby cells for available drivers
→ Candidates are filtered & ranked
→ Ride offers are dispatched
→ Driver accepts → Ride confirmed
And if there aren’t enough nearby drivers, the search area can progressively expand to neighboring H3 rings.
The key idea?
Don’t search for drivers across the entire city. Search only the relevant geographic cells.
This is one of those simple-looking system design problems that involves Geospatial Indexing + Real-Time Location Tracking + Dispatch + Matching.
Save this for your System Design interview prep.
#SystemDesign #Uber #H3 #SoftwareEngineer #tech
[software engineer, software developers, engineering, tech, coding, backend, frontend, system design, live cohort, dhruvtechbytes] by @dhruvtechbytes](https://s7.imginn.com/829725850_1793994018601500_2714373085201268849_n.jpg?t51.71878-15/829725850_1793994018601500_2714373085201268849_n.jpg?stp=dst-jpg_e15_p480x480_tt6&_nc_cat=109&ig_cache_key=Mzk5NjIyMzY0NDk5OTQxNTkyNTI4ODc5NzUwOTE1NTU2MjY%3D.3-ccb7-5&ccb=7-5&_nc_sid=58cdad&efg=eyJ2ZW5jb2RlX3RhZyI6IkNMSVBTLnhwaWRzLjY0MC5zZHIudmlkZW9fbmZyYW1lX2NvdmVyX2ZyYW1lLkMyIn0%3D&_nc_ohc=xyOPO3ygCwwQ7kNvwHbkTcI&_nc_oc=AdraXgtyHgJGX934beei_LZC8dCdPkI2mCjMa0fm4uhJEx4IF-QdvtVl2bObn1ltEVF4AOn9fryudt-puu3SV1Vd&_nc_ad=z-m&_nc_cid=0&_nc_zt=23&_nc_ht=scontent-lga3-1.cdninstagram.com&_nc_gid=th3ot9rAY0dCXiAsF6KXDg&_nc_ss=7a22e&oh=00_AQMnt_tCHCIY1W7SaRjcn1Md_wDdcOK69OX1lsH2E7zDDw&oe=6AC7251D)
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Download ![Tinder Feed System Design ❤️🔥
How does Tinder find people near you at massive scale?
Lat/Long → S2 Cells → Elasticsearch → Filters → Ranking → Feed
In this reel, I break down how S2 Geometry + Hilbert Curve + Elasticsearch can power a location-based feed.
Save this for your next System Design interview
#SystemDesign #Tinder #elasticsearch #tech #softwareengineer
[software engineer, software developers, engineering, tech, coding, backend, system design, tinder, location database, s2 geometry library] by @dhruvtechbytes](https://s7.imginn.com/816987445_1765852348018185_3275179859395687613_n.jpg?t15.5256-10/816987445_1765852348018185_3275179859395687613_n.jpg?stp=dst-jpg_e15_p480x480_tt6&_nc_cat=102&ig_cache_key=Mzk4OTA4NTM2ODQ1NTk4OTI5Ng%3D%3D.3-ccb7-5&ccb=7-5&_nc_sid=58cdad&efg=eyJ2ZW5jb2RlX3RhZyI6IkNMSVBTLnhwaWRzLjY0MC5zZHIudmlkZW9fZGVmYXVsdF9jb3Zlcl9mcmFtZS5DMiJ9&_nc_ohc=u8B943sLiKkQ7kNvwEGzquI&_nc_oc=AdqcFUVI5_E2es1Y7iu15ElYkzR8ektQdg62u9dDHaOjMM1L8RJncuIocpG-rlOEA5Gt5KPUtD2vsumGwuRt8teV&_nc_ad=z-m&_nc_cid=0&_nc_zt=23&_nc_ht=scontent-lga3-3.cdninstagram.com&_nc_gid=th3ot9rAY0dCXiAsF6KXDg&_nc_ss=7a22e&oh=00_AQN4DedkSgrfDPmZFXbdyViMOSZ5s56c868S_MqleDKPWQ&oe=6AC7251C)
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