A small team that does serious work.
We build websites, we secure applications, and we implement the systems businesses run on — led by two founders, delivered by an in-house team, from Tamil Nadu, India.
Built on a simple idea.
Quantis Sphere was founded by Subin Sunder Raj and Thejaswini Kishore. Subin comes from cybersecurity and infrastructure — pen-testing, server hardening, SIEM. Thejaswini comes from data science and machine learning, with a PhD in progress and published research.
We started the company on a simple idea: a business should get professional websites and real security from the same trustworthy team — without agency prices or agency games.
We're based in Kanyakumari, Tamil Nadu, India, we work US Eastern hours, and we've built and secured sites for businesses across the US. We're honest about our size — that's the point. When you hire us, you work with the founders, backed by an in-house team we personally train and review.
The two people behind every engagement.
Subin Sunder Raj
Cybersecurity and infrastructure engineer — web & API penetration testing, Linux and cloud hardening, and Wazuh SIEM. Top Rated on Upwork with a 100% Job Success Score.
Thejaswini Kishore
Data scientist and Direct PhD candidate in Computer Science. Leads data and ML engineering, with patent applications and Scopus-indexed publications in biomedical deep learning.
Four things we don't compromise on.
Say what's true
We don't claim certifications we don't hold or clients we don't have. If you need something we can't do, we'll point you to someone who can.
Security isn't an upsell
Every site we ship is hardened by default — because we're the same people who break into sites for a living.
Own what you buy
Your site, your data, your ERP instance — yours, not rented.
Fixed scope, fixed price
You know what you're paying and when, in writing, before we start.
Business should be useful beyond its clients.
We commit a share of our revenue to community support. We help a local women's home with provisions, essentials and educational supplies — and, just as importantly, our time: career conversations, encouragement, and showing up regularly.
As young founders, we didn't want to wait until we were big to start giving back. When you hire us, part of what you pay supports this work.
Let's build — or secure — something.
One line is enough to start. You get a written scope and a fixed price — and an honest answer if we're not the right people for it.