
Logo to launch,
every screen between
I'm Sahaj, a Senior Product Designer and founder. For ten years I have taken products from the logo and brand guidelines through every screen, into code and onto the app stores.

Nine setup steps turned into one guided Home, from sign-up to first sale
1D2C, built October 2026

A patient's vitals reach the hospital before the ambulance does
KodeBlueCase study coming soon
Visual Flutter app builder, 240,000+ users

Commerce platform, 1000+ brands

Truck parts found by vehicle number

Book verified pandits, 50+ cities listed

Fresh-cut vegetables and cook kits

Air pollution law and policy portal

Road safety for truck drivers

Electric cabs for women, driven by women

Paramedics and doctors track vitals

Social platform for artists and new talent

Health tracking for cancer patients

Network for students and teachers, 2016
Built end to end
I own the whole path on a product: logo, brand, flows, screens, prototype, code and launch. Founding two companies taught me that, and I bring it to every team I work with.
See it on one product↗







Ten years of building
I work as a Senior Product Designer with the team at First Matter, and I run Blup, where I hired and led a team of 20. Before that I co-founded rootsapp in 2016.
More about me↗How I work with AI
AI sits inside my design process and inside the products. Each of these runs on real work today.
Designs that are already code
I design in HTML with agents, render each screen at 1440 and 390, then build the Flutter version 1:1 against the mockup's own values.
Testing AI like a product
Ask AI runs against a live prompt set. At default temperature it gave 3 clean runs of 5. At 0.1 it gave 6 of 6, so I locked it there.
A record agents read first
30 topic files hold my decisions, pitfalls and fixes, so each agent session starts with the rules I set.
Video from a script
A code pipeline turns one script into voiced, subtitled walkthroughs. It made all 18 onboarding videos.
Questions
The short answers.
What do you do on a product?
All of it, in order: logo and brand guidelines, flows, screens, a working prototype, the build and the launch. I built every app on this page personally, from the first mark to the store listing.
Where do you work now?
I'm a Senior Product Designer with First Matter, a product design studio, and Founder and CEO of Blup (Blupx Private Limited), which also makes 1D2C.
Do you lead teams or design yourself?
Both. I hired, mentored and managed a team of 20, and I still design the product myself.
Where are you based?
New Delhi. I'm available to work remotely from India.
How can I get in touch?
Email sahaj9917730102@gmail.com, or find me on LinkedIn.