Founder · Builder · Berlin
Hi, I'm Saurabh Kumar
From Kerala to Chandigarh to Berlin — I build end-to-end products, lead teams, and founding Vocaa, real-time human language practice for learners worldwide.
The journey
Kerala · Chandigarh · Berlin
Electrical engineering roots at CUSAT, a pivot into data and full stack, leading engineering at startups in India, then Berlin for an MSc in AI — while founding Vocaa to put real human conversation at the center of language learning.
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Years Experience
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Startups Built
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Vocaa — speak with humans, not bots.
One tap. A real person. Five minutes of voice practice. No scheduling theatre, no synthetic small talk — the fastest path to confident speaking for immigrants in Germany, English learners globally, and anyone who deserves real conversation.
- Quick Pronunciation Check — solo AI feedback when you want a fast diagnostic.
- Daily streaks, timed sessions, and infrastructure on Railway, Supabase, Upstash, Vercel.
<2s
Instant matching
human to human
5 min
Session length
focused practice
15+
Languages
and growing
Vocaa
Speak live
Tap to match — <2s
Session
05:00
Capabilities
From pixels to production clusters
I own the full loop: product instinct, mobile and web clients, services, data, and the DevOps glue that keeps it reliable.
Frontend
Mobile
Backend
DevOps
AI / ML
Full stack
On stage
20+ seminars across India
Universities, colleges, and schools — energizing students around technology, AI, and what it takes to build a bold career.
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Currently in Berlin
- Building Vocaa — real-time human language practice for the world.
- MSc Artificial Intelligence at BSBI.
- Open to collaboration, advisory, freelance builds, and speaking.
Let's build something unignorable
Product sprints, founding engineering, AI prototypes, or stage keynotes — if you are solving a hard problem with care, I want to hear it.
Start a conversation