Janu Lingeswaran Entrepreneur & product strategist
I'm the founder of FeatherFlow, a Cologne-based digital product studio focused on AI products. Since 2023, we've shipped 15+ AI, SaaS and mobile products across industries, working with clients in places including New York, London, Dubai, Washington DC, Switzerland, Berlin and Munich.
“Take a call with the founder, Janu. He’s incredibly sharp, hands-on, and a true pleasure to work with.”
Ben HubnerHead of Business Operations, 2WAY“Been working with Janu […] across various projects, and they’ve slotted into our team beautifully. Highly knowledgeable, their work is fantastic.”
Michael ChapmanCEO, Curaley“I very much recommend working with Janu if you are looking for a high degree of professionalism and rapid execution.”
Hugo Millington-DrakeCo-Founder, Trigify.io
FeatherFlowDigital product studio, AI focus
Effortless BacklinksService
BoilerplateHubDirectory
FortuneMar 2025
PeopleNov 2025
Own PaceOct 2026
Gerrid SmithSep 2026About me
I was born in Grevenbroich, Germany 
, and have Tamil தமிழ் roots in Sri Lanka.
I wrote my first line of code in 2007, when I was 11. That led me to study computer science at 
RWTH Aachen, and then to work in engineering, consulting and product management.
In 2023 I started 
FeatherFlow next to my full-time job. At the end of 2024 I went all in, and today it’s an AI product studio with a senior team. In 2025 I joined 
Effortless Backlinks as a co-founder.
I also teach software engineering, business and AI at the 
Master School, run meetups for Indie Founders Germany and am part of 
2hearts, a community for people with immigration backgrounds in tech.
We design and engineer AI products. One senior team, from first sketch to launch and beyond.
- AI-native SaaS
- Product strategy
- UX & product design
- Architecture & development
- Branding & launch
Trusted by
