Built with Next.js · React Flow · shadcn/ui · Zustand
I’m Karthik, a product design engineer and I ship products
I’m an IC designer at Trainwell (Series A • B2C), and on the side I’m building the Zeno iOS app. Carnegie Mellon alum, designing products since 2020.I’m an IC designer at Trainwell, where I led design for our partnership with Peloton. On the side I tinker with agents and design AI-native interfaces. Carnegie Mellon alum, designing products since 2020.
Recent Works
Some B2B AI experiments I’ve been hacking together: agentic workflow builder, voice agents and agentic crm.
Projects
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Showing 8 projects
Voice Notes
38% adoptionWe shipped voice notes in Trainwell’s chat, so clients and their trainers can send each other quick voice messages.
Built with Remotion · Figma Weave
Brand exploration
Logo concept for a personal AI assistant startup.
Built with iOS · HealthKit · ScreenTime API
Built with Remotion · Figma Weave
Orbs
Brand exploration for a startup building cloud laptops for coding agents.
Peloton Partnership
+29% revenueWe shipped a white-labelled app with Peloton from scratch. I led the design, including the branding.
Built with Tailwind v4 · CSS variables
Built with Remotion
Agent glyphs
Glyphs for different agents, designed for an AI workforce startup.
Viewsights
AI interviewer that runs user research conversations and then analyzes them for you.
Built with ElevenLabs · Claude API · Supabase · RAG
Kora
Customer support agent that points at the buttons to guide users through your product.
Built with React · Claude API · Tailwind CSS · Motion
Kora: GitHubAgentic CRM
A CRM prototype where you ask an agent what to work on and it pulls from your records and tools.
Built with shadcn/ui · TanStack Table
Agentic CRM: View liveWorkout Feedback
A way for users to tell their trainer how each workout felt, so the trainer could tailor the next ones to their progress and needs.
Built with +14% engagement · User Research · Cross-Platform
Exercise Swaps
Clients can swap out an exercise mid-workout if it hurts or just doesn’t work for them, so the workout stays on track and trainers save time.
Built with Saved $46k/mo · Interaction Design · Prototyping
Hypelink Missions
Creators can launch Hypelink missions that get their fans to share a post with their own networks, so it reaches a lot more people.
Built with User Research · Prototyping
Hypelink Missions: Read case studyInteractive Fan Challenges
Creators can launch personalised challenges to interact closely with their super fans and reward them for participating.
Built with Interaction Design · Customer Discovery
Interactive Fan Challenges: Read case study
My stack
Tools & Software
ABOUT ME
Hello
👋 I’m Karthik Sivacharan
I enjoy breaking messy problems into smaller chunks, and I started designing products pretty early. I’ve worked across startups, VC and larger orgs, and I learn best by making things. Coffee, sunsets, driving and sports are my kind of things :)