Arunkumar
About
- I'm Arunkumar, product designer who
crafts user experience, 
writes code, and 
ships tools. - 8 years of designing UX, the last 2 years building and shipping products in the AI and developer tools space. Background in computer science & engineering.
- When I'm not designing, I hang from an iron bar — calisthenics: pull-ups, push-ups and the occasional handstand.
Live tools
ConvertKitty
convertkitty.comA free archive converter for 38 formats — ZIP, RAR, 7Z, TAR and more. Conversions run in the browser with 7-Zip compiled to WebAssembly, so files stay on the device; the server is a fallback, used only with consent.
Prompt to Blade UI
2026Type a prompt, get a real screen in Razorpay's Blade design system — a schema, not a prompt, keeps every generated style on-system.
First Rank Pro
MarketplaceIn-canvas SEO analysis for Framer sites — instant page health score across titles, headings, alt text and keyword placement.
Greymemory
2026A self-hosted memory layer for AI agents that knows when facts change — around 80% on LongMemEval.
Reverse Engineer LinkedIn API
ToolTurns a messy, undocumented profile payload into clean structured JSON — and stays honest about gaps: 20 of 47 skills is reported as 20 of 47, not passed off as complete.
OpenFreeMap 3D
MarketplaceA free, keyless interactive 3D map component for Framer. Tilt, rotate and drop markers by pasting a Google Maps link.
UX Case Studies
SELECTED WORK · 2017 — 2026
Hike Developer Console
2017The tool internal teams used to build and publish mini apps inside the messenger — and the same console third-party companies used to publish theirs.
Tekion OpenAPI
2022The developer console that lets internal and third-party developers build services on top of Tekion's automotive platform APIs.
Prompt to Blade UI
2026Type a prompt, get a real screen in Razorpay's Blade design system — every style resolves through design-system tokens, so it can't go off-brand.
Applix Copilot & DMS
2024Two product films for a manufacturing AI platform that detects defects and stops them at the source. Storyboard and UX/UI design.
Greymemory
2026A self-hosted memory layer for AI agents. Built end to end including the eval harness — around 80% on LongMemEval.
Experience
Founding Product Designer · Applix
2024 — 2025Enterprise AI for manufacturing. Storyboarded and designed two product films — the Copilot and the Defect Management System — that turn a dense platform into a story an enterprise buyer can follow in minutes.
OpenAPI developer console · Tekion
2022 — 2024Designed the console end to end for a US automotive cloud platform — access and credentials, certification, partner administration, API health and support dashboards — for internal and third-party developers.
Developer Console · Hike Messenger
2017 — 2018First design role. Took siloed, competing release processes to one agreed way to publish mini apps inside a 50M-user messenger — version states, staged release and a design system.
Writing
ON LINKEDINAI Agents are just a while loop. I built one in 30 lines. No jargon. No bullshit.
A working AI agent in 30 lines — no frameworks, no magic. The ReAct pattern, tool execution, memory as a messages array — ending on a complete multi-turn agent that handles real tool calls.
How I got AI to turn a prompt into Razorpay's Blade UI — without it ever going off-brand
The structured-outputs technique behind Prompt to Blade UI — how a schema, not the prompt, is what keeps an LLM's output on-system.