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Weekday AI (YC W21)

Posted 12 Oct 2026

Platform Engineer, Full Stack (UI-heavy)

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Employment
Full time
Team
Weekday's Client via platform
Posted
12 Oct 2026

About the role

𝗧𝗵𝗶𝘀 𝗿𝗼𝗹𝗲 𝗶𝘀 𝗳𝗼𝗿 𝗼𝗻𝗲 𝗼𝗳 𝘁𝗵𝗲 𝗪𝗲𝗲𝗸𝗱𝗮𝘆'𝘀 𝗰𝗹𝗶𝗲𝗻𝘁𝘀

𝗦𝗮𝗹𝗮𝗿𝘆 𝗿𝗮𝗻𝗴𝗲: 𝗥𝘀 𝟯𝟰𝟬𝟬𝟬𝟬𝟬 - 𝗥𝘀 𝟴𝟱𝟬𝟬𝟬𝟬𝟬 (𝗶𝗲 𝗜𝗡𝗥 𝟯𝟰-𝟴𝟱 𝗟𝗣𝗔)

Experience: 3+ yrs

Location: Bengaluru, Karnataka, India, Chennai, Tamil Nadu, India (hybrid)

Job Type: Full-time

You'll build the product surfaces where customers model, build and run supply-chain decisions: complex, data-heavy workflows, editors, grids and app-building experiences. Your instinct shows in the UI, but your ownership doesn't stop at the browser: you'll shape the API and data contract behind each surface and own it in production. It's a senior role, with level set by what you demonstrate.

Requirements

What you'll own

  • Data-heavy product surfaces end to end, from contract and UI to release and iteration
  • Frontend architecture: component boundaries, state and data fetching, performance, accessibility
  • Shared patterns and components, built with design and product, that make the next surface faster to ship
  • The service side: APIs, data contracts, permissions and failure handling across layers, plus testing, observability and release safety

What we're looking for

  • Strong React and TypeScript/JavaScript fundamentals, below the framework layer
  • Complex user-facing products you personally shipped and ran in production
  • Credible backend ownership; Node.js/TypeScript helps, equivalent depth is fine
  • Product thinking: you frame the user problem before choosing an implementation
  • Startup experience, a hands-on ownership style and clear communication

Good to have

Micro-frontends, monorepos or shared component systems; developer tools, data products or workflow builders; SQL, multi-tenant SaaS and observability-heavy systems.

Location

Bengaluru or Chennai, hybrid.

Must-have skills

ReactJS, Javascript, Typescript

Good-to-have skills

Design Systems, micro-frontends, Monorepo

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