Ayush Mhetre

MerchantBots

Automated Amazon report ingestion

Two people used to spend a week, every week, manually uploading Amazon's reports. Replaced that with a pipeline that ingests them daily in a few hours - error-free. Celery handles scheduling, background jobs and retries, and a custom token-bucket rate limiter mirrors Amazon's own throttling.

MerchantBots

Versioned change-log engine

A centralized change-log reader and writer that stores any data in versioned form - turning a snapshot table into an auditable, event-sourced history. Used to record everything that changes on Amazon as events for auditing.

MerchantBots

Metrics engine + MCP server

Any metric over any Amazon facts table, defined by editing a config file instead of writing code. Exposed the same engine as an MCP server so agents can query the data directly.

MerchantBots

Client P&L portal & AM dashboard

A client-facing portal where sellers log in to see their profit and loss and compare it week-over-week and month-over-month across any range - and an internal dashboard on the metrics engine that lets account managers read sales and ad performance at a glance.

Superjoin

Design system & feature paywalls

Stood up a Turborepo monorepo and a custom Shadcn-based design system, migrating the app off Antd. Built a feature-level paywall that gates any feature in two lines, and an end-to-end pricing flow designed to make the value of upgrading obvious.

Feb 2026 - Present

MerchantBots

Remote

Founding Full-Stack Engineer

• Own data ingestion, the metrics layer, and the client- and internal-facing products end to end.
• Built the Amazon report ingestion pipeline on Celery - scheduling, background jobs and retries - with a custom token-bucket rate limiter mirroring Amazon's own throttling; ~2.3M API calls in a month at 99% success, replacing a recurring week of manual work by two people.
• Built a versioned change-log engine that turns any snapshot table into an auditable event stream in under 50 lines, plus an event-sourcing layer that records what changes on Amazon as events for auditing.
• Built a config-driven metrics engine that exposes any metric over any Amazon facts table, and shipped it as an MCP server so agents can query the data directly.
• Shipped the client-facing P&L portal (week-over-week and month-over-month comparisons over any range), an account-manager performance dashboard on the metrics engine, and an internal seller-invoicing tool that replaced a manual process with a one-click CSV export.

Jul 2025 - Jan 2026

Superjoin

Bangalore

Fullstack Developer

The product runs inside Google Sheets, Chrome and Excel - so a lot of normal web things don't apply.

• Set up the monorepo, UI package and design system; migrated the frontend off Antd.
• Built the paywall and pricing systems, Storybook + Chromatic docs, and Slack/PostHog feature analytics.
• Shipped 3–4 times a week in a 3-engineer team; reviewed PRs across frontend, backend and a Python service.

Jan 2025 - Jun 2025

Superjoin

Bangalore

Fullstack Developer Intern

• Built app.superjoin.ai for CTA entry-points and auth redirects after studying user behaviour in Mixpanel and PostHog.
• Proposed and rolled out Sentry and React Query across the stack.

Sep 2023 - Jul 2024

Devfolio

Frontend Web Dev Intern

• Worked on a product used by ~5M people with a team of five.
• Added real-time project judging, integrated a KYC flow, and built feature flows and pages.

Feb 2023 - May 2023

Salt.pe

Frontend Web Dev Intern

• Rebuilt the UI of the calculation tools and shipped new ones.
• Worked on an email-focused Chrome extension.

Sep 2022 - Dec 2022

PrishaPolicy

Frontend Web Dev Intern

• Built insurance-policy pages and made the site responsive across devices, on an Nx monorepo.