Google Apps Script Developer (Ecommerce Automation)

Devsatva LLP

[Ahmedabad] · Full-time · 1+ years experience

About us

Devsatva LLP is an AI-native data engineering and analytics consultancy. We build real-time data pipelines, agentic AI workflows, and MarTech automation for clients including Singapore Airlines, Unilever India, and Billabong High. We're a small, senior team — you'll own problems end to end.

The role

We're building Google Workspace–based inventory and order management tooling for sellers operating across Amazon, Walmart, and other marketplaces. Think: live inventory syncing across channels, order and settlement reconciliation, low-stock and overselling alerts, bulk listing updates — all driven from Sheets that operations teams can actually use day to day.

You'll be the person who makes those systems reliable. Marketplace APIs are rate-limited, inconsistent, and occasionally hostile; the job is to build around that so the warehouse team never sees a stale number.

What you'll do

• Build inventory sync engines in Apps Script that keep stock levels accurate across Amazon, Walmart, and other sales channels
• Integrate marketplace APIs — Amazon SP-API, Walmart Marketplace API, and others — handling auth, pagination, throttling, and retries
• Automate order ingestion, fulfilment status updates, returns, and settlement reconciliation into Sheets and BigQuery
• Build bulk listing and price update workflows, including feed submission and status polling
• Set up alerting for stockouts, overselling risk, failed feeds, and API errors — so problems surface before clients notice
• Design around Apps Script's execution limits: batching, time-driven triggers, resumable jobs, caching
• Work with our data engineers to graduate mature automations into the wider pipeline

What we're looking for

• 1+ years of hands-on Google Apps Script experience (share examples or a repo)
• Strong JavaScript fundamentals — ES6+, async patterns, clean modular code
• Real experience consuming REST APIs: OAuth 2.0, signed requests, pagination, rate limits, idempotency
• Deep Google Sheets knowledge — formulas, named ranges, data validation, and where it starts to break at scale
• Understanding of Apps Script quotas and execution limits, and how to design systems that survive them
• Git, and the habit of using it

Strongly preferred

• Prior work with Amazon SP-API, Walmart Marketplace API, Shopify, or similar ecommerce platforms
• Familiarity with ecommerce operations concepts: SKU mapping, FBA vs FBM, multi-warehouse stock, ASINs, feeds, buy box
• BigQuery or Looker Studio for reporting on top of the operational data

Nice to have

• clasp and a local development workflow
• Python for anything that outgrows Apps Script
• Google Cloud Platform exposure

Why Devsatva

• Direct client exposure from week one — no layers between you and the problem
• Systems that are genuinely load-bearing: if your sync breaks, someone oversells
• Room to grow past automation into data engineering and agentic AI work