WHO WE ARE

We build and run cold-email sending infrastructure as a product — Microsoft 365 and Google Workspace tenants, domains, DNS, mailboxes, and deliverability.

A customer orders 100 tenants and 10,000 mailboxes and expects them to appear, working.

We are a small, fully remote team with live customers and real revenue. You would be our senior engineering hire, working directly with the founder.

WHAT WE'RE LOOKING FOR

• A senior engineer who has run a production SaaS system, not only built features inside one

• Someone who has been the only backend engineer somewhere — the person called when it broke at night

• Strength in catching silent failures: an order marked complete before the work actually happened, while the dashboard looks healthy for two days. Queues, transactions, migrations.

• Comfortable owning the backend and shipping the Next.js admin and customer interfaces on top of it — roughly 70/30 backend to frontend

• Works fluently with AI tooling and reviews its output critically

REQUIREMENTS

• 4–6 years of backend experience,



with genuine ownership of a production system

• TypeScript and Node.js in depth — not JavaScript with type annotations

• PostgreSQL at depth — transactions, row locking, indexing, and migrating a schema under live traffic. Managed-database experience alone is not enough.

• Redis and BullMQ, or equivalent job queues — retries, idempotency, dead-letter handling, and what happens when the same job runs twice. Long-running workers rather than serverless; if your recent experience is primarily Lambda and API Gateway, it will not map cleanly to this stack.

• Production browser automation — Puppeteer, Playwright or Selenium against real third-party portals. Not scraping: authenticated, multi-step flows including MFA, which have to be idempotent and secure to re-run. This is core infrastructure for us, not a side concern — when it breaks, provisioning stops.

• Express (or NestJS — the concepts transfer)

• Next.js and React —

📌 Senior Full Stack Engineer (India)
🏢 Inbox Navigator
📍 India