Senior Engineer — Platform & API

Own the backend and infrastructure beneath an AI-powered front desk for small businesses: API architecture, auth and multi-tenancy, billing, telephony, and reliability. You'll write production code every day and manage nobody.

Where
India · Remote

Experience level
Senior · 5 to 7+ years

Full time
Individual contributor

Salary
upto 50 INR per month
ABOUT THIS ROLE

Why this role exists

SMB AI Hub was built extraordinarily quickly using AI-assisted development into a substantial, working product: an assistant that answers a business's phone, runs its chat, manages campaigns, and operates its public hub site.

Speed built the product. It doesn't replace the judgment that comes from operating production systems — responding to incidents, evolving complex databases, protecting tenant boundaries, designing APIs other systems depend on, and knowing what breaks once real customers arrive. That judgment is what this role brings.

Your job is not a blank page and not a rewrite. It is to understand what exists, challenge it where necessary,



independently verify and harden the foundations, and build the next stage of the platform on top of them.
The technical team is three people: the founder — who owns customer problems, priorities, and sequencing — and two senior engineers who own how those become reliable production software. Within the platform domain, you make the technical decisions.

RESPONSIBILITIES

What you'll own

Ownership is intentionally broad: if multiple product surfaces depend on it, it's yours.

• API & action platform — one well-designed capability model with multiple consumers: the versioned API, AI tool calling, and future first-party clients. You set and defend the standards: versioning, idempotency, pagination, error contracts, webhooks, backwards compatibility.

• Auth, authorization & multi-tenancy — the organization, role, and tenant-isolation model. An early mandate is an independent, adversarial review of the se

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