Senior Software Engineer — AI & Backend | Pyrock AI

Senior Software Engineer — AI & Backend | Pyrock AI

Company: The Pyrockai LLP (Pyrock AI) Role: Senior Software Engineer — AI Systems & Backend Location: Fully remote (work from home),

anywhere in India Type: Full-time Compensation: ₹50,000/month + \[ESOP / performance bonus — optional, edit or delete\] + review at 6 months

About Pyrock AI

Pyrock AI runs construction sites through WhatsApp.

Our AI assistant, Mahi, gets added to a builder's existing site WhatsApp groups and takes over the paperwork nobody wants to do: auto-entry from PDF bills, voice notes in Hindi, Marathi, Gujarati and English, live inventory from bills plus consumption, and a 3-line daily safety summary from site cameras. The owner asks a question in the group and gets an answer back — no app, no dashboard, no training.

We are live with paying builders in Mumbai and Ahmedabad and onboarding more sites every month. The engineering team is small, which means your code goes to production quickly and you see its effect on real sites within days.

What you will work on

Build and maintain our WhatsApp Web bridge — the service that keeps a dedicated number logged in and live inside client site groups: session persistence, reconnection and QR re-auth handling, group event handling, media download, and message ordering under load. This is the layer everything else depends on, and keeping it stable is the single most important job on the team.

Build and maintain the Pyrock agent pipeline — message ingestion, routing, context handling, tool calling and reply generation

Work with Meta's WhatsApp Cloud API alongside the bridge: webhooks, templates, media handling, number provisioning

Build ingestion for messy real-world input — scanned PDF bills, WhatsApp voice notes across four languages, site photos

Write the guardrails that keep the system trustworthy: no hallucinated numbers, no dropped messages, graceful behaviour under load

Deploy and monitor per-client infrastructure (isolated VPS per client), with proper alerting

Contribute to our computer-vision module — PPE and helmet compliance, gate material in/out, idle detection from existing site IP cameras

Requirements

Must have:

4+ years of production TypeScript / Node.js — backend systems that real users depend on daily

Practical experience with WhatsApp automation libraries and session-based bridges (whatsapp-web.js, Baileys, Venom or similar) — you have kept a session alive in production, not just run a demo

Solid grasp of queues, webhooks, retries, idempotency and rate limits — systems that hold up when volume spikes

Hands-on work with LLM APIs and agent patterns: tool calling, structured outputs, context management, evaluation

Comfortable with Linux, VPS deployment, Docker and day-to-day DevOps without hand-holding

Ability to spot a fragile system and fix it before a client notices

Good to have:

Meta / WhatsApp Business Platform (Cloud API) experience — BSP setup, template approvals, group and media handling

Computer vision in production: RTSP / IP camera streams, object detection, running models on-prem

Speech-to-text or evaluation work in Indian languages

Experience at an early-stage startup or on a small product team

You will do well here if:

You can read Hindi, Marathi or Gujarati well enough to sanity-check what the model is doing

You are willing to occasionally visit a construction site to understand why a feature isn't working

You prefer owning a system properly over being one of thirty engineers on a large one

You work well remotely — clear written updates, responsive during IST hours, no chasing required

Why this role

The problem is genuinely hard and largely unsolved: unstructured multilingual input from people who will never open a dashboard, turned into reliable operational data. You will work across LLM agents, real-time messaging infrastructure and computer vision — a combination that is difficult to get exposure to at a larger company, where these sit in three separate teams.

We are a small, fully remote team with paying customers in a market — Indian construction — that is enormous and almost entirely untouched by software.

How to apply

Please send:

Your CV

One system you built and operated — what broke, how you found out, and what you changed. This matters to us more than anything else on your CV.

Links to code you can talk through line by line

Your current notice period and earliest start date

Send your CV to: support@pyrock.ai with the subject line "Senior Engineer — \[Your Name\]"

We reply to every application within 5 working days. Our process is a 30-minute call, one paid take-home based on a real Pyrock problem, and a final conversation with the founders. No unpaid multi-round marathons.