Engagement: Contract, full-time, ~6 weeks (1–1.5 months), extension likely
The role
We've designed the product and built the front-end. We're looking for one senior full-stack engineer to build the rest and take SellThinker live in about six weeks — working AI-first with Claude Code and the most advanced Claude models.
This is a driver role, not a pair of hands. You'll own the build end to end, make the calls, and ship.
About SellThinker
SellThinker helps social-commerce sellers close more sales in Instagram DMs and WhatsApp. It reads live conversations, spots when a buyer is ready, and tells the seller the right next move — the seller stays in control and approves every action. The product design and marketing site are done; now we build the engine behind it.
What you'll do
- Build the backend that powers a live, real-time selling assistant.
- Connect it to the platforms sellers already use — Instagram, WhatsApp, payments, and their product catalogs.
- Put our AI to work reliably and cost-effectively inside real conversations.
- Help get us through the platform approvals needed to go live.
- Move fast, decide independently, and ship a working product in weeks.
Who we're looking for
- A senior full-stack engineer who has shipped real products to production and can own a build alone.
- You've built things that integrate with outside platforms — messaging apps, payment providers, third-party APIs — and know the messy parts aren't the code, they're the integrations and approvals.
- You've worked with AI in production and understand how to make it dependable and affordable, not just impressive in a demo.
- You drive AI coding tools like Claude Code — you architect and steer, not blindly paste.
- You're comfortable with ambiguity and speed — a spec, a few open questions, and a deadline is enough for you to run.
Big pluses
- You've shipped something on WhatsApp / Instagram / Meta's platform before.
- You've integrated payments (Stripe, Razorpay, or similar).
- You've been the early engineer on a 0→1 product.
Not the right fit if
- You're mainly a front-end or design engineer (that part's done).
- You've only worked where infrastructure, integrations, and approvals were someone else's job.
- You need a lot of structure and hand-holding to move.
How we work
- AI-first and fast. Claude Code and advanced Claude models are core to how we build — we expect a strong engineer plus these tools to outrun a traditional team.
- Small and direct. You work straight with the founders. Decisions in hours, not sprints
Pay: ₹35,000.00 - ₹45,000.00 per month
Benefits:
- Flexible schedule
- Paid time off
Application Question(s):
- Tell us about a product you shipped that connected to an outside platform (messaging, payments, etc.) — and your role on it. (If you have worked on this)
- How you use Claude Code or similar AI tools in your real work with these kind of projects
- Have you shipped anything on WhatsApp, Instagram, or Meta's platform? If yes, what and when?
Education:
- Secondary(10th Pass) (Preferred)
Experience:
- Relational DB (Postgres) modeling: 1 year (Preferred)
- Async processing: 1 year (Preferred)
- LLM in production: 1 year (Preferred)
- Auth & multi-tenancy: 1 year (Preferred)
Work Location: Remote
