Senior Backend Engineer - Payments & Fintech (India, Chennai)

About the role

This is the most consequential backend role we are hiring this year. GoCharting runs a freemium subscription business across two payment gateways (Stripe and Razorpay), two legal entities (US and India), and multiple currencies — and the systems that move money, grant entitlements, and report revenue have grown organically to the point where they need to be rebuilt properly.

What you'll do

• Build the canonical billing & entitlement ledger — design and implement an append-only, journals-as-truth Postgres schema (orders, signed payments ledger
• Own the full subscription lifecycle in code — purchase, renewal, resubscription, upgrade/downgrade/switch, proration, trials, cancellation
• Build the gateway ingest pipeline — idempotent, replay-safe webhook handling for Stripe, Razorpay, and Apple notifications
• Handle the hard money paths — refunds, chargebacks/disputes, credits, and partial/zero-amount settlements
• Produce clean financial & entitlement data — the views that feed accounting close (revenue recognition, multi-entity GST/IGST and US tax, deferred revenue)

What you need

• 6–10 yrs of experience
• SQL
• TypeScript
• Go
• Reconciliation
• GST
• React
• Any graduate

Good to have

• AWS
• Data modelling
• PostgreSQL