FinTech Platform
Digital & Physical Gold and Silver Investment System
FinTech · Backend Architecture
Backend architecture, API development, integrations, frontend investment flows
Private production project
Overview
A production-grade investment platform where users buy, sell, gift and subscribe to digital and physical gold and silver against live market rates. Trushil designed and implemented the core[...]
The challenge
Money movement and live commodity pricing leave no room for drift. Rates change constantly, payments arrive asynchronously through webhooks, recurring investments must allocate at the corre[...]
Contribution
- Designed and implemented the core backend architecture of the platform supporting trading, subscriptions, gifting and fulfilment workflows.
- Developed and maintained production REST APIs and microservice-style endpoints covering KYC verification, wallet ledger transactions, recurring investment engines, logistics integrations an[...]
- Engineered a real-time pricing engine using WebSocket-based live rate synchronisation with dynamic Bank/MCX source switching across transaction processing and subscription allocation pipeli[...]
- Integrated Razorpay, Easebuzz and ICICI Orange including recurring billing, webhook orchestration and reconciliation workflows.
- Containerised backend services with Docker and managed image build, pull and deployment workflows for consistent environments.
- Built a custom Python freight calculator handling dynamic rate computation, weight slabs, insurance calculations and pincode-level serviceability.
- Contributed to frontend investment flows using Next.js and Redux for rate-synchronised, API-driven transaction experiences.
Architecture & workflow
How the system moves from input to outcome.
Core features
Digital & physical trading
Buy, sell and redeem flows priced against synchronised live rates.
Subscription investments
Recurring investment engine with rate-accurate allocation.
Gifting workflows
Transfer of holdings between users as part of the ledger model.
KYC verification
DigiLocker-backed verification wired into onboarding.
Wallet ledger
Transactional ledger entries underpinning every movement of value.
Freight calculator
Weight slabs, insurance and pincode-level serviceability for physical delivery.
RBAC CMS
Role-scoped administration modules for operations teams.
Containerised delivery
Docker image build, pull and deployment workflows.
Technical highlights
- WebSocket live-rate engine with dynamic Bank/MCX source switching.
- Recurring billing and webhook orchestration across three payment providers.
- Reconciliation workflows built for financial transaction reliability.
- Custom freight calculation module for logistics fulfilment.