Production-grade Shopify subscription management platform with Razorpay payment integration.

• Built a multi-section admin dashboard covering subscriptions, billing cycles, customers, orders, plans, issue tracking, webhook logs, analytics, and sync workflows — all in a single embedded Shopify app.
• Integrated Shopify OAuth, a storefront subscription widget, a customer portal for self-service management, and end-to-end Razorpay Checkout with webhook signature verification.
• Designed idempotent order creation logic ensuring Shopify fulfilment is triggered only after confirmed Razorpay payment events — preventing duplicate orders across retries and webhook replays.

Custom operations dashboard and monitoring layer for automated crypto trading bot infrastructure.

• Organised trading-bot visibility around live strategy status, per-trade review, structured log output, and operator action controls — replacing raw terminal access with a structured interface.
• Built with a risk-first product philosophy: dry-run validation gates, diagnostics dashboards, and manual override controls before any live strategy is enabled.
• Designed for continuous operational monitoring, giving operators clear signal on bot health, strategy performance, and any anomalies requiring intervention.

3D printing product line with 247 published designs — cake toppers, celebration pieces, decorative prints, and custom orders.

• Published 247 original designs on Cults3D under the dknprints profile — including personalised cake toppers, anniversary pieces, birthday designs, keychains, and decorative wall art.
• Manages the full design-to-delivery pipeline: CAD modelling, STL export and repair, slicer optimisation, print production, quality review, and customer fulfilment.
• Accepts custom 3D printed product commissions, prototype support, and print-ready STL file preparation for clients with their own hardware.

Attendance analytics desktop application for small businesses running generic fingerprint attendance hardware.

• Ingests multi-format TXT logs from any fingerprint attendance device, automatically handling UTF-16/UTF-8/Latin-1 encoding variations, duplicate punch records, and incomplete day entries.
• Comprehensive analytics suite covering daily, weekly, and monthly attendance trends; per-employee hours worked; late arrival detection against configurable office hours; and an interactive calendar heat-map view.
• Ships as a single Windows .exe built with PyInstaller — no Python installation or runtime dependencies required, enabling immediate deployment to non-technical HR managers and office administrators.

Fully autonomous NSE options trading system with ML-based signal filtering and Telegram remote control.

• Five autonomous intraday strategies — OI Spike Scalp, Opening Range Breakout, VWAP Reversion, 0DTE Expiry plays, and Gap Fill — each with time-eligibility windows, duplicate position guards, and per-strategy risk limits enforced before any order is placed.
• XGBoost ML model trained on 86+ engineered features (volatility regime, VWAP distance, RSI, MACD, session phase, ATR, Bollinger Bands) dynamically adjusts lot sizing or blocks trades that fall below confidence thresholds.
• Complete Telegram control centre — live P&L snapshots, open position monitoring, circuit breaker status, risk dashboard, daily EOD reports, and live config updates via /set commands with no redeployment required.