Dr Gaurav S.

I build production software for trading and finance: AI-driven systems, full-stack SaaS platforms, and the Pine Script tools traders run every day. Since 2021 I have been the founder and sole architect of DESLARGE, a live multi-user trading platform for Indian options, futures, equities and commodities. I designed and wrote it end to end, and I run it in production: - Real-time market data over WebSockets, with tick recording every 5 seconds - A trade engine that places orders at user-defined levels, with averaging, pyramiding, trailing stops and hedged positions - Broker API integration, order reconciliation and restart-safe recovery - Multi-tenant isolation, subscriptions and billing, role-based access - TypeScript, Node.js, Fastify, React, PostgreSQL, Redis, deployed on AWS with Nginx and PM2 AI AND AGENTIC SYSTEMS - LLM integration in live products: structured prompts, strict JSON output contracts, token budgets, refusal and truncation handling, cost tracking - Multi-agent workflows for research, code review and verification - Model Context Protocol (MCP) servers that give AI assistants safe, read-only access to data - Machine-learning research pipelines: feature engineering, purged walk-forward validation, gradient-boosted models, ONNX export PINE SCRIPT (since 2019) 100+ clients and 250+ projects across Upwork and direct channels, for traders in the US, UK, Germany, Switzerland, Italy, Spain, Japan, China and Australia. Indicators, strategies, alerts, multi-timeframe logic, and conversions from other platforms. Every client review on this profile is rated 5 stars. WHAT YOU CAN EXPECT - Clear scope and honest estimates before work starts - Clean, documented code you own - Testing on real data, not just a demo - Direct communication in English or Hindi I am self-taught: Microsoft Certified in C++ at school, teaching programming by class 10, and building ever since. I also hold NISM Series VIII (Equity Derivatives) and NISM Mutual Fund Distributor certifications, so I understand the markets behind the code. Send me your idea, your strategy or your problem, and I will tell you plainly what it takes to build it well.