[FOR HIRE] Full-Stack Developer (Java/ — 4+ Years — SaaS, Trading Systems & AI Automation | $20 hr

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Описание

Hey! I'm a full-stack engineer with 4+ years of professional experience, based in Indore, India. What I bring: Backend: Java (Spring Boot, Microservices), [link] REST APIs, GraphQL, WebSocket Frontend: React, Vue.js, responsive UI, real-time dashboards Databases: PostgreSQL, MySQL, MongoDB, ClickHouse, Cassandra, Redis, Prisma AI/Automation: Claude API, GPT integration, prompt engineering, AI-assisted dev workflows, Playwright for automated testing Cloud/DevOps: AWS (EC2, RDS, S3, Lambda), Docker, Kubernetes, CI/CD Recent work: Led two multi-tenant SaaS platforms end-to-end: a WhatsApp Business CRM (React Native, Express, MySQL, WhatsApp Cloud API) with lead routing, SLA tracking, and workforce management; and a real estate CRM integrating property portal APIs and Bitrix24 Built NSE algorithmic trading systems handling 10,000+ concurrent users at sub-100ms latency (Spring Boot, Esper CEP, PostgreSQL/ClickHouse/Cassandra) Built trading bots, backtesting engines, and real-time P&L dashboards (WebSocket, Redis, TradingView, Zerodha API integration) AI-assisted e-commerce and business website builds — full stack, from schema to production UI Available for: Full-stack web app development (frontend + backend + DB) API integrations (third-party services, CRMs, trading platforms) AI-powered automation scripts/tools Automated testing setup (Playwright) Real-time systems (WebSocket, live dashboards) Availability: Open to full-time or part-time work Rate: Open to hourly — happy to discuss based on scope Contact: DM

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