Sajjad S.

I’m an 𝐔𝐩𝐰𝐨𝐫𝐤 𝐓𝐨𝐩 𝐑𝐚𝐭𝐞𝐝 𝐏𝐥𝐮𝐬 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 with 𝟏𝟎+ 𝐲𝐞𝐚𝐫𝐬 𝐨𝐟 𝐞𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞, $300k+ earned, 100% Job Success, and 1700+ hours delivered on Upwork, building web applications, SaaS platforms, AI integrations, automation systems, e-commerce solutions, and custom business software. I help businesses build and improve products across AI, automation, WordPress, and custom software development. This includes AI agents and intelligent workflows, n8n and GoHighLevel automations, WordPress and WooCommerce solutions, SaaS platforms, APIs, and full-stack applications built with Next.js, React, Node.js, PHP/Laravel, and Python. I also worked as a 𝐖𝐨𝐫𝐝𝐏𝐫𝐞𝐬𝐬.𝐜𝐨𝐦 𝐒𝐮𝐩𝐩𝐨𝐫𝐭 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫 𝐚𝐭 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐭𝐢𝐜 𝐟𝐫𝐨𝐦 𝟐𝟎𝟐𝟑 𝐭𝐨 𝟐𝟎𝟐𝟔, handling real production issues involving WordPress, hosting, domains, DNS, SSL, migrations, email, themes, plugins, and troubleshooting. My strength is connecting modern AI capabilities with dependable full-stack engineering. I can take your project from requirements and architecture through development, integration, testing, deployment, and ongoing support. I also use AI-native development tools to accelerate research, implementation, debugging, testing, and documentation. I keep every architecture decision and production change human-reviewed, security-conscious, and test-backed. 🤖 𝐀𝐈 𝐒𝐘𝐒𝐓𝐄𝐌𝐒, 𝐆𝐄𝐍𝐄𝐑𝐀𝐓𝐈𝐕𝐄 𝐀𝐈 & 𝐀𝐔𝐓𝐎𝐌𝐀𝐓𝐈𝐎𝐍 • AI agents and agentic workflows with tool calling, memory, multi-step reasoning, and human handoff • Generative AI applications using OpenAI, Anthropic Claude, Google Gemini, and other LLM APIs • RAG, embeddings, vector databases, semantic search, and enterprise knowledge assistants • MCP integrations, structured outputs, prompt engineering, evaluations, guardrails, and fallback handling • AI chatbots and Vapi voice assistants for support, lead qualification, booking, and communications • n8n, Zapier, Make, and GoHighLevel automation connected with CRMs, Google Sheets, Slack, Monday, Asana, ClickUp, and external APIs 💻 𝐅𝐔𝐋𝐋-𝐒𝐓𝐀𝐂𝐊 𝐖𝐄𝐁, 𝐒𝐀𝐀𝐒 & 𝐄-𝐂𝐎𝐌𝐌𝐄𝐑𝐂𝐄 • SaaS products, MVPs, enterprise applications, customer portals, admin dashboards, marketplaces, job boards, real-time applications, and booking systems • Next.js, React, TypeScript, JavaScript, and Node.js • TALL, MERN, LAMP, .NET, Python, and C# development • Firebase, Firestore, Cloud Functions, AWS RDS, SQL Server, MySQL, MongoDB, Supabase, and third-party APIs • WordPress, WooCommerce, custom themes and plugins, Shopify, Stripe, PayPal, cryptocurrency, and payment integrations • Web scraping, browser automation, crawlers, and data processing using Playwright, Selenium, Scrapy, Python, and C# 🛡️ 𝐏𝐑𝐎𝐃𝐔𝐂𝐓𝐈𝐎𝐍 𝐄𝐍𝐆𝐈𝐍𝐄𝐄𝐑𝐈𝐍𝐆 & 𝐑𝐄𝐋𝐈𝐀𝐁𝐈𝐋𝐈𝐓𝐘 • Secure APIs, authentication, role-based authorization, data validation, and safe third-party integrations • Background jobs, webhooks, retries, monitoring, structured logging, AI cost controls, and failure recovery • Maintainable architecture, automated testing, performance optimization, and production-focused code review • End-to-end ownership with clear communication, realistic estimates, dependable delivery, and post-launch support Recent production work includes multi-stage AI pipelines for content generation, evaluation, scoring, rewriting, personalization, and external API synchronization, along with secure SaaS dashboards featuring session-based authentication, analytics, and role-aware data access. I have also built complex automation workflows connecting OpenAI, Firestore, Typeform APIs, webhooks, Google Cloud Functions, CRMs, and external services into complete production systems. 🏆 𝐖𝐇𝐘 𝐂𝐋𝐈𝐄𝐍𝐓𝐒 𝐂𝐇𝐎𝐎𝐒𝐄 𝐌𝐄 • 𝐔𝐩𝐰𝐨𝐫𝐤 𝐓𝐨𝐩 𝐑𝐚𝐭𝐞𝐝 𝐏𝐥𝐮𝐬 • 𝟏𝟎+ 𝐲𝐞𝐚𝐫𝐬 𝐨𝐟 𝐟𝐮𝐥𝐥-𝐬𝐭𝐚𝐜𝐤 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 • 𝐂𝐨𝐧𝐬𝐢𝐬𝐭𝐞𝐧𝐭 𝟓-𝐬𝐭𝐚𝐫 𝐜𝐥𝐢𝐞𝐧𝐭 𝐟𝐞𝐞𝐝𝐛𝐚𝐜𝐤 • Strong experience across both modern AI systems and established web platforms • A practical, business-focused approach to solving complex technical problems • 𝐅𝐨𝐫𝐦𝐞𝐫 𝐖𝐨𝐫𝐝𝐏𝐫𝐞𝐬𝐬𝐜𝐨𝐦 𝐒𝐮𝐩𝐩𝐨𝐫𝐭 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫 𝐚𝐭 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐭𝐢𝐜 🚀 𝐑𝐄𝐀𝐃𝐘 𝐓𝐎 𝐁𝐔𝐈𝐋𝐃? Whether you need an AI agent, RAG application, n8n or GoHighLevel automation, WordPress/WooCommerce solution, SaaS platform, API integration, or custom full-stack application, send me your requirements. I’ll review your needs, identify the right technical approach, and recommend the most practical path from idea to production. Let’s build a reliable solution that saves time, reduces manual work, and creates measurable value for your business.