Rahul J.

Data Engineering & AI Automation Expert | Cloud Data, ETL.

💲$85.00/hr 🏆 Top Rated Plus on Upwork 🏆 Associated with Techdome [Top Rated Plus | 99% Job Success] 🏆#1 Global creator on n8n ✅ Fluent English ✅ Swift response and communications ✅ 12+ Years in System Design & Automation ✅ 50+ Successful project deliveries ✅ 150+ Combined Team Experience I help startups and established businesses turn complex technology requirements into scalable cloud, data, AI, API, and automation solutions. I'm Rahul, a technology leader, Cloud Data Engineer, AI Solutions Architect, Software Architect, and technology advisor with 12+ years of experience across cloud computing, data engineering, AI/ML, SaaS architecture, backend systems, API development, automation, and DevOps. I work with founders, CTOs, product teams, and enterprises that need someone who can understand both the business objective and the technical architecture behind it. What I Can Help You Build ☁️ Cloud Data Engineering Design and build modern, scalable data platforms across Microsoft Azure, AWS, and Google Cloud Platform. Data engineering architecture ETL / ELT pipelines Data integration Data migration Data lakes Data warehouses Cloud data platforms Data processing with Apache Spark Python-based data pipelines Data quality and transformation Data governance and security Cloud data warehouse optimization Database architecture Real-time and batch data processing Analytics-ready data infrastructure 🤖 AI & Machine Learning Build practical AI systems that integrate with your products, data, and business workflows. AI application development AI agents and autonomous workflows AI workflow automation AI voice agents OpenAI integrations Azure AI Machine Learning TensorFlow PyTorch Scikit-learn LangChain AI-powered SaaS features AI automation and orchestration 🚀 SaaS Architecture & Scaling If you're building an MVP or scaling an existing SaaS product, I can help with the technology strategy and architecture. SaaS architecture Multi-tenant architecture Microservices Backend architecture Cloud-native application design MVP architecture Product architecture System modernization Performance optimization Infrastructure scaling API architecture Database scaling Cost optimization Technical roadmap Architecture reviews Technical due diligence I can help you move from idea → architecture → MVP → production → scale. 🔌 API & Backend Engineering Build reliable APIs and backend systems that connect products, databases, SaaS platforms, AI systems, and internal applications. RESTful APIs GraphQL API development API integrations API orchestration Webhooks FastAPI Node.js NestJS Python Java C# JavaScript TypeScript Authentication & authorization OAuth2 JWT mTLS Third-party API integrations Microservices ⚙️ Automation & n8n I also design and deploy production-ready workflow automation using n8n, including: API orchestration Webhook automation Conditional workflows JavaScript function nodes Retry and error handling Approval workflows Cron-based automation CRM automation SaaS integrations Data synchronization Internal business automation HR, finance and operations workflows Billing and invoicing automation AI workflow automation AI voice agent workflows Zapier / Make / Integromat → n8n migrations Self-hosted, VPS and cloud deployments I work with integrations such as Slack, Notion, WhatsApp, Twilio, Stripe, Airtable, Zoho, Google Sheets, ClickSend and Intercom, depending on project requirements. ☁️ Cloud, DevOps & Infrastructure Design and deploy secure, scalable cloud infrastructure using: Microsoft Azure AWS Google Cloud Platform Docker Kubernetes Terraform Git GitHub Actions Jenkins Azure DevOps CI/CD Cloud-native architecture Infrastructure automation Containerized applications Cloud migration Production deployments Monitoring and performance optimization 🧠 Virtual CTO / Technology Advisory You don't always need another developer. Sometimes you need someone who can help you make the right technology decisions. I work with founders and business leaders as a Virtual CTO / Technology Advisor, helping with: Technology strategy SaaS scaling strategy Product architecture Technical roadmaps Architecture decisions Technology stack selection Cloud strategy AI adoption strategy Data strategy Engineering team guidance Development process improvement Technical risk assessment Technical due diligence MVP planning Build vs. buy decisions Infrastructure and cloud cost planning Engineering team mentoring Technology-led business growth For founders who need CEO-level technology guidance, I can bridge the gap between business goals, product strategy, engineering execution, data, AI and infrastructure. My Technology Stack Languages: Python, Java, C#, JavaScript, TypeScript Backend & Frameworks: FastAPI, Node.js, NestJS, React Data & Databases: Apache Spark, MySQL, PostgreSQL, MongoDB, Redis, Firestore, Oracle NoSQL Cloud: Microsoft Azure, AWS, Google Cloud Platform AI & ML: OpenAI, Azure AI, TensorFlow, PyTorch,