Pavandeep s.

I build production-ready SaaS, AI, web, and mobile applications — from architecture and MVP development to APIs, AI integrations, cloud deployment, and scaling. With 9+ years of software development experience, $20K+ earned on Upwork, and 1,000+ Upwork hours, I’ve worked on complex products including AI platforms, ERP systems, real-time transcription, video conferencing, marketplaces, mobile apps, and business automation software. I also work beyond feature development — helping teams make better technical decisions, improve existing codebases, strengthen architecture, and establish engineering practices for long-term maintainability. WHAT I CAN HELP YOU WITH • SaaS platforms & MVPs from idea to production • AI-powered web and mobile applications • OpenAI, GPT & LLM integrations • AI agents, RAG, chatbots & workflow automation • Next.js, React & TypeScript applications • Node.js, Python/FastAPI & Laravel backends • REST APIs, microservices & third-party integrations • React Native mobile applications • ERP, CRM & business management platforms • Real-time video, audio & transcription systems • Cloud deployment, DevOps & production infrastructure • Existing application debugging, refactoring & optimization PRINCIPAL-LEVEL ENGINEERING & ARCHITECTURE For existing or growing products, I can help with the engineering decisions behind the code: • System architecture & architecture reviews • Modular monolith and microservice architecture • SOLID principles, OOP & design patterns • API architecture, versioning & integration design • Scalability, performance & reliability • Security, authentication, authorization & input validation • Database design, queries, indexing & data consistency • Code quality, refactoring & technical debt • Error handling, logging, monitoring & observability • Unit, integration & automated testing strategy • Dependency and configuration management • Git branching, pull requests & code-review standards • CI/CD pipelines, Docker & deployment workflows • AWS architecture, infrastructure & production deployments • Technical documentation and engineering standards • Mentoring developers and improving development workflows My approach is not to rewrite everything unnecessarily. I first understand the business requirements, existing architecture and constraints, then identify the highest-risk issues and prioritize improvements based on security, reliability, maintainability, performance and scalability. AI & LLM DEVELOPMENT I work with OpenAI, GPT, LLM APIs, Whisper, Hugging Face, LangChain, RAG, speech-to-text, AI agents and AI automation. My AI experience includes real-time transcription, intelligent business workflows, AI reporting, document/data processing, conversational interfaces and AI-powered SaaS features. FULL-STACK, CLOUD & DEVOPS Frontend: Next.js • React • TypeScript • JavaScript • Tailwind CSS Backend: Node.js • Python • FastAPI • Laravel • PHP • NestJS • REST APIs Mobile: React Native • Expo Databases: MySQL • PostgreSQL • MongoDB • Supabase • Prisma • Redis Cloud & DevOps: AWS • Azure • Docker • Nginx • Linux • CI/CD • VPS Real-Time: WebRTC • LiveKit • WebSockets • FFmpeg • Streaming APIs PRODUCT EXPERIENCE I’ve worked on AI-powered ERP platforms, education and school management SaaS, real-time transcription platforms, video conferencing systems, AI SaaS applications, business automation platforms, and web/mobile products. HOW I WORK Requirements → Architecture → Development → Testing → CI/CD → Deployment → Monitoring → Optimization → Scaling Whether you are starting a new SaaS/AI product or have an existing application that needs technical improvement, I can help with architecture, implementation, code review, performance, security, cloud infrastructure and ongoing engineering guidance. WHY CLIENTS HIRE ME • 9+ years of software development experience • 1,000+ Upwork hours • $20K+ earned through Upwork • Full-stack and backend engineering experience • AI/LLM and real-time systems experience • Cloud, DevOps and production deployment experience • Experience working with complex existing codebases • Focus on maintainable, secure and scalable solutions If you’re building a SaaS, AI product, ERP, mobile app, or complex web platform — or need a senior engineer to review and improve an existing system — send me the current architecture, tech stack and main challenge. I’ll help identify the practical next steps.