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dheeraj G.

Senior Full Stack Developer | SaaS, AI Apps, MVPs & Mobile Apps

Solihull, United Kingdom
$25 per hour
106 jobs
$200K+ total earnings

๐—œโ€™๐—บ ๐—ฎ ๐—ฆ๐—ฒ๐—ป๐—ถ๐—ผ๐—ฟ ๐—™๐˜‚๐—น๐—น ๐—ฆ๐˜๐—ฎ๐—ฐ๐—ธ ๐——๐—ฒ๐˜ƒ๐—ฒ๐—น๐—ผ๐—ฝ๐—ฒ๐—ฟ ๐—ต๐—ฒ๐—น๐—ฝ๐—ถ๐—ป๐—ด ๐˜€๐˜๐—ฎ๐—ฟ๐˜๐˜‚๐—ฝ๐˜€ ๐—ฎ๐—ป๐—ฑ ๐—ฏ๐˜‚๐˜€๐—ถ๐—ป๐—ฒ๐˜€๐˜€๐—ฒ๐˜€ ๐—ฏ๐˜‚๐—ถ๐—น๐—ฑ, ๐—ถ๐—บ๐—ฝ๐—ฟ๐—ผ๐˜ƒ๐—ฒ, ๐—ฎ๐—ป๐—ฑ ๐˜€๐—ฐ๐—ฎ๐—น๐—ฒ ๐—ฆ๐—ฎ๐—ฎ๐—ฆ ๐—ฝ๐—น๐—ฎ๐˜๐—ณ๐—ผ๐—ฟ๐—บ๐˜€, ๐— ๐—ฉ๐—ฃ๐˜€, ๐—”๐—œ-๐—ฝ๐—ผ๐˜„๐—ฒ๐—ฟ๐—ฒ๐—ฑ ๐˜„๐—ฒ๐—ฏ ๐—ฎ๐—ฝ๐—ฝ๐˜€, ๐—บ๐—ผ๐—ฏ๐—ถ๐—น๐—ฒ ๐—ฎ๐—ฝ๐—ฝ๐—น๐—ถ๐—ฐ๐—ฎ๐˜๐—ถ๐—ผ๐—ป๐˜€, ๐—ฑ๐—ฎ๐˜€๐—ต๐—ฏ๐—ผ๐—ฎ๐—ฟ๐—ฑ๐˜€, ๐—ฝ๐—ผ๐—ฟ๐˜๐—ฎ๐—น๐˜€, ๐—ฎ๐—ป๐—ฑ ๐—ฐ๐˜‚๐˜€๐˜๐—ผ๐—บ ๐˜€๐—ผ๐—ณ๐˜๐˜„๐—ฎ๐—ฟ๐—ฒ. ๐—œ ๐˜„๐—ผ๐—ฟ๐—ธ ๐—ฎ๐—ฐ๐—ฟ๐—ผ๐˜€๐˜€ ๐˜๐—ต๐—ฒ ๐—ณ๐˜‚๐—น๐—น ๐—ฑ๐—ฒ๐˜ƒ๐—ฒ๐—น๐—ผ๐—ฝ๐—บ๐—ฒ๐—ป๐˜ ๐—น๐—ถ๐—ณ๐—ฒ๐—ฐ๐˜†๐—ฐ๐—น๐—ฒ... ๐—ณ๐—ฟ๐—ผ๐—บ ๐—ฝ๐—น๐—ฎ๐—ป๐—ป๐—ถ๐—ป๐—ด ๐—ฎ๐—ป๐—ฑ ๐—ฎ๐—ฟ๐—ฐ๐—ต๐—ถ๐˜๐—ฒ๐—ฐ๐˜๐˜‚๐—ฟ๐—ฒ ๐˜๐—ผ ๐—ณ๐—ฟ๐—ผ๐—ป๐˜๐—ฒ๐—ป๐—ฑ, ๐—ฏ๐—ฎ๐—ฐ๐—ธ๐—ฒ๐—ป๐—ฑ, ๐—”๐—ฃ๐—œ๐˜€, ๐—ฑ๐—ฎ๐˜๐—ฎ๐—ฏ๐—ฎ๐˜€๐—ฒ๐˜€, ๐—ถ๐—ป๐˜๐—ฒ๐—ด๐—ฟ๐—ฎ๐˜๐—ถ๐—ผ๐—ป๐˜€, ๐—ฑ๐—ฒ๐—ฝ๐—น๐—ผ๐˜†๐—บ๐—ฒ๐—ป๐˜, ๐—ฎ๐—ป๐—ฑ ๐—ผ๐—ป๐—ด๐—ผ๐—ถ๐—ป๐—ด ๐—ฝ๐—ฟ๐—ผ๐—ฑ๐˜‚๐—ฐ๐˜ ๐—ฑ๐—ฒ๐˜ƒ๐—ฒ๐—น๐—ผ๐—ฝ๐—บ๐—ฒ๐—ป๐˜. ๐— ๐˜† ๐—ฐ๐—ผ๐—ฟ๐—ฒ ๐˜€๐˜๐—ฎ๐—ฐ๐—ธ ๐—ถ๐—ป๐—ฐ๐—น๐˜‚๐—ฑ๐—ฒ๐˜€ ๐—ฅ๐—ฒ๐—ฎ๐—ฐ๐˜, ๐—ก๐—ฒ๐˜…๐˜.๐—ท๐˜€, ๐—ก๐—ผ๐—ฑ๐—ฒ.๐—ท๐˜€, ๐—ง๐˜†๐—ฝ๐—ฒ๐—ฆ๐—ฐ๐—ฟ๐—ถ๐—ฝ๐˜, ๐—ฃ๐˜†๐˜๐—ต๐—ผ๐—ป, ๐—Ÿ๐—ฎ๐—ฟ๐—ฎ๐˜ƒ๐—ฒ๐—น, ๐—ฃ๐—›๐—ฃ, ๐—™๐—น๐˜‚๐˜๐˜๐—ฒ๐—ฟ, ๐—ฅ๐—ฒ๐—ฎ๐—ฐ๐˜ ๐—ก๐—ฎ๐˜๐—ถ๐˜ƒ๐—ฒ, ๐—ฃ๐—ผ๐˜€๐˜๐—ด๐—ฟ๐—ฒ๐—ฆ๐—ค๐—Ÿ, ๐— ๐˜†๐—ฆ๐—ค๐—Ÿ, ๐— ๐—ผ๐—ป๐—ด๐—ผ๐——๐—•, ๐—”๐—ช๐—ฆ, ๐—ฎ๐—ป๐—ฑ ๐——๐—ถ๐—ด๐—ถ๐˜๐—ฎ๐—น๐—ข๐—ฐ๐—ฒ๐—ฎ๐—ป. What I can help you with ๐Ÿ”บSaaS platform development ๐Ÿ”บStartup MVP development ๐Ÿ”บFull Stack web application development ๐Ÿ”บAI-powered web apps and AI SaaS products ๐Ÿ”บOpenAI / Claude / LLM integrations ๐Ÿ”บRAG, AI assistants, chatbots, and intelligent workflows ๐Ÿ”บReact / Next.js frontend development ๐Ÿ”บNode.js / Python / Laravel backend development ๐Ÿ”บAPI development and third-party integrations ๐Ÿ”บAdmin dashboards and customer portals ๐Ÿ”บSubscription billing and Stripe integrations ๐Ÿ”บFlutter and React Native mobile apps ๐Ÿ”บExisting application support, bug fixing, and feature development ๐Ÿ”บCodebase improvements, refactoring, and performance optimization ๐Ÿ”บCloud deployment, Docker, CI/CD, AWS, and DigitalOcean Iโ€™m comfortable joining projects at different stages. You may already have an existing SaaS product that needs new features, bug fixes, better architecture, or ongoing development support. Or you may have an idea, Figma designs, or an early prototype that needs to become a properly built, production-ready MVP. In both cases, I focus on creating clean, maintainable systems that are easy to extend as the product grows. Iโ€™ve worked on products involving SaaS subscriptions, marketplaces, business dashboards, AI tools, automation platforms, mobile apps, admin systems, payment workflows, APIs, and complex business logic. I can work independently as a senior developer or bring in support from my development team when a project needs additional frontend, backend, mobile, AI, QA, or DevOps capacity. My approach is simple: understand what the product actually needs, choose the right architecture, communicate clearly, and keep development moving without unnecessary complexity. If you need help with a SaaS product, MVP, AI application, web platform, or mobile app, send me your requirements, current stack, or even an existing codebase. Iโ€™ll take a look and tell you how Iโ€™d approach the development, what Iโ€™d prioritize first, and where I can help. Search me using these keywords: SaaS Developer, Full Stack Developer, Senior Full Stack Developer, SaaS Development, SaaS MVP Developer, MVP Developer, Startup MVP Developer, AI Developer, AI SaaS Developer, AI Web App Developer, React Developer, Next.js Developer, Node.js Developer, TypeScript Developer, JavaScript Developer, Python Developer, FastAPI Developer, Django Developer, Laravel Developer, PHP Developer, React Native Developer, Flutter Developer, Mobile App Developer, OpenAI Developer, Claude API Developer, LLM Developer, RAG Developer, AI Integration Developer, API Developer, PostgreSQL Developer, MySQL Developer, MongoDB Developer, Stripe Integration Developer, AWS Developer, Web Application Developer, Software Engineer, Product Engineer, Backend Developer, Frontend Developer, Full Stack Engineer.

Rameez H.

Senior Full-Stack Developer | SaaS, Ecommerce, APIs & CRM Integrations

Slough, United Kingdom
$28 per hour
5 jobs
$200+ total earnings

I help businesses fix, improve, and scale web applications, SaaS platforms, ecommerce systems, APIs, and CRM integrations. If your app has bugs, broken workflows, slow pages, messy integrations, checkout issues, or a technical backlog that keeps growing, I can help you get it under control and move faster. My core skills include Laravel, PHP, Vue.js, React, Inertia.js, Node.js, REST APIs, CRM integrations, payment systems, queue systems, web scraping, and third-party automation. I can help with: Laravel/PHP bug fixing and feature development SaaS dashboards, admin panels, and customer portals ecommerce fixes, checkout flows, and payment integrations Zoho, CRM, webhook, and API integrations performance improvements and technical cleanup internal tools and business automation ongoing monthly development support I focus on business outcomes, not just code. That means I care about saving time, reducing manual work, improving reliability, increasing conversions, and helping your system support real growth. If you need a reliable developer who can understand your business problem, work independently, and deliver clean practical solutions, send me a message and Iโ€™ll help you figure out the best next step.

Aqeel R.

AI Automation Expert & AI Agents | Voice AI, Workflow Automation, MCPs

London, United Kingdom
$35 per hour
180 jobs
$800K+ total earnings

$800K+ delivered on Upwork across 147 projects with a 100% Job Success Score. I build AI automation systems and AI agents that run in production, not demos that break in week three. Voice AI agents that handle real calls. Agentic AI workflows that make decisions instead of just moving data. Claude MCP servers that give your AI safe, scoped access to your actual tools. Over the last 10 years I have delivered automation and AI projects across multiple industries, helping teams cut 20-40+ hours of manual work per week. What I build: --- AI AGENT DEVELOPMENT - Custom AI agents for support, sales, operations, and internal ops - Multi-agent and agentic AI systems with tool use and decision logic - RAG systems: hybrid search, pgvector, reranking, citation-backed answers - Claude API and OpenAI GPT integrations - LangChain, LangGraph, CrewAI orchestration - Evals, logging, and observability so you can prove it works --- CLAUDE MCP & AI INFRASTRUCTURE - Custom MCP server development (Model Context Protocol) - Connecting Claude to your CRM, database, docs, and internal APIs - Role-based, scoped tool access that passes security review - Claude Agent SDK builds and long-context document workflows - Prompt engineering and multi-model routing (Claude + GPT) --- VOICE AI AGENTS - Inbound and outbound voice agents with VAPI, Retell AI, and Bland - ElevenLabs and Deepgram for natural voice and transcription - Twilio telephony, call routing, and warm transfer to humans - AI receptionist, lead qualification, appointment booking, and follow-up - Full CRM write-back so every call updates the pipeline --- WORKFLOW AUTOMATION - End-to-end business process automation with n8n, Make, and Zapier - Custom Python automation when no-code hits its ceiling - API-first integrations, webhooks, data sync, and enrichment - Lead generation, outreach, and nurture automation - Web scraping and data pipelines - Error handling, retries, and monitoring built in from day one Send me the workflow that is eating your week, or the AI feature that stalled after launch. I will reply with a practical approach and a realistic scope, not a sales pitch. Response within an hour. Comfortable across US, EU, and APAC time zones. AI automation, AI agent development, agentic AI, voice AI agent, AI voice agent, conversational AI, Claude MCP, MCP server, Model Context Protocol, Claude API, Claude AI, OpenAI, GPT, LLM integration, RAG, LangChain, LangGraph, CrewAI, n8n, n8n workflow, n8n AI agent, Make automation, Make scenarios, Make expert, Zapier, workflow automation, business process automation, API integration, webhook automation, Python automation, VAPI, Retell AI, ElevenLabs, Deepgram, Twilio, AI receptionist, AI chatbot, AI SMS bot, appointment booking automation, lead generation automation, CRM automation, HubSpot, GoHighLevel, Salesforce, Pipedrive, Airtable, Notion automation, web scraping, data pipeline, AI consultant, AI developer

Talha B.

Full-Stack MERN Developer | AI Integrations | Mobile Development

Cardiff, United Kingdom
$35 per hour
13 jobs
$30K+ total earnings

Expert in Full Stack Development and Cybersecruity Transform Your Vision into Scalable, High-Performance Secure Applications Looking to build a cutting-edge web or mobile application? I specialize in MERN Stack Development, AI Integration, and Mobile App Solutions that deliver measurable business results. ๐—ฃ๐—ฟ๐—ผ๐˜ƒ๐—ฒ๐—ป ๐—ฆ๐˜‚๐—ฐ๐—ฐ๐—ฒ๐˜€๐˜€: - Scaled a web application from 1,000 to over 30,000 active users. - Designed subscription systems that handled millions of transactions. - Delivered AI-driven platforms that enhanced automation and business intelligence. ๐—ช๐—ต๐—ฎ๐˜ ๐—œ ๐—–๐—ฎ๐—ป ๐——๐—ผ ๐—ณ๐—ผ๐—ฟ ๐—ฌ๐—ผ๐˜‚: - Build robust web applications that scale effortlessly, supporting growth from hundreds to thousands of users. - Develop AI-powered tools to streamline operations and improve efficiency. - Create mobile apps for iOS and Android with seamless functionality and user-friendly designs. - Architect SaaS platforms that process millions of transactions smoothly. Technical Expertise: โžก๏ธ Frontend: React.js, Next.js, Tailwind CSS โžก๏ธ Backend: Node.js, Express.js, Django, Flask โžก๏ธ Mobile: React Native, Swift, Kotlin โžก๏ธ AI: ChatGPT integration, intelligent automation โžก๏ธ Database: MongoDB, PostgreSQL, Firebase โžก๏ธ Cloud: AWS, Google Cloud โžก๏ธ Cybersecurity: Security Architecture, Vulnerability Assessment, Authentication & Authorization, Data Protection, Secure API Design, Security Auditing Industries Served: Iโ€™ve helped clients in e-commerce, finance, education, real estate, and more. Letโ€™s discuss how I can help your business thrive with tailored solutions that deliver real impact. Please use the following keywords to find me: Full Stack Developer, MERN Stack Developer, React Developer, Node.js Developer, MongoDB Developer, Express.js Developer, JavaScript Developer, TypeScript Developer, React.js, Node.js, MongoDB, Express.js, RESTful API Developer, GraphQL Developer, Backend Developer, Frontend Developer, Mobile App Developer, Flutter Developer, Flutter Expert, Dart Developer, Cross-Platform Mobile Development, Hybrid Mobile Apps, Android Development, iOS App Development, App Development, App UI/UX Design, App Prototyping, Native App Development, Mobile App Development, Mobile Application Development, App Store Optimization (ASO), API Integration, PHP Developer, PHP Web Development, Laravel Developer, WordPress Development, Custom PHP Solutions, Web Development, Responsive Web Design, PHP Frameworks, MySQL, PostgreSQL, AWS, Cloud Computing, AWS Developer, Amazon Web Services (AWS), Firebase Integration, Payment Gateway Integration, Serverless Architecture, Microservices Architecture, Database Design, Web API Development, App Performance Optimization, Push Notification Integration, App Deployment, App Updates, Mobile App Testing, API Security, OAuth, JWT Authentication, Continuous Integration (CI/CD), DevOps, Git & GitHub, Docker, Kubernetes, Agile Development, Jira & Trello, Unit Testing, Quality Assurance (QA), Version Control, Cross-Platform Solutions, Mobile App UX/UI Design, Web Application Security, App Maintenance, App Customization, Web Application Optimization, Web Performance Optimization, Code Reviews, E-commerce Web Development, SaaS Development, SEO for Apps, App Consulting, App Architecture, Cloud Solutions, Mobile App Consulting, App Analytics Integration, App Cloud Integration, Push Notifications, Firebase Cloud Messaging, In-App Purchases (IAP), Single Page Applications (SPA), Progressive Web Apps (PWA), WebSocket Development, Mobile Game Development, UX/UI Prototyping, Mobile App Debugging, App Wireframing, Serverless App Development, CI/CD Pipeline Setup, App Performance Testing, AI, ChatGPT, Artificial Intelligence, Blockchain.

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