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$15/hr
50%
Job Success
$100+ earned
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𝗙𝘂𝗹𝗹-𝗦𝘁𝗮𝗰𝗸 𝗪𝗲𝗯 & 𝗠𝗼𝗯𝗶𝗹𝗲 𝗔𝗽𝗽 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 | 𝗖𝗿𝗼𝘀𝘀-𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺 | 𝗔𝗜/𝗠𝗟 𝗦𝗽𝗲𝗰𝗶𝗮𝗹𝗶𝘀𝘁
Full stack mobile app developer with 7+ years of experience in Mobile App Development, specializing in iOS, Swift, Android, Kotlin, KMM, Kotlin Mutliplatform / KMP, React Native, and Flutter. I have successfully delivered 120+ mobile applications in different roles as mobile app developer, flutter app developer, flutter full stack developer, flutter flow, mobile app design, mobile ui ux designer, swift ios developer, android developer, kotlin developer, react native developer, mobile game developer achieving a 5-star rating on Upwork and helping clients scale their businesses with high-performance solutions.
Keywords:
“Full stack developer,” “Full stack web developer,” “Full stack engineer,” “Full stack development,” “Full stack programmer,” “Full stack software developer,” “Full stack JavaScript developer,” “MERN stack developer,” “MEAN stack developer,” “LAMP stack developer,” “JAMstack developer,” “Senior full stack developer,” “Remote full stack developer,” “Freelance full stack developer,” “Backend and frontend developer,” “Web application developer,” “SaaS developer,” “API developer,” “Cloud developer,” “Enterprise application developer,”
“Frontend developer,” “Frontend engineer,” “React.js developer,” “React expert,” “React Native developer,” “Angular developer,” “AngularJS expert,” “Vue.js developer,” “Next.js expert,” “Nuxt.js developer,” “Svelte developer,” “JavaScript developer,” “TypeScript developer,” “jQuery developer,” “Bootstrap expert,” “Tailwind CSS developer,” “HTML5 developer,” “CSS3 developer,” “UI developer,” “UX developer,”
“Backend developer,” “Node.js developer,” “Express.js expert,” “Python developer,” “Django developer,” “Flask expert,” “FastAPI developer,” “PHP developer,” “Laravel developer,” “Symfony developer,” “CodeIgniter expert,” “Ruby developer,” “Ruby on Rails developer,” “Java developer,” “Spring Boot expert,” “Kotlin developer,” “C# developer,” “ASP.NET developer,” “.NET Core developer,” “Golang developer,”
“Database developer,” “SQL developer,” “MySQL expert,” “PostgreSQL developer,” “MongoDB developer,” “NoSQL expert,” “Firebase developer,” “DynamoDB expert,” “Oracle database developer,” “Redis developer,” “GraphQL developer,” “Database administrator,” “Data modeling expert,” “Database optimization,” “ETL developer,” “BigQuery expert,” “Snowflake developer,” “Supabase developer,” “CouchDB expert,” “MariaDB developer,”
“Mobile app developer,” “iOS developer,” “Android developer,” “Flutter developer,” “React Native expert,” “Xamarin developer,” “Swift developer,” “Kotlin mobile developer,” “Objective-C developer,” “Cross platform developer,” “Progressive web app developer,” “Hybrid app developer,” “Mobile UI developer,” “Mobile UX expert,” “Mobile backend developer,” “API integration developer,” “Firebase mobile developer,” “App Store deployment,” “Play Store deployment,” “iOS/Android full stack developer,”
“DevOps engineer,” “Cloud engineer,” “AWS developer,” “AWS Lambda expert,” “Azure developer,” “Google Cloud developer,” “Kubernetes expert,” “Docker developer,” “CI/CD expert,” “Jenkins developer,” “Terraform expert,” “Ansible developer,” “Serverless developer,” “Cloud native developer,” “Infrastructure as code,” “Cloud security expert,” “Microservices developer,” “Cloud API developer,” “Amazon EC2 expert,” “AWS RDS developer,”
“E-commerce developer,” “Shopify developer,” “WooCommerce expert,” “Magento developer,” “BigCommerce developer,” “OpenCart expert,” “Prestashop developer,” “Wix developer,” “Squarespace developer,” “WordPress full stack developer,” “Drupal developer,” “Joomla developer,” “CMS developer,” “Custom plugin developer,” “Theme customization expert,” “Headless CMS developer,” “Sanity expert,” “Contentful developer,” “Ghost CMS expert,”
“REST API developer,” “GraphQL API expert,” “API integration developer,” “Payment gateway integration,” “Stripe integration expert,” “PayPal integration developer,” “Braintree integration,” “Twilio developer,” “Zapier expert,” “Webhooks integration,” “Social media API developer,” “Google Maps API developer,” “Firebase integration,” “Third party API developer,” “API automation expert,” “SOAP API developer,” “Custom API developer,” “API security expert,” “Microservices API developer,” “API testing developer,”
“Blockchain developer,” “Web3 developer,” “dApp developer,” “Smart contract developer,” “NFT expert,” “AI developer,” “Machine learning developer,” “Data science expert,” “TensorFlow developer,” “PyTorch developer,” “Chatbot developer,” “OpenAI developer,” “LangChain expert,” “RPA developer,” “IoT developer,” “AR/VR developer,” “Game developer,” “Unity developer,” “Unreal Engine developer,” “Three.js developer,”
⚡️ AVAILABLE FOR NEW PROJECTS
⚠️ Press Invite Button on my page and let's talk
Mohammed A.
has worked
.
United Kingdom
$40/hr
100%
Job Success
$9K+ earned
Start of list.
End of list.
Full-Stack Developer | WordPress Plugin & Theme Development | Data Engineering & Reporting (BigQuery, Looker Studio)
I am a highly skilled Full-Stack Developer specializing in WordPress Plugin/Theme Development, custom CMS/CRM systems using Node.js and React, and advanced Data Engineering & Reporting. With a strong background in both front-end and back-end development, I deliver tailored, efficient, and scalable solutions that drive productivity and reduce costs.
✅ Core Skills & Expertise
- WordPress Plugin & Theme Development: Custom plugins, themes, Gutenberg blocks, API integrations.
- React & Node.js CMS/CRM Systems: Building high-performance applications with modern frameworks and technologies.
- Data Engineering & Reporting: Expertise in Google BigQuery, Looker Studio, and end-to-end reporting solutions.
- API Integration & Automation: Seamless integration of third-party services (e.g., Stripe, Plaid API) to enhance functionality and streamline workflows.
- Cloud Infrastructure Management: Cost-optimization and deployment using Google Cloud Tools, Docker, and server-side rendering.
🚀 Notable Achievements
- Engineered the backend for a comprehensive Looker Studio report with 20+ pages, delivering robust data visualizations and insights for key stakeholders.
- Built custom WordPress site themes and plugins for lead generation, effectively driving revenue for the company.
- Reduced Google Cloud costs by 75%, saving £9k per month through strategic optimization of backend services.
- Automated revenue and event data processes, saving over 6 hours per day for the finance team by implementing a robust Node.js and Google Cloud-based solution.
- Increased conversion rates by 35% through developing tailored landing pages optimized for marketing campaigns using modern frameworks like React and Tailwind CSS.
- Led and mentored junior developers, significantly enhancing team productivity and fostering a culture of learning.
📌 Why Work With Me?
I bring a combination of technical expertise and a focus on delivering high-quality, scalable solutions. Whether it's building custom WordPress plugins, creating advanced React/Node CMS systems, engineering comprehensive data reporting solutions, or optimizing cloud infrastructure, I ensure seamless communication and results that exceed expectations.
Let’s discuss how I can help you achieve your goals with efficient, tailored web development and data reporting solutions.
$20/hr
100%
Job Success
$400+ earned
Available now
Offers consultations
Start of list.
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I’m a Full-Stack Developer with 6 years of experience, specializing in MERN stack, React Native, Flutter and AI. I help startups and businesses build complete digital products, providing full support across all phases — from design to development, deployment, and app launch. You don’t need multiple freelancers; I handle it all.
💻 Web Development (MERN Stack)
- Custom web apps, dashboards, SaaS platforms
- React.js frontend, Node.js & Express.js backend
- MongoDB design & optimization
- Admin panels, authentication, roles
- Realtime features (chat, notifications, live updates)
📱 Mobile App Development (React Native & Flutter)
- iOS & Android apps, cross-platform
- Pixel-perfect UI/UX design & implementation
- Firebase integration, payment gateways, push notifications
- App Store & Play Store publishing & updates
🤖 AI & Automation
- AI chatbots & assistants
- OpenAI GPT, LangChain integrations
- NLP, automation workflows, AI-powered features
⚙️ DevOps & Cloud
- CI/CD pipelines, Docker, Kubernetes
- Cloud deployment (AWS, GCP, Azure)
- App monitoring, scaling, and optimization
💡 Why Work With Me:
✔ End-to-end product development (design → development → deployment → app launch)
✔ AI-powered enhancements & full-stack expertise
✔ Clean, scalable, production-ready code
✔ Fast communication & long-term support
🚀 Let’s build your full digital solution together — I’m your one-stop shop for web, mobile, and AI projects.
Keywords:
Web & Backend, MERN Stack, React.js, Node.js, Express.js, MongoDB, REST API, JavaScript, TypeScript, React Native, Flutter, Android App Development, iOS App Development, AI Development, OpenAI API, LangChain, NLP (Natural Language Processing), DevOps, Docker, Kubernetes, CI/CD, AWS, Firebase, Full-Stack Development, Cross-platform Development, API Integration, Healthcare, Proptech, Realestate, AI, ai, Artificial Intelligence
$21/hr
98%
Job Success
$9K+ earned
Available now
Start of list.
End of list.
I help startups, SaaS companies, and enterprises turn complex ideas into scalable, secure, and high-performing digital products. Whether you’re struggling with slow systems, unclear architecture, scaling limitations, or building an MVP from scratch, I focus on solving the real product and engineering challenges that block growth.
My work covers the full lifecycle of product development, from discovery and architecture to development, deployment, and long-term scaling. The goal is simple: build systems that don’t just work, but stay reliable under real-world load, adapt as your business grows, and reduce long-term technical overhead.
Whether you're building a SaaS MVP, a multi-vendor marketplace, an enterprise dashboard, or an AI-driven platform, I bring both technical expertise and product thinking to deliver reliable, scalable, and business-focused solutions.
💡 𝐂𝐨𝐫𝐞 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞
🔹 Full-Stack Web & Cloud Development
Custom Web Apps – React.js, Node.js, Python (Django, Flask, FastAPI)
Frontend Development – Next.js, Redux Toolkit, Tailwind CSS, Material UI
Backend Development – Express.js, Django REST, GraphQL, WebSockets
Database Architecture – PostgreSQL, MySQL, MongoDB, Redis, Firebase
API Integrations – Stripe, PayPal, Twilio, QuickBooks, Google APIs, Zapier
Cloud & DevOps – AWS, Docker, Kubernetes, CI/CD pipelines, DigitalOcean
Migration & Refactoring – Legacy apps to modern full-stack architectures
Security & Performance – JWT/OAuth2, caching, OWASP best practices
🔹 AI & Automation Services
AI Agents & Workflows – Multi-Agent Systems (LangChain), CRM automation, lead qualification
AI Chatbots & VoiceBots – GPT-4o, Claude, LLaMA, Twilio, SynthFlow integrations
AI-Driven SaaS & MVPs – Smart SaaS platforms, personalization engines, task automation
LLM Integration – Fine-tuned models, Retrieval-Augmented Generation (RAG), API connectors
AI for Business Automation – Sales funnels, e-commerce personalization, internal workflows
🏆 𝐑𝐞𝐜𝐞𝐧𝐭 𝐒𝐮𝐜𝐜𝐞𝐬𝐬𝐟𝐮𝐥 𝐏𝐫𝐨𝐣𝐞𝐜𝐭𝐬
1. Subscription-Based SaaS Platform (Django + React):
Scalable SaaS solution with Stripe billing, role-based dashboards, and automated user onboarding.
2. Multi-Vendor Marketplace (MERN Stack):
Geo-aware marketplace with real-time product sync, Stripe Connect integration, and secure vendor management.
3. Enterprise Admin Dashboard (React + Django):
Feature-rich admin panel offering analytics, custom reports, and seamless data export capabilities.
4. AI-Powered Chatbot for SaaS:
GPT-4 chatbot with API integration for lead capture, user support, and automated SaaS interactions.
5. AI Workflow Automation for E-Commerce:
Intelligent multi-agent system optimizing order tracking, product personalization, and upselling strategies.
💡 𝐓𝐞𝐜𝐡 𝐒𝐭𝐚𝐜𝐤 & 𝐓𝐨𝐨𝐥𝐬
Frontend: React.js, Next.js, Redux, Tailwind CSS, Vue.js, Nuxt.js
Backend: Node.js, Express.js, Django, FastAPI, Laravel, REST, GraphQL
Databases: PostgreSQL, MongoDB, MySQL, Redis, Firebase, Supabase
AI Tools: LangChain, OpenAI (GPT-4o), Claude, LLaMA, RAG pipelines
Cloud & DevOps: AWS, DigitalOcean, Vercel, Docker, Kubernetes, CI/CD
Collaboration: GitHub, GitLab, Jira, Trello, ClickUp, Figma
💡 𝐈𝐧𝐝𝐮𝐬𝐭𝐫𝐢𝐞𝐬 𝐈 𝐚𝐦 𝐞𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞𝐝 𝐰𝐢𝐭𝐡 :
→ SaaS Platforms (billing, analytics, dashboards, automation)
→ Marketplaces & Multi-Vendor Apps (secure onboarding, payments, logistics)
→ FinTech (PCI-DSS, Plaid API, subscription models, invoice management)
→ Healthcare (HIPAA compliance, EHR, telemedicine, secure chat)
→ E-Commerce (headless storefronts, AI-driven personalization, inventory sync)
→ EdTech (interactive modules, gamification, student engagement)
→ Logistics & Real-Time Tracking (live maps, automated dispatch workflows)
→ AI-First Startups (AI-powered SaaS, chatbots, AI workflow automation)
💡 𝐖𝐡𝐲 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐂𝐡𝐨𝐨𝐬𝐞 𝐌𝐞
✔️ 10+ years full-stack experience + AI automation expertise
✔️ Ability to deliver MVP → scale-up → enterprise-grade systems
✔️ Business-focused mindset (not just code, but ROI & scalability)
✔️ Clean, maintainable, and well-documented codebases
✔️ Long-term collaboration and seamless timezone overlap
📩 𝐑𝐞𝐚𝐝𝐲 𝐭𝐨 𝐁𝐮𝐢𝐥𝐝 𝐨𝐫 𝐒𝐜𝐚𝐥𝐞?
From startups to enterprises, I help clients overcome complex technical challenges by architecting full-stack solutions that are scalable, secure, and performant. My expertise covers everything from RESTful APIs, GraphQL, and database design, to responsive UI development and cloud deployment.
If you’re looking for a Senior Full-Stack developer who also specializes in AI automation, chatbots, and SaaS scaling, let’s connect and bring your product vision to life.
Associated with
Matrix Marketers
$4M+
earned
United Arab Emirates
$25/hr
100%
Job Success
$400K+ earned
Available now
Offers consultations
Start of list.
End of list.
Full-Stack Web and Mobile App Developer | React | Node.js | Python | Laravel | React Native | AI & LLM Integration | SaaS Expert
I help startups, scaleups, and enterprises build fast, scalable, and revenue-driving web and mobile applications.
With 200+ successful projects delivered, I bring deep full-stack expertise across React.js, React Native, Node.js, Laravel, and Python, specializing in SaaS platforms, high-performance eCommerce solutions, cross-platform mobile apps, and AI/LLM-powered applications that turn complex ideas into intelligent digital products.
My experience with React Native enables me to build high-quality iOS and Android applications from a single codebase, accelerating time-to-market while maintaining a native user experience.
⭐ Results That Matter
✦ 200+ projects delivered across Full-Stack, SaaS, and enterprise systems
✦ Built platforms handling millions of users and high-traffic environments
✦ Increased conversion rates through UX and performance optimization
✦ Developed AI-powered apps and LLM integrations for automation and insights
💼 What I Can Do for You
✦ Full-Stack Web, Mobile & SaaS Development
End-to-end development from idea to deployment, scalable, secure, and built for growth
✦ UI/UX That Converts
Clean, intuitive, mobile-first designs that improve engagement and drive user actions
✦ Backend & API Engineering
Robust architectures using Node.js, Laravel, Django, REST & GraphQL built for performance and scalability
✦ Marketplaces & eCommerce
Multi-vendor platforms, secure payments, and seamless user experiences
✦ Payment & Subscription Systems
Stripe, PayPal, Apple Pay, billing systems, and workflow automation
✦ AI & LLM Integrations
Chatbots, automation tools, and intelligent features using OpenAI, GPT-4, LangChain, and modern AI stacks
💼 Tech Stack
✦ Frontend: React.js, Next.js, TypeScript, Tailwind CSS, Material UI
✦ Backend: Node.js, Laravel, Django, FastAPI, Python, REST APIs, GraphQL
✦ Databases: PostgreSQL, MongoDB, MySQL, Firebase, Redis
✦ Cloud & DevOps: AWS, Docker, CI/CD Pipelines, GitHub Actions
✦ CMS & eCommerce: Shopify, WordPress, WooCommerce
✦ AI & Automation: OpenAI API, GPT-4, LangChain, NLP, Chatbots, Recommendation Engines
✦Mobile App: React Native Mobile App Development
🏭 Industries I Have Worked With
✦ SaaS & Startups
MVPs, multi-tenant platforms, subscription billing, and user onboarding workflows
✦ eCommerce
Shopify, WooCommerce, headless stores, inventory systems, and product catalog management
✦ Fintech
Payment systems, fraud detection, secure backends, and compliance-ready architecture
✦ Healthcare
HIPAA-compliant platforms, patient portals, telemedicine apps, and appointment systems
✦ EdTech
LMS platforms, adaptive learning systems, gated content, and recurring billing integration
✦ Logistics
Live tracking, delivery management, driver apps, and route optimization systems
✦ Real Estate
Property listing platforms, geo-search, CRM integration, and booking systems
✦ AI & Automation Products
Intelligent workflows, document processing, agent systems, and smart search integrations
💼 Services Offered
1. Custom Full-Stack Web, Mobile & SaaS Application Development
2. AI Chatbot & LLM-Powered Application Development
3. RAG Pipeline & Vector Search Implementation
4. REST API & GraphQL Development and Integration
5. eCommerce Store Development on Shopify & WooCommerce
6. Cloud Infrastructure Setup & CI/CD Pipeline Automation
7. Backend Architecture & Microservices Development
8. React & Next.js Frontend Development
9. Mobile-Ready & Progressive Web App Development
✅ Why Clients Hire Me
✔ Proven Track Record
200+ projects delivered across multiple industries with measurable results
✔ Business-Driven Approach
Focused on delivering outcomes and ROI, not just writing code
✔ Scalable Architecture
Clean, maintainable, and future-ready solutions built to grow with your business
✔ Clear Communication
Regular updates, transparency, and proactive problem-solving throughout every project
✔ Reliable Delivery
Strong commitment to deadlines, quality, and long-term support
✔ Long-Term Partnership
A strategic tech partner contributing to product growth beyond just development
📩 Let's build something that grows.
Whether you need to launch fast, scale efficiently, or integrate AI into your product, message me and let's get started!
_________________________________________________________________________
Keywords:
Full-Stack Developer | React.js | Next.js | Node.js | Python | Laravel | Django | FastAPI | MERN Stack | SaaS Developer | AI Developer | LLM Integration | OpenAI API | GPT-4 | LangChain | REST API | GraphQL | TypeScript | Tailwind CSS | Web App Development | Mobile App Development | PostgreSQL | MongoDB | Redis | AWS | Docker | Shopify | WooCommerce | WordPress | Stripe | PayPal | CI/CD | Microservices | eCommerce Developer | Web App Development | NLP | Chatbot Developer | Full Stack Expert
Sheetal M.
has worked
.
Associated with
Matrix Marketers
$4M+
earned
$10/hr
$76 earned
Start of list.
End of list.
I am a Senior Full-Stack Developer & Generative AI Engineer with extensive experience in designing, building, and deploying scalable digital products. I specialize in combining modern full-stack engineering with advanced AI systems to create intelligent, automated, and high-performance solutions for businesses across the UK, Europe, Germany, and the Middle East.
As the Co-Founder & Technical Lead at Cyberonics Limited (UK), I oversee the architecture, development, and delivery of full-stack platforms and AI-powered applications. My work ranges from SaaS systems and enterprise dashboards to RAG-based knowledge tools, multi-agent workflows, custom chatbots, and automation pipelines that solve real business problems.
My approach emphasizes clean code, robust architecture, high reliability, and long-term scalability. I am comfortable taking a product from concept to production — including planning, UI/UX logic, API development, database modeling, AI integration, testing, optimization, and deployment.
🔹Generative AI & Applied Research
I have hands-on expertise with Large Language Models (LLMs) such as GPT, LLaMA, and Mistral, specializing in:
Fine-tuning, evaluation, and quantization for efficiency.
Building Retrieval-Augmented Generation (RAG) pipelines with vector databases (FAISS, Chroma, Pinecone).
Developing multimodal AI systems integrating text, images, audio, and video.
Designing advanced chatbots and assistants with contextual memory, voice interaction, and personalized responses.
Implementing AI for document summarization, translation, Q&A, and OCR-driven processing.
Leveraging Hugging Face, LangChain, Ollama, and other frameworks for enterprise AI deployments.
I focus on transforming cutting-edge research into real-world applications, ensuring each solution is reliable, efficient, and scalable.
🔹Full-Stack Web & Mobile Development
Beyond AI, I specialize in building the platforms that deliver AI to end users. I design and develop complete frontend and backend systems that make advanced AI tools accessible:
Frontend: React.js, Next.js, Tailwind CSS, TypeScript → responsive, modern, and interactive user interfaces.
Backend: Node.js, FastAPI, Express.js → scalable APIs, secure integrations, and real-time communication.
Databases & Storage: MongoDB, PostgreSQL, Firebase → structured and unstructured data handling.
Mobile Apps: React Native, Kotlin, and Android → cross-platform apps with native performance.
DevOps & Deployment: Docker, Kubernetes, AWS, GCP → secure, production-ready hosting.
UI/UX for AI: Designing intuitive dashboards, chat interfaces, and analytics panels tailored for AI-driven applications.
This full-stack expertise ensures I don’t just build the AI engine — I also create the interfaces, dashboards, and mobile/web experiences that make AI practical and impactful for real users.
🔹Key Strengths & Capabilities
LLMs: GPT, LLaMA, Mistral → fine-tuning, embeddings, optimization.
RAG & Vector Databases: FAISS, Chroma, Pinecone.
Multimodal AI: speech-to-text, text-to-speech, OCR, image-to-text.
AI Applications: chatbots (text + voice), assistants, summarization tools, translation, recommendation systems.
Full-Stack Development: React.js, Next.js, Tailwind, Node.js, FastAPI, Express.js.
Mobile Development: React Native, Kotlin, Android.
DevOps: Docker, Kubernetes, AWS, GCP, CI/CD pipelines.
Data Security: local hosting, privacy-first architectures, policy-driven systems.
Research to Product: prototype design, whitepapers, applied research, SaaS platforms.
🔹Industry Applications Delivered
I have successfully delivered AI-powered platforms and web/mobile apps across:
Healthcare – patient chatbots, medical document summarization.
Education – bilingual AI tutors, university chatbot platforms.
Finance – fraud detection support, AI-based document parsing.
Legal – contract summarization, knowledge-driven assistants.
Marketing & Customer Support – multilingual chatbots, voice-enabled service agents, data-driven analytics.
🔹My Philosophy
I believe AI is only as powerful as the experience delivered to users. That’s why I combine scientific AI expertise with end-to-end software engineering, ensuring businesses not only get powerful AI engines but also beautiful, intuitive, and scalable platforms to deploy them.
If you are looking for someone who can design, build, and deploy AI-powered web or mobile applications from the ground up, I can help you turn your ideas into real-world, production-ready solutions.
Let’s collaborate to build the next generation of Generative AI-powered platforms.
$40/hr
$1K+ earned
Start of list.
End of list.
I am a FullStack Developer with 8 years of experience building real products that people use every day. As a FullStack Developer, I work on both frontend and backend systems using React, React Native, and Node.js. I also build smart features with AI to improve how apps work.
Over the years, I have worked as a FullStack Developer on e-commerce platforms, fintech systems, healthcare apps, gaming platforms, property management tools, and chat systems powered by AI. In every project, I use React for web apps, React Native for mobile apps, and Node.js for backend services. I focus on writing clean code and making sure the app runs smoothly.
As a FullStack Developer, I handle the full process — planning, development, testing, and launch. I build user interfaces using React, develop mobile apps with React Native, create APIs using Node.js, and improve features with AI.
What I Do
As a FullStack Developer, I build:
Web platforms using React
Mobile apps using React Native
Backend systems using Node.js
Smart systems powered by AI
I use React to create clean and fast web interfaces. I use React Native to build apps that work on both iOS and Android. I use Node.js to manage data, servers, and APIs. I use AI to add smart automation, chat features, recommendations, and data analysis.
Every project I work on as a FullStack Developer connects React, React Native, Node.js, and AI together.
Technical Skills
Frontend
I build web apps using React.
I create dashboards, admin panels, SaaS platforms, and marketplaces with React.
As a FullStack Developer, I make sure React apps are fast and easy to use.
Mobile
I build cross-platform apps using React Native.
With React Native, I create smooth mobile experiences.
As a FullStack Developer, I use React Native to connect mobile apps to Node.js backends and AI services.
Backend
I develop backend systems using Node.js.
I build APIs, authentication systems, and databases with Node.js.
As a FullStack Developer, I make sure Node.js works perfectly with React and React Native.
AI Integration
I build intelligent systems using AI.
I add chat systems, automation, recommendations, and smart features using AI.
As a FullStack Developer, I connect AI with React, React Native, and Node.js.
Industries I’ve Worked In
As a FullStack Developer, I have built:
E-commerce platforms using React and Node.js
Healthcare apps using React Native and AI
Fintech systems using Node.js and React
Property management tools using React and Node.js
Chat platforms powered by AI
Mobile apps built with React Native
SaaS tools built with React, Node.js, and AI
In every project, I work as a FullStack Developer who understands how React, React Native, Node.js, and AI connect together.
How I Work
As a FullStack Developer, I:
Write clean code in React
Build scalable APIs in Node.js
Develop mobile apps in React Native
Improve systems using AI
Test and maintain both frontend and backend
I believe a strong FullStack Developer should understand both React and Node.js deeply. A modern FullStack Developer should also know React Native and how to use AI in real products.
Why Clients Work With Me
Clients hire me as a FullStack Developer because I handle everything:
Web apps built with React
Mobile apps built with React Native
Backend systems built with Node.js
Smart automation built with AI
As a FullStack Developer, I make sure React connects properly with Node.js. I make sure React Native apps work smoothly with Node.js APIs. I make sure AI features improve the user experience.
If you need a FullStack Developer who knows React, React Native, Node.js, and AI, I am ready to help.
Let’s build something great using React, React Native, Node.js, and AI together.
$25/hr
98%
Job Success
$6K+ earned
Available now
Start of list.
End of list.
Full Stack Developer | React Developer | Node.js Developer | Python Developer | AI Integration Specialist
I’m a Full-Stack Developer with expertise in React.js, Next.js, Node.js, Express.js, Python, and AI-driven application development. I specialize in building secure, scalable, and high-performance web applications that help startups and enterprises transform ideas into powerful digital products, from MVPs to enterprise-grade SaaS platforms.
My experience includes developing modern frontend interfaces, optimized backend architectures, RESTful APIs, and cloud-ready applications using clean code practices and scalable system design.
With a strong background in Artificial Intelligence and Machine Learning, I integrate intelligent capabilities into applications, including:
* Predictive Analytics
* Recommendation Systems
* Natural Language
→ Core Expertise :
1. Custom Web App Development (React, Next.js, Node.js, Django, Flask)
2. API Development & Integration (REST, GraphQL)
3. Database Design & Optimization (MongoDB, PostgreSQL, MySQL)
4. AI & Automation Solutions (OpenAI API, Python scripting, chatbots)
5. Performance Optimization, Code Refactoring, and Security Hardening
6. UI/UX Implementation with responsive, accessible frontends
7. DevOps & Cloud Deployment (AWS, Vercel, Docker, CI/CD)
→ Services I Offer
1. Full Stack SaaS & Cloud Application Development
- End-to-end full stack website development using React.js, Node.js, and Python (Django/Flask) for both frontend and backend.
- Scalable cloud architectures with AWS, DigitalOcean, Heroku for reliable performance and growth.
- SaaS features: subscription models, dashboards, analytics, and reporting tools built for high-traffic applications.
- API-driven architecture: REST & GraphQL APIs for seamless integrations and dynamic data handling.
- Performance, security, and maintainability baked in from day one to ensure enterprise-grade quality.
2. UI/UX Design & Prototyping
Wireframes, Figma prototypes & responsive UI implementation
Mobile-first, SEO-optimized, Core Web Vitals-friendly designs
UX decisions backed by data to boost conversions
3. Modern Backend & API Engineering
Node.js, Laravel, Django REST APIs, GraphQL
Authentication: JWT, OAuth2, Firebase Auth, Auth0
Microservices architecture, caching, real-time syncing
4. Marketplaces & Multi-Vendor Platforms
Custom vendor portals, onboarding flows, inventory tools
Secure payments (Stripe Connect, PayPal, Apple Pay)
Order tracking, real-time alerts, and review systems
5. Payments & Automation
Stripe, PayPal, Apple Pay, Braintree integration
Subscriptions, invoicing, automated refunds & reporting
Webhook-based workflow automation
6. Database Architecture & Optimization
Relational (PostgreSQL, MySQL) & NoSQL (MongoDB, Firebase)
Scalable schemas, optimized queries, migrations
Caching strategies for high-traffic systems (Redis, Memcached)
7. Third-Party & Microservice Integrations
CRM (Salesforce, HubSpot), Email (Klaviyo, Mailchimp)
ERP, POS, analytics, and payment systems
Event-driven architecture & API-first integrations
→ Tech Stack Expertise
1. Custom Full-Stack Web Application Development – Using React.js, Next.js, Node.js, Django, and Flask to build scalable, high-performance web apps.
2. API Development & Integration – Designing and integrating RESTful APIs, GraphQL APIs, and third-party services for seamless data flow.
3. Database Design & Optimization – Expertise in MongoDB, PostgreSQL, MySQL, ensuring efficient queries, indexing, and scalability.
4. AI & Automation Solutions – Implementing OpenAI API, Python scripting, machine learning, chatbots, and workflow automation for smarter applications.
5. Performance Optimization & Security Hardening – Code refactoring, backend optimization, caching strategies, and robust security best practices.
6. Responsive UI/UX Development – Building accessible, mobile-first, interactive frontends with React.js and modern design principles.
7. DevOps & Cloud Deployment – Deploying applications with AWS, Vercel, Docker, CI/CD pipelines, and containerized cloud infrastructure.
8. Full-Stack SaaS & Enterprise Solutions – Architecting multi-user platforms, dashboards, admin panels, and enterprise-grade software using React + Node + Python.
9. Real-Time Applications – Implementing WebSocket-based features, notifications, chat systems, and live dashboards for dynamic applications.
10. Scalable, Maintainable, Future-Proof Architecture – Designing modular, testable, and high-performance full-stack solutions for long-term business growth.
→ Let’s Build Something Impactful
Let’s talk! I’ll help you ship fast, scale reliably, and build full-stack web applications using React, Node.js, and Python that drive growth and deliver results.
📩 Message me today to turn your idea into a scalable, high-performance, and revenue-ready product.
Associated with
Matrix Marketers
$4M+
earned
$45/hr
100%
Job Success
$30K+ earned
Available now
Offers consultations
Start of list.
End of list.
When you work with me, you keep full ownership of everything.
I am a full stack developer, SaaS developer, and dashboard developer in the UK — Top Rated Plus on Upwork, top 3% globally. I build systems that run businesses — working platforms with real users, real transactions, and business impact.
My recent full stack developer work includes a SaaS platform for trades businesses — a Next.js app with job management, client records, quoting, and role-based access. I also built a B2B admin dashboard across PostgreSQL, Node.js, and React — the tool a team of 20 depends on every day.
As a full stack developer I own the entire stack — PostgreSQL design, Node.js and Nest.js backend, React and Next.js frontend, REST API integrations, Stripe payments, and Vercel deployment. Need a full stack developer, SaaS developer, or dashboard developer who owns the technical side — architecture, payments, integrations, deployment, security? Let's talk.
SaaS developer. Multi-tenant. Production-ready.
As a SaaS developer I delivered a multi-tenant SaaS starter on Next.js with Stripe subscriptions, PostgreSQL via Neon, role-based access, billing portal, and team invites — fully documented, repo transferred on handover. I led a full platform rebuild migrating a legacy PHP and WordPress stack to a modern Next.js and Nest.js architecture — 40% improvement in user engagement post-launch.
Backend developer. Nest.js. PostgreSQL.
As a backend developer I build production Nest.js and Node.js APIs on PostgreSQL with TypeScript end to end. My recent backend work includes a Nest.js and PostgreSQL backend for a raffle SaaS platform — secure JWT authentication, OAuth provider integration, password reset and recovery flows, and a clean REST API layer for a Next.js and React frontend. Backend work that has to be correct: every endpoint authenticated, every role enforced, every PostgreSQL query written with isolation in mind.
Security audit. Supabase RLS. Multi-tenant isolation.
As a full stack developer and technical consultant I run pre-launch security audits for SaaS founders — the review that must happen before real customer data goes live. My security audit work covers Supabase Row Level Security (RLS), multi-tenant isolation, PostgreSQL policy design, and authentication flows. I've audited a multi-tenant property maintenance SaaS on Supabase, reviewing RLS policies and tenant data separation. On another platform I found RLS policies that lived only in discarded migrations, never applied to the database — the silent multi-tenant data leak an audit catches before a breach. If you're a SaaS founder on Supabase, Next.js, or PostgreSQL and aren't certain your tenant data is isolated, that's the audit I do.
Dashboard developer. Data that changes decisions.
As a dashboard developer with a KendoReact commercial licence I build enterprise-grade interfaces standard React developers can't replicate — advanced data grids, real-time charts, and complex forms that perform under load. My dashboard developer portfolio includes a marketing analytics dashboard with AI insights that cut campaign review time by 60% for a British agency, and a SaaS analytics dashboard with Chart.js and PDF export that replaced a weekly manual reporting process.
Integrations. Authentication. Infrastructure.
OAuth integration and API authentication developer portal config — credential flows for Google, GitHub, and custom providers using NextAuth, Nest.js, and JWT. Google Tag Manager setup with GA4 and Meta Pixel across complex Next.js applications, with GTM as the management layer for non-technical teams. Transactional email wired to Resend and Brevo, plus Next.js blog and CMS setup with Sanity Studio.
Stripe. Payments. Automation.
Payment systems are a core part of my full stack developer work. I built a Stripe internal payment interface with role-based access on Next.js — PaymentIntent flow, full audit log, zero card data stored. I delivered Stripe payment integration with webhooks and subscription billing handling upgrades, downgrades, and failed payment recovery. I wire Stripe with Make, GoHighLevel, and Google Sheets so every transaction triggers the right email, CRM tag, and notification.
Technical consultant. Architecture. Audit.
I work as a technical consultant for non-technical founders. My tech stack and architecture audit with written report shows founders what they have, what's broken, and what to build next — vendor selection, architecture decisions, developer estimate review, security and multi-tenant isolation review, and a roadmap.
As a Next.js performance optimization specialist I audit and improve Lighthouse and PageSpeed results — render-blocking resources, Core Web Vitals, and measurable gains for user experience and search ranking.
Next.js · React · Node.js · Nest.js · PostgreSQL · Supabase · TypeScript · JavaScript · REST API · Stripe · Kendo UI · Sanity · Make · GoHighLevel · Vercel · NextAuth · JWT · OAuth · RLS · Chart.js · GA4 · Meta
Svitlana H.
has worked
.
$35/hr
96%
Job Success
$200K+ earned
Available now
Offers consultations
Start of list.
End of list.
Senior Full Stack Web & Mobile App Developer | Contract & Remote Specialist
With 15+ years of experience and over 4,000 hours worked on Upwork, I help businesses build scalable, secure, and high-performance web and mobile applications that deliver measurable results.
I specialise in PHP, Laravel, React, Node.js, Flutter, AWS, and AI/ML integration creating tailored solutions that meet your current needs and grow with your business.
💼 Core Services
Full Stack Web Development – PHP, Laravel, React, Vue.js, Nuxt.js, Node.js, TypeScript, Angular
Mobile App Development – Flutter, React Native, cross-platform, native iOS & Android
Cloud Integration & Deployment – AWS, Google Cloud, serverless architecture, CI/CD pipelines
AI/ML Integration – Hugging Face, Python, NLP, automation workflows
E-Commerce Solutions – WooCommerce, Shopify, OpenCart, Magento, custom SaaS platforms
Legacy System Modernisation – performance optimisation, security hardening, migration to cloud
🏆 Why Clients Hire Me
Proven Track Record: 217+ successful projects and $100K+ earned on Upwork
Enterprise Experience: Delivered solutions for Holland & Barrett, NHS, and other global brands
Industry Expertise: Healthcare, E-learning, FinTech, Retail, SaaS, and more
End-to-End Delivery: From initial concept to deployment, with ongoing support
Strong Communication: Clear updates, quick responses, and deadline-focused delivery
📌 Technology Stack & Tools
Languages & Frameworks: PHP, Laravel, JavaScript, TypeScript, React, Vue.js, Nuxt.js, Node.js, Flutter, Angular
Databases: MySQL, MongoDB, SQL Server
Cloud Platforms: AWS, Google Cloud
Version Control: Git, SVN
AI/ML Tools: Hugging Face, TensorFlow, Python
💡 Let’s Build Something Great
Whether you need a full-stack partner for a new build, a mobile app expert to reach more customers, or cloud & AI-powered solutions to modernise your systems, I can help.
📩 Let’s discuss your project today and bring your vision to life.
Wasiq C.
has worked
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