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$40/hr
96%
Job Success
$300K+ earned
Available now
Offers consultations
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I help businesses build web apps, dashboards, portals, automation tools, and SaaS products from idea to launch.
A lot of projects need more than just a nice frontend or a working backend. The real work is making everything connect properly, the user flow, the database, the APIs, the admin side, payments, login, third party tools, and the parts users never see but still depend on every day.
That is where I can help.
I work across frontend, backend, database, API integrations, automation, and deployment. This can include custom web apps, internal tools, SaaS platforms, CRM portals, eCommerce features, admin dashboards, AI powered features, payment flows, and business automation.
My main stack includes React, Next.js, Node.js, PHP, Laravel, WordPress, Shopify, Webflow, MySQL, PostgreSQL, Firebase, REST APIs, OpenAI integrations, Zapier, Make, n8n, and custom backend logic.
Some common projects I can help with include:
Custom web app development
SaaS platform development
Admin dashboards and client portals
API development and third party integrations
AI features inside existing platforms
CRM and workflow automation
Payment gateway integration
Database planning and optimization
WordPress, Shopify, and Webflow development
Frontend fixes, backend fixes, and full product improvements
The goal is simple. Build something that works well for real users, is easy to manage, and does not become difficult to update later.
If you already have a design, I can turn it into a working product. If you only have an idea, I can help shape the structure, suggest the right stack, and build the first working version step by step.
Mir W.
has worked
.
$25/hr
100%
Job Success
$70K+ earned
Available now
Start of list.
End of list.
𝐁𝐮𝐬𝐢𝐧𝐞𝐬𝐬 𝐥𝐨𝐠𝐢𝐜? 𝐓𝐞𝐜𝐡𝐧𝐢𝐜𝐚𝐥 𝐞𝐱𝐞𝐜𝐮𝐭𝐢𝐨𝐧? 𝐈 𝐞𝐚𝐭 𝐛𝐨𝐭𝐡 𝐟𝐨𝐫 𝐛𝐫𝐞𝐚𝐤𝐟𝐚𝐬𝐭😎
Let's collaborate to turn your vision into reality, one line of code at a time.
Leveraging 𝐀𝐈 𝐭𝐨𝐨𝐥𝐬 like Cursor, Windsurf, and Bolt.new has become a core part of my workflow - streamlining development, reducing repetitive code, and improving overall code quality. I also explore 𝐀𝐈-𝐝𝐫𝐢𝐯𝐞𝐧 𝐚𝐩𝐩𝐫𝐨𝐚𝐜𝐡𝐞𝐬 for testing and documentation.
- These tools typically help cut development time by around 20%, while maintaining high standards.
I am a dynamic full-stack developer hungry to dive deep into the cutting-edge world of technology.
My core values: build great things, deliver real results, and create lasting success.
𝐏𝐫𝐨𝐠𝐫𝐚𝐦𝐦𝐢𝐧𝐠 𝐋𝐚𝐧𝐠𝐮𝐚𝐠𝐞𝐬: JavaScript(ES5/ES6/ES7+), Typescript, CSS/CSS3, HTML/HTML5;
𝐅𝐫𝐨𝐧𝐭-𝐞𝐧𝐝:
✔ React, Next.js, Redux, MobX, React-query, Axios
✔ React Hooks(useEffect,useState,useMemo, useContext, useRef, useReducer)
✔ various UI libraries Material UI, Ant-Design, Styled Components, Semantic UI, Chakra UI, Bootstrap, Tailwind CSS etc.
✔ UI/UX, responsive & adaptive web
✔ Building complex user interfaces
𝐁𝐚𝐜𝐤-𝐞𝐧𝐝:
✔ NodeJS, NestJS, ExpressJS, Supabase
✔ RESTful APIs, third-party APIs, GraphQL
𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞𝐬: MongoDB, MySQL, PostgreSQL
𝐎𝐩𝐞𝐫𝐚𝐭𝐢𝐧𝐠 𝐒𝐲𝐬𝐭𝐞𝐦𝐬: Linux/Ubuntu, Microsoft Windows, MacOS
𝐎𝐭𝐡𝐞𝐫: Github/Bitbucket/GitLab, Jira/Asana/Trello/Redmine/Basecamp,
Agile/Scrum/Waterfall, Create RESTfull API, SOLID principles, OO
If you want a professional full-stack developer with years of experience working in remote teams - just send me an invitation and let's discuss your project right away!
Inna S.
has worked
.
Associated with
Incode Group
$900K+
earned
$30/hr
95%
Job Success
$200K+ earned
Available now
Offers consultations
Start of list.
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𝗧𝗼𝗽 𝗥𝗮𝘁𝗲𝗱 𝗙𝘂𝗹𝗹-𝗦𝘁𝗮𝗰𝗸 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 𝘄𝗶𝘁𝗵 𝟯50+ 𝗰𝗼𝗺𝗽𝗹𝗲𝘁𝗲𝗱 𝗽𝗿𝗼𝗷𝗲𝗰𝘁𝘀. 𝗜 𝗵𝗲𝗹𝗽 𝗦𝗮𝗮𝗦 𝘀𝘁𝗮𝗿𝘁𝘂𝗽𝘀 𝗮𝗻𝗱 𝗯𝘂𝘀𝗶𝗻𝗲𝘀𝘀𝗲𝘀 𝗯𝘂𝗶𝗹𝗱 𝘀𝗰𝗮𝗹𝗮𝗯𝗹𝗲 𝗥𝗲𝗮𝗰𝘁, 𝗡𝗲𝘅𝘁.𝗷𝘀, 𝗡𝗼𝗱𝗲.𝗷𝘀 𝗮𝗻𝗱 𝗟𝗮𝗿𝗮𝘃𝗲𝗹 𝗮𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀.
I help startups, SaaS companies, and growing businesses build scalable, high-performance web applications that solve real business problems.
With 12+ years of experience and 300+ successful projects delivered, I specialize in full-stack development using modern JavaScript frameworks and backend technologies to create secure, scalable, and user-friendly applications.
What I Can Help You Build
✅ SaaS Platforms & Custom Business Applications
✅ CRM, ERP & Internal Management Systems
✅ AI-Powered Web Applications
✅ REST APIs & Third-Party Integrations
✅ Dashboard & Analytics Platforms
✅ E-commerce Solutions
✅ Multi-Tenant Applications
✅ Real-Time Applications
✅ Enterprise Web Platforms
Frontend Development Expertise
• React.js
• Next.js
• Vue.js
• TypeScript
• JavaScript (ES6+)
• Tailwind CSS
• Material UI
• Flutter
• Bootstrap
• Responsive UI/UX Development
Backend Architect Expertise
• Node.js
• Express.js
• Laravel
• PHP
• Dart
• RESTful APIs
• GraphQL
• Authentication & Authorization
• Payment Gateway Integration
• Database Design & Optimization
Database & Cloud
• MySQL
• PostgreSQL
• MongoDB
• Redis
• AWS
• Docker
• CI/CD Pipelines
• VPS & Cloud Deployment
Cross-Platform Tech Stacks
• Flutter
• React Native
Why Clients Hire Me
✔ Strong problem-solving skills
✔ Clean, maintainable, scalable code
✔ Fast communication and regular updates
✔ Business-focused development approach
✔ Reliable delivery and long-term support
✔ Experience working with startups, agencies, and enterprise clients
I'm not a simple coder; I specialize in helping businesses build reliable products that are scalable and maintainable.
Whether you need a complete SaaS platform, a custom web/Mobile application, API integrations, or ongoing full-stack development support, I'm ready to help bring your project to life.
We're just a message away from building something great together.
Azhar B.
has worked
.
Associated with
Madsols
$80K+
earned
$15/hr
100%
Job Success
$5K+ earned
Start of list.
End of list.
Looking for a developer who can build a website that not only looks great but also performs, scales, and supports your business as it grows?
I'm a Top Rated WordPress & Full Stack Developer specializing in custom websites, WooCommerce solutions, and modern web applications. I work with startups, businesses, and agencies to build reliable digital products that combine excellent user experience with clean, maintainable, and scalable development.
Whether you need a new website, a complete redesign, custom functionality, or a full-stack application, my focus is always the same: delivering solutions that create long-term value—not just completing another project.
What I Can Help You Build:-
WordPress Development
- Custom WordPress Websites
- Website Redesign & Modernization
- WooCommerce Stores & Custom Checkout
- Custom Themes & Plugin Development
- Elementor, Gutenberg & Bricks Builder
- Figma/XD to WordPress
- Membership & Booking Websites
- Website Migration
- Performance Optimization
- Core Web Vitals Optimization
- Security Hardening
- Ongoing Maintenance & Support
Full Stack Development
- Custom Web Applications
- SaaS MVP Development
- Admin Dashboards
- Client Portals
- CRM & Internal Business Systems
- REST API & Third-Party Integrations
- Payment Gateway Integrations
- Authentication & User Management
Technologies
Frontend: React, Next.js, JavaScript, TypeScript, HTML5, CSS3, Tailwind CSS
Backend: PHP, Laravel, Node.js, Express.js
Database: MySQL, PostgreSQL, MongoDB
Cloud & Deployment: AWS, DigitalOcean, Vercel, Docker
AI & Automation: OpenAI, ChatGPT, Claude, AI Chatbots, Workflow Automation
Why Clients Work With Me
Clients hire me because they need more than someone who can write code, they need a developer who understands business goals, communicates clearly, and builds solutions that are designed to last.
You can expect:
✔ Clean, scalable, and maintainable development
✔ Mobile-first, responsive websites
✔ Performance and security built into every project
✔ Transparent communication with regular progress updates
✔ Reliable delivery and attention to detail
✔ Long-term technical support when needed
If I believe there's a better technical approach for your project, I'll recommend it before development begins. My goal is to help you make the right decisions not simply complete a task.
My Development Approach
Every successful project starts with understanding your business, your users, and your objectives.
From there, I focus on:
- Choosing the right technology for your goals
- Building scalable and maintainable solutions
- Writing clean, well-structured code
- Thorough testing before deployment
- Delivering a smooth launch with ongoing support when required
Whether You Need
- A professional business website
- A high-performing WooCommerce store
- A complete website redesign
- Custom WordPress functionality
- API integrations
- A scalable web application
- A long-term development partner
I'd be happy to discuss your project and recommend the most practical solution based on your goals.
Send me a message or invite me to your project, I'd love to hear what you're building.
$20/hr
100%
Job Success
$20K+ earned
Available now
Offers consultations
Start of list.
End of list.
🥇 Top 𝟯% React & Full Stack Developer 🎯 Delivered 𝟭𝟬𝟬+ 𝗣𝗿𝗼𝗷𝗲𝗰𝘁𝘀 from Scratch ⏳ Completed 𝟮,𝟬𝟬𝟬+ 𝗛𝗼𝘂𝗿𝘀 on Upwork 🌍 Trusted by 𝟯𝟬𝟬+ 𝗖𝗹𝗶𝗲𝗻𝘁𝘀 📈
I am a results-driven React & React Native Full Stack Engineer with 12+ years of experience building scalable, high-performing, and business-focused applications across Web and Mobile platforms. I have worked with startups, scale-ups, and enterprise-level clients across sectors like FinTech, Healthcare, SaaS, E-commerce, Education, and Media.
💼 My Expertise Includes:
✅ Web & Mobile App Development
React.js, Next.js, Vue.js, Gatsby, Remix
React Native (Expo & CLI), Flutter
Responsive, scalable front-end architecture
Cross-platform mobile apps for iOS & Android
✅ Back-End & API Development
Node.js, Express.js, NestJS
REST APIs, GraphQL
Firebase, Supabase, AWS (EC2, Lambda, S3)
PostgreSQL, MongoDB, MySQL, DynamoDB
✅ Performance & Optimization
Google Lighthouse, Core Web Vitals
Lazy Loading, Asset Compression
Pixel-perfect UI/UX with Tailwind CSS, MUI, ChakraUI
✅ Cloud & DevOps
AWS, Vercel, DigitalOcean, Netlify
Docker, Kubernetes, CI/CD pipelines
Microservices, Serverless, Background Jobs, WebSockets
✅ E-commerce & SaaS Solutions
Payment Gateway Integrations (Stripe, Razorpay, Paddle)
Shopify integrations & headless setups
Subscription systems & in-app purchases
✅ Testing & Quality Assurance
Jest, Cypress, Detox, Playwright
Performance monitoring (Firebase Crashlytics, Flipper)
✅ Business Process Automation & AI Integrations
OpenAI, ElevenLabs, NLP, Computer Vision
Automation tools: Celery, Apache Airflow, RPA solutions
Chatbots, Virtual Assistants, predictive analytics
✅ End-to-End Product Development
Ideation & requirements gathering
Prototyping with Figma / Canva
Agile sprints & milestones
🧩 Industries I Serve:
▫️ Healthcare
▫️ Fitness & Wellness
▫️ FinTech & Banking
▫️ Education & EdTech
▫️ E-commerce & SaaS
▫️ Travel & Hospitality
▫️ Media & Entertainment
▫️ B2B Solutions
🚀 My Approach to Building Products:
🔷 Discovery & Planning – understand your goals, target audience, and technical requirements
🔷 Design & Prototyping – wireframes & user flows for a great user experience
🔷 Agile Development – iterative, transparent, and collaborative
🔷 Testing & QA – manual + automated for robust, bug-free products
🔷 Launch & Beyond – deployment, user onboarding, and post-launch support
🌟 Why Clients Hire Me:
💡 Top-rated and reliable, with clear & fast communication
💡 Strong business understanding beyond just “coding”
💡 Proactive problem-solving with scalable, maintainable solutions
💡 Always on time and on budget
💡 Full ownership of your product like it’s my own
🛠️ Tech Stack & Tools:
✔️ React, Next.js, Vue.js, Remix
✔️ React Native, Flutter, Ionic
✔️ TypeScript, JavaScript (ES6+)
✔️ Tailwind CSS, Material UI, Bootstrap
✔️ Redux, Zustand, MobX
✔️ Node.js, Express, NestJS
✔️ Firebase, Supabase, AWS, Vercel
✔️ PostgreSQL, MongoDB, MySQL, DynamoDB
✔️ Stripe, Razorpay, Paddle, Twilio
✔️ GraphQL, REST APIs
✔️ Docker, Kubernetes, GitHub Actions
✔️ Figma, Canva, Miro
👨💻 What I Can Do for You:
⭐ Build stunning cross-platform mobile apps
⭐ Modernize legacy systems with new technology
⭐ Create powerful web applications from scratch
⭐ Connect secure backends with robust APIs
⭐ Optimize performance, SEO, and conversions
⭐ Integrate third-party services to supercharge features
⭐ Provide after-launch maintenance & future scaling
💼 Project Highlights:
🏋️ Fitness Industry – scaled health & wellness platforms to 500,000+ users
🏦 FinTech – built secure, high-performance banking apps with user-friendly UIs
🛍️ E-commerce – created headless commerce apps driving 40%+ conversions
🎓 EdTech – designed scalable learning platforms for global audiences
🌐 Enterprise Solutions – automated workflows, reduced costs by 35%
🌍 Work Process & Availability:
🟢 40+ hours/week | 8 hours/day | 7 days/week
🟢 100% transparent & proactive communication (Slack, Teams, Discord)
🟢 Agile methodology using Jira, ClickUp, Notion, Git
🟢 Free consultation to align goals
🟢 Ongoing after-support & one-month free maintenance
🗝️ Keywords:
React Developer | React Native App Developer | Next.js Expert | TypeScript Developer | Cross-Platform Mobile App Developer | Node.js | Express | Firebase | GraphQL | Tailwind CSS | Vue.js | SaaS Development | E-commerce | FinTech Apps | Startup MVP | Frontend Engineer | Full Stack Developer | Progressive Web Apps (PWA) | Headless CMS | Agile Software Development | REST APIs | AWS | Automation | Artificial Intelligence | Machine Learning | DevOps | CI/CD | UI/UX | Responsive Web Design | Performance Optimization | Business Transformation | API Integrations
💌 Let’s build your vision together! Feel free to send me a message or invite me to your job post — I’ll reply within a few hours.
⚠️ Copying my profile overview or keywords will lead to a report to Upwork. ⚠️
Kind Regards,
Jaspreet
Jaspreet S.
has worked
.
Associated with
Graphic Corner
$200K+
earned
$30/hr
97%
Job Success
$100K+ earned
Available now
Start of list.
End of list.
Senior Full Stack Developer | Top Rated Plus Developer | 300+ Projects Completed
Are you seeking a Full Stack Developer, web expert, development partner, or business tech consultant? With 7+ years in full-stack and cross-platform development, I help founders and teams take products from concept to launch, web, mobile, and desktop, without the drama.
I’ve delivered Full Stack Solutions, SaaS platforms, dashboards, marketplaces, and mobile apps used by real customers, shipping on time, documenting clearly, and keeping codebases clean for the next sprint.
What you’ll get when we work together
✅Built-around-your-goals delivery: clear scope, measurable outcomes, short feedback loops.
✅Senior judgment: patterns that keep features stable, testable, and easy to extend.
✅Fast start: day-one environment setup, baseline CI, and a small first milestone.
✅Ongoing support: runbooks, monitoring, and pragmatic maintenance after launch.
✅Creative problem-solving: practical solutions when specs are evolving.
Tech Stack
✅Front-end: TypeScript, React.js, Next.js, Vue.js, Nuxt.js, Angular, HTML5/CSS3, Tailwind, Ant Design, Material UI, Full Stack Development
✅Back-end: Node.js, Nest.js, Express.js, Koa, REST/GraphQL, Sequelize, TypeORM, PHP/Laravel, Symfony, .NET
✅Databases: PostgreSQL, MySQL, MongoDB, Redis, Firebase, GraphQL (resolvers/persisted queries)
✅Mobile / Cross-Platform: React Native, Flutter (store submissions, OTA updates)
✅QA: Manual testing, Jest, Mocha, Cypress, API testing with Postman
✅DevOps: Docker, Nginx, Jenkins, GitHub Actions, Amazon ECS
✅Cloud: AWS, Google Cloud Platform, Microsoft Azure, DigitalOcean
Stop scrolling through endless profiles, you’ve found your build partner. Send a message to set up a quick consultation and outline your first milestone.
Buzz words:
Development Services:
Product Development, Web Application Development, Website Development, Ecommerce Website Development, MVP Development, Application Development, Frontend Development, Backend Development, Full Stack Development, MERN Stack Development, Test Driven Development TDD, Agile Software Development, SaaS Development, Software Architecture and Design, API Integration, REST API Development, Third Party API Integration, ChatGPT API Integration, Website Performance Optimization, Progressive Web Apps PWA, Database Architecture, Database Design, Database Development, System Architecture, Responsive Design, Server Deployment
Languages:
TypeScript, JavaScript, PHP, C Sharp, XML, JSON, HTML5, CSS3
Frontend:
ReactJS, NextJS, Redux, Redux Saga, React Query, MobX, VueJS, Vuex, Vuetify, NuxtJS, Quasar, Angular, Tailwind CSS, Ant Design, Material UI, Bootstrap, Styled Components, Emotion, SASS, LESS, CSS Grid, Flexbox
Backend:
NodeJS, NestJS, Koa, ExpressJS, Socket IO, PassportJS, Sequelize, TypeORM, Laravel, Symfony, ASP NET Core, ASP NET MVC, SignalR, GraphQL
Databases:
PostgreSQL, MySQL, MongoDB, Firebase, MariaDB, Redis
Testing:
Jest, Jasmine, Mocha, Cypress
DevOps Cloud Infrastructure:
Docker, Nginx, Jenkins, Continuous Integration and Continuous Deployment, AWS Lambda Amplify EC2 ECS CloudFront, Google Cloud Platform, Microsoft Azure, DigitalOcean, Heroku, Webpack, Git Bitbucket GitHub GitLab, Swagger, Vercel, NPM, Yarn
APIs and Integrations:
Stripe, PayPal, Elasticsearch, Twilio, OpenAI, GPT 4, GPT 4o
Project Management and Collaboration:
Agile, Scrum, Kanban, Jira, Trello, Asana, Slack, Monday, Notion, Confluence
Design and UX:
Figma, FigJam, Wireframing, Prototyping, UI Kits, Mobile First Design
Other:
Single Page Applications SPA, Server Side Rendering SSR, Client Side Rendering CSR, SEO, CMS WordPress Headless, Web3, NFT, Payment Gateway Integration, Data Scraping, CRM Development, Cross Browser Compatibility, Quality Assurance QA, Microservices, Modular Architecture, Event Driven Architecture, CQRS, Hexagonal Architecture, Domain Driven Design DDD, API Gateway, Webhooks, Rate Limiting, Throttling, CORS, Content Security Policy CSP
Auth and Security:
OAuth2, OpenID Connect, SAML, Single Sign On SSO, JSON Web Tokens JWT, Two Factor Authentication 2FA, Multi Factor Authentication MFA, Role Based Access Control RBAC, Attribute Based Access Control ABAC, Keycloak, Auth0, AWS Cognito, Web Application Firewall WAF, OWASP Top 10, Secrets Management, Vault
Compliance:
GDPR, HIPAA, SOC 2, PCI DSS, Audit Logs, Data Retention, PII Masking
Performance and Delivery:
SSR, SSG, ISR, Code Splitting, Lazy Loading, Incremental Builds, Edge Functions, CDN Caching, Image Optimization, Web Vitals, Prefetch, Preload
Realtime and Messaging:
WebSockets, Server Sent Events, WebRTC, Socket IO, Kafka, RabbitMQ, AWS SQS SNS, BullMQ, Redis Streams, Publish Subscribe
DevOps and Infrastructure as Code:
Kubernetes, Helm, Terraform, Pulumi, Ansible, ArgoCD, GitOps, Docker Compose, Nginx, Traefik, Full Stack Development
Ishtiaq A.
has worked
.
$25/hr
100%
Job Success
$100K+ earned
Available now
Start of list.
End of list.
I’m an experienced Full-Stack JavaScript Developer with 8+ years of hands-on expertise building secure, scalable, and high-performance web applications. I design and deliver solutions tailored to startups, SaaS platforms, and enterprise systems.
From dynamic single-page applications and real-time APIs to multi-tenant platforms, dashboards, and admin panels, I build future-ready applications that balance technical excellence with real business impact.
Core Expertise
• Modern frontend development with component-based frameworks
• Scalable backend systems and API development
• Real-time application features and event-driven architectures
• Secure authentication, authorization, and access control
• Cloud-ready deployments and automated delivery pipelines
• Microservices, serverless architectures, and multi-tenant systems
What I Build
• End-to-end full-stack applications with scalable architectures
• SEO-friendly, high-performance web applications
• SaaS platforms with secure access and modular design
• Interactive dashboards, internal tools, and admin systems
• Workflow automation and data-driven platforms
With a proven ability to deliver production-ready web applications, SaaS platforms, and enterprise systems, I bring strong technical depth, clean architecture, and a business-focused mindset. As a Top Rated Plus freelancer, I’m committed to building secure, efficient, and scalable solutions designed to grow with your business.
$20/hr
100%
Job Success
$9K+ earned
Start of list.
End of list.
100% Job Success | Top Rated | 5.0★ Average
Senior Full-Stack AI Engineer building production-ready SaaS platforms, mobile apps, marketplaces, booking systems, and AI-powered workflows.
I help startups and product teams turn ideas into real software: clean architecture, scalable databases, authentication, payments, dashboards, automations, AI integrations, and deployment.
I do not only build screens. I take ownership from product logic to production.
What I build:
SaaS MVPs: onboarding, dashboards, roles, permissions, admin panels
Mobile apps: React Native / Expo, auth, premium features, app-ready builds
AI integrations: Claude, OpenAI, Gemini, image analysis, document processing, AI-assisted workflows
Payments: Stripe Checkout, subscriptions, webhooks, customer portals
Booking systems: calendars, availability logic, confirmations, admin workflows
Marketplaces: listings, transactions, search, maps, custom business logic
Automations: Make, n8n, Zapier, CRM/email/SMS workflows
Product architecture: database design, API structure, edge cases, deployment, handoff
Tech stack:
Next.js, React, TypeScript, React Native, Expo, Node.js, Laravel/PHP, PostgreSQL, Supabase, Firebase, Stripe, OpenAI, Claude API, Gemini, Mapbox, Tailwind, Docker, Vercel, Railway, Render, GitHub.
Recent work:
AI fitness mobile app with React Native, auth, AI-generated plans, image analysis, and premium features
Production SaaS platform with Next.js, Supabase, AI workflows, auth, database/RLS, and billing flows
Booking/customer management platform with calendar logic, admin dashboard, customer profiles, notes, reminders, and payments
Marketplace-style systems with listings, transactions, ownership logic, search, and admin workflows
AI document automation: PDF extraction, rule-based validation, structured Excel/report output
eSIM e-commerce flow with checkout, digital product delivery, order management, and admin operations
How I work:
Clear communication
Fast MVP delivery without messy architecture
Strong product judgment, not just code execution
AI-assisted development with Claude Code, Cursor, ChatGPT, Copilot, and OpenAI tools
Comfortable joining existing codebases, fixing complex issues, and shipping improvements quickly
I am currently working on production SaaS systems with real users, including complex workflows, payments, permissions, automations, files, and AI-assisted product development.
Native Spanish, professional English. Flexible with time zones.
Looking for startups and teams that need someone who can own the build, think through the product, and ship reliable software.
Facundo Ezequiel S.
has worked
.
$40/hr
98%
Job Success
$100K+ earned
Start of list.
End of list.
Building your MVP shouldn’t feel chaotic or risky!
I help founders turn early ideas into real, functional web products through a clear, structured development process, without guesswork or technical noise. Most MVP projects I work on fall in the $3k–$9k USD range.
Most of the founders I work with don’t have a technical team and don’t need one.
What they need is clarity, a realistic plan, and a partner who can execute efficiently.
One of my core goals is to be efficient with my clients’ budgets. Building MVPs that include only what’s necessary to validate the idea, reduce risk, and move confidently into the next stage of the business.
**How I work**
This is not just development. It’s a guided product process:
1. Idea → Clarity
I refine your vision, define the core use cases, and turn everything into a clear, actionable development plan.
2. UI/UX before code
I design the interface first (desktop + mobile), aligned to what will actually be built — no over-design, no wasted effort.
3. MVP development
I build full-stack web applications with clean architecture, scalable foundations, and production-ready deployment.
4. Launch & next steps
Once live, I iterate based on real usage and define clear next steps for growth.
**What I typically build**
- Startup MVPs
- SaaS platforms
- Web applications with dashboards and multi-roles
- AI-powered MVPs and integrations
- Internal tools and custom web platforms
Most MVP projects I work on fall in the $4k–$9k USD range, depending on scope and timelines.
Projects are structured in clear stages, so you only move forward once each phase is approved.
**Core skills & tech stack**
Web Development
Web Applications
MVP development
Full Stack Development
AI Integrations
React.js
Next.js
Node.js
NestJS
Express.js
AWS
Vercel
Stripe
Twilio
WordPress
Manuel N.
has worked
.
$25/hr
100%
Job Success
$30K+ earned
Available now
Offers consultations
Start of list.
End of list.
I'm a Top Rated Full Stack Developer with 10+ years of experience building web apps, mobile apps, and AI-powered products that ship and hold up in production. Founders, startups, and growing companies hire me when they need a developer who can own the full technical side, from architecture and design through to deployment and post-launch support, without needing hand-holding along the way. I've shipped products across healthtech, proptech, fintech, edtech, and e-commerce, from solo founder MVPs to enterprise platforms.
I also hold a medical degree, which means when I work on healthtech products I understand the clinical context, not just the code.
🤖 AI Integration & Automation:
Building real AI products, not just API wrappers. I integrate Claude (Anthropic), GPT-4, GPT-4o, and other LLMs into production applications including chatbots, intelligent search, content generation, RAG (Retrieval Augmented Generation) pipelines, vector search with Pinecone, pgvector, and Weaviate, autonomous AI agents, and multi-step AI workflows. I also design and implement automation systems using n8n, Make, Zapier, and Airtable to eliminate manual work and scale operations. Prompt engineering, LangChain, LlamaIndex, embeddings, and AI-assisted development with Cursor are part of my daily workflow.
🎨 Frontend Development:
Building fast, accessible, pixel-perfect UIs across web and mobile. I translate Figma designs into polished interfaces and optimize for performance, SEO, and conversion from the ground up.
React, Next.js, TypeScript, JavaScript, TailwindCSS, Redux, Framer, Webflow, Shopify, WordPress, Squarespace, Gatsby, Vue.js, React Native, Flutter, Expo, iOS development, Android development, cross-platform mobile.
🛠️ Backend Development:
Building robust, secure, and scalable APIs and backend systems. I handle auth flows, role-based access control, payment integrations, database design, microservices architecture, web scraping, and third party API integrations across complex products.
Node.js, Express.js, NestJS, Python, FastAPI, GraphQL, RESTful API development, PostgreSQL, MongoDB, DynamoDB, MySQL, Redis, WebSockets, Prisma, Supabase, Strapi, Payload CMS, headless CMS, serverless architecture.
☁️ Cloud & DevOps:
Deploying and maintaining production systems with proper CI/CD pipelines, monitoring, and error tracking.
AWS (EC2, S3, Lambda, RDS), Firebase, Azure, Google Cloud Platform, Docker, Kubernetes, Railway, Render, Vercel, GitHub Actions.
🧠 AI & Automation Stack:
Claude API, Anthropic API, OpenAI API, GPT-4, GPT-4o, LangChain, LlamaIndex, RAG, embeddings, vector search, Pinecone, pgvector, Weaviate, AI agents, autonomous workflows, n8n, Make, Zapier, Airtable, Cursor, prompt engineering.
🛍️ E-commerce & SaaS Development:
Shopify development, marketplace development, SaaS development, subscription billing, Stripe integration, e-commerce platforms, multi-tenant architecture, white-label products.
🖌️ Design:
Figma, Adobe XD, Photoshop, Illustrator
✅ How I Work:
I take ownership. I communicate clearly and keep you updated without you having to chase me. I write clean, maintainable code built for growth, not just launch, and I don't disappear after delivery. I am available post-launch.
✅ Track Record:
100% Job Success Score. Top Rated on Upwork.
42+ successfully completed Upwork contracts. Projects spanning healthtech, proptech, fintech, edtech, and e-commerce across web, mobile, and AI.
Have a project in mind? Let's talk.
Charles A.
has worked
.