If your data is stuck in the wrong system, in messy files, or behind an awkward API, I can help. I turn complex data problems into working systems and usable deliverables.
I help clients move data between platforms, automate manual work, clean up unreliable exports, and build workflows that save time and reduce errors. Whether the deliverable is a program they can keep using, or a clean CSV, Excel file, report, or database, I can make it happen.
Most of my work is API integrations, ETL pipelines, backend automation, data processing, and data migrations. I'm at my best when the problem is not clean or perfectly defined. I'll solve that problem first.
I build data workflows that are meant to hold up in real use. I work with complex APIs, big JSON or XML data files, elaborate schema, folders full of CSV and Excel files, and large datasets where correctness matters. The result is a cleaner dataset, a dependable program, or a responsive and well-designed workflow.
If you need a dependable program, a solid new system, or a clean final dataset, I can help.
REST API
API
Python
MySQL
pandas
PostgreSQL
SQLite
SQL
XML
Data Science
Data Processing
JSON
Data Cleaning
Jupyter Notebook
CSV
Mir W.
Braintree, Massachusetts
$40/hr
4.8
230 jobs
๐๐ช๐ก๐ก ๐๐ฉ๐๐๐ ๐ฟ๐๐ซ๐๐ก๐ค๐ฅ๐๐ง ๐๐ค๐ง ๐๐๐๐, ๐๐๐๐จ, ๐ฌ๐๐ ๐๐ฅ๐ฅ๐จ, ๐๐๐จ๐๐๐ค๐๐ง๐๐จ, ๐๐ฃ๐ ๐๐ช๐จ๐ฉ๐ค๐ข ๐๐ช๐จ๐๐ฃ๐๐จ๐จ ๐ฅ๐ก๐๐ฉ๐๐ค๐ง๐ข๐จ.
Need someone who can connect your frontend, backend, database, APIs, and third-party tools without making the development process complicated?
๐จโ๐ป Full Stack Developer using React, Next.js, Node.js, PHP, and MySQL
๐ SaaS development, MVP development, and custom web applications
๐ REST API development, payment integrations, and third-party APIs
๐ New product development, feature additions, debugging, and code improvements
๐ฑ Responsive web applications for desktop, tablet, and mobile
๐ค Direct communication with regular project updates
I help founders, startups, agencies, and businesses turn product ideas into working web applications. I can join at the planning stage, continue an existing build, fix an unfinished application, or add new features to a live product.
You are not hiring separate people for every part of the project. Frontend development, backend development, database work, API integrations, testing, and deployment can all be managed within one development process.
๐๐ฒ๐ฟ๐ฒโ๐ ๐๐ต๐ฎ๐ ๐ ๐ฐ๐ฎ๐ป ๐ต๐ฒ๐น๐ฝ ๐๐ผ๐ ๐ฏ๐๐ถ๐น๐ฑ
๐ญ. ๐๐๐น๐น ๐ฆ๐๐ฎ๐ฐ๐ธ ๐ช๐ฒ๐ฏ ๐๐ฒ๐๐ฒ๐น๐ผ๐ฝ๐บ๐ฒ๐ป๐
๐น Custom web application development from idea to launch
๐น Frontend, backend, database, and API development
๐น SaaS platforms, MVPs, portals, and internal business applications
๐น New feature development for existing web applications
๐น Testing, deployment, maintenance, and future improvements
๐ฎ. ๐ฅ๐ฒ๐ฎ๐ฐ๐ ๐ฎ๐ป๐ฑ ๐ก๐ฒ๐ ๐.๐ท๐ ๐๐ฒ๐๐ฒ๐น๐ผ๐ฝ๐บ๐ฒ๐ป๐
๐น React.js and Next.js web application development
๐น SaaS dashboards, admin panels, and customer portals
๐น Figma to React or Next.js development
๐น Responsive frontend development
๐น API-connected pages with search, filters, forms, and live data
๐น Server-side rendering and frontend performance improvements
๐ฏ. ๐ก๐ผ๐ฑ๐ฒ.๐ท๐ ๐๐ฎ๐ฐ๐ธ๐ฒ๐ป๐ฑ ๐๐ฒ๐๐ฒ๐น๐ผ๐ฝ๐บ๐ฒ๐ป๐
๐น Node.js and Express.js backend development
๐น REST API development and API integration
๐น User authentication and account management
๐น Admin, customer, vendor, and staff permissions
๐น Payment processing, subscriptions, and webhooks
๐น Custom business logic and automated workflows
๐ฐ. ๐ฃ๐๐ฃ ๐ฎ๐ป๐ฑ ๐ ๐๐ฆ๐ค๐ ๐๐ฒ๐๐ฒ๐น๐ผ๐ฝ๐บ๐ฒ๐ป๐
๐น Custom PHP web application development
๐น PHP and MySQL backend development
๐น Database-driven websites and business platforms
๐น Existing PHP application updates
๐น MySQL database planning and query improvements
๐น PHP bug fixing and feature development
๐ฑ. ๐ฆ๐ฎ๐ฎ๐ฆ ๐ฎ๐ป๐ฑ ๐ ๐ฉ๐ฃ ๐๐ฒ๐๐ฒ๐น๐ผ๐ฝ๐บ๐ฒ๐ป๐
๐น SaaS product development for startups and businesses
๐น MVP development for testing new product ideas
๐น Subscription plans and recurring payments
๐น User onboarding, dashboards, and account settings
๐น Admin controls for users, payments, content, and reports
๐น Product improvements based on customer feedback
๐ฒ. ๐๐ฃ๐ ๐ฎ๐ป๐ฑ ๐ง๐ต๐ถ๐ฟ๐ฑ-๐ฃ๐ฎ๐ฟ๐๐ ๐๐ป๐๐ฒ๐ด๐ฟ๐ฎ๐๐ถ๐ผ๐ป๐
๐น REST API development
๐น Third-party API integration
๐น Stripe and PayPal payment integration
๐น CRM, email, maps, analytics, and automation integrations
๐น Webhook setup and data synchronization
๐น Connecting web applications with external platforms
๐ณ. ๐๐๐ด ๐๐ถ๐ ๐ถ๐ป๐ด ๐ฎ๐ป๐ฑ ๐๐ ๐ถ๐๐๐ถ๐ป๐ด ๐ช๐ฒ๐ฏ ๐๐ฝ๐ฝ๐
๐น React, Next.js, Node.js, PHP, and MySQL bug fixing
๐น Completing unfinished web applications
๐น Fixing frontend, backend, API, and database problems
๐น Adding features to existing products
๐น Improving page speed and application performance
๐น Updating older code without unnecessary rebuilding
๐๐ผ๐บ๐บ๐ผ๐ป ๐ฝ๐ฟ๐ผ๐ท๐ฒ๐ฐ๐๐
โ SaaS application development
โ MVP development
โ Custom web applications
โ Business dashboards
โ Admin panels
โ Customer portals
โ Membership platforms
โ Subscription-based applications
โ Ecommerce web applications
โ Marketplace platforms
โ Booking applications
โ CRM applications
โ REST API development
โ Payment gateway integration
โ React and Next.js development
โ Node.js backend development
โ PHP and MySQL development
๐ง๐ฒ๐ฐ๐ต๐ป๐ผ๐น๐ผ๐ด๐ถ๐ฒ๐
โ React.js
โ Next.js
โ Node.js
โ Express.js
โ PHP
โ MySQL
โ PostgreSQL
โ JavaScript
โ TypeScript
โ HTML5
โ CSS3
โ Tailwind CSS
โ Bootstrap
โ REST APIs
โ Supabase
โ Git and GitHub
โ Vercel
โ AWS
โ Third-party APIs
โ Webhooks
๐ช๐ต๐ฎ๐ ๐๐ผ๐ ๐ฐ๐ฎ๐ป ๐ฒ๐ ๐ฝ๐ฒ๐ฐ๐
You will receive regular updates and straightforward explanations throughout the project. You will know what has been completed, what is currently being developed, and what comes next.
I also look at the product from a user and business perspective. When a requirement can be improved or simplified, I will discuss the option with you before development continues.
๐๐ ๐ฎ๐ค๐ช ๐ฃ๐๐๐ ๐ ๐๐ช๐ก๐ก ๐๐ฉ๐๐๐ ๐ฟ๐๐ซ๐๐ก๐ค๐ฅ๐๐ง ๐๐ค๐ง ๐ ๐๐๐๐ ๐ฅ๐ก๐๐ฉ๐๐ค๐ง๐ข, ๐๐๐, ๐๐ช๐จ๐ฉ๐ค๐ข ๐ฌ๐๐ ๐๐ฅ๐ฅ, ๐ค๐ง ๐๐ฃ ๐๐ญ๐๐จ๐ฉ๐๐ฃ๐ ๐ฅ๐ง๐ค๐๐ช๐๐ฉ, ๐จ๐๐ฃ๐ ๐ข๐ ๐ ๐ข๐๐จ๐จ๐๐๐.
Front-End Development
API
Mobile App Design
Webflow
Laravel
React
Back-End Development
Node.js
Shopify
Python
PHP
Web Application
WordPress
Stripe
JavaScript
Fahad K.
West Bloomfield Township, Michigan
$30/hr
4.8
206 jobs
๐ Hi, I'm Fahad Khan
I build high-performance Flutter apps, native iOS & Android applications, and professional websites for startups and growing businesses that need to launch fast โ without sacrificing scalability, security, or code quality.
With 100+ projects delivered and a 100% Job Success Score, I help founders, product teams, and businesses turn ideas into reliable, revenue-generating digital products โ whether that's a cross-platform mobile app, a native iOS/Android application, or a conversion-optimized website.
๐ฑ Mobile App Development (Flutter | iOS | Android)
Most mobile apps fail not because of UI โ but because of weak backend logic and poor system design. That's where my background becomes a strength.
I build Flutter, native iOS (Swift/SwiftUI), and Android (Kotlin/Java) apps that integrate with secure backends, REST APIs, and admin dashboards โ making your app the execution layer of a complete product, not just a standalone front end.
โ Flutter โ cross-platform iOS & Android from a single codebase
โ Native iOS โ Swift, SwiftUI, Xcode, App Store deployment
โ Native Android โ Kotlin, Java, Google Play deployment
โ Startup MVPs โ validate your idea fast
โ Business & internal apps with real workflows
โ Customer-facing production-ready apps
โ Firebase, Supabase, Node.js & Laravel backend integration
โ Push notifications, payments (Stripe, in-app purchases), maps & more
โ App Store & Google Play submission & optimization
โ Clean, scalable architecture built for long-term growth
๐ Web Development & Design
I'm also a full-stack web developer with deep expertise across modern web technologies โ delivering fast, secure, and visually compelling websites that rank on Google and convert visitors into customers.
My web stack includes:
WordPress โ custom themes, plugins, WooCommerce, e-commerce migrations
Laravel & PHP โ robust backend systems, custom web applications
React.js โ dynamic, component-driven frontend development
Webflow โ pixel-perfect no-code/low-code builds with complex interactions
HTML, CSS, JavaScript โ clean, standards-compliant code across every project
โ Website cloning, redesigns & brand refreshes
โ E-commerce stores (WooCommerce, Shopify migration)
โ SEO-optimized, mobile-responsive layouts
โ Speed optimization & Core Web Vitals improvement
โ Complex Webflow features & custom interactions
โ API integrations & third-party service connections
๐ฏ What You Get Working With Me
๐ฆ Clean, maintainable code โ easy to hand off or scale
๐๏ธ Scalable architecture that grows with your business
๐ Clear milestones, realistic timelines, zero surprises
๐ SEO best practices built into every web project
๐ฒ App Store & Play Store optimization (ASO)
๐ค A product-focused partner โ not just a task executor
๐ฅ Industries I've Served
E-commerce โข SaaS โข Healthcare โข Real Estate โข Education โข Hospitality โข Fintech โข Retail
Whether you need a Flutter app that scales, a native iOS or Android app, a WordPress site that ranks, or a complete digital product from idea to launch โ
Let's build something that actually works in the real world. LET'S TALK! ๐
REST API
Flutter
Dart
Mobile App Development
Mobile App Design
iOS Development
Android App
In-App Advertising
AI App Development
App Development
Firebase
User Authentication
Payment Gateway Integration
App Design
In-App Subscription
Louise L.
Pembroke Pines, Florida
$100/hr
4.9
73 jobs
Twelve years writing code, two of them running product at MotionArray, where I led the team through its acquisition by Artlist in 2020. I build the thing, I know why the business wants it built, and when the work outgrows one person I have 30 engineers behind me. Most profiles here offer one of those three.
What I do hands-on
Frontend and full-stack in Angular, Vue, React, Next, Nuxt and Capacitor, with Node, Laravel, PHP and C# behind it. Shipped and maintained bikeflights, skilltrakker and myhrconfidant . Comfortable in codebases somebody else wrote and abandoned, which is most of what I get asked for.
AI, specifically
I'm a founding engineer at BuildBetter.ai, an AI product platform used by B2B teams that turns call recordings, tickets and support conversations into structured, cited deliverables. The work is the unglamorous part of shipping AI: retrieval over a company's own documents so answers are grounded instead of plausible, structured extraction from messy input, and the evaluation and cost work that decides whether a feature survives real usage.
Most products don't need a model, they need the right context reaching one. I'll tell you which you're dealing with before you spend money finding out.
The team behind me
I founded and run Roraima Devs, a U.S. LLC with 30+ engineers across the U.S., Colombia, Argentina, Venezuela and the Dominican Republic. 15+ clients, many with us 3+ years, 9 years on Upwork, 6 years as a U.S. company. Reviews under Roraima Devs on Trustpilot.
What that means for you: I take the work I can do well myself, and when a project needs frontend, backend, mobile and DevOps moving at once, I can staff it in parallel instead of stretching one timeline into six months. You decide which shape you want, and you always know exactly who is touching your code before it happens. Larger scopes can run through the agency contract if that suits you better.
How I work
I ask questions before estimating. If your idea has a cheaper path than the one you arrived with, I'll say so on the first call. If I'm not the right fit, I'll say that too.
Start with a 30-minute call and we'll look at what you have.
PHP
Node.js
JavaScript
Laravel
ASP.NET
React
Vue.js
AI Bot
WordPress
PostgreSQL
Oracle
Software Development
Mobile App Development
Angular
MySQL
Waqas A.
Frederick, Maryland
$25/hr
5.0
8 jobs
Top Rated Plus Full Stack Developer with 9+ years of experience building scalable SaaS platforms, mobile apps, and AI-powered solutions. I deliver production-ready web and mobile applications from concept to deployment.
I help startups and businesses launch and scale modern applications that don't just work, they grow with them. Whether you need a full-stack web platform, cross-mobile app, or AI automation system, I own the entire development lifecycle.
โ๏ธ What I Build:
โข SaaS Platforms โ Multi-tenant architectures, subscription systems, admin dashboards
โข Mobile Apps โ React Native & Expo for iOS/Android with offline support and push notifications
โข Web Applications โ Next.js frontends with Node.js backends, REST/GraphQL APIs
โข AI Integration โ OpenAI/Claude integrations, workflow automation, document processing
โข E-commerce & Payments โ Stripe, PayPal, payment gateways, secure transactions
โ๏ธ Technical Expertise:
โข Frontend: React, Next.js, TypeScript, Tailwind CSS, Expo
โข Backend: Node.js, Laravel, Express.js, REST/GraphQL APIs
โข Mobile: React Native, Expo, iOS/Android deployment
โข Database: PostgreSQL, MongoDB, Firebase, Supabase
โข Cloud & DevOps: AWS, Vercel, Docker, CI/CD pipelines
โ๏ธ Why Work With Me:
โข Top Rated Plus with 100% Job Success Score
โข 9+ years of production-grade development experience
โข Full ownership โ design to deployment, no handoffs
โข Clear communication โ weekly updates, transparent timelines
โข Fast turnaround โ MVPs in weeks, not months
๐ก Free Consultation: I offer a free 30-minute discovery call to discuss your project scope, technical approach, and timeline. Let's turn your idea into a scalable product.
Ready to build? Click "Hire Now" or send me an invitation to chat.
REST API
React Native
Mobile App Development
Web Application Development
Next.js
Full-Stack Development
React
Node.js
TypeScript
JavaScript
Firebase
API Integration
Tailwind CSS
PostgreSQL
Amazon Web Services
iOS Development
iOS
Android App Development
Push Notifications
Laravel
Eric M.
Castle Rock, Colorado
$100/hr
4.9
169 jobs
I solve tech problems that don't have obvious solutions. I work in the land of "where do we even start," "I have this idea but I don't know what to do with it," and more commonly the past few years "I have this plan from an AI, will it work, how do I actually build it?" If you've had those experiences, send me a message.
In the past 15 years I've solved data problems, automation problems, pipeline problems, scaling problems. I've solved government databases like EDGAR or SBA being insufficient, I've solved non-profit workflows being inefficient. I've solved "what kind of orchid is this?" and "how many people are watching our content across 4 social media platforms?"
I can help you ideate on why a solution is good and how it scales, pitfalls to avoid, caveats, tradeoffs. I can be a stand-in CTO who makes tech decisions for a special project. I can solve a single piece of your pipeline or manifest the entire idea into something functional, measurable, and scalable.
In 15 years I've wired up thousands of API integrations, automations, and data pipelines. I've been using AI the past few years where it makes sense and keeping the human in the loop where it doesn't. I can help you figure that out too for your business or idea.
API Development
API Integration
Automation
Python
JavaScript
Data Scraping
Web Scraping
Data Engineering
Amazon Web Services
Cloudflare
Generative AI
Startup Consulting
Software Architecture & Design
IT Consultation
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