๐ ๐๐๐ง๐ข๐จ๐ซ ๐ ๐ฎ๐ฅ๐ฅ ๐๐ญ๐๐๐ค ๐๐๐ฏ๐๐ฅ๐จ๐ฉ๐๐ซ | ๐๐+ ๐๐๐๐ซ๐ฌ ๐จ๐ ๐๐ฑ๐ฉ๐๐ซ๐ข๐๐ง๐๐ | ๐๐+ ๐๐ฎ๐๐๐๐ฌ๐ฌ๐๐ฎ๐ฅ ๐๐ซ๐จ๐ฃ๐๐๐ญ๐ฌ
I build ๐๐ฎ๐ฅ๐ฅ-๐ฌ๐ญ๐๐๐ค ๐ฐ๐๐ ๐๐ฉ๐ฉ๐ฅ๐ข๐๐๐ญ๐ข๐จ๐ง๐ฌ ๐๐ง๐ ๐๐-๐ฉ๐จ๐ฐ๐๐ซ๐๐ ๐ฉ๐ซ๐จ๐๐ฎ๐๐ญ๐ฌ with a core focus on architecting APIs and backend services, connecting third-party systems, delivering React applications and integrating AI capabilities. I thrive on challenges and enjoy building apps that are not only powerful but also intuitive and fun to use.
To kick things off, I offer a ๐ ๐๐๐ ๐๐-๐ฆ๐ข๐ง๐ฎ๐ญ๐ ๐ญ๐๐๐ก ๐๐จ๐ง๐ฌ๐ฎ๐ฅ๐ญ๐๐ญ๐ข๐จ๐ง where we can explore your project goals and define the best path forward.
โ ๐๐๐๐ค๐๐ง๐: โ PHP: Laravel, Yii2, Symfony, Zend, CakePHP, CodeIgniter
โ Node.js: Express, Nest.js
โ Python: Django
โ Databases: MySQL, PostgreSQL, DynamoDB, MongoDB
โ API Development: REST, GraphQL, WebSockets
โ Cloud: AWS, Google Cloud, Azure, Docker
โ ๐ ๐ซ๐จ๐ง๐ญ๐๐ง๐: โ JavaScript: React.js, Next.js, Nuxt.js, Vue.js, Angular.js
โ TypeScript, UI Libraries: Redux, Material UI, Bootstrap, Tailwind
โ ๐ ๐ฎ๐ฅ๐ฅ ๐๐ญ๐๐๐ค: โ Web3 and OpenAI integrations
โ API & Payment Gateway integrations
โ ๐๐๐ & ๐๐๐: โ WordPress: Custom themes & plugins, Elementor
โ Progressive Web App (PWA) development
โ ๐๐๐ฌ๐ค๐ญ๐จ๐ฉ: โ Python, JavaScript/TypeScript
๐๐๐๐๐ง๐ญ ๐๐ซ๐จ๐ฃ๐๐๐ญ๐ฌ:
โค PuzzleTrip โ Aggregator for rental and tour services (cars, yachts, custom trips)
โค Moby โ AI-powered hospitality platform automating guest communication and customer support
โค ArmRoom โ Dating app for connecting people across cultures
I'm here to help tackle technical challenges and build reliable, high-impact digital products.
Letโs make it happen!
JavaScript
Laravel
AngularJS
PHP
Web Application
React Native
React
Python
Node.js
Flutter
Next.js
WordPress
Symfony
Vue.js
Full-Stack Development
AI Development
Christine T.
Los Angeles, California
$68/hr
4.8
140 jobs
๐ฃ FREE technical consultation (details below) ๐ป Proud UC Berkeley graduate (Applied Mathematics & Economics) and an entrepreneurial, reliable full-stack software developer with broad expertise across modern technologies (listed below).
๐ช๐ช๐ช
With experience as:
โข Full-Stack Team Lead at Camping World, a publicly traded company
โข Lead Technical Teaching Assistant at Hack Reactor, a leading software engineering bootcamp
โข Founder of Atini Studio, a high-performance software development agency
With years of experience working with clients and leading engineering teams, I prioritize accountability, clear communication, and efficient execution.
๐๐๐
Iโm the founder of Atini Studio, a vibrant software development agency and a team I like to call software doctors: highly skilled engineers and creative UI/UX designers who diagnose, fix, and elevate digital products.
โจ๏ธโจ๏ธโจ๏ธ
What I help clients with:
๐ MVP development for startups
๐ Full-stack web applications
๐ Cross-platform mobile apps
๐ AI-powered features & integrations
๐ Clean implementation from Figma to production
๐ API integrations (Stripe, OpenAI, Google, Zoom, etc.)
๐ Performance optimization
๐ Technical architecture planning
๐ Product roadmap & scaling strategy
We also leverage AI internally to accelerate development workflows and improve efficiency, so you get faster delivery without sacrificing quality.
๐งฉ Complimentary Technical Consultation
Not sure how to move forward with your product? I can help you clarify:
โข The right tech stack
โข MVP scope
โข Timeline and budget expectations
โข System architecture decisions
โข Whether your current product is built correctly
I offer a complimentary strategy session to help you create a clear and practical execution plan.
๐ป Tech Stack:
โข Front End
JavaScript | TypeScript | React | Next.js | React-Native | Angular | Vue.js | Tailwind CSS
โข Back End
Node.js | NestJS | Python | Django | PostgreSQL | MongoDB | MySQL | ORM | GraphQL
โข API Integrations
ChatGPT / OpenAI | Stripe | Google | Zoom | and more...
โข DevOps
Amazon Web Services (AWS) | Firebase/GCP(Google Cloud Platform) | Azure | Docker
โข Testing
Jest | Mocha | TDD
โข Developer Tools
Git | npm | Webpack | Babel | Agile Methodology | Nginx
โข Design
Adobe XD | Figma
JavaScript
Node.js
React
AWS Amplify
CSS 3
RESTful API
React Native
Firebase
Angular
Amazon EC2
Database
WordPress
ChatGPT
AI Development
AWS Development
Nad A.
Elgin, Illinois
$20/hr
5.0
4 jobs
I build production-grade SaaS platforms, AI systems, AI agents, and full-stack web applications from architecture to deployment. With 7+ years of experience and 57+ delivered projects, I've worked as a Full Stack Developer, AI Engineer, and SaaS Developer for startups and growing businesses that need software built to scale, not just to demo.
Why should you hire me as your Full Stack Developer & AI Engineer?
๐ 7+ years of experience building web applications, SaaS platforms, and scalable backend systems with React, Next.js, Node.js, and Python
โ 25+ AI systems delivered, including RAG pipelines, LLM-powered applications, AI chatbots, AI agents, and AI voice agents using Retell AI, Voiceflow, LlamaIndex, Pinecone, and OpenAI
โ Full Stack Developer experienced in building SaaS dashboards, CRMs, admin panels, customer portals, and multi-tenant platforms with NestJS, Node.js, Express, React, and Next.js
โ AI Engineer specializing in RAG and NLP systems, vector search, semantic retrieval, AI automation, and voice/text agents using ElevenLabs, AssemblyAI, OpenAI, and Claude APIs
โ AI Voice Agent development for lead qualification, customer support, appointment scheduling, inbound/outbound calls, and business workflow automation
โ Backend Developer experienced in building secure, scalable RESTful APIs, GraphQL APIs, database architectures, authentication systems, third-party integrations, and business logic
โ End-to-end ownership: system architecture, database design, API integration, AI integration, frontend development, backend development, cloud deployment (AWS/GCP), and post-launch support
My stack:
โ๏ธ Frontend React, Next.js, React Native, Vue.js, Angular, Flutter, HTML, HTML5, CSS, CSS3, Bootstrap, Tailwind CSS, jQuery, Responsive Design, Web Design, Web Application Development
โ๏ธ Backend Node.js, Express.js, NestJS, Python, Django, FastAPI, PHP, Laravel, CodeIgniter, RESTful APIs, GraphQL, API Integration, Software Architecture & Design
โ๏ธ Database PostgreSQL, MySQL, MongoDB, SQL, Redis, Supabase, Firebase, Database Architecture
โ๏ธ AI/LLM OpenAI (GPT), ChatGPT, Claude, Gemini, LangChain, LangGraph, Vercel AI SDK, MCP, CrewAI, LlamaIndex, Pinecone, Retell AI, Voiceflow, ElevenLabs, AssemblyAI, Artificial Intelligence, Machine Learning, NLP, Neural Networks, Computer Vision, Data Science, Bot Development, AI Chatbots, AI Agents, AI Automation
โ๏ธ AI-Assisted Dev Cursor, Claude Code, Lovable, Bolt.new, v0.dev, Replit Agent, GitHub Copilot
โ๏ธ Automation & Integrations Make, n8n, Zapier, HubSpot, Salesforce, Airtable, Slack, Twilio, WhatsApp Business API, Webhooks
โ๏ธ Infrastructure AWS, GCP, Azure, Docker, Kubernetes, CI/CD, GitHub Actions, Serverless Architecture
โ๏ธ Security & Compliance OAuth, JWT, IAM, RBAC, HIPAA, HL7, FHIR
If you're looking for a Full Stack Developer, AI Engineer, Backend Developer, SaaS Developer, or AI Agent Developer who can take your product from concept to a stable, scalable production system, let's talk about what you're building.
React Developer, React Native, React js, React Native Developer, React Node, React Redux, React Js Developer, React Native expert, React angular, React Front end, Full Stack Developer, Full Stack Web Developer, Full Stack Wordpress Developer, Full Stack Web, Full Stack Development, Full Stack Php, Full Stack php Developer, Full Stack WordPress, Full Stack Web Development, Python Full Stack Developer, Python full stack developer Django, Senior full stack developer. Full-Stack Development React JavaScript HTML5 CSS 3 CSS PHP Bootstrap Vue.js HTML WordPress jQuery Python Software Architecture & Design Full-Stack Development Laravel MySQL Software Development Database Architecture API Web Application API Integration Tailwind CSS CodeIgniter SQL Angular RESTful API MongoDB React Native TypeScript Node.js ExpressJS Angular SQL Database Back-End Development AI Chatbot Chatbot Development ManyChat Chatbot Artificial Intelligence Machine Learning Neural Network Computer Vision MySQL Bot Development Natural Language Processing Data Science React PHP Node.js ExpressJS Laravel PostgreSQL SQL MySQL MongoDB Git Angular RESTful API API Integration Database Backend Development Express MongoDB TypeScript ExpressJS React Node.js MySQL MongoDB Vue.js Angular PostgreSQL Redis Firebase Supabase
JavaScript
Full-Stack Development
Web Development
Artificial Intelligence
Web Application
AI App Development
AI Agent Development
AI Chatbot
Natural Language Processing
Python
PostgreSQL
MongoDB
React
Next.js
TypeScript
Node.js
AI Development
Web Application Development
Arsalan B.
Birmingham, Alabama
$44/hr
4.9
25 jobs
๐ฏ๐๐ ๐๐๐๐ ๐๐๐๐ ๐๐ ๐๐๐๐ ๐๐๐๐ ๐๐๐๐๐๐ ๐๐ ๐๐๐๐๐๐๐๐๐๐ ๐๐๐๐๐๐๐๐ ๐๐๐ ๐๐๐๐๐๐๐ ๐๐๐ ๐?
Most SaaS teams don't need more developers. They need someone who can take ownership of a feature and actually ship it.
I build and improve production JavaScript applications using React, Node.js, TypeScript, Angular, PostgreSQL, and MongoDB from frontend screens to APIs and databases.
A frontend developer can build the UI. A backend developer can build the API. I handle the whole feature so you don't have to coordinate three different people.
๐ ๐ฐ๐ฎ๐ป ๐ท๐ผ๐ถ๐ป ๐ฎ๐ป ๐ฒ๐ ๐ถ๐๐๐ถ๐ป๐ด ๐ฐ๐ผ๐ฑ๐ฒ๐ฏ๐ฎ๐๐ฒ, ๐๐ป๐ฑ๐ฒ๐ฟ๐๐๐ฎ๐ป๐ฑ ๐ต๐ผ๐ ๐ถ๐ ๐๐ผ๐ฟ๐ธ๐, ๐ฎ๐ป๐ฑ ๐๐๐ฎ๐ฟ๐ ๐๐ต๐ถ๐ฝ๐ฝ๐ถ๐ป๐ด ๐๐ถ๐๐ต๐ผ๐๐ ๐ฟ๐ฒ๐๐ฟ๐ถ๐๐ถ๐ป๐ด ๐ฒ๐๐ฒ๐ฟ๐๐๐ต๐ถ๐ป๐ด.
Build React / Next.js dashboards and SaaS interfaces
Develop Node.js / Express APIs and backend services
Add authentication, roles, permissions, payments, and integrations
Work with PostgreSQL, MongoDB, REST APIs, GraphQL, and WebSockets
Debug, refactor, and extend existing JavaScript applications
Iโve worked on SaaS products, marketplaces, HR platforms, dashboards, booking systems, and data-heavy business applications using JavaScript across the full stack.
๐ฐ๐ ๐๐๐๐ ๐๐๐๐ ๐๐๐ ๐๐ ๐๐๐๐๐๐ ๐ ๐๐๐๐, ๐ฐ ๐ ๐๐โ๐ ๐๐๐๐ ๐๐ ๐๐๐๐ ๐๐ ๐ ๐๐๐ ๐๐ ๐๐๐๐ ๐๐ ๐๐๐๐๐๐.
You keep your current product, architecture, and users. I focus on fixing what is slowing you down and shipping the next feature properly.
Send me your current stack and the feature you need built.
Iโll tell you how Iโd approach it before we star
ExpressJS
JavaScript
Microsoft SQL Server
MySQL
Microservice
React
Amazon Web Services
Node.js
C#
Angular
GraphQL
Agile Software Development
CI/CD
TypeScript
RESTful API
API Integration
SQL Server Integration Services
SaaS Development
Microsoft Azure
Erik N.
Palm Desert, California
$100/hr
5.0
28 jobs
I'm a principle software engineer with over a decade of experience designing, developing, and deploying complex web applications and APIs. I have deep expertise in front-end, back-end, and DevOps, and love working across the full stack. Lately I've been working more in the AI world, setting up pipelines, training models, creating harnesses, agents and more!
Key skills I bring to the table:
- Front-End Development: React, Next.js, Svelte, Vue.js, Nuxt.js, TypeScript, Material UI
- Back-End & API Development: Node.js (Express, Nest), Python (Flask, Django, FastAPI), PHP (Laravel), Ruby on Rails
- Cloud & DevOps: AWS, Azure, GCP, Docker, Kubernetes, CI/CD, TDD, Agile methodologies
- Data & Machine Learning: Power BI, Tableau, TensorFlow, PyTorch, scikit-learn
- Database Management: MySQL, PostgreSQL, MongoDB, DynamoDB, Supabase
- Design & Copywriting
Recent client work highlights:
-Turning VibeCoded MVPs (i.e. Lovable, Base44, Replit) into fully functioning apps and websites
-Fractional/Part-time CTO
-Mobile Apps (React Native)
-AI training, deployment and integrations
- Google Chrome Extensions
- Enterprise Next.js website (App Router)
- Crypto Payment rails
- Led teams of international developers
I look forward to the opportunity to bring my expertise and passion to your project. Let's hop on a call and chat about how I can help!
ExpressJS
JavaScript
Python
React
Node.js
Firebase
HTML
CSS
MongoDB
TypeScript
Next.js
GitHub
API Development
Jest
Front-End Development
Fakhar K.
North Babylon, New York
$25/hr
5.0
1 jobs
๐ ๐๐๐ ๐ฉ๐ซ๐จ๐ฆ๐จ๐ญ๐ข๐จ๐ง๐๐ฅ ๐ฏ๐ข๐๐๐จ ๐๐ ๐ ๐๐๐ ๐๐ก๐ซ๐๐.๐ฃ๐ฌ ๐ข๐ง๐ญ๐๐ ๐ซ๐๐ญ๐ข๐จ๐ง, ๐ฒ๐จ๐ฎ๐ซ ๐๐ก๐จ๐ข๐๐.
A good web application must do more than look polished. It should load quickly, handle data correctly, remain stable as features are added, and stay understandable for anyone working on the code later.
For the past 5+ years, I have built and maintained full-stack web applications using JavaScript, React, Next.js, Node.js, Express.js, MongoDB, MySQL, and Three.js. I work across the complete development cycle, from planning application structure and database flow to building front-end interfaces, developing APIs, creating interactive 3D web experiences, testing features, and preparing applications for deployment.
๐๐ฒ ๐๐จ๐ซ๐ ๐๐ฑ๐ฉ๐๐ซ๐ญ๐ข๐ฌ๐ ๐ข๐ง๐๐ฅ๐ฎ๐๐๐ฌ:
โช๏ธ Full-stack JavaScript development
โช๏ธ React and Next.js front-end development
โช๏ธ Node.js and Express.js back-end development
โช๏ธ MERN stack web applications
โช๏ธ Three.js and interactive 3D web development
โช๏ธ WebGL-based 3D experiences and animations
โช๏ธ 3D product visualization for websites
โช๏ธ MongoDB and MySQL database integration
โช๏ธ REST API development and third-party API integration
โช๏ธ User authentication and role-based access
โช๏ธ Responsive dashboards, portals, and web applications
โช๏ธ Feature development for existing applications
โช๏ธ Bug fixing, code refactoring, and performance optimization
โช๏ธ Git-based version control
I can also integrate Three.js into React and Next.js applications to create interactive 3D sections, product showcases, animated website experiences, 3D landing pages, and custom WebGL-based interfaces while keeping performance and responsiveness in mind.
Before development begins, I review the required features, data flow, user roles, technical requirements, and possible edge cases. For Three.js projects, I also consider model complexity, animation requirements, browser performance, loading speed, and mobile responsiveness before implementation.
Depending on the project, I can deliver a complete full-stack web application, build an individual front-end or back-end component, develop an interactive Three.js experience, integrate APIs, create database structures, or improve an existing React, Next.js, Node.js, MERN, or Three.js application.
You will receive readable code, an organized project structure, tested functionality, setup documentation, and regular progress updates throughout development.
If you are building a new web application, an interactive 3D website, a Three.js product experience, or improving an existing JavaScript application, send me your project scope, designs, 3D assets, or repository overview. I will review the technical requirements and outline the most practical next steps for development.
ExpressJS
JavaScript
Web Application
Web Development
Full-Stack Development
Next.js
Node.js
TypeScript
MongoDB
PostgreSQL
API Integration
Front-End Development
Back-End Development
Python
Django
React Native
Three.js
MERN Stack
.NET Framework
Microsoft Azure
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