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👋Hey Hey — 𝘄𝗮𝗶𝘁❗ You’re absolutely in the right place if you want results in development. With more than 7 years of building full-stack applications
I help startups, founders, and growing companies turn ideas into revenue-driving web apps, MVPs, and SaaS platforms using modern technologies like JavaScript, Typescript, React, Node.js, Next.js, Python, OpenAI, and MongoDB.
If you want clean architecture, real impact, and on-time results, 🙋♂️I’m your 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿.
Delivers fast, scalable, and AI-powered digital products without headaches.
I’ve building products that don’t just work, they scale, convert, and deliver business value.
⭐𝗛𝗼𝘄 𝗜 𝗚𝗶𝘃𝗲 𝗜𝗺𝗽𝗼𝗿𝘁𝗮𝗻𝗰𝗲 𝘁𝗼 𝗬𝗼𝘂𝗿 𝗣𝗿𝗼𝗷𝗲𝗰𝘁
- We sit together and define the core features for development that matter so your Project launches faster, costs less, and delivers what investors want
- Focus on delivering real value, not just completing tasks. Your project’s success is my priority
- Do proper research and development (R&D) to understand your needs and what competitors are doing
- Share unique or better feature ideas whenever I find something that can improve your product
- Treat your project like my own, ensuring quality, scalability, and a strong user experience
- Clear communication and consistent, so you always know what’s happening
- Stay flexible and collaborative, adjusting the work based on your feedback and vision
⭐𝗪𝗵𝘆 𝗜 𝗚𝗶𝘃𝗲 𝗜𝗺𝗽𝗼𝗿𝘁𝗮𝗻𝗰𝗲 𝘁𝗼 𝗬𝗼𝘂𝗿 𝗣𝗿𝗼𝗷𝗲𝗰𝘁
- Your satisfaction helps grow my reputation and profile goodwill
- Your Feedback and ratings give new clients confidence and trust in working with me
- I always give my best, so you truly get value from your investment
- You can offer long-term opportunities, rehire me, and even recommend me to others
- Working with you improves my experience and skills, and helps me build strong case studies
- And honestly…when you’re happy, my wallet smiles too!😆
I don’t just know these technologies — I use them to build fast, revenue-generating products for founders and growing businesses.
⭐ Frontend Development That Converts Users Into Customers
React.js, Next.js, Vue.js, Angular, Tailwind, HTML, CSS, Bootstrap
➡️ Clean UI, fast interactions, and interfaces users actually enjoy.
⭐ Backend Engineering Built for Scale
Node.js, Express.js, Next.js, NestJS, Python, OpenAI, Java
➡️ Stable, secure, high-performance backend systems that never slow you down
⭐ APIs & Integrations That Make Your Product Smarter
REST APIs, GraphQL, OAuth, OpenAI LangChain
➡️ AI integration, real-time features, and AI-powered functionality
⭐ Databases Designed for High Growth
MongoDB, PostgreSQL, MySQL, Firebase, Supabase, Prisma
➡️ Optimized data structures that stay fast even with thousands of users
⭐ DevOps & Cloud for Smooth Deployment
Docker, CI/CD, AWS, Azure, Google Cloud
➡️ Zero-downtime deployments, strong security, and future-proof setups
⭐ AI & Automation That Give Your Product a Competitive Edge
Chatbots, Generative AI, AI Agents, NLP, LLM Tool
➡️ Smarter workflows, intelligent assistants, and automated operations
⭐ AI-Powered Vibe Coding & Rapid Product Development
Cursor, Claude, Lovable, Replit AI, GitHub Copilot, Bolt.new,
➡️ Experienced in modern AI coding tools, helping to build faster and smarter, turning work that normally takes weeks into hours.
⭐ Testing & Performance Optimization for Reliability
Debugging, Performance Tuning, Unit/Integration Tests
➡️ Your product stays fast, stable, and bug-free, with no surprises
⭐𝗪𝗵𝘆 𝗧𝗿𝘂𝘀𝘁 𝗠𝗲
🔥 High-quality, future-ready code that grows with your project
🔥 Fast communication & daily updates, always know what’s happening, every step
🔥 Start immediately (your time zone friendly)
🔥 Long-term partnerships aim to build trust and lasting collaborations
🔥 Clean documentation deployment support. Everything’s delivered clearly, making it easy to manage
If you want an MVP, SaaS, or AI-powered platform that actually performs —𝗦𝗲𝗻𝗱 𝗮 𝗺𝗲𝘀𝘀𝗮𝗴𝗲. I’ll respond at the earliest to discuss your ideas and project, and 𝘄𝗲 𝗰𝗮𝗻 𝘀𝘁𝗮𝗿𝘁 𝘄𝗼𝗿𝗸𝗶𝗻𝗴 𝗼𝗻 𝗶𝘁 𝗿𝗶𝗴𝗵𝘁 𝗮𝘄𝗮𝘆.
Let’s create something exceptional together.
𝗞𝗲𝘆𝘄𝗼𝗿𝗱
Full-Stack Development Front-End Back-End Development Saas Expertise Full-Stack Developer MVP Developer Skills JavaScript TypeScript React.js web development, Next.js Node.js Full-Stack Application Development Front-End Developer Experience Back-End Developer OAuth Tailwind CSS Vite JQuery REST APIs GraphQL website development OAuth CRM JavaScript developer OpenAI AI AI Integration AI-Driven Solutions JavaScript Developer TypeScript Developer React developer MERN stack Developer Node.js Developer Next.js Developer LLM Saas MVP platforms LLM-Based AI Chatbots Integration Automation MongoDB PostgreSQL MySQL MERN Development Firebase Supabase SaaS MVP Development Stripe Integration Git Vibe Coding, Low-Code & No-Code Developme
Muhammad A.
has worked
.
$35/hr
100%
Job Success
$200K+ earned
Available now
Offers consultations
Start of list.
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Certified Webflow Partner and front-end developer specializing in pixel-perfect Figma to Webflow builds, Webflow CMS architecture, Webflow eCommerce, and performance-first web design. I work with startups, agencies, and scaling businesses who need a Webflow developer who takes full ownership from design handoff through to live site, SEO setup, and integrations.
🏆 TOP RATED PLUS on Upwork
✅ Certified Webflow Partner - 8+ years of Webflow development experience
🏅 100% client satisfaction across every Webflow project delivered
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SERVICES I PROVIDE AS A WEBFLOW DEVELOPER
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▸ Webflow Development - full Webflow builds with Finsweet Client-First for modular, scalable architecture
▸ Figma to Webflow - precise, component-based translation with clean naming, responsive across all breakpoints, pixel-perfect to the original design
▸ Webflow CMS - blogs, services, case studies, resource libraries, team directories, and dynamic content collections
▸ Webflow Interactions - GSAP animations, Lottie, scroll-trigger effects, and micro-interactions
▸ Webflow eCommerce - product catalogs, checkout UX, and custom store features
▸ Webflow Landing Pages - CRO-driven Webflow landing page builds with analytics and A/B testing integration
▸ Webflow SEO and Performance - Core Web Vitals, Cloudflare CDN, schema markup, metadata, image optimization, and Lighthouse audits
▸ Webflow Integrations - Zapier, Make, Stripe, HubSpot, Airtable, Typeform, Google Analytics, GoHighLevel
As a Certified Webflow Partner I build every Webflow site on Finsweet Client-First structure so the codebase stays clean, scalable, and easy to hand off to your internal team or another Webflow developer. Every Figma to Webflow translation I deliver is component-based with consistent naming, responsive across breakpoints, and polished to match the original design at pixel level.
For Webflow projects that need to perform in search, I handle the full SEO setup including metadata, Open Graph, schema markup, Cloudflare configuration, image optimization, and Lighthouse audits so your Webflow site ranks and loads fast from day one.
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WHAT CLIENTS SAY
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⭐⭐⭐⭐⭐ "Gone through a bit of a nightmare before finding Thiago. Two developers on Upwork, both with strong reviews, couldn't get any of the tasks done. Thiago was completely different." - verified Upwork client
⭐⭐⭐⭐⭐ "I can't say enough good things! He went above and beyond throughout the project. Communication was fantastic, always quick to respond and super helpful. Truly amazing at what he does!" - verified Upwork client
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WHY CLIENTS CHOOSE ME AS THEIR WEBFLOW DEVELOPER
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▸ Certified Webflow Partner - verified Webflow development, Webflow CMS, Webflow Interactions, and Webflow eCommerce expertise
▸ Figma to Webflow specialist - pixel-perfect builds, component-based architecture, Finsweet Client-First on every project
▸ Performance and Webflow SEO built in from the start - not bolted on at the end
▸ Clear communication with teams and agencies - fast to respond, flexible on scope, no handholding required
▸ Every Webflow project ships with organized CMS collections, documented component structure, and responsive layout tested across all breakpoints and browsers
▸ Post-launch support available - Webflow bug fixes, CMS updates, feature additions, and Cloudflare configuration audits
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ADDITIONAL SERVICES
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▸ Web Design: Squarespace, Wix, and Framer builds and redesigns
▸ WordPress and Shopify: CMS development, WooCommerce, and Shopify store setup
▸ Front-End Development: React, Vue, CSS3, JavaScript, Node.js, and PHP
▸ Ongoing Webflow support: bug fixes, maintenance, CMS updates, and feature additions
Whether you need a complete Figma to Webflow build, a Webflow CMS overhaul, a performance and SEO audit, or a quick Webflow fix - send me a message and let us discuss your project.
Thiago C.
has worked
.
Associated with
FutureForge
$300K+
earned
$20/hr
100%
Job Success
$50K+ earned
Available now
Offers consultations
Start of list.
End of list.
⭐️⭐️⭐️ 14+ Years of Excellence | 6000+ Projects Delivered Across 90+ Countries ⭐️⭐️⭐️
🚀 Backed by Award-Winning Global Agency – Weavers Web Solutions Private Limited🚀
⭐️⭐️⭐️ Full-Cycle Expertise: Mobile Apps, Web Platforms, eCommerce, AI, IoT, Blockchain ⭐️⭐️⭐️
💯 Fast Response Time – Get Replies Within 30 Minutes 24X7
✅ Unlimited Revisions on Design & Client Support
💻 Strong Track Record Serving Startups, SMEs & Enterprises Worldwide
⌚ Delivering On-Time, On-Budget, and Future-Ready Solutions
🚀 Partnering for Long-Term Success With Reliable Post-Launch Support
What I Can Help You Build:
⭐️ Web Application Development
✅ WordPress Website Development
✅ E-Commerce website development
✅ Magento Website Development
✅ Magento Enterprise
✅ WooCommerce Website Development
✅ Shopify Website Development
✅ Shopify Plus Development
✅ BigCommerce Development
✅ WIX Development
✅ Squarespace Development
✅ MEAN Stack Development
✅ Angular Application Development
✅ Node JS Development
✅ MERN Stack Development
✅ React JS Development
✅ Laravel Application Development
✅ Python (Django) Development
⭐️ Mobile Application Development
✅ Hybrid Application Development
✅ React Native Development
✅ Flutter Development
✅ FlutterFlow Development
✅ Native Application Development
✅ Swift
✅ Java
✅ Kotlin
I'm a Web and Mobile App Developer with over a decade of hands-on experience building custom digital solutions. Since 2013, I’ve successfully delivered more than 200 projects for startups, small businesses, and global teams — helping them launch, grow, and scale with clean, functional, and reliable technology.
My core strengths lie in full-stack development, UI/UX implementation, API integration, and building cross-platform apps that feel native and perform seamlessly. Whether it's a fast MVP, a polished mobile product, or a complex backend architecture, I bring a calm, focused approach to solving real-world problems through code.
I've worked across industries like e-commerce, healthcare, logistics, SaaS, fitness, food tech, and finance, always aiming to build user-first experiences backed by solid technical foundations. I’m comfortable working independently or as part of a team, and I value clear communication, quick iteration, and writing clean, maintainable code.
Nanda P.
has worked
.
Associated with
Weavers Web Solutions Private Limited
$200K+
earned
$10/hr
100%
Job Success
$85 earned
Start of list.
End of list.
I’m a 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 𝐖𝐞𝐛 & 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 with 2+ years of hands-on experience building scalable, responsive, and high-performance digital solutions.
I specialize in both 𝐌𝐄𝐑𝐍 (𝐌𝐨𝐧𝐠𝐨𝐃𝐁, 𝐄𝐱𝐩𝐫𝐞𝐬𝐬.𝐣𝐬, 𝐑𝐞𝐚𝐜𝐭, 𝐍𝐨𝐝𝐞.𝐣𝐬) and 𝐌𝐄𝐀𝐍 (𝐌𝐨𝐧𝐠𝐨𝐃𝐁, 𝐄𝐱𝐩𝐫𝐞𝐬𝐬.𝐣𝐬, 𝐀𝐧𝐠𝐮𝐥𝐚𝐫, 𝐍𝐨𝐝𝐞.𝐣𝐬) stacks for the web, and 𝐑𝐞𝐚𝐜𝐭 𝐍𝐚𝐭𝐢𝐯𝐞 & 𝐅𝐥𝐮𝐭𝐭𝐞𝐫 for cross-platform mobile app development delivering seamless experiences across devices.
💡 𝐇𝐨𝐰 𝐈 𝐂𝐚𝐧 𝐇𝐞𝐥𝐩 𝐘𝐨𝐮
✅ Build modern, responsive UIs with React, Angular, or Flutter
✅ Develop secure REST APIs using Node.js & Express.js
✅ Design & manage NoSQL databases with MongoDB
✅ Integrate APIs, authentication, and payment gateways
✅ Optimize apps for performance and scalability
✅ Deliver full-cycle solutions from web platforms to mobile apps
💼 𝐏𝐫𝐨𝐣𝐞𝐜𝐭𝐬 𝐈’𝐯𝐞 𝐃𝐞𝐥𝐢𝐯𝐞𝐫𝐞𝐝
🔹 Web Applications scalable and user-friendly business solutions
🔹 Mobile Apps cross-platform iOS & Android apps
🔹 E-commerce Platforms secure, high-performing online stores
🔹 Admin Dashboards data-driven control panels
🛠️ 𝐓𝐞𝐜𝐡 𝐒𝐭𝐚𝐜𝐤
React.js | Angular | Node.js | Express.js | MongoDB | React Native | Flutter | Tailwind CSS | Bootstrap | JWT | REST APIs | Git | Vercel | Netlify | Heroku
🤝 𝐖𝐡𝐲 𝐖𝐨𝐫𝐤 𝐖𝐢𝐭𝐡 𝐌𝐞
I focus on writing clean, maintainable code, clear communication, and timely delivery.
Whether it’s a quick project or long-term collaboration, I ensure your web or mobile solution aligns with your business goals and delivers measurable value.
💬 𝐋𝐞𝐭’𝐬 𝐃𝐢𝐬𝐜𝐮𝐬𝐬 𝐘𝐨𝐮𝐫 𝐏𝐫𝐨𝐣𝐞𝐜𝐭!
I’m available for both short-term and long-term projects.
Let’s build something great together!
𝐁𝐞𝐬𝐭 𝐑𝐞𝐠𝐚𝐫𝐝𝐬,
𝐀𝐥𝐢 𝐀𝐡𝐦𝐚𝐝
$30/hr
100%
Job Success
$100K+ earned
Available now
Start of list.
End of list.
TOP RATED PLUS - Top 3% Talent on Upwork
AI Product Engineer | Full Stack Architect | SaaS Development Specialist
I help startups, founders, and growing businesses build AI-powered products, modern SaaS platforms, and scalable web applications that solve real business problems.
Over the last 10+ years, I've worked with startups, agencies, and enterprise clients to design, architect, and develop high-performance applications using modern JavaScript technologies, cloud infrastructure, and the latest advancements in Artificial Intelligence.
Today, my primary focus is helping companies integrate AI into their products and workflows through Large Language Models (LLMs), AI Agents, Agentic Workflows, Retrieval-Augmented Generation (RAG), AI Automation, and intelligent business systems.
Whether you're building a new AI startup, modernizing an existing platform, or integrating AI capabilities into your current product, I can help you move from idea to production.
𝗪𝗵𝗮𝘁 𝗜 𝗖𝗮𝗻 𝗛𝗲𝗹𝗽 𝗬𝗼𝘂 𝗕𝘂𝗶𝗹𝗱:
✅ AI-Powered SaaS Applications
✅ AI Agents & Multi-Agent Systems
✅ OpenAI, Anthropic Claude & Gemini Integrations
✅ AI Chatbots & AI Assistants
✅ RAG (Retrieval-Augmented Generation) Systems
✅ AI Knowledge Bases
✅ AI Customer Support Platforms
✅ AI Workflow Automation
✅ AI Content Generation Platforms
✅ Custom GPT Applications
✅ Enterprise Web Applications
✅ Marketplace Platforms
✅ CRM & ERP Systems
✅ Internal Business Tools
✅ Dashboard & Analytics Platforms
✅ Real-Time Applications
✅ API Development & Integrations
✅ Cloud-Based SaaS Products
𝗔𝗜 & 𝗟𝗟𝗠 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲
• OpenAI GPT-4o / GPT-4
• Anthropic Claude
• Google Gemini
• LangChain
• LangGraph
• Vector Databases
• Pinecone
• Weaviate
• ChromaDB
• RAG Architectures
• AI Agents
• Agentic Workflows
• Prompt Engineering
• Function Calling
• AI Automation
• MCP Servers
• Semantic Search
• AI Copilots
• Document Intelligence Systems
𝗙𝗿𝗼𝗻𝘁𝗲𝗻𝗱
• React.js
• Next.js
• Angular
• TypeScript
• JavaScript
• Redux
• Tailwind CSS
• Material UI
• ShadCN
𝗕𝗮𝗰𝗸𝗲𝗻𝗱
• Node.js
• NestJS
• Express.js
• PHP
• Laravel
• CodeIgniter
• Python
𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲𝘀
• PostgreSQL
• MongoDB
• MySQL
• Redis
• Elasticsearch
𝗖𝗹𝗼𝘂𝗱 & 𝗗𝗲𝘃𝗢𝗽𝘀
• AWS
• Azure
• Google Cloud
• Docker
• Kubernetes
• CI/CD Pipelines
• Vercel
• DigitalOcean
Why clients hire me:
✔ Strong communication
✔ Product-first mindset
✔ Clean, scalable architecture
✔ AI + Full Stack expertise in one profile
✔ Startup-speed execution
✔ Long-term support and maintenance
If you're looking for someone who can not only write code but also help shape product decisions, architect scalable systems, and integrate modern AI capabilities into your business, let's connect.
I enjoy working on ambitious products and helping founders bring ideas to life.
Malik A.
has worked
.
$100/hr
100%
Job Success
$100K+ earned
Offers consultations
Start of list.
End of list.
I help founders to build SaaS, MVP and grow from 0 to first $10k MRR and more.
Also I develop Chrome Extensions, Adobe UXP, CEP extentions, AI agents, site scraping tools, integrate with Stripe using TypeScript, JavaScript, NodeJs, React, AWS Playwright and PHP
For the healthcare and fintech domain I use Java, Spring Boot
I am 13 years in a code. I am Ukrainian
I have my own IT products (SaaS, mobile app and Chrome Extension)
I know how to built software fast and be prepared for x10 scale
I don't care about the money, though it is an important part of it. If I don't like you idea/product I won't do it
Below is for Upwork search engine:
✅ (Domains): Logistics, Mobility, Travel, IT Security, Banking, HealthCare, RealEstate, CRM, LMS, EdTech, Automation
✅ (Backend) - JavaScript, TypeScript, NodeJs, Express, Nest, Java, Spring Boot, Spring MVC, Spring Data Jpa, Spring Data Quarkus, Mongo, Python, Django, Flask, Spring Security, Hibernate, Quartz API, Jersey, Jackson, Gson, Swagger, Http, Https, SOAP, REST, ActiveMQ, AWS EC2, AWS ECS, AWS S3, AWS Cognito, Lambda, SQS, Aurora, Event Bus, Cloudformation, Firebase, Tomcat, Glassfish, Jboss, Wildfly, Payara, Ant, Maven, PostgreSQL, MySQL, h2, Netsize, Datalex, Keycloak, Camunda, Kafka, Kubernetes, Docker, Docker Compose, Protobuf, gRPC, Chat GPT, Stripe, PayPal, Apple Pay, Google Play,
✅ (Something non-standard): DrawIO customization, Thales, Gemalto integration, Adobe Illustrator Extension, Jira Plugin, Confluence Plugin, Chrome Extension, Telegram Chatbot, WhatsApp Chatbot, Facebook Chatbot, Browser Automation Studio (BAS), RAG, Retrieval Augmented Generation, Adobe Developer, CEP Developer, UXP Developer, Photoshop Scripts, Photoshop Actions, PSJS, NIFI Apache Dashboard, Cursor IDE, lovable, create.xyz, Shopify Store, shopify developer
✅ (Frontend): HTML/CSS, JavaScript, JQuery, ReactJS, Vue JS, D3.js, npm, webpack, babel. plasmo
Volodymyr B.
has worked
.
$30/hr
100%
Job Success
$20K+ earned
Offers consultations
Start of list.
End of list.
Senior Java Fullstack Developer with 6+ years of experience building scalable, cloud-native enterprise systems using Spring Boot, React, Angular, Microservices, and AWS.
I specialize in:
- Java/Spring Boot backend development & REST API design
- Microservices architecture with Docker & Kubernetes
- Cloud deployment on AWS (EC2, S3, Lambda, RDS)
- Frontend development using React, Redux, Angular, TypeScript
- Database optimization (PostgreSQL, MySQL, MsSQL, Oracle, Sybase, MongoDB, Apache Solr, Redis, Elasticsearch, DynamoDB)
- Event-driven systems with Apache Kafka & RabbitMQ
- CI/CD pipelines with Jenkins, Maven & Git
Projects I've delivered include real-time analytics platforms, fintech payment systems, e-commerce backends, and enterprise SaaS applications — all built for high availability and performance at scale.
Top Rated Plus on Upwork (Top 3%) | 100% Job Success | Toptal Qualified (Top 3% Global Talent)
If you need a reliable Java developer to architect and deliver production-ready backend systems, let's connect.
Hepi C.
has worked
.
United States
$50/hr
100%
Job Success
$30K+ earned
Start of list.
End of list.
Hello✋. I am a result-driven Full Stack expert, leading a team of Full Stack engineers and UX/UI designers - QIT Software, a Team Augmentation company, that unites professional digital creators. We can build any web and mobile product, using the latest technologies of your choice. Either you need Web & Mobile apps, scripts, libraries, and browser extensions, we can do it.
Technologies we work with:
✅ React, Vue, Angular, Node, PHP, Java, Python, .NET, C/C++, Golang, Swift, Kotlin, Flutter, Ionic, etc.
✅ SQL, MySQL, PostgreSQL, OracleDB, MongoDB, DynamoDB, MariaDB, SQLite, Fireabase, etc.
✅ AWS, Azure, Google Cloud, etc.
✅ ES6/7+, JavaScript, TypeScript
✅ Responsive CSS / CSS3 , LESS / SASS / SCSS
✅ Responsive frameworks - Bootstrap, Material UI, AntDesign, TailwindCSS
✅ GitHub, GitLab, Bitbucket
✅ Figma, Zeplin, InVision, Sketch
✅ JIRA, Trello, Asana
✅ TDD, Unit testing, E2E testing
We work fast and our code is clean, w3c valid, semantic, and easy to maintain.
⚡ We take care of things and help companies to:
- extend tech teams with talents, who will exclusively work on the project;
- reach flexibility by scaling both up and down;
- avoid painful expenses of in-house hiring and recruiting agencies;
- avoid uncertainties about the right candidate;
- launch a project to production without major issues and respect your deadlines;
- save on in-house engineer team without saving on product quality;
- sufficiently decrease time-to-market;
- hit those KPIs and maximize ROI.
📍 By working with QIT Software you get:
- a streamlined onboarding time for new team members;
- an outstanding cost-quality ratio that will get more room for new ideas and features;
- simplified tax system to the reduced staff;
- stress release; we handle all the paperwork and cover all the desk costs;
- a transparent direct line of communication;
- full development process supervision of your remote team.
🚀 We help companies grow.
Send me an invitation and I will get back to you shortly. We are looking forward to building something cool with you!
Associated with
QIT Software
$100K+
earned
$40/hr
100%
Job Success
$1K+ earned
Available now
Offers consultations
Start of list.
End of list.
Full stack web developer delivering investor-ready products with 85% test coverage, low bug density and controlled technical debt
⚡️ 47+ delivered projects across 31 industries
⚡️Products helped raise $141M+ in investments
⚡️85% test coverage, low bug density (0.5 / 1k LOC)
⚡️100% design-to-code accuracy
⚡️Two-week sprints with regular demos
⚡️Regular refactoring and controlled technical debt
💰 Clients raise $3-4M with me as I work with B2B software and SaaS platforms (as React SaaS developer), including legacy systems, helping teams across the US, Canada, UK, Benelux, and Scandinavia redesign products to fix user complaints, improve scalability, and boost productivity.
I don’t just write code, I build tools that transform ideas into scalable, secure products that impress users and deliver real business value. My expertise covers the full development cycle - from UX/UI design (web design) to building Web application as a Full stack Web developer, React Web developer, Backend development, Mobile app, to no-code solutions, working as a full stack developer react node on complex SaaS and B2B products.
🔥 My expertise as a React Web Developer and Full Stack web developer includes:
I’m a Full Stack Developer specializing in React.js Node.js and the MERN stack (MongoDB, Express, React, Node.js), as a full stack developer react node building scalable SaaS and B2B platforms. I work as a front end developer / react developer, creating seamless, high-performance web applications.
Frontend React: I create fast, responsive, and user-friendly interfaces for dashboards, CRMs, and web apps. As a react developer, I ensure tight integration with backend systems. My expertise also includes react js website development, react saas, and react twilio integration for advanced real-time features.
Backend Node.js developer: I design scalable architectures, RESTful APIs and server solutions. As a node.js developer and backend engineer, I deliver reliable, production-ready products with clean technical documentation, high performance and maintainable code. My work covers node.js back-end and full react js node js implementation production-ready and reliable.
Alongside my core work as a Full Stack Developer React Node / SaaS Web Developer, I also understand how UX design, Laravel Vue, Ruby on Rails and Bubble-based products connect within broader product development workflows.
🔥 Additional Web Development and Mobile Development Skills
💎JavaScript development across front end and fullstack projects, specializing as a Javascript developer ( React Web developer )
💎Mobile app development using React Native, Flutter and react native for cross-platform solutions.
💎Python backend development, including python developer and python rest api developer, analytics and integrations.
💎Webflow and modern website creation.
💎Full stack javascript solutions covering front end React, backend Node.js and database integration as a MERN stack developer.
💎Payment and third-party integrations using Stripe.
💎Enterprise-level React nodejs applications ensuring security, scalability, and usability.
💎Experienced senior front end developer and java react projects for SaaS and web platforms.
💥I am an experienced React frontend developer I specializing in building responsive, high-performance web applications. As a full stack developer React Node, I combine seamless react frontend interfaces with robust backend engineer solutions, creating scalable, efficient, and user-friendly products, as a full stack developer react node focused on long-term scalability.
I understand where a wordpress developer approach makes sense, but for products that need scalable architecture, custom logic, and long-term flexibility, I can also offer a more robust solution with React and Node.js.
Guarantee stability, scalability and competitiveness of your products. With support from a full stack web developer, your product can stay aligned with both technical standards and business goals.
If you're searching for a senior backend developer node.js or React Web developer, who can help you scale efficiently while aligning with business goals, I’m here to help.
📞 Ready to build a game-changing product?
Contact me to discuss your SaaS or Web App and bring your ideas to life efficiently.
Karyna K.
has worked
.
Associated with
Uitop - B2B SaaS design & dev agency 🏆 We design the software for grow!
$200K+
earned
$18/hr
94%
Job Success
$300K+ earned
Available now
Offers consultations
Start of list.
End of list.
Hello👋
I am a 𝐒𝐞𝐧𝐢𝐨𝐫 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 𝐌𝐨𝐛𝐢𝐥𝐞 & 𝐖𝐞𝐛 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 (15+ Years Experience) specializing in AI-powered applications, SaaS platforms and scalable MVP development.
With 15+ years of experience in Full Stack Development, Mobile App Development, and Product Engineering, I have helped clients transform ideas into successful digital products from MVP development to enterprise-scale solutions.
💡 𝐂𝐨𝐫𝐞 𝐒𝐞𝐫𝐯𝐢𝐜𝐞𝐬
✔ SaaS Development
✔ MVP Development for Startups
✔ AI Application Development
✔ Mobile App Development (iOS & Android)
✔ Flutter App Development
✔ React Native App Development
✔ Web Application Development
✔ Custom Software Development
✔ Marketplace Development
✔ CRM & ERP Development
✔ Membership & Community Platforms
✔ Customer Portal Development
✔ Enterprise Software Development
✔ API Development & Third-Party Integrations
✔ Cloud Architecture & DevOps
✔ UI/UX Design & Product Strategy
🛠 𝐓𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐢𝐞𝐬
Mobile Development: Flutter, React Native, Swift, Kotlin
Frontend: React.js, Next.js, Vue.js, JavaScript, TypeScript
Backend: Node.js, Laravel, Express.js, REST APIs, GraphQL, Microservices
AI Development: OpenAI API, Claude API, AI Chatbots, AI Agents, Workflow Automation, Generative AI
Cloud & DevOps: AWS, Azure, Firebase, Docker, CI/CD, Serverless Architecture
Databases: PostgreSQL, MySQL, MongoDB, Firebase
Payments & Integrations: Stripe, PayPal, Twilio, SendGrid, Google APIs, Firebase, HubSpot
🎯 𝐖𝐡𝐲 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐇𝐢𝐫𝐞 𝐌𝐞
✔ End-to-End Product Development
✔ Startup & SaaS Expertise
✔ Fast MVP Delivery
✔ Scalable Architecture
✔ Clean, Maintainable Code
✔ Product-Focused Thinking
✔ Strong Communication
✔ Agile Development Process
✔ Long-Term Support & Maintenance
𝐑𝐞𝐬𝐮𝐥𝐭𝐬 𝐈 𝐃𝐞𝐥𝐢𝐯𝐞𝐫:
✅ SaaS Platforms
✅ AI-Powered Applications
✅ Mobile Apps for iOS & Android
✅ Web Applications
✅ Marketplaces
✅ Membership Platforms
✅ Community Platforms
✅ CRM & ERP Systems
✅ Customer Portals
✅ Enterprise Software
If you are looking for a Full Stack Developer who can turn your idea into a scalable SaaS platform, AI application, web app, mobile app, marketplace, membership platform, or custom software solution, let's discuss your project.
📩 𝐒𝐞𝐧𝐝 𝐦𝐞 𝐚 𝐦𝐞𝐬𝐬𝐚𝐠𝐞 — 𝐥𝐞𝐭’𝐬 𝐭𝐮𝐫𝐧 𝐲𝐨𝐮𝐫 𝐢𝐝𝐞𝐚 𝐢𝐧𝐭𝐨 𝐚 𝐩𝐨𝐰𝐞𝐫𝐟𝐮𝐥, 𝐫𝐞𝐯𝐞𝐧𝐮𝐞-𝐠𝐞𝐧𝐞𝐫𝐚𝐭𝐢𝐧𝐠 𝐩𝐫𝐨𝐝𝐮𝐜𝐭.
yogesh C.
has worked
.
Associated with
Paras Technologies
$3M+
earned