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$22/hr
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$70K+ earned
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Hello! I'm Arthur Torres, a Full Stack Software Engineer with 8 years of experience building scalable web applications, SaaS platforms, and data-driven dashboards.
I specialize in TypeScript-based architectures, combining modern frontends with robust backend systems to deliver high-performance, production-ready solutions.
If you need a developer who understands both business logic and clean architecture, I can help you build, optimize, or scale your product.
🚀 What I Can Do For You
✔️ Build full-stack applications (Next.js + NestJS + PostgreSQL / MongoDB)
✔️ Develop scalable REST APIs and real-time systems (WebSockets, SSE)
✔️ Design clean, responsive, and modern UIs (Angular, React, Tailwind, MUI)
✔️ Implement authentication systems (JWT, RBAC, secure cookies, CSRF)
✔️ Create dashboards with advanced data visualization
✔️ Integrate third-party APIs (payments, maps, video, email, etc.)
✔️ Optimize performance (caching with Redis, lazy loading, SSR)
✔️ Deploy applications on AWS / Firebase / hosting platforms
🧩 Frontend Expertise
Angular (4+ years experience)
React.js & Next.js (SSR, performance optimization)
Tailwind CSS, Material UI, Framer Motion
Advanced UI/UX improvements & responsive design
Interactive dashboards (D3.js, Chart.js, Plotly)
Google Maps integrations (routes, clustering, geolocation)
⚙️ Backend & Full Stack
Node.js, NestJS, Prisma ORM
PostgreSQL, MongoDB
Authentication & authorization systems (RBAC)
Background jobs (cron jobs, queues)
Redis (caching & queue management)
File generation (PDF, Excel, CSV reports)
Email automation (SendGrid)
☁️ DevOps & Tools
AWS (S3, Lambda, EC2 – basic setup & deployment)
Firebase (Auth, Firestore, Hosting)
Git, GitHub, GitLab, Bitbucket
Jira, Trello, Asana
💼 Experience Highlights
Built full SaaS platforms with authentication and role systems
Developed investor and admin dashboards with real-time data
Implemented map-based systems with tracking and clustering
Automated reporting systems and background workflows
🧠 Work Style
I focus on writing clean, maintainable, and scalable code, following best practices and clear architecture patterns.
I'm proactive, communicative, and committed to delivering high-quality results on time.
📩 Let’s Work Together
If you're looking for a reliable developer who can take ownership of your project and deliver real results — feel free to reach out.
Associated with
Crazy Imagine Software LLC
$3M+
earned
$30/hr
100%
Job Success
Available now
Offers consultations
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💎𝗧𝗼𝗽 𝗥𝗮𝘁𝗲𝗱 𝗣𝗹𝘂𝘀 | $𝟮𝟬𝟬𝗞+ 𝗘𝗮𝗿𝗻𝗲𝗱 – 𝗧𝗿𝘂𝘀𝘁𝗲𝗱 𝗯𝘆 𝘁𝗼𝗽 𝗰𝗹𝗶𝗲𝗻𝘁𝘀, 𝗸𝗻𝗼𝘄𝗻 𝗳𝗼𝗿 𝘁𝘂𝗿𝗻𝗶𝗻𝗴 𝗱𝗲𝗮𝗱𝗹𝗶𝗻𝗲𝘀 𝗶𝗻𝘁𝗼 𝗱𝗲𝗹𝗶𝘃𝗲𝗿𝘆 𝗮𝗻𝗱 𝗽𝗿𝗼𝗷𝗲𝗰𝘁𝘀 𝗶𝗻𝘁𝗼 𝗽𝗮𝗿𝘁𝗻𝗲𝗿𝘀𝗵𝗶𝗽𝘀.
Full-Stack Developer | 8+ Years of Experience | Scalable & Robust Solutions
✨ About Me
I’m a seasoned Full-Stack Developer with over 8 years of experience crafting scalable, high-performance web applications. With deep expertise across modern frontend frameworks and robust backend technologies, I specialize in transforming ideas into seamless digital products whether it’s an MVP or a fully scalable enterprise solution.
Throughout my career, I’ve served as a Technical Lead, driving complex projects from architecture to deployment. I excel at designing clean, efficient systems, implementing secure authentication flows, building reliable APIs, and optimizing database performance. My work spans multiple industries and includes hands-on experience with payment gateways, email automation, cloud services, and real-time application features.
Passionate about clean code, intuitive UX, and efficient system design, I bring a blend of technical expertise and strategic thinking to every project I take on.
My Tech Stack & Expertise
✔️ Frontend Development:
◐ Angular| React.js | Next.js|
◐ HTML5 | CSS3 | Tailwind CSS | Bootstrap
✔️ Backend Development:
◐ Node.js | Express.js | Nest.js
◐ Python | Flask | FastAPI
✔️AI/ML
✔️ Mobile App Development:
◐ React Native | Ionic
✔️ Database & Cloud Computing:
◐ Databases: MySQL | MongoDB | Firebase | PostgreSQL
◐ Cloud Services: AWS S3 | Google Cloud
✔️ Other Key Skills:
◐ API Development & Integration
◐ Authentication & Role-Based Access Control
◐ Payment Gateway Integration
◐ Scalable Microservices Architecture
✨ Why Choose Me?
✔️ Client-First Mindset: I prioritize understanding your goals and delivering solutions that truly solve real problems not just lines of code.
✔️ Built for Growth: Every application I build is optimized for performance and designed to scale seamlessly as your business expands.
✔️ Clear, Consistent Communication: Expect transparency, regular updates, and smooth collaboration from start to finish.
✔️ Secure, Maintainable Code: I follow industry best practices to ensure your application is reliable, secure, and easy to maintain long-term.
✔️ Strategic Problem Solver: I go beyond development analyzing, refining, and enhancing your project to achieve the highest performance and user experience.
Let's Connect:
▔▔▔▔▔▔▔▔▔▔▔▔
Feel free to reach out if you have any questions or would like to discuss your project further. I'm eager to tackle your project head-on and create something we can both be proud of.
Thank you for your time. I look forward to collaborating with you.
Best regards,
Bhavin
Bhavin P.
has worked
.
$25/hr
100%
Job Success
$70K+ earned
Available now
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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!
Associated with
Incode Group
$900K+
earned
$29/hr
100%
Job Success
$100K+ earned
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🚀 Expert-Vetted Freelancer : Ranked among the top 1% on Upwork
🚀 8000+ Hours Worked : Proven reliability with long-term clients
🚀 8+ Years of Experience : Delivering modern, scalable web solutions
🎓 Computer Science Graduate : Strong technical foundation
_____________________________________________________
Hi, I’m Sajid, a Senior MERN Stack Developer specializing in building high-performance, scalable, and visually polished web applications.
As an Expert-Vetted freelancer, I’ve helped startups and businesses turn ideas into powerful digital products, focusing on speed, clean architecture, and pixel-perfect UI.
💻 Core Expertise:
Frontend Development:
React.js, Next.js, Vue.js, Angular, JavaScript (ES6+), TypeScript, HTML5, CSS3
State Management:
Redux, Redux-Saga, Context API, Vuex
UI & Styling:
Tailwind CSS, Bootstrap, Material UI, Ant Design
Backend & Database:
Node.js, postgres, MySQL, SQL, GraphQL, MongoDB, Firebase
Design to Code:
Figma, Adobe XD, Photoshop (Pixel-perfect implementation)
Tools & Workflow:
Git, GitHub, GitLab, CI/CD Pipelines
CMS & Platforms:
WordPress, Shopify, Webflow, Squarespace
🎯 Why Work With Me?:
✅ Quality First : Clean, scalable, and maintainable code
💬 Clear Communication : Fast responses and smooth collaboration
⚡ Performance Focused : Optimized, fast-loading applications
🎯 Versatile Experience : From landing pages to complex SaaS platforms
🤝 Team-Friendly : Comfortable working with teams or independently
🚀 What I Can Do For You:
✔ Build responsive, modern web applications
✔ Convert Figma designs into pixel-perfect UI
✔ Develop full-stack MERN applications
✔ Optimize website performance and SEO
✔ Maintain and scale existing projects
⚡ Additional Benefits:
📱 Fully responsive & cross-browser compatible
🧹 Clean, well-structured, and documented code
⏱️ Fast turnaround without compromising quality
📞 Available for calls and long-term collaboration
If you’re looking for a reliable, expert-level developer who can deliver both quality and speed, let’s connect and discuss your project.
Best Regards,
Sajid U.
🔑 Key Skills (SEO Optimized)
React.js, Next.js, MERN Stack, JavaScript, TypeScript, HTML5, CSS3, Tailwind CSS, Bootstrap, Figma to Code, Responsive Design, UI/UX, REST APIs, GraphQL, MongoDB, Node.js, SPA Development, Cross-Browser Compatibility
Sajid U.
has worked
.
$35/hr
89%
Job Success
$10K+ earned
Offers consultations
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I build role-based SaaS dashboards in Next.js and React for founders and product teams who need a frontend that ships and scales.
My largest Upwork project was a complete gym management SaaS platform where I built the frontend and API integration across three role-based dashboards: the main user dashboard, super admin panel, and trainer dashboard. Separate permission layers, separate data flows, separate UIs, all in one Next.js + TypeScript codebase. That kind of multi-role system is the work I'm built for.
I've been building production React and Next.js applications for 4+ years. Most of my work follows the same pattern: multi-role SaaS dashboards where the frontend has to handle complex permissions, real data, and real users without falling apart by version 2.
Who I work well with:
• Funded SaaS startups shipping their first real product
• Product teams who need a frontend specialist, not a generalist
• Founders who have a Figma file and a deadline and need someone who won't need hand-holding
Who I'm not a fit for:
• $200 one-page conversions (I used to take these I don't anymore)
• Projects where "senior React dev" means "whoever was cheapest."
What I actually do:
• Multi-role SaaS dashboards (admin + user + staff panels)
• Next.js apps with SSR/SSG/ISR where it matters, not where it doesn't
• TypeScript architectures that stay clean as the codebase grows
• Auth and role-based access (Clerk, Supabase, JWT, NextAuth)
• Figma → production builds with real attention to responsive behavior
• API integration: REST, GraphQL, and third-party platforms like Shopify when product data lives externally
• Real-time features with Supabase and Firebase
Tech Stack:
Next.js · React · TypeScript · Tailwind · Zustand · Redux Toolkit · React Query · Supabase · Firebase · Clerk · JWT · GraphQL · Framer Motion
On Upwork:
• Top Rated
• 100% Job Success Score
• Based in Pakistan, available for work overlap with US/EU time zones
If you're shipping a SaaS dashboard and need a Next.js developer who thinks like a product engineer, not a task executor, send me the Figma and a rough scope. I'll tell you honestly whether I'm the right fit and how I'd approach it.
Irfan A.
has worked
.
$25/hr
100%
Job Success
$10K+ earned
Available now
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Hi, I’m Raheel, a Frontend focused Full-Stack Engineer with 𝟖+ 𝐲𝐞𝐚𝐫𝐬 𝐨𝐟 𝐞𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 building scalable, fast, and user-friendly web applications — now combining traditional frontend expertise with 𝐀𝐈-𝐩𝐨𝐰𝐞𝐫𝐞𝐝 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 𝐰𝐨𝐫𝐤𝐟𝐥𝐨𝐰𝐬 𝐚𝐧𝐝 𝐚𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧.
I specialize in modern frameworks like 𝐑𝐞𝐚𝐜𝐭, 𝐕𝐮𝐞, 𝐍𝐞𝐱𝐭.𝐣𝐬, 𝐍u𝐱𝐭.𝐣𝐬 and 𝐓𝐲𝐩𝐞𝐒𝐜𝐫𝐢𝐩𝐭, with a strong focus on:
• Clean, maintainable code and modular UI architecture
• AI-assisted development for rapid delivery and smarter features
• Workflow automation using 𝐧𝟖𝐧, 𝐎𝐩𝐞𝐧𝐀𝐈, and custom agents
• Performance optimization and analytics integration
🤖 𝐀𝐈 & 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 𝐄𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞:
• Daily development powered by 𝐂𝐮𝐫𝐬𝐨𝐫, 𝐂𝐡𝐚𝐭𝐆𝐏𝐓, and 𝐂𝐥𝐚𝐮𝐝𝐞 𝐂𝐨𝐝𝐞 for faster, cleaner iteration
• Designing System Prompts for AI Agents, tuned for task-driven behavior
• Building AI-powered workflows in n8n to automate processes like content generation, ticket triage, and lead enrichment
• Integrating 𝐎𝐩𝐞𝐧𝐀𝐈 𝐀𝐏𝐈𝐬 (𝐜𝐡𝐚𝐭, 𝐜𝐨𝐦𝐩𝐥𝐞𝐭𝐢𝐨𝐧, 𝐞𝐦𝐛𝐞𝐝𝐝𝐢𝐧𝐠𝐬) directly into client platforms for search, assistants, and smart UIs
🧠 𝐖𝐡𝐚𝐭 𝐈 𝐁𝐫𝐢𝐧𝐠 𝐭𝐨 𝐘𝐨𝐮𝐫 𝐏𝐫𝐨𝐣𝐞𝐜𝐭:
⚛️ 𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞: Typescript, React, Vue, NextJS, NuxtJS, Redux, Vuex, Pinia, Zustand, TailwindCSS, ShadCN, ChakraUI, Ant Design, Element UI, Semantic UI Bootstrap
📆 𝐂𝐨𝐦𝐩𝐨𝐧𝐞𝐧𝐭 𝐋𝐢𝐛𝐫𝐚𝐫𝐢𝐞𝐬 & 𝐃𝐞𝐬𝐢𝐠𝐧 𝐒𝐲𝐬𝐭𝐞𝐦𝐬: Themeable, scalable, and reusable
🔌 𝐀𝐏𝐈-𝐅𝐢𝐫𝐬𝐭 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭: REST APIs, GraphQL, Supabase, Firebase, Node.js, NestJS, ExpressJS, Django, AWS (Cognito, SQS, DynamoDB)
🌍 𝐋𝐨𝐜𝐚𝐥𝐢𝐳𝐚𝐭𝐢𝐨𝐧 & 𝐀𝐜𝐜𝐞𝐬𝐬𝐢𝐛𝐢𝐥𝐢𝐭𝐲: DeepL integration, multi-language techpacks, WCAG-aware UI
📊 𝐀𝐧𝐚𝐥𝐲𝐭𝐢𝐜𝐬 & 𝐎𝐩𝐭𝐢𝐦𝐢𝐳𝐚𝐭𝐢𝐨𝐧:: Google Analytics, Google Tag Manager, Mixpanel, Segment, FullStory
🧰 𝐓𝐞𝐬𝐭𝐢𝐧𝐠 & 𝐂𝐈/𝐂𝐃:: Jest, Nightwatch, CircleCI, Docker, GitHub Actions, Vercel, Netlify
🏢 𝐈𝐧𝐝𝐮𝐬𝐭𝐫𝐢𝐞𝐬 𝐈’𝐯𝐞 𝐖𝐨𝐫𝐤𝐞𝐝 𝐈𝐧:
🎧 𝐌𝐞𝐝𝐢𝐚 & 𝐄𝐧𝐭𝐞𝐫𝐭𝐚𝐢𝐧𝐦𝐞𝐧𝐭: Streaming platforms and audio players
🏡 𝐑𝐞𝐚𝐥 𝐄𝐬𝐭𝐚𝐭𝐞: Property management, P2P asset exchanges, and investment portals
🗓️ 𝐄𝐯𝐞𝐧𝐭 𝐌𝐚𝐧𝐚𝐠𝐞𝐦𝐞𝐧𝐭: Mobile-first event discovery and booking platforms
📈 𝐌𝐚𝐫𝐤𝐞𝐭𝐢𝐧𝐠 / 𝐋𝐞𝐚𝐝 𝐆𝐞𝐧𝐞𝐫𝐚𝐭𝐢𝐨𝐧: SEO-focused lead generation tools and marketing funnels
🧑💼 𝐑𝐞𝐜𝐫𝐮𝐢𝐭𝐦𝐞𝐧𝐭 & 𝐇𝐑 𝐓𝐞𝐜𝐡: Developer hiring platforms with scoring and workflows
🛠️ 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 𝐓𝐨𝐨𝐥𝐬 / 𝐋𝐨𝐰-𝐜𝐨𝐝𝐞: Open-source platforms, AI agents, n8n automation
👗 𝐅𝐚𝐬𝐡𝐢𝐨𝐧 𝐓𝐞𝐜𝐡 / 𝐏𝐋𝐌: Techpacks, line sheets, and product lifecycle tooling
🛠️ 𝐍𝐨𝐭𝐚𝐛𝐥𝐞 𝐏𝐫𝐨𝐣𝐞𝐜𝐭𝐬:
• 𝐋𝐮𝐦𝐢𝐧𝐚𝐫𝐲 𝐏𝐨𝐝𝐜𝐚𝐬𝐭𝐬: VueJS-based platform with custom audio player, Firebase integration, and admin CMS
• 𝐃𝐚𝐫𝐰𝐢𝐧 𝐇𝐨𝐦𝐞𝐬: Built reusable React component libraries for multi-app property management
• 𝐱𝐒𝐭𝐚𝐭𝐞: Implemented IPO flow, P2P exchange, and wallet for fractional real estate investment
• 𝐋𝐢𝐟𝐞𝐜𝐲𝐜𝐥𝐞 𝐏𝐋𝐌: Contributed UI fixes, multi-language support (DeepL), and line sheet generator for fashion brands
• 𝐔𝐍𝐀𝐓𝐈𝐎𝐍 𝐏𝐖𝐀: Delivered event discovery platform with PWA tech and responsive mobile-first UX
• 𝐋𝐨𝐰𝐜𝐨𝐝𝐞𝐫: Ongoing contributor to a low-code platform: frontend components, bundle optimization, developer onboarding
• 𝐂𝐮𝐬𝐭𝐨𝐦 𝐀𝐈 𝐀𝐬𝐬𝐢𝐬𝐭𝐚𝐧𝐭𝐬: Built AI-driven systems using n8n + OpenAI for automated data processing, content generation, and agent logic
🤝 𝐖𝐡𝐲 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐂𝐡𝐨𝐨𝐬𝐞 𝐌𝐞:
• Clear, proactive communication: I ask the right questions and deliver on time
• Strong async contributor: PR-ready commits, docs, and reviews
• Comfortable with both solo work and embedded team roles
• Ability to combine classic frontend dev with modern AI workflows for faster and smarter delivery
Whether you’re building a dashboard, integrating AI assistants, or scaling your SaaS product — I can help you ship faster with quality that lasts.
Let’s build something impactful together. 🚀
Raheel I.
has worked
.
$40/hr
100%
Job Success
$10K+ earned
Start of list.
End of list.
If you're looking for a frontend engineer who thinks ahead and treats your product personally, I'm open to collaboration. My role is not just to implement designs or tasks, but to help shape frontend solutions that remain maintainable and stable over time.
With 6+ years of frontend experience, I build modern web applications that balance clean UI with solid technical foundations. I pay close attention to performance, accessibility, cross-browser behavior, and long-term maintainability. My goal is to deliver work that does not need to be "fixed later" because the right decisions were made early.
I work primarily with modern JavaScript ecosystems and production-ready tooling:
- JavaScript, TypeScript, React, Next.js, Vue.js
- SCSS, Tailwind CSS, responsive and accessible UI implementation (WCAG)
- Performance optimization and SEO best practices
- API integration and full-stack implementation (MERN: MongoDB, Express, Node.js, React)
- Design-to-code from Figma, Canva, and Adobe tools
- Testing with Vitest and Jest
- CI/CD pipelines, Git-based workflows, and team-oriented development
- Integrations such as Stripe and Laravel-based backends
If you value thoughtful decision-making, clear communication, and a frontend that remains stable as your product evolves, I’d be glad to discuss how we can work together.
$15/hr
$300+ earned
Start of list.
End of list.
I build the frontend of your business, from high-converting landing pages to complex, logic-driven web applications.
I’m Thu Rein Phyo Ko (Ryan), a Frontend Engineer specializing in the React ecosystem. I help businesses turn complex ideas and designs into fast, reliable, and pixel-perfect digital products.
Whether you need a lightning-fast landing page that converts visitors or a scalable web app with complex state management, I deliver clean, maintainable code using the latest industry standards.
What I bring to your project:
Engineering Mindset: I don’t just "slice" designs. I architect systems. Using TypeScript and Zustand, I ensure your app’s logic is robust and error-free.
Performance First: I optimize for Core Web Vitals and SEO from day one. My Next.js sites are built to be lightning-fast on every device.
Design Fidelity: Whether your design is in Figma or a PDF, I translate it into a responsive, interactive experience using Tailwind CSS and Framer Motion.
Business Focus: I treat every project like my own. My goal is to build a solution that actually helps your business grow, not just a site that looks pretty. Clients appreciate my clear communication, on-time delivery, and ability to solve problems without overcomplicating the process.
Technical Stack:
Frameworks: React, Next.js (App Router).
State & Data: Zustand, React Query (TanStack), API Integration.
Languages: TypeScript, JavaScript (ES6+).
Styling & UI: Tailwind CSS, Framer Motion, Responsive & Accessible Design.
My Promise:
Clear communication, on-time delivery, and a developer who thinks about your "Why" just as much as the "How."
Let's build something that works. Send me a message and let's discuss your project.
$35/hr
100%
Job Success
$7K+ earned
Available now
Start of list.
End of list.
Hi there!
I’m Zeljana, a Senior Shopify & Full-stack Developer (React, Next.js, Vue, Angular) who helps businesses turn ideas into engaging, high-converting digital experiences.
With a strong background in Shopify and frontend & backend development, I don’t just implement designs -- I actively contribute to product direction, challenge assumptions, and suggest improvements that enhance usability, performance, and conversion. I bridge the gap between design, development, and business goals to build websites that look great and perform even better.
My expertise includes:
✅ UX/UI Design – Creating intuitive, visually appealing interfaces that enhance user engagement and drive conversions.
✅ Shopify Development – Custom theme customization, store setup, app integration, app customization, and performance optimization.
✅ Frontend Development – Building responsive, pixel-perfect websites using HTML5, CSS3, JavaScript, Tailwind CSS, React, Next.js, Vue.js, and Angular (v15–v18).
✅ Backend Development – Building scalable server-side logic and APIs using Node.js, Express, Python (Django / Flask), PHP (Laravel), and databases like PostgreSQL, MySQL, MongoDB, and Firebase. Experience with authentication (JWT, OAuth), RESTful APIs, GraphQL, and cloud services (AWS, Vercel, Netlify).
✅ Shopify CRO Optimization – Improving store conversion rates through UX improvements, performance tuning, and data-driven enhancements.
✅ Shopify App development, App Integration & Customization – Seamless third-party app development & integration and custom app modifications tailored to business needs.
✅ Conversion Optimization – Focusing on user experience, speed, accessibility, and clean code to maximize online success.
I enjoy working as a true partner, not just a task-taker. I take initiative, communicate openly, and focus on delivering practical, well-thought-out solutions that support business growth. Whether you need a custom Shopify store, a high-converting landing page, or a fully interactive frontend & backend application, I help shape the solution — not just build it.
Let’s connect and build something great together! 🚀
𝗞𝗲𝘆𝘄𝗼𝗿𝗱𝘀: Shopify Developer, Shopify Expert, Shopify Plus Developer, Shopify Designer, Shopify Store Design, Shopify Store Setup, Shopify Store Development, Shopify Store Redesign, Shopify Website Developer, Shopify Website Design, Shopify Website Redesign, Shopify Theme Customization, Shopify Theme Developer, Custom Shopify Theme, Shopify Ecommerce Website, Shopify Ecommerce Store, Shopify Ecommerce Developer, Shopify Online Store, Shopify CRO, Shopify Conversion Rate Optimization, Shopify Speed Optimization, Shopify Performance Optimization, Page Speed Optimization, Core Web Vitals, Shopify Liquid Developer, Shopify App Development, Shopify App Integration, Custom Shopify App, Shopify Checkout Customization, Shopify Plus Architecture, Shopify B2B, Shopify Wholesale, Shopify Migration, WooCommerce to Shopify, Magento to Shopify, Shopify SEO, Shopify Mobile Optimization, Shopify Landing Page, Shopify PDP Optimization, Figma to Shopify, Shopify 2.0, Shopify Metafields, Shopify Functions, Shopify Scripts, Shopify Flow, Shopify API Integration, Shopify GraphQL, Shopify Headless Commerce, Shopify Hydrogen, Ecommerce Website Development, Klaviyo Integration, Recharge Integration, Yotpo Integration, DTC Brands, Supplement Ecommerce, Skincare Ecommerce, Beauty Ecommerce, High-AOV Shopify Stores, Shopify Store Management, Shopify Maintenance, Shopify Support, Shopify Consulting, Shopify Specialist, Shopify
Željana G.
has worked
.
$40/hr
100%
Job Success
$700K+ earned
Available now
Offers consultations
Start of list.
End of list.
𝗧𝗼𝗽 𝗥𝗮𝘁𝗲𝗱 𝗣𝗹𝘂𝘀 𝗼𝗻 𝗨𝗽𝘄𝗼𝗿𝗸, 𝘁𝗼𝗽 𝟯% 𝗴𝗹𝗼𝗯𝗮𝗹𝗹𝘆
⚡ WHAT YOU GET
✔️12+ Full Stack Developer | AI development | SaaS Developer
✔️60+ delivered projects across AI SaaS, CRM systems, dashboards, automation platforms, healthcare, legal tech, real estate, e-commerce, and trading software
✔️15+ AI-powered SaaS MVPs, AI CRM systems, RAG tools, OCR/PDF processing, OpenAI and Claude integrations built from idea validation to production launch
✔️25+ scalable React, Next.js, Node.js, Python AI backend, PostgreSQL, Stripe, AWS and Docker builds with full technical ownership, secure architecture, production-ready delivery as a Full Stack AI SaaS Developer
⚡ ACHIEVEMENTS | CLIENT WINS FROM AI SAAS & FULL STACK DEVELOPMENT
✔️26-day ROI recovery — recruitment agency launched a Recruiting SaaS Platform with CRM automation and 2x faster candidate workflows
✔️93% faster estimation — construction business reduced quoting time from 8 hours to 30 minutes with a custom Construction Estimator Web App
✔️#4 Product of the Day — legal tech founder launched an AI Legal Assistant with RAG-powered document search, OpenAI integration, and AI workflow automation
✔️5+ secure healthcare platforms — healthcare and med spa businesses improved provider/patient workflows with role-based access, admin dashboards, and API integration
✔️10+ CRM & trading systems — business owners replaced manual operations with custom CRM platforms, trading dashboards, reporting tools, and scalable workflow automation
⚡As a Full stack AI SaaS developer I can support you with:
✔️ AI-powered SaaS MVPs and product validation
✔️ AI agent workflow platforms and workflow automation system
✔️ AI-powered CRM system and Custom CRM-style platform
✔️ AI-enabled admin dashboard and Admin panels and internal tools
✔️ Role-based workflow platform with secure permissions
✔️ Secure multi-user web application and scalable backend systems
✔️ Booking and scheduling platform for service businesses
✔️ Provider / patient workflow systems for healthcare solutions
✔️ Multi-stage automation workflows for complex processes
✔️ RAG-powered document intelligence and search systems
✔️ LLM-powered data processing using openai and modern AI tools
✔️ AI-assisted analytics and reporting
✔️ OCR and PDF processing pipelines
✔️ Rule-based insight engines
✔️ Secure backend API development and Third-party API integration
✔️ Multi-tenant SaaS platforms with workspace isolation
✔️ Dashboard and data visualization systems
✔️ HIPAA / GDPR-compliant platforms
⚡ MY CORE STACK as a Full stack Web Developer
React, Next.js, Node.js, Python, JavaScript, Supabase, PostgreSQL, MySQL, MongoDB, AWS, Docker, nginx, Stripe and AI tools like Openai, Claude, LangChain. I also work with laravel and PHP when a project requires a Full stack developer laravel or integration into an existing system.
As a Full stack developer SaaS, I cover full product delivery: frontend, backend, infrastructure, APIs, and AI logic. I can work as a React developer, Front end developer, Backend developer, Web developer, or Full stack web developer depending on the scope. On the frontend, I also work with HTML, CSS 3, Tailwind CSS, Vue.js, Angular, and Bootstrap when a product requires a specific stack or legacy support.
For SaaS products, I often act as a Full stack developer React, building React + Node.js SaaS applications with dashboards, admin panels, role-based access, and secure APIs. I also work as a Full stack developer node, Full stack developer node js, focusing on performance and scalable architecture.
When AI is involved, I support projects as a python developer with Python AI backend development, including RAG systems, OCR pipelines, document processing, and intelligent automation.
I also have experience working with mobile app development and can contribute as a React Native developer, building cross-platform apps with react native that integrate seamlessly with backend systems and APIs.
In addition, I’ve worked with shopify, wordpress developer workflows, and niche integrations, including Lazada developer-related marketplaces, helping businesses extend their platforms with custom features, payments, and automation.
What sets me apart is product thinking. As a technical partner and cto-level contributor, I help define Software Architecture & Design, avoid unnecessary complexity, and build solutions that are ready for real users
I also collaborate on web design, ui ux web design and ui ux web designer workflows to ensure products are intuitive and easy to use.
If you need full stack web development, full stack saas architecture, AI-powered features or a reliable Full stack website developer, I can help you build and scale your product.
I am especially strong as a Full stack developer saas, Full stack AI SaaS developer, for complex platforms and AI-driven products.
💬 Message me with your idea - I’ll share a relevant case, technical approach, and a clear estimate from a full stack developer.
Associated with
Exore LTD - Top Rated Plus Agency | Full stack development 🏅
$1M+
earned