You will get React, Next, Gatsby, Remix & Vue Api integration
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Project details
I provide professional API integration and data layer development services for React and Next.js applications, with a strong focus on reliability, performance, and scalability. I help connect frontend applications with external and internal APIs, ensuring stable data flow and predictable application behavior.
I have experience integrating REST and GraphQL APIs across projects of different complexity - from MVPs to large-scale production systems. My work includes authentication flows, error handling, data validation, and optimization of client–server communication to improve performance and user experience.
I offer end-to-end support: from API analysis and integration strategy to implementation, debugging, and long-term maintenance. Whether you need to integrate third-party services, refactor an existing data layer, or stabilize complex API interactions, I help ensure your application is robust, secure, and scale.
API integration expertise includes:
REST & GraphQL API integration
Authentication and authorization flows
Data fetching and caching (React Query, SWR)
Error handling and edge cases
Performance optimization and network efficiency
API-driven architecture improvements
I have experience integrating REST and GraphQL APIs across projects of different complexity - from MVPs to large-scale production systems. My work includes authentication flows, error handling, data validation, and optimization of client–server communication to improve performance and user experience.
I offer end-to-end support: from API analysis and integration strategy to implementation, debugging, and long-term maintenance. Whether you need to integrate third-party services, refactor an existing data layer, or stabilize complex API interactions, I help ensure your application is robust, secure, and scale.
API integration expertise includes:
REST & GraphQL API integration
Authentication and authorization flows
Data fetching and caching (React Query, SWR)
Error handling and edge cases
Performance optimization and network efficiency
API-driven architecture improvements
Programming Languages
HTML & CSS, JavaScript, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, PSD to HTML, Performance OptimizationWhat's included $1,200
These options are included with the project scope.
$1,200
- Delivery Time 16 days
- Number of Revisions 0
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SC
Sean C.
Jun 26, 2026
Product Engineer, Mobile
Artem is a great developer and a pleasure to work with
JW
Jo W.
Apr 20, 2026
Next.JS Developer
MR
Michel R.
Apr 4, 2026
Figma to Next.js Website – Pixel-Perfect Frontend (Tailwind, Responsive, Animations)
Amazing work by Artem!
VL
Valerie L.
Mar 20, 2026
Senior React Developer
BK
Bahtiyar K.
Mar 14, 2026
React NextJS Backend implementation & React native mobile app
About Artem
Senior React Developer | React Native & React, Nest JS | Full-Stack.
100%
Job Success
Korosten, Ukraine - 9:22 am local time
🐝 Top 3% Freelancer on Upwork (Top 1% in Frontend Development)
🎉 7+ Years of Real-World Product Development
🏅 Meta & IBM Certified Frontend Developer
💰 Delivered projects generating $6M+ in revenue
🚀 Built 50+ MVPs and full-scale applications across industries
💫 I’m not just a developer - I treat every product like a carefully crafted LEGO build, where every small detail matters and every piece has to fit perfectly. I’m deeply detail-oriented and obsessed with creating polished, scalable and intuitive digital experiences that feel solid from every angle. For me, building products is not only about writing code - it’s about designing systems that are clean, reliable and thoughtfully engineered to grow with the business.
Over the years, I’ve worked with founders, startups and established companies across eCommerce, AI/ML, FinTech, MedTech, EdTech, AdTech and InsurTech. One thing I’ve learned is that successful products are never built by accident. The difference is always in the details - the smooth interaction a user doesn’t notice, the fast-loading page that keeps attention, the scalable architecture that prevents future chaos, or the tiny UX improvement that quietly increases conversions.
When I work on a product, I naturally start thinking beyond the task itself. I look at how every feature connects together, how users will actually experience it, how the product can scale months later and how to keep the codebase clean enough for long-term growth. I genuinely enjoy refining products piece by piece until everything feels intentional and well-crafted.
For me, development feels very similar to building with LEGO - every block matters and strong products are built through precision, patience and attention to structure. A single misplaced piece can affect the entire experience, while the right foundation allows the whole system to grow smoothly and confidently.
That mindset is what I bring into every collaboration: thoughtful engineering, product-oriented thinking and genuine care about the final result - not just completing tasks.
Tech Stack & Expertise
📱 React (Next.js, Remix, Gatsby), React Native, Vue (Nuxt, Vuex), Angular
🔧 TypeScript, Redux, Thunk, Saga, MobX, Recoil, REST, GraphQL, AJAX
🎨 Material UI, Ant Design, Chakra UI, Bootstrap, TailwindCSS, HTML5, SASS/SCSS
📲 Expo, Google Play, App Store
🚀 JAMstack, Netlify, Contentful, Chrome Extensions
🧪 Jest, Cypress, Jasmine, Mocha, Karma
🐙 GitHub, GitLab, Bitbucket
🖌️ Figma, Adobe Photoshop, Zeplin, InVision
📋 Agile, Kanban, Git Flow, Trello, Asana, Jira
I don’t just deliver features - I build products with care, precision and strong engineering foundations that help businesses scale confidently.
🚀 Let’s build something exceptional together.
Steps for completing your project
After purchasing the project, send requirements so Artem can start the project.
Delivery time starts when Artem receives requirements from you.
Artem works on your project following the steps below.
Revisions may occur after the delivery date.
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