You will get JavaScript Developer | Next.js | Next.js Developer | Front-End Developer
Rising Talent
Rising Talent
Project details
I’m a Nextjs Developer, JavaScript Developer, and Frontend Developer specializing in modern, responsive, and high-performance web applications using Next.js, React, and JavaScript.
I can help you build a new web application, improve an existing front end, fix codebase errors, or resolve Next.js, JavaScript, and React issues.
🚀 Skills & Tech Stack
Next.js / Nextjs
React / Reactjs
JavaScript
TypeScript
HTML5 & CSS3
Tailwind CSS
Bootstrap
Redux & state management
Node.js, Firebase, MongoDB & SQL
🚀 Services
Next.js and React Development
Responsive Front-End Development
UI implementation and optimization
JavaScript/React bug fixing
API and third-party integrations
Custom routing and navigation
Dashboard and admin panel development
Performance optimization
Google Maps integration
As a Front-End Developer ,I focus on clean code, responsive layouts, smooth functionality, and excellent user experiences across desktop, tablet, and mobile devices.
Whether you need a JavaScript Developer to fix an existing application or a Next.js Developer to build from scratch, I’m ready to help.
Send me your requirements before ordering so we can determine the best approach for your project.
I can help you build a new web application, improve an existing front end, fix codebase errors, or resolve Next.js, JavaScript, and React issues.
🚀 Skills & Tech Stack
Next.js / Nextjs
React / Reactjs
JavaScript
TypeScript
HTML5 & CSS3
Tailwind CSS
Bootstrap
Redux & state management
Node.js, Firebase, MongoDB & SQL
🚀 Services
Next.js and React Development
Responsive Front-End Development
UI implementation and optimization
JavaScript/React bug fixing
API and third-party integrations
Custom routing and navigation
Dashboard and admin panel development
Performance optimization
Google Maps integration
As a Front-End Developer ,I focus on clean code, responsive layouts, smooth functionality, and excellent user experiences across desktop, tablet, and mobile devices.
Whether you need a JavaScript Developer to fix an existing application or a Next.js Developer to build from scratch, I’m ready to help.
Send me your requirements before ordering so we can determine the best approach for your project.
Programming Languages
HTML & CSS, JavaScript, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, DesignWhat's included
| Service Tiers |
Starter
$100
|
Standard
$250
|
Advanced
$1,500
|
|---|---|---|---|
| Delivery Time | 2 days | 4 days | 12 days |
Number of Revisions | 1 | 5 | 3 |
Bug Investigation | |||
Fix Documentation | |||
Detailed Code Comments | - | - |
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AC
Alan C.
Dec 2, 2025
Fix React exceptions
Excellent experience working with Alex and the YOUR R&D team!
Alex is a very professional React Front End developer. He quickly resolved a series of exceptions and warnings that were impacting Application. He delivered a clean, maintainable solution using TypeScript, ensured smooth error handling. His attention to code quality, performance, and clear communication stood out.
Highly recommend for any project involving React, TypeScript, Frontend optimization.
Alex is a very professional React Front End developer. He quickly resolved a series of exceptions and warnings that were impacting Application. He delivered a clean, maintainable solution using TypeScript, ensured smooth error handling. His attention to code quality, performance, and clear communication stood out.
Highly recommend for any project involving React, TypeScript, Frontend optimization.
About Aleksander
TypeScript Developer | Next.js React | Type Script | HealthTech AI
Kyiv, Ukraine - 12:49 am local time
📊 A Nextjs TypeScript Healthcare platform i revamped increased user engagement and reduced frontend load times by 35%.
I’m a Senior TypeScript Next.js engineer with 10 years experience. I've shipped fast, scalable, accessible web applications with TypeScript, Next.js and React . I’ve built 25+ full-stack applications, 50+ high-performance Landing Pages, and 5+ scalable SaaS Development. I can act as a FrontEnd Architect and Tech Lead.
I design clean component architectures, robust state management, and reliable API integrations that scale. My work spans event/ticketing platforms, real-time crypto dashboards, secure enterprise admin panels, and full-stack SaaS (NestJS + GraphQL + PostgreSQL). I care about accessibility, performance optimization, and maintainability.
🚀 𝗞𝗲𝘆 𝗔𝗰𝗵𝗶𝗲𝘃𝗲𝗺𝗲𝗻𝘁𝘀
• Mentored 15+ junior developers into strong TypeScript & front end engineers
• Led 8 Web Development teams (Agile / Scrum / Kanban) delivering complex Web Applications on time
• Built secure CRMs, SaaS platforms with advanced dashboards, and Mobile Applications (React Native for iOS & Android)
• Reduced front-end load times ~40% via code splitting, lazy loading, performance optimization (Lighthouse)
• Improved development velocity ~30% with modular design patterns, scalable architectures (Turborepo + Vite)
• Increased SaaS user engagement ~25% through UI/UX improvements, responsive design, design-system consistency
• Delivered landing pages with 95+ Lighthouse performance scores
🎯 𝗦𝗲𝗿𝘃𝗶𝗰𝗲𝘀 𝗜 𝗼𝗳𝗳𝗲𝗿
- Frontend development with TypeScript Next.js React JavaScript (ES6+)
- Design systems & component libraries: shadcn/ui, Radix UI, Tailwind CSS, styled-components, vanilla-extract, CSS Modules
- API-driven applications: REST, GraphQL (Apollo Client), OpenAPI/Swagger, Axios; auth, RBAC, JWT, OAuth; form-heavy UIs (React Hook Form + Yup/Zod)
- Dashboards & real-time experiences: WebSockets, data visualization (ECharts), streaming state, pagination & caching
- Performance & refactoring: bundle splitting, lazy loading, route-level code splitting, Lighthouse audits, RUM
- Architecture: monorepos (Turborepo), Vite (React SWC), Webpack, OpenAPI Generator, CI/CD (GitHub Actions)
- QA & reliability: Playwright, unit tests, linting/formatting (ESLint, Prettier), conventional commits
🏆 𝗧𝗲𝗰𝗵 𝗦𝘁𝗮𝗰𝗸
- Front-End: Next.js TypeScript React, JavaScript (ES6+), Redux, Redux Toolkit, Redux-Saga, React Context, Jotai, TanStack Query, TanStack Router
- UI & Styling: Tailwind CSS, styled-components, CSS 3, HTML5, shadcn/ui, Radix UI, vanilla-extract, Responsive Design, Accessibility (react-aria-components), theming
- Forms & Data: React Hook Form, Yup, Zod, Axios, ECharts, Data Visualization best practices
- API Integration & real-time: REST, OpenAPI/Swagger, GraphQL (Apollo), WebSockets
- Back end & Database: Node.js, NestJS, Express, PostgreSQL, MySQL, Prisma, MongoDB, MERN exposure
- Tooling: Vite, Turborepo, Webpack, ESLint, Prettier, Docker, GitHub Actions, OpenAPI Generator, monorepo workflows
- Testing: Playwright, unit/integration
- Deployment & Observability: Vercel, Microsoft Application Insights, logging/monitoring hooks
- Mobile: React Native (iOS/Android), Flutter
🛠️ 𝗪𝗵𝘆 𝘁𝗲𝗮𝗺𝘀 𝗵𝗶𝗿𝗲 𝗺𝗲
• Speed without debt: typed APIs, clean boundaries, maintainable state (Redux Toolkit/Jotai/TanStack Query)
• Design-system mindset: focus/keyboard patterns, ARIA, theming, RTL, consistent tokens
• Handover: docs, CI/CD, lint/format rules, sensible folder conventions,
💬 𝗘𝗻𝗴𝗮𝗴𝗲𝗺𝗲𝗻𝘁 𝗺𝗼𝗱𝗲𝗹𝘀
• Fixed-scope MVPs with clear milestones & demos
• Part-time augmentation (frontend lead, feature owner)
• Audits & refactors (TypeScript migration, state cleanup, performance hardening)
📩 Have a spec, API, or Figma? Share it and I’ll send a mini plan (architecture, milestones, first shippable increment) and a clear fixed price for the initial slice.
🔍 𝗞𝗲𝘆𝘄𝗼𝗿𝗱 𝗯𝗹𝗼𝗰𝗸
Front-End Development, Frontend Developer, Front-End Architect, Senior TypeScript Developer, Remote TypeScript Developer, TypeScript, Nextjs Developer, Full Stack Developer, Web Developer, UI Developer, React Developer, Next.js, JavaScript Developer, React, Next.js, React Native, Vue.js, JavaScript, ES6, Redux, Redux Toolkit, Redux Saga, Zustand, Jotai, TanStack Query, TanStack Router, HTML5, CSS 3, SCSS, SASS, CSS Modules, Styled Components, Tailwind CSS, Material UI, shadcn/ui, Radix UI, vanilla-extract, UI, UX, UI/UX Design, Accessibility, ARIA, WCAG, Cross-Browser Compatibility, Framer Motion, Node.js, Express.js, NestJS, REST, REST API, API Integration, GraphQL, Apollo Client, WebSockets, MERN Stack, Full-Stack Development, PostgreSQL, MySQL, SQL, MongoDB, Prisma, Firebase, Supabase, Authentication, Authorization, RBAC, JWT, OAuth, Security, Vite, Webpack, Turborepo, Nx, Monorepo, npm, Yarn, ESLint, Jest
Steps for completing your project
After purchasing the project, send requirements so Aleksander can start the project.
Delivery time starts when Aleksander receives requirements from you.
Aleksander works on your project following the steps below.
Revisions may occur after the delivery date.
Next.js Development & Delivery
Analyze requirements, plan the UI, develop with Next.js, React, and JavaScript, implement routing, APIs and Redux, test and fix bugs, optimize responsiveness, and deliver a polished web application.