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You will get a Full Stack Web App Built with React & Node.js

Mariya S.Status: Offline
Mariya S. Mariya S.
4.5
Top Rated
Preview image

Let a pro handle the details

Buy Web Application Programming services from Mariya, priced and ready to go.
Mariya S.Status: Offline
Mariya S. Mariya S.
4.5
Top Rated
Preview image

Let a pro handle the details

Buy Web Application Programming services from Mariya, priced and ready to go.

Project details

Over the years we’ve built hundreds of products - from scalable SaaS platforms and CRMs to data-extraction tools, WordPress plugins, and complex automation engines. Our core strength is translating complicated business requirements into clean, maintainable, and high-performance PHP systems that scale reliably.

Why clients work with US:
• 25+ years of enterprise-level PHP development
• 700+ full-stack applications and plugins across 20+ industries
• Long-term client relationships with consistently high satisfaction
• Strong full-stack background: backend architecture and modern frontends
• 50+ custom WordPress plugins powering high-traffic websites
• 30+ analytics dashboards with real-time backend pipelines
• Scraping systems processing billions of records from public and private sources
• Automation platforms saving thousands of man-hours annually

If you need a reliable technical partner to build, scale, automate, or modernize a PHP-based system - from APIs and dashboards to high-volume scrapers or custom WordPress plugins - we’ve done it many times and know where the real risks and shortcuts are.
Programming Languages
PHP, HTML & CSS, JavaScript
Coding Expertise
Cross Browser & Device Compatibility, Performance Optimization, Design

What's included $6,000

These options are included with the project scope.

$6,000
  • Delivery Time 30 days
  • Number of Revisions 0
    • Source Code
4.5
23 reviews
70% Complete
(16)
22% Complete
(5)
4% Complete
(1)
4% Complete
(1)
1% Complete
(0)

CT

Colt T.
5.00
May 15, 2026
React & React Native Developer | Full Stack JavaScript Developer The whole Sibers team was excellent to work with. I will be engaging with them any time I have web or mobile development needs in the future!

CT

Colt T.
5.00
May 15, 2026
React & React Native Developer | Full Stack JavaScript Developer I had a great experience with entire Sibers team. They were phenomal to work with. Extremely professional, detail-oriented, and accountable. I will absolutely be working with them again for all my development needs. It helps that they also have a wide breadth of expertise.

SI

Stephen I.
5.00
Nov 2, 2022
App for blockchain api

HG

Heiner G.
5.00
May 24, 2022
Developer needed to create a course-/time reporting tool for a small language school.

SR

Sam R.
5.00
Mar 23, 2022
Laravel Dashboard with REST APIs needed for Back-end of App and Website Great communication, projects were delivered on time and to specification.
Mariya S.Status: Offline

About Mariya

Mariya S.Status: Offline
Front End Developer React Developer Full Stack Developer React Next.js
100% Job Success
4.5  (23 reviews)
Platja d'Aro, Spain - 2:12 am local time
$1M+ earned on Upwork. 25+ years, 700+ projects, and deep JavaScript/TypeScript expertise across React, Next.js, Node.js & NestJS. I build and scale SaaS, web apps, automation, APIs, and complex platforms from architecture to production.

👋 I’m a veteran Senior Full-Stack JavaScript/TypeScript Engineer, Full Stack JavaScript Developer, React Developer, Node.js Developer, and Web Developer with 25+ years of experience building scalable web applications, SaaS platforms, automation systems, browser extensions, and enterprise-grade JavaScript products.

I work across the full product lifecycle - from architecture and UI development to backend APIs, cloud infrastructure, integrations, performance optimization, and production support. My core stack includes React, React.js, Next.js, Node.js, NestJS, TypeScript, Vue.js, Angular, PostgreSQL, MongoDB, Redis, AWS, Docker, and serverless technologies.

Over the years, I’ve delivered 700+ projects across SaaS, eCommerce, Fintech, Web-to-Print, EdTech, Healthcare, CRM, AI automation, marketplaces, analytics, and enterprise platforms.

🏆 RESULTS & EXPERIENCE

✔ 25+ years in full stack development and web engineering
✔ 700+ web, SaaS, React, Node.js, and automation projects delivered
✔ Systems handling 10M+ API requests per month
✔ 30+ applications scoring 90–100 in Lighthouse audits
✔ Backend performance improvements of up to 50%
✔ Production experience with startups, scaling products, and enterprise systems
✔ Advanced AWS serverless, event-driven, and real-time architecture
✔ CI/CD and monorepo workflows that accelerate delivery and simplify maintenance

⚡ FRONTEND / REACT DEVELOPMENT

As a Senior React Developer and Frontend Developer, I build fast, maintainable interfaces for SaaS platforms, dashboards, marketplaces, internal tools, and customer-facing applications.

My frontend expertise includes:

• React 18, React.js, Next.js 14+, Vue.js, Angular, TypeScript
• SPA, SSR, ISR, PWA, and responsive web application development
• Tailwind CSS, Material UI, SCSS, Bootstrap, and reusable UI systems
• Complex dashboards, analytics interfaces, charts, and data visualization
• Storybook, design systems, reusable component libraries, and UI architecture
• Nx, Turborepo, Module Federation, and micro frontend architecture
• Core Web Vitals, Lighthouse optimization, bundle reduction, and frontend performance
• Mobile-first development and React Native integrations
• Chrome extensions, browser extensions, content scripts, background services, and extension APIs
• Puppeteer, Playwright, browser automation, scraping workflows, and automated testing

🔌 NODE.JS / BACKEND DEVELOPMENT

As a Node.js Developer and Backend Developer, I design scalable APIs and backend systems that support complex business logic, real-time workflows, automation, and high-volume applications.

• Node.js, NestJS, Express, Koa, Hapi
• REST API and GraphQL development
• PostgreSQL, MongoDB, MySQL, DynamoDB, Firebase, Redis
• Prisma, Sequelize, TypeORM, Mongoose
• JWT, OAuth, RBAC, secure authentication, and permissions
• WebSockets, SocketIO, Redis, Kafka, and real-time infrastructure
• BullMQ, AWS SQS, queues, workers, and background processing
• Microservices and event-driven architecture
• AWS Lambda, EventBridge, Step Functions, and serverless systems
• ETL pipelines, analytics processing, and data aggregation
• OpenAI API, Dialogflow, AI integrations, and automation workflows

☁️ CLOUD, DEVOPS & DELIVERY

I build production-ready systems with reliable deployment, monitoring, and scaling workflows.

• AWS, Docker, CloudFront, S3, Vercel, Firebase
• GitHub Actions, GitLab CI/CD, Bitbucket Pipelines
• AWS CDK and infrastructure as code
• Sentry, Datadog, ELK Stack, logging, and monitoring
• Redis caching, database optimization, and cloud cost reduction
• Monorepos with Nx and Turborepo
• Secure deployment and environment management

🌍 PRODUCTS I BUILD

• SaaS platforms and startup MVPs
• AI-powered products and automation systems
• eCommerce and marketplace platforms
• CRM, ERP, and internal business tools
• Fintech and analytics applications
• Healthcare and EdTech platforms
• Real-time dashboards and reporting systems
• Browser extensions and browser automation tools
• API integrations and workflow automation
• Legacy platform modernization

⚙️ CORE TECHNOLOGIES

JavaScript, TypeScript, React, React.js, Next.js, Vue.js, Angular, Node.js, NestJS, Express, PostgreSQL, MongoDB, MySQL, Redis, AWS, Docker, Firebase, Vercel, GraphQL, WebSockets, Puppeteer, Playwright, Stripe, OpenAI API, SendGrid, PandaDoc.

✅ LET’S BUILD A PRODUCT THAT CAN SCALE

Message me If you need a Senior Full Stack Developer, Full Stack JavaScript Developer, React Developer, Next.js Developer, Node.js Developer, Backend Developer, or Web Developer who can take ownership of both architecture and delivery, I’d be glad to help.



Steps for completing your project

After purchasing the project, send requirements so Mariya can start the project.

Delivery time starts when Mariya receives requirements from you.

Mariya works on your project following the steps below.

Revisions may occur after the delivery date.

discussion and planning

Development

160 hours of custom software development

Review the work, release payment, and leave feedback to Mariya.