Hire the Best Mongrel Specialists
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Ronald L.

Pickens, South Carolina

$57/hr
5.0
20 jobs

Experienced software developer with specialization in Node.js, Express, React and MongoDB. I have 8 years of experience working with Node.js, MongoDB, React, Git, HTML, CSS, JS, REST APIs and Hyperledger Fabric. Send me an invite and let's discuss your project today!

  • Node.js
  • ExpressJS
  • React
  • JavaScript
  • EJS
  • MongoDB
  • Web Development
  • HTML5
  • CSS 3
  • Linux
  • NoSQL Database
  • Hyperledger Fabric
  • LangChain
  • Claude
  • Microsoft 365 Copilot
Hassan Ali K.

Edison, New Jersey

$12/hr
5.0
9 jobs

I am a Full-stack developer having more than 10+ years of experience in building websites and web applications. I have worked to build sites from scratch OR to create additional features for existing ones. I am always on the lookout for exciting projects to work on and smart people to collaborate with! Here you can see the following services I can provide you: 🛠️ Tech Stack Mastery: 👉 Front-end:: --✅ React.js --✅ Next Js --✅ Vue Js --✅ Tailwind CSS / Bootstrap --✅ HTML5 --✅ CSS3 --✅ SCSS/Less 👉 AI:: --✅ Open AI --✅ ChatGPT --✅ GPT-3 --✅ AI 👉 Back-end:: --✅ PHP / Laravel / Livewire --✅ Node Js --✅ Express JS --✅ GraphQL --✅ JQuery / Javascript 👉 Database Skills:: --✅ Mysql --✅ Postgresql --✅ MongoDB 👉 VCS:: --✅ GIT / BitBucket / Github / Gitlab 👉 Deployment:: --✅ AWS --✅ Digital Ocean 👉 Payment Gateway Integration:: --✅ Stripe --✅ PayPal --✅ Google Pay --✅ Apple Pay --✅ Afterpay --✅ Tillpayments --✅ Paytm --✅ Razorpay --✅ CashFree ↪️ Why I Should be best --✅ 100% client satisfaction. --✅ Attention to details and 24/7 support across. --✅ Code quality and performance review. Team leading and mentoring. --✅ Strong technical skills and business solutions provider. --✅ Always Open For new challenges and creative ideas. --✅ Strong organizational, problem-solving, and analytical thinking. --✅ Fluent in English and learn new skills very fast. I am considering work not only as a way to make a living. but also to build a career here at Upwork. So I tend to seek a long-standing relationship rather than just a quick benefit. Thanks for reading my profile. Looking forward to hearing back from you.c

  • Software Development
  • Web Development
  • Web Application
  • Node.js
  • React
  • MySQL
  • Desktop Application
  • Website
  • PHP
  • Laravel
  • MongoDB
  • Next.js
  • Docker
  • Firebase
  • SaaS Development
Amar A.

Arlington, Virginia

$20/hr
5.0
3 jobs

🌟 Full Stack Developer | MERN/MEAN Stack Expert | Certified Professional 🌟 Are you looking for a skilled Full Stack Developer to bring your project to life? With 7+ years of experience in building scalable high-performing applications, I can guarantee to bring your vision to reality. I specialize in MERN (MongoDB, Express, React, Node.js) and MEAN (MongoDB, Express, Angular, Node.js) stacks. I’m passionate about creating user-friendly, efficient, and maintainable solutions tailored to your needs. ✅ What I Can Do For You: 🌐 Back-End Development: • Develop and optimize RESTful APIs and GraphQL endpoints using Node.js, Express.js, and Nest.js. • Build robust back-end architectures with secure authentication, role-based access control, and database optimization. 🎨 Front-End Development: • Build dynamic, SEO-friendly web applications using React.js, Next.js, Angular, and TypeScript. • Design visually appealing, responsive UIs with Tailwind CSS, Material-UI, and Bootstrap. ☁️ Cloud & DevOps Expertise: • Architect and deploy scalable solutions on AWS (EC2, S3, Lambda, API Gateway, DynamoDB, RDS). • Set up CI/CD pipelines with GitHub Actions, GitLab CI, and Jenkins for automated deployments. 📊 Databases & Storage: • Design and maintain relational databases (MySQL, PostgreSQL) and NoSQL solutions (MongoDB, DynamoDB). • Optimize database performance through indexing, caching (Redis), and query optimization. 💻 JavaScript Excellence: • Master ES6+ features, async programming, and event-driven architectures. • Write modular, reusable, and scalable code for maintainable applications. ⚡ Real-Time Applications: • Build real-time features like chat apps, notifications, and live updates using WebSockets and Socket.IO. 🛠 Technologies I Work With: • Languages & Frameworks: JavaScript (ES6+), TypeScript, Node.js, Express.js, React.js, Next.js, Angular • Cloud & DevOps: AWS, Docker, Kubernetes, CI/CD Pipelines • Databases: MongoDB, MySQL, PostgreSQL, DynamoDB, Redis • Tools: GitHub, Bitbucket, Jenkins, GitLab CI • Testing: Jest, Mocha, Cypress 📌 Why Hire Me? • Proven track record of delivering high-quality software on time and within budget. • Strong focus on scalability, security, and performance. • Excellent communication skills and the ability to collaborate effectively with teams and stakeholders. 💬 Let’s Collaborate! Whether you need a complete end-to-end solution or enhancements to your existing application, I’m here to help. Let’s turn your vision into a fully functional, scalable application that drives results! 🚀

  • MongoDB
  • Node.js
  • JavaScript
  • AngularJS
  • React
  • Full-Stack Development
  • Next.js
  • NestJS
  • TypeScript
  • GraphQL
  • REST API
  • Websockets
  • Amazon Web Services
  • CI/CD
  • MySQL
Alexander G.

Los Angeles, California

$30/hr
5.0
11 jobs

Here's the version with improved formatting and organization: Full-Stack Developer & Data Solutions Specialist with enterprise experience at Nielsen and NYC government. Technical Core Backend: Node.js, Express.js, Hono, Cloudflare Workers Databases: MySQL, Oracle 11g, MS SQL Server Cloud Infrastructure: AWS (S3 CLI, EC2, IAM Admin) Cloudflare Microsoft Solutions Excel: Advanced formulas, Power BI, VBA automation Access: Full solutions with ODBC connectivity, forms, queries Data Visualization: Power BI, Tibco Spotfire AI-Enhanced Development: Claude Pro Key Achievements Developed Nielsen TV ratings QA system Managed data auditing for multi-billion dollar portfolios Created Virtual Restaurant Solutions platform Guest Instructor: University of Florida Services Full-stack development Microsoft enterprise solutions Data engineering & visualization Database architecture Custom business automation Master's in Technology Entrepreneurship. Bilingual (English/Spanish). Available for enterprise solutions and startup projects.

  • Database Design
  • Amazon Web Services
  • PostgreSQL
  • SQL Programming
  • Microsoft SQL Server
  • Node.js
  • Microsoft Access
  • JavaScript
  • SSH
  • Bootstrap
  • Ubuntu
  • Data Analysis
  • App Development
  • Web Design
Zachary H.

Montpelier, Indiana

$40/hr
5.0
4 jobs

I’m an IT Specialist with over 4 years supporting NASA’s Small Business Innovation Research (SBIR) Business Intelligence team where I helped modernize data systems, automate analytics, and build high-reliability cloud and web infrastructures. On Upwork, I bring that same level of professionalism and precision to every client engagement. I specialize in secure web server configuration, custom control panels, and data-driven backends that are lightweight, maintainable, and built for long-term reliability. What I Do Best: • Web server setup & hardening (Ubuntu, Nginx, SSL, MySQL, Node.js) • FastAPI / Node.js backend development & deployment • Custom web dashboards & control panels (HTML/CSS/Tailwind) • Automation scripts, cron tasks, and server monitoring • Cloud-native analytics with Databricks & Python • Agile project management & client communication My background bridges data engineering, backend development, and DevOps, so you get clean architecture, documentation, and seamless deployment without the guesswork. Whether you need a production-ready VPS setup, a management dashboard, or backend API automation, I’ll deliver a solution that’s secure, optimized, and ready for scale. Core Technologies: Python • FastAPI • Node.js • Nginx • MySQL/MariaDB • Databricks • AWS • Linux • REST APIs • Agile/Scrum Let’s make your systems reliable, secure, and scalable.

  • NGINX
  • FastAPI
  • Node.js
  • Linux System Administration
  • Web Server
  • Python
  • Databricks Platform
  • REST API
  • MySQL
  • Data Integration
  • DevOps
  • Cloud Computing
  • Agile Software Development
  • ETL Pipeline
  • Dashboard

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