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$35/hr
100%
Job Success
$100K+ earned
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As a seasoned full-stack software developer and site reliability engineer, I have extensive experience in improving system architecture, refactoring legacy code, and managing product design and development roadmaps.
I am skilled in a variety of programming languages and tools, including JavaScript, C++, Java, Python, Node.js, PHP, and Bash, microservices, and functional and declarative programming using tools such as Ramda and Maybe. I have also developed fully functional mobile apps and websites using React, React Native, Next.js, Remix, Tailwind CSS, and Angular, along with technologies such as RxJS, MobX, and Redux to manage states and actions.
I have extensive experience in LLM prompt design and optimization, agentic workflows, and full-cycle AI automation development. I have contributed to the AI ecosystem in several projects, such as:
- A MCP server for preventing loops and stuckness in agent execution workflows: mcp-dual-cycle-reasoner
- A Python / Node.js framework for prompt management, versioning, and testing: Prompt Assembly Language (PAL)
In addition, I possess a dynamic and constantly evolving background in machine learning and deep learning, with a particular focus on developing and training neural networks, GPT, Transformers, and computer vision projects. My passion for this field extends to my recent exploration of RNN & VAE models trained for music generation.
Throughout my career, I have prioritized security in all of my work and have a deep understanding of best practices and technologies related to cybersecurity and cloud infrastructure, having worked with various platforms such as AWS, DigitalOcean, and Google Cloud. I am skilled in building systems from the ground up, with a focus on user interaction and the implementation of different paradigms and coding practices.
Here are some of the technologies, languages, and libraries that I am proficient in:
- Javascript
- Typescript
- Node (Express, NestJS)
- React, React Native, NextJS, Remix
- WebRTC and peer connectivity (LibP2P)
- Angular
- Web3 (ethers, web3, Alchemy, Infura)
- nanoGPT, LLaMa (LoRa, Alpaca), LangChain, LangGraph, RNN, HuggingFace Transformers
- PyTorch, HuggingFace, bitsandbytes
- Solidity
- Ethereum (L1, L2)
- AWS (Route53, ECS, Fargate, Lambda, IAM, etc)
- Python (FastAPI, Pandas, SciKit-learn, numpy, etc)
- Dart, Flutter
- Ngrx, Mobx, RxJS, Redux, Saga, Reselect
- Mongodb
- Redis
- SQL, MySQL, PostgreSQL
- Bootstrap, Material, Native Base
- Less, SCSS, CSS, Tailwind, Material-UI
- C++, Java, C#
- R
- Objective-C
- Android, iOS
- Meteor
- Net
- And many more...
$40/hr
100%
Job Success
$500K+ earned
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14+ years substantial experience as a Certified Microsoft Full Stack developer in Asp.net Core C#.Net, Office 365, Power Automate, WCF Services and Unit Testing and Sql Server.
12+ years’ plus experience working with multinational & national originations in offshore & managed services model. Primarily with Haliburton USA, Lincoln Education Services USA, National Health Services UK.
6+ years’ plus experience in architecting patterns in MVC, MVVM, Publisher / Subscriptions, Dependency Injections & SOA.
Unit testing and maintenance of .Net based enterprise applications under agile methodologies environment (scrum, Kanban). Expert in using Scrum tools like Jira, TFS, Asana & Click Up.
6+ years of experience in developing & maintaining .Net based enterprise solutions for Haliburton USA while working at LMKR (an offshore company working Haliburton USA for more than two decades). These solutions were Geo-Science and Engineering Centric Applications in WPF, Silver Light, WCF and Asp.Net
6+ years’ experience working on Complex Geo-Science and Engineering Solutions like Decision Space Desktop, Decision Space Search, Decision Space Analytics, Geographix-suite Xposim, Petro Bank Master Data Store (E & P) System. These software’s includes simulation’s, data interpretation and data intensive processing, Scientific Formula’s to be translated into business logic.
Good experience of handling large data volumes in Sql Server, Business Intelligence & Data Analytics & Reporting tools like Pentaho Analytics, Pentaho Kettle ETL, Microsoft BI Studio (SSRS, SSIS, SSAS) , Qlik Sense, Power BI and Crystal Reports
5+ years of experience in SAAS Applications development in Asp.Net, Html 5, CSS 3, Bootstrap, Java Script, JQuery, Knockout.JS, Angular.JS, Angular (Typescript), ReactJS.
Experience of using and consuming Federated Data Models of Tied VB as OData Restful Services.
Good experience in DevOps and using source Control like GIT, SVN & TFS.
Experience of doing Hardware integration with Biometric Devices, RFID Devices, Stepper Motors via TCP Ports & Serial Ports.
Experience of using 3rd part toolkit for WPF like Dev Express, Telerik Controls and Infragistics.
Associated with
TECFolk
$200K+
earned
Armenia
$24.25/hr
100%
Job Success
$50K+ earned
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I have 8+ years of experience in web programming I understand client requirements and try to fill those requirements at the appropriate time and suitable price.
I have experience in different domains based on eCommerce, Health industries, Fitness portals, Job portals, Sass applications, E-learning sites, and social networking.
My Skills include:
# Front-end
* JavaScript
* Vue.js
* Nuxt.js
* Vuetify
* VueX
* TypeScript
* SASS/LESS
* Bootstrap
* Material Design
* CSS 3
* HTML 5
# Back-end
* Laravel
* Symfony
* Yii
* CodeIgniter
* CakePHP
* Node.js with Express.js, Koa, Loopback.js
* MongoDB
* NoSQL
* PostgreSQL
* Oracle
# Tools
* WebPack
* Gulp
# Testing
* Mocha
* PhantomJS.
* PHP unit test.
* Laravel Dusk.
#CMS
* Wordpress
* Magento
* OpenCart
* Shopify
Web Scraping
I can scrape your data from the source you want and put it in the form you need it like any Database,
Excel, PDF, Word, Google Sheets, and so on.
I did web scraping projects in the past for example with these sources:
- Copart
- IAAI
- Facebook
- Twitter
- Google
- Apple Store
- Android App Store
- Investing.com
- Nasdaq
- CoinMarketCap
- HistData
Services
- Reactive Laravel Apps with the TALL stack
- Repository Design Patterns
- Development of responsive interface for websites using HTML5, CSS3, Twitter Bootstrap, Less, Sass
- Design of front-end architecture for single-page applications using Vue.js, React.js, AngularJs
- Design of back-end architecture using popular server-side Laravel, Symfony, Yii, and Node.js frameworks like Express, Sails.js
- Design of the full-stack architecture for single-page applications using Meteor, Telescope
- Development of charts and diagrams using D3.js
- Development using jQuery and all types of jQuery plugins
- TDD using Mocha, Jasmine, Karma, Protractor, QUnit
- Automation front-end minification, compilation, unit testing, and linting using Grunt or Gulp.
- Administration of SQL databases: MongoDB, MySQL, PostgreSQL
- Deployment of websites on Amazon AWS, Heroku
Regards Vigen
$42/hr
100%
Job Success
$50K+ earned
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I'm a Full-stack web developer with 6 years of experience building web apps that are being used by thousands of users.
Programming Languages: Javascript, Typescript, Solidity, Python, Rust.
Backend frameworks: Nest.js Express, loopback, Meteor.js.
Frontend frameworks: React.js, Angular, Vue, React Native, Ionic.
I always care about building long-term relationships with clients.
$22.2/hr
100%
Job Success
Available now
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🏆 Top Rated Plus Shopify Expert | Official Shopify Partner
✅ 8+ Years of Shopify Experience
✅ 150+ Stores Built & Optimized
✅ 7,000+ Hours Worked on Upwork
✅ Top Rated Plus Freelancer
I help eCommerce brands build, optimize, and scale Shopify stores that deliver measurable business results.
Over the past 8+ years, I have partnered with startups, growing DTC brands, and established businesses to create high-performing Shopify experiences focused on conversions, speed, usability, and long-term scalability.
Whether you need a complete Shopify store build, advanced custom functionality, performance optimization, or ongoing development support, I provide clean, maintainable solutions tailored to your business goals.
My Shopify Expertise Includes:
✔ Custom Shopify Theme Development
✔ Shopify 2.0 & Online Store 2.0 Architecture
✔ Shopify Plus Development
✔ Custom Sections & Theme Customization
✔ Shopify Liquid Development
✔ App Integrations & API Development
✔ Speed Optimization & Core Web Vitals
✔ AJAX Cart, Upsells, Bundles & Custom Features
✔ Subscription & Recharge Integrations
✔ Search & Discovery Customization
✔ Shopify Functions & Checkout Customizations
✔ Store Migration to Shopify
✔ Conversion Rate Optimization (CRO)
✔ Responsive & Mobile-First Development
✔ Figma to Shopify Development
Why Clients Work With Me:
• Business-focused solutions, not just code
• Fast communication and reliable delivery
• Clean, scalable, and maintainable development
• Strong understanding of eCommerce best practices
• Long-term support and partnership mindset
I believe successful Shopify development is more than building pages—it is about creating seamless shopping experiences that improve conversions, increase customer satisfaction, and support sustainable business growth.
If you're looking for a Shopify expert who combines technical expertise with a deep understanding of eCommerce, let's discuss your project.
$15/hr
100%
Job Success
$20K+ earned
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🏆 𝐒𝐡𝐨𝐩𝐢𝐟𝐲 Expert 𝐈𝐧𝐝𝐞𝐩𝐞𝐧𝐝𝐞𝐧𝐭 𝐟𝐫𝐞𝐞𝐥𝐚𝐧𝐜𝐞𝐫
🗓️ 𝙄𝙣𝙫𝙞𝙩𝙚 𝙢𝙚 𝙩𝙤 𝙮𝙤𝙪𝙧 𝙟𝙤𝙗, 𝙖𝙣𝙙 𝙄 𝙬𝙞𝙡𝙡 provide free support after complete your website
✅ 10+ years of experience in Shopify, Shopify Plus, Shopify Store Development, Shopify Store Designer, Shopify Theme development, Shopify Apps Development, Shopify Custom apps development, Shopify Public apps development, Liquid Coding and Shopify Storefront API and External API Integration
✅ Worked with more than 130+ Shopify projects.
✅ Completed 1300+ hours on Upwork.
✅ Good Written and Verbal English Skills
📅 Feel free to hit "𝐈𝐍𝐕𝐈𝐓𝐄" Button. Available to Start Immediately.
𝐌𝐲 𝐖𝐨𝐫𝐤 𝐞𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 𝐢𝐧𝐜𝐥𝐮𝐝𝐞𝐬:
✅ Shopify | Shopify 2.0 | Shopify Plus | Shopify Partner | Shopify stores Design | Shopify Store Development | Shopify Apps | Liquid Coding | Shopify Templates
✅ Shopify App development from Scratch using NodeJS, React, Laravel, Yii Framework
✅ Setup Shopify Store with responsive designs and optimized websites for performance and user experience.
✅ Implemented custom features and configured various Shopify Apps for enhanced functionality
✅ Shopify Apps (Oberlo, Dsers, Dropified, Importify, Spocket, Eprolo, etc.)
✅ Expertise with Shopify Page Builder Apps (Shogun, PageFly, GemPages, etc. )
✅ Shopify Store Design Using Figma, XD, Sketch and Photoshop.
✅ Shopify Custom Theme Design and Development (Free/Paid)
✅ Implemented custom features and functionality using Shopify's API and custom coding.
✅ Shopify Store Setup and Shopify Store Design
✅ Shopify Product template customization
✅ Custom checkout integration in Shopify
✅ Bold, and Recharge subscriptions.
✅ Shopify Store Management
✅ Shopify Store ongoing maintainance
I'm available full-time (up to 40 hours per week) and dedicated to your projects. Hire me Today!
So let's start the long-term business relationships :)
𝗥𝗲𝗹𝗮𝘁𝗲𝗱 𝗦𝗲𝗮𝗿𝗰𝗵: Gurjit Shopify Developers | Gurjit Shopify Designer | Shopify Templates Specialists | E-commerce Consultants | Ecommerce Website Development | Ecommerce Management Services & Solutions
Shopify expert on Upwork.
Shopify Developer Upwork.
Shopify Designer Upwork
Shopify Store set up Upwork.
Shopify website development Upwork.
Shopify Theme customization Upwork.
#Shopify #ShopifyStoreDesigner #ShopifyonlinestoreDesigner #ShopifyEcommerceDesigner #ShopifyDeveloper #ShopifyDesigner #Ecommerce #WebDesign #CSS #HTML #ShopifyPlus #SEO #Dropshipping #FrontEndDevelopment #ResponsiveDesign #WebDesign #UIUX #WebDev #Shopifyexpertupwork #ShopifyDesigner #Shopify #Topratedplusdeveloper # ShopifyE-commercePlatform #ShopifyOnlinestore #ShopifyWebsiteDesign #ShopifyExpert #ShopifySpecialist #ShopifyAppDeveloper #Ecommerce #Dropshipping #FrontEndDevelopment #LandingPage #Shopifyexpertupwork #ShopifyPlus #Ecommercedeveloper
𝙍𝙚𝙜𝙖𝙧𝙙𝙨,
@Gurjit #Shopify #ShopifyDesigner #ShopifyExpert #Shopifydeveloper #TopratedshopifyDesigner please check it . and made some small changes with same layout and design. Its for my upwork specialize profile
$22/hr
100%
Job Success
$30K+ earned
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I am a full-stack React Native and MERN Stack developer. I am an excellent programmer with good knowledge of front-end and back-end techniques, have more than seven years of experience in developing web applications.
I have experience in developing some Enterprise/Business Level applications where I have served clients of different markets & industries.
My favorite tech stack is Node in the backend and React, & Node in the frontend, but I am technology-agnostic and can quickly pick up any tech on the go. Here is a list of what I've used in the past:
- Node.js, React.js, jQuery
- Bootstrap, Material Design, Ant Design, Chakra UI
- TypeScript, React JS + ecosystem, Ember JS, Backbone JS, Meteor JS, Gatsby JS, Svelte JS, Next JS, Express JS
- PostgreSQL, MySQL, MongoDB, Amazon RDS
- Redis, Elasticsearch, Solr
- GitHub, GitLab, Bitbucket
- JIRA, Trello, Asana, $lack
- HTML5, CSS3
- Ubuntu, Nginx, Docker, Jenkins
- Scrum, Agile, TDD
- Cypress, Karma, Chai, Jasmine, Protractor, Selenium
- AWS, GCP, Digital Ocean
I work with honesty and ethics. I aim to provide excellent and cost-effective services to my clients. I assure you to provide the following
1. High Quality work
2. Meet Industry Standards in Technology/Design/Security
3. Daily status report
4. Quick response during the urgency
I give my 100% focus on even small details of the project and make it perfect. My goal is to do a project successfully by keeping high quality of work at a fair price. I am elementary and flexible to work.
CONTACT ME TODAY FOR YOUR PROJECT! Click the "Hire Now!" button on my profile.
Associated with
Crest Infosystems Pvt. Ltd.
$5M+
earned
$20/hr
100%
Job Success
$500K+ earned
Offers consultations
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I am a top-rated plus freelancer on Upwork, having completed many Healthcare projects in Android and iOS development using Swift, Objective-C, Kotlin, and Java. With 15 years of experience in mobile and web application development, I represent Technosoft Solutions, a company focused on healthcare software development. Technosoft is known for its exceptional Java/J2EE, .Net, Angular, React, Android, and iOS development capabilities, I bring a proven track record and strong references to the table. Our team is distinguished by its excellent communication skills and familiarity with JIRA and Trello, seamlessly integrating with on-site teams through daily scrums and status calls.
Our specialization in healthcare software development has led us to focus primarily on solutions for the U.S. market. Over our 15-year journey, we have developed numerous web and mobile applications for hospitals, pharmacies, physicians, patients, and device manufacturers. Our software is deployed in over a thousand U.S. hospitals and clinics, demonstrating our deep understanding of HL7, HIPAA, EDI, and other healthcare standards.
Our portfolio includes a wide range of applications tailored to various healthcare needs, including chronic care, rehabilitation, mental health, burn care, and more. We provide comprehensive HIPAA implementation services, from application compliance to security training, audits, vulnerability testing, and facility compliance. As a HIMSS-certified healthcare security professional since 2002 and a longstanding member of the Upwork community since 2006, my commitment to quality and customer satisfaction is reflected in our 100% success rate and five-star ratings.
At Technosoft, we pride ourselves on developing scalable applications that serve over 150,000 users and more than 1,000 hospitals and clinics across the USA. Our Harvard University graduate leadership, coupled with an affordable hourly rate starting at $18, ensures the highest quality of service. Our consistent 100% success rate over the last decade is a testament to our dedication and focus on quality software development.
We invite you to review our portfolio and customer feedback to see the unparalleled level of service we provide. Give us the opportunity to demonstrate our capabilities and commitment to excellence.
Associated with
Technosoft Solutions
$1M+
earned
$20/hr
100%
Job Success
$100+ earned
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I help businesses build scalable 𝘄𝗲𝗯 𝗮𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀 and 𝗔𝗜-𝗽𝗼𝘄𝗲𝗿𝗲𝗱 systems that 𝗮𝘂𝘁𝗼𝗺𝗮𝘁𝗲 𝘄𝗼𝗿𝗸, improve conversions, and support real growth. If you need a developer who understands both web architecture and applied AI—not experiments—you’re in the right place.
I work at the intersection of 𝗙𝘂𝗹𝗹 𝗦𝘁𝗮𝗰𝗸 𝗪𝗲𝗯 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 and 𝗔𝗽𝗽𝗹𝗶𝗲𝗱 𝗔𝗜 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻. That means I don’t just build web applications—I build systems: backend-driven platforms, APIs, dashboards, and AI-powered workflows that reduce manual effort, improve decision-making, and scale with your business.
🚀 𝗧𝗵𝗲 𝗩𝗮𝗹𝘂𝗲 𝗜 𝗗𝗲𝗹𝗶𝘃𝗲𝗿:
Web Development: Scalable, backend-driven applications (SaaS, CRMs, Portals).
Generative AI: Custom LLM agents that qualify leads, book appointments, and handle support.
Automation: End-to-end workflow orchestration that eliminates manual data entry.
🛠️ 𝗖𝗼𝗿𝗲 𝗦𝗲𝗿𝘃𝗶𝗰𝗲𝘀
𝟭. 𝗚𝗲𝗻𝗲𝗿𝗮𝘁𝗶𝘃𝗲 𝗔𝗜 & 𝗩𝗼𝗶𝗰𝗲 𝗔𝗴𝗲𝗻𝘁𝘀
📣 Voice Automation:Production-grade voice assistants using Twilio, Tenyx, and VAPI. I build systems that handle inbound/outbound calls, qualify leads, and sync appointments directly to your calendar.
🤖 RAG & Chatbots: Custom chatbots that "know" your business. I use LangChain, Pinecone, and OpenAI/LLaMA to ingest your PDFs and docs for grounded, accurate answers.
🦾 Lead Gen Automation: Connecting AI to n8n, Make, or Zapier to automate outreach, scoring, and CRM updates (HubSpot/Pipedrive).
𝟮. 𝗙𝘂𝗹𝗹 𝗦𝘁𝗮𝗰𝗸 𝗪𝗲𝗯 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁
🎨 Frontend Architecture: Responsive, high-performance dashboards and SPAs using React.js, Vue.js, or Angular.
</> Robust Backends: Secure API development using Python (FastAPI/Django), Node.js, or PHP (Laravel).
🛠️ SaaS & MVPs: From database design (PostgreSQL/MongoDB) to deployment (Docker/AWS), I take products from concept to launch.
💻 𝗧𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗦𝘁𝗮𝗰𝗸
𝗗𝗼𝗺𝗮𝗶𝗻 .................. 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝘆 𝗦𝘁𝗮𝗰𝗸
𝗕𝗮𝗰𝗸𝗲𝗻𝗱 & 𝗔𝗣𝗜𝘀 ... Python (Django, FastAPI, Flask) PHP (Laravel) Node.js (Express.js)
𝗙𝗿𝗼𝗻𝘁𝗲𝗻𝗱 & 𝗨𝗜 ....... React.js (SPA, Dashboards), Vue.js, Angular Tailwind CSS, Bootstrap, HTML5,
SCSS, ES6+
𝗔𝗜 & 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 ... LangChain, OpenAI, Twilio, VAPI, Tenyx n8n, Make, Pinecone (Vector DB)
𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲𝘀 ............. PostgreSQL, MySQL, MongoDB, Redis, SQLite
𝗜𝗻𝗳𝗿𝗮𝘀𝘁𝗿𝘂𝗰𝘁𝘂𝗿𝗲 ...... Docker, AWS, REST APIs, Third-party Integrations (Stripe)
Let’s build a system that works for you. Click "𝙄𝙣𝙫𝙞𝙩𝙚" to discuss your project and see if we’re a good fit.
$20/hr
100%
Job Success
$90K+ earned
Offers consultations
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Building Smart, Scalable, AI-Powered Applications! 🚀
Hi there! I’m Anupam, a Web Application Developer with over 10 years of experience turning ideas into reality. From sleek, interactive websites to robust, scalable applications, I craft solutions that deliver value and results.
Frontend Mastery 🎨
Expert in React, Angular, Vue.js, and React Native
UI/UX wizardry with tools like Figma, Tailwind CSS, Bootstrap, and Custom CSS
Pixel-perfect designs and seamless user experiences
Skilled in building Mobile-First and Progressive Web Apps (PWAs)
Backend Genius 💻
Proficient in Node.js, Express.js, NestJS, GraphQL, PHP, and Golang
Database expertise: MySQL, PostgreSQL, and MongoDB
Delivering clean, secure, and maintainable code
Comprehensive Solutions, Simplified 🌟
AI integration for smarter, future-ready applications
Deployment on AWS, Google Cloud, Heroku, and Firebase
API integrations for Google, Facebook, and other platforms
Workflow optimization using GitHub, GitLab, and Bitbucket
Why Clients Choose Me
✅ Proven success in delivering projects that surpass goals
✅ A transparent and collaborative approach
✅ On-time delivery and post-project support
✅ Passionate about crafting solutions tailored to your business
Let’s create something amazing together! 💡 Whether you need an AI-powered solution, a visually stunning app, or a seamless user experience, I’m here to bring your vision to life.
Best regards,
Anupam
Associated with
stackasian
$100K+
earned